IC chip – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 21 Jun 2026 07:44:38 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.3 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp IC chip – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 ULN2003 Darlington Driver IC https://hamtechtechnologies.com/product/uln2003-darlington-driver-ic/ https://hamtechtechnologies.com/product/uln2003-darlington-driver-ic/#respond Thu, 20 Nov 2025 03:28:24 +0000 https://hamtechtechnologies.com