Adinath Electronics

The 74HC273D is a high-speed CMOS octal D-type flip-flop with a common clock (CP) and master reset (MR) input. This device is designed to provide eight identical D-type flip-flops in a single package.

• Function: The outputs ( Q n​ ) assume the state of their corresponding data inputs ( D n​ ) on the positive-going edge of the clock pulse (CP).

• Reset Function: The master reset (MR) input is active LOW. A LOW signal on MR forces all outputs ( Q 0​  through  Q7​) to a LOW logic level, regardless of the clock or data inputs.

• The 74HC273D is an octal positive-edge triggered D-type flip-flop. While historically produced by NXP Semiconductors (and its predecessor Philips Semiconductors), Nexperia has acquired this part of the business, and they are now the primary source for this datasheet. The D suffix typically denotes the SOIC (Small Outline Integrated Circuit) package.

  Here is a summary of the datasheet information for the 74HC273D:

   

  General Description

   

  The 74HC273D is a high-speed CMOS octal D-type flip-flop with a common clock (CP) and master reset (MR) input. This device is designed to provide eight identical D-type flip-flops in a single package.

  • Function: The outputs (Qn​) assume the state of their corresponding data inputs (Dn​) on the positive-going edge of the clock pulse (CP).

  • Reset Function: The master reset (MR) input is active LOW. A LOW signal on MR forces all outputs (Q0​ through Q7​) to a LOW logic level, regardless of the clock or data inputs.

   

  Key Features

   

  • Supply Voltage Range: 2.0 V to 6.0 V.

     

  • Logic Type: High-speed Si-gate CMOS.

     

  • Input Levels: CMOS level (74HC family).

     

  • Common Controls: A single clock (CP) and master reset (MR) for all eight flip-flops.

  • Low Power Consumption: Characteristically low quiescent supply current (ICC​).

  • High Noise Immunity: As is typical for CMOS devices.

  • ESD Protection: Inputs are equipped with clamp diodes for protection against static discharge.

The L7805CD2T-TR voltage regulator, produced by STMicroelectronics, is a 3-pin, surface-mount device housed in a D²PAK (TO-263) package designed for board-level step-down voltage regulation where robust performance is essential. Engineered to provide a fixed 5V output from input voltages up to 35V, this regulator can deliver up to 1.5A of output current when proper heat sinking is ensured. Internally, it incorporates comprehensive protective features including thermal overload shutdown, current limiting, and output transistor safe operating area (SOA) protection, effectively making the device indestructible under normal operating conditions. These safeguards ensure dependable performance even in demanding environments, protecting sensitive loads from voltage spikes, overheating, or short-circuit faults.
The L7805CD2T-TR is part of the versatile L78xx family of positive voltage regulators, which covers a wide range of fixed output voltages, making it suitable for a variety of local regulation tasks in distrib

The MAX232DR is a dual EIA-232 driver/receiver integrated circuit (IC) manufactured by Texas Instruments, designed to facilitate RS-232 communication between TTL/CMOS logic (5V) and RS-232 serial ports (±12V). Below is a detailed description of its key features, specifications, and applications:
Part Number Breakdown: MAX232DRMAX232: Indicates the device family (dual RS-232 transceiver).
D: Denotes the SOIC (Small Outline Integrated Circuit) package.
R: Indicates tape-and-reel packaging for automated assembly.
Key FeaturesPackage & Pins:
16-pin SOIC (D) package with dimensions 9.9mm × 6.0mm.
Tape-and-reel packaging for high-volume production (2500 units per reel).
Voltage & Power:
Single 5V supply (operating range: 4.5V to 5.5V).
Low power consumption: 8mA typical supply current.
Internal charge pump generates ±7.5V RS-232 voltages using four external 1µF capacitors.
Performance:
Compliant with TIA/EIA-232-F and ITU V.28 standards.
Data rate: Up to 120 kbps.
Driver outputs: ±5V to ±7.5V (RS-23

The IR2101STRPBF is a high-voltage, high-speed power MOSFET and IGBT gate driver produced by Infineon Technologies (formerly International Rectifier). It is specifically designed as a "Half-Bridge" driver, meaning it can independently control both a high-side and a low-side power switch in a circuit.


Key Features

•  Floating Channel: Designed for bootstrap operation, allowing the high-side channel to operate at up to +600V.³

   

•  Rugged Design: Features proprietary HVIC and latch-immune CMOS technologies to ensure stability against negative transients and ⁴$dV/dt$ noise.⁵

   

• Matched Delays: Propagation delays are matched for both the high-side and low-side channels, which is critical for preventing "shoot-through" (where both switches are on at the same time, causing a short).

• Non-Inverting Logic: The output signals are in phase with the input signals (unlike its sibling, the IR2102, which is out of phase).⁶

The IR2104STRPBF is a high-voltage, high-speed power MOSFET and IGBT gate driver.The primary advantage of the IR2104 is its Single Input (IN) control scheme. Unlike the previous models that require two separate PWM signals from your microcontroller, the IR2104 generates the complementary high-side and low-side signals internally from just one input.

The IR2104STRPBF is a high-voltage, high-speed power MOSFET and IGBT gate driver.¹ It is the most "automated" of the three drivers you have asked about ($IR2101$, $IR2103$, and $IR2104$).

 

The primary advantage of the IR2104 is its Single Input (IN) control scheme.² Unlike the previous models that require two separate PWM signals from your microcontroller, the IR2104 generates the complementary high-side and low-side signals internally from just one input.³

 

Key Specifications Distinctive Features

•  Single Input Control: A logic "High" on the IN pin turns on the high-side MOSFET, and a logic "Low" turns on the low-side MOSFET.⁴ This simplifies programming as you only need one PWM channel.

   

• Shutdown Pin (SD): This is an active-low input. When pulled low, it force-closes both the high and low-side switches, providing an emergency stop or power-saving feature.⁵

   

•  Cross-Conduction Prevention: Like the IR2103, it has built-in hardware protection to ensure both switches are never on at the same time.⁶

   

• Automatic Deadtime: It automatically inserts a ~520ns delay during switching transitions to prevent shoot-through, ensuring the first MOSFET is fully off before the second one turns on.

the IR2136STRPBF is a high-voltage, high-speed 3-phase gate driver. It is the modern, "improved" successor to the IR2130 series. While it still controls 6 power switches (3 high-side and 3 low-side), it features significantly faster switching speeds and more refined logic handling.


Key Features & Improvements

• Ultra-Fast Switching: While the older IR2130 had a deadtime of 2.5µs, the IR2136 has a much tighter deadtime of 290ns. This allows for higher PWM frequencies (up to 20-30kHz) which reduces audible motor noise and improves efficiency.

• Non-Inverting Logic: HIN and LIN pins are Active High. This is a safety improvement because if a microcontroller pin floats during startup, the driver won't accidentally turn on the MOSFETs (unlike inverting drivers).

• Advanced Protection: * ITRIP: A dedicated pin for over-current protection that shuts down all outputs.

  • RCIN: Allows you to program the "Fault Clear" time using an external RC network.

  • EN (Enable): A dedicated pin to enable or disable the entire bridge.

• Under-Voltage Lockout (UVLO): Independent UVLO for both high-side and low-side supplies to prevent the MOSFETs from operating in their linear (overheating) region.

TC1264‑3.3VDBTR — 3.3 V Low Dropout Linear Regulator (LDO)

The TC1264-3.3VDBTR is a fixed-output low-dropout (LDO) linear voltage regulator manufactured by Microchip Technology. It’s designed to provide a stable, regulated 3.3 V output from a higher input supply with low power loss, making it ideal for powering 3.3 V digital circuits and peripheral devices in embedded systems and consumer electronics.

This device is built on CMOS technology, which yields very low quiescent current (typically around tens of microamps) and efficient operation under light loads — an advantage for battery-powered applications. The regulator can deliver up to 800 mA of output current, sufficient for a wide range of microcontrollers, sensors, and communication modules.

A key characteristic of the TC1264-3.3VDBTR is its low dropout voltage — typically around 0.45 V at moderate load and up to about 1.3 V at full load of 800 mA. This means the input voltage must be only slightly above the desired 3.3 V output (for example, around 4.5 V–5 V) to maintain regulation, improving efficiency over traditional linear regulators, especially when supply headroom is limited.

The regulator operates over a wide industrial temperature range (−40 °C to +125 °C), making it suitable for automotive and industrial environments. It also includes built-in protection features such as over-current limiting and thermal shutdown, which enhance reliability under fault conditions.

The part is housed in a SOT-223-3 surface-mount package with tab (3+tab) for improved thermal dissipation, allowing designers to mount it directly on PCBs with adequate copper area for heat spreading.

Typical applications include embedded systems, microcontroller power supplies, digital logic circuitry, wireless modules (Wi-Fi/Bluetooth), portable devices, and general 3.3 V power regulation where stable and efficient voltage supply is required. 

The AD8221 is a gain programmable, high performance instrumentation amplifier that delivers the industry’s highest CMRR over frequency in its class. The CMRR of instrumentation amplifiers on the market today falls off at 200 Hz. In contrast, the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz for all grades at G = 1. High CMRR over frequency allows the AD8221 to reject wideband interference and line harmonics, greatly simplifying filter requirements. Possible applications include precision data acquisition, biomedical analysis, and aerospace instrumentation.

GENERAL DESCRIPTION The ADM2481 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on balanced, multipoint bus transmission lines. It complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E). Using iCoupler® technology from Analog Devices, Inc., the ADM2481 combines a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single package. The logic side of the device is powered with eith

The 74HC373 and 74HCT373 are octal D-type transparent latches with 3-state outputs, designed for bus-oriented applications. These devices feature latch enable (LE) and output enable (OE) inputs, providing control over data storage and output states. The 74HC373 operates at CMOS levels, while the 74HCT373 is compatible with TTL levels, making them versatile for interfacing with different logic families.
Pins and Functions:
OE (Pin 1): Output enable input (active LOW). When HIGH, outputs are in a high-impedance state.
Q0-Q7 (Pins 2, 5, 6, 9, 12, 15, 16, 19): 3-state latch outputs.
D0-D7 (Pins 3, 4, 7, 8, 13, 14, 17, 18): Data inputs.
GND (Pin 10): Ground (0 V).
LE (Pin 11): Latch enable input (active HIGH). When HIGH, data inputs are transparent to outputs; when LOW, data is latched.
VCC (Pin 20): Supply voltage (2.0 V to 6.0 V for 74HC373; 4.5 V to 5.5 V for 74HCT373).
Voltage Specifications:
Supply Voltage (VCC):
74HC373: 2.0 V to 6.0 V.
74HCT373: 4.5 V to 5.5 V.
Input Voltage (VI): 0 V to VCC.

STM32F030C6T6 – 48 MHz 32-bit Microcontroller Overview

The STM32F030C6T6 is a 32-bit microcontroller from STMicroelectronics, based on the ARM® Cortex®-M0 core and part of the STM32F0 series. It is designed for cost-sensitive embedded applications that require higher performance than 8-bit controllers while maintaining low power consumption and simple system design. The device operates at a maximum clock frequency of 48 MHz, enabling fast and efficient execution of control and communication tasks.

The microcontroller includes 32 KB of Flash memory for program storage and 4 KB of SRAM, providing sufficient memory for small to medium embedded applications. The Cortex-M0 core features a 32-bit architecture and a Harvard bus structure, allowing efficient instruction execution and improved code density. Programming and debugging are supported through the Serial Wire Debug (SWD) interface, simplifying development and testing.

The STM32F030C6T6 operates from a single supply voltage in the range of 2.0 V to 3.6 V, making it suitable for low-power and battery-powered systems. It supports multiple clock sources, including an internal high-speed oscillator, an internal low-speed oscillator, and an optional external crystal for applications requiring precise timing.

On-chip peripherals include general-purpose I/O pins with external interrupt capability, general-purpose timers with PWM functionality, and a 12-bit analog-to-digital converter (ADC) for accurate analog signal measurement. The device also integrates standard communication interfaces such as USART, SPI, and I²C, enabling easy connectivity with a wide range of external components and communication protocols.

To improve system reliability, the STM32F030C6T6 features independent and window watchdog timers, power-on reset, and brown-out detection. Supported by the STM32CubeMX configuration tool and STM32CubeIDE development environment, the STM32F030C6T6 is widely used in industrial control, consumer electronics, sensor interfacing, and basic automation applications, offering an excellent balance of performance, cost, and ease of use.

STMicroelectronics STW10N95K5 MOSFETs is an N-channel power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) designed by STMicroelectronics, tailored for high-voltage switching applications in industrial and power conversion systems. This discrete transistor is part of ST’s SuperMESH 5 family of MOSFETs, which are engineered to offer superior performance by combining high voltage blocking capability with relatively low conduction losses and efficient switching characteristics.

The STW10N95K5 features a drain-to-source voltage (Vdss) rating of 950 V, making it suitable for circuits where large voltage swings occur — such as offline power supplies, motor drives, uninterruptible power supplies (UPS), and renewable energy inverters. Its continuous drain current rating is around 8 A, allowing it to handle significant load currents in medium-power designs.

One of the key electrical parameters is its on-state resistance (Rds(on)), typically around 0.65 Ω when driven with a gate voltage of 10 V. Lower on-resistance helps reduce conduction losses and improves overall efficiency. The device also boasts ultra-low gate charge, which aids in reducing switching losses and makes it easier to drive in fast switching applications.

Mechanically, the MOSFET is housed in a TO-247 through-hole package with three leads, which facilitates robust mounting and helps dissipate heat effectively, especially when combined with external heatsinks. It supports a wide operating temperature range (up to 150 °C junction temperature), ensuring reliability in demanding environments.

With features like avalanche energy capability and Zener-protected gates, this MOSFET is designed to withstand voltage transients and rugged operating conditions, making it a solid choice for engineers working on converter designs, power conditioning, and energy-efficient electronics. 

The STWA88N65M5 from STMicroelectronics is a high-performance N-channel power MOSFET engineered for demanding switching and power conversion applications. It belongs to ST’s MDmesh™ M5 series, a lineup of super-junction MOSFETs that combine advanced vertical silicon process technology with an optimized horizontal layout to deliver extremely low on-resistance and excellent switching performance — traits essential for efficient high-power systems.

Operated as an enhancement-mode transistor, this device is rated for a drain-to-source voltage (V₍DSS₎) of 650 V, making it suitable for high-voltage environments such as power supplies, motor drives, photovoltaic inverters, and telecom infrastructure. It can handle continuous drain currents up to about 84 A at 25 °C, enabling robust performance in medium-to-heavy power conversion roles.

One of its key electrical strengths is the relatively low on-state resistance (R₍DS(on)₎) — typically around 29 mΩ with a standard 10 V gate drive — which minimizes conduction losses and improves overall system efficiency. Low gate charge (Qg) helps reduce switching losses and allows faster transitions, making the MOSFET easier to drive and more efficient in hard-switching PWM or power factor correction (PFC) topologies.

Packaged in a TO-247 long-leads through-hole case, the STWA88N65M5 offers good thermal performance and mechanical stability, and is 100 % avalanche tested for ruggedness under transient conditions. Its typical maximum gate-to-source voltage (V₍GS₎) rating of ±25 V ensures robust control and reliability.

Overall, the STWA88N65M5 is ideal for high-voltage, high-current power switching where efficiency and heat management are critical — such as server PSU stages, industrial converters, battery chargers, and renewable energy inverters.

Seven open collector darlington pairs with common emitters are found in each high-voltage, high-current darlington array. Relay drivers, stepper and DC brushed motor drivers, lamp drivers, gas discharge and LED display drivers, line drivers and logic buffers may all benefit from this.

The PIC16F876A-I/SP is an 8-bit microcontroller from Microchip Technology’s PIC16F87xA family, widely used in embedded systems that require reliable performance, integrated analog features, and straightforward development. Based on the mid-range PIC architecture, it has long been a popular choice for industrial control, instrumentation, and educational applications.

This microcontroller provides 14 KB of Flash program memory, 368 bytes of SRAM, and 256 bytes of EEPROM, offering sufficient resources for control-oriented firmware and non-volatile data storage. It operates over a supply voltage range of 4.0 V to 5.5 V, making it well suited for traditional 5 V systems. The “-I” suffix denotes support for the industrial temperature range of –40°C to +85°C, while the “/SP” package indicates a 28-pin PDIP, ideal for prototyping, breadboarding, and through-hole assembly.

The PIC16F876A features a strong set of integrated peripherals. Its analog capabilities include a 10-bit Analog-to-Digital Converter (ADC) with up to five input channels, enabling accurate measurement of analog signals. Digital peripherals include three timers, two Capture/Compare/PWM (CCP) modules for motor control and pulse-width modulation, and a Universal Synchronous Asynchronous Receiver Transmitter (USART) for serial communication. An MSSP module provides support for SPI and I²C, allowing easy interfacing with sensors, memory devices, and other peripherals.

The device supports both internal and external oscillator options, with operating frequencies up to 20 MHz, offering flexibility in clock source selection. In-circuit serial programming (ICSP) and debugging support simplify development and firmware updates.

Overall, the PIC16F876A-I/SP remains a dependable microcontroller for applications such as industrial automation, data acquisition, motor control, and training platforms, where 5 V operation, integrated analog features, and long-term availability are important considerations.

The PIC16F887-I/PT is an 8-bit microcontroller from Microchip Technology, belonging to the widely used PIC16F family. It is designed for embedded control applications that require a balance of performance, flexibility, and low power consumption. The device is based on Microchip’s enhanced Harvard architecture, which allows simultaneous access to program and data memory, improving execution efficiency. It operates with a maximum clock frequency of 20 MHz, delivering up to 5 MIPS, making it suitable for real-time control and monitoring tasks.

The PIC16F887 features 8 KB of Flash program memory, 368 bytes of SRAM, and 256 bytes of EEPROM, enabling reliable storage of application code, variables, and non-volatile data such as configuration parameters. It supports in-circuit serial programming (ICSP), which simplifies firmware updates and debugging during development and production.

One of the key strengths of the PIC16F887-I/PT is its rich set of peripherals. It includes up to 35 general-purpose I/O pins, allowing direct interfacing with sensors, displays, and external devices. The microcontroller integrates a 10-bit analog-to-digital converter (ADC) with up to 14 input channels, making it ideal for analog signal measurement applications. Additional peripherals include USART for serial communication, SPI and I²C (via MSSP module) for synchronous data transfer, three timers, Capture/Compare/PWM (CCP) modules for motor control and signal generation, and a watchdog timer for system reliability.

The “I/PT” designation indicates the industrial temperature range (-40 °C to +85 °C) and a TQFP package, which is suitable for compact PCB designs and surface-mount assembly. With low power operation, flexible clock options (including internal oscillator), and strong community and tool support, the PIC16F887-I/PT is commonly used in industrial control, consumer electronics, automation, educational projects, and embedded system development.

8-bit AVR® RISC-based microcontroller (MCU) with picoPower® technology. It combines 32kB ISP flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 27 general purpose I/O lines, 32 general purpose working registers, five flexible timer/counters with compare modes, internal and external interrupts. It also features two USARTs with wake-up on the start of transmission, two byte-oriented 2-wire serial interfaces, two SPI serial ports, an 8-channel 10-bit A/D converters, a programmable watchdog timer with internal oscillator, a unique serial number, and six software selectable power saving modes.

Features:

1. Low power consumption
2. 8-bit microcontroller
3. Part of the AVR ATmega328 series
4. 20 MHz clock speed
5. 32 KB of memory
6. 32 pins for connectivity

Package Includes:

1 x ATMEGA328PB-AU MICROCHIP 8 Bit MCU, AVR, AVR ATmega Family ATmega328 Series Microcontrollers, AVR, 20 MHz, 32 KB, 32 Pins

The TLP350 is a photocoupler in a DIP8 package that consists of a infrared light-emitting diode (LED) optically coupled to an integrated high-gain, high-speed photodetector IC chip. It provides guaranteed performance and specifications at temperatures up to 100 �. The TLP350 has an internal Faraday shield that provides a guaranteed Common-mode transient immunity of ±15 kV/ µs. It has a totem-pole output that can both sink and source current. The TLP350 is ideal for IGBT of small capacity to middle capacity and power MOSFET gate drive.

TLP621M is a phototransistor coupler that consists of a phototransistor optically coupled to infrared emitting diode in a 4pin DIP. TLP621M is guaranteed high isolation voltage (5000 Vrms) and wide operating temperature (-55 to 125 �). TLP621MF is a lead forming type for the long creepage mounting of TLP621M

The operational amplifiers (op amps) LM358 and LM2904 are industry standards and feature two high-voltage (36 V) op amps. The LM358B and LM2904B devices are the next-generation versions of these devices. With features like low offset (300 V, typically), common-mode input range to ground, and high differential input voltage capabilities, these devices offer exceptional value for cost-sensitive applications.

The ICE3PCS01G is a 14-pins wide input range controllerIC for active power factor correction converters. It is designedfor converters in boost topology, and requires fewexternal components. Its power supply is recommended tobe provided by an external auxiliary supply which willswitch on and off the IC.

Product Highlights:
• High efficiency over the whole load range
• Lowest count of external components
• Accurate and adjustable switching frequency
• Bulk voltage good signal for inrush relay control or PWM IC enabling
• Integrated digital voltage loop compensation
• Fast output dynamic response during load jump
• External synchronization
• Extra low peak current limitation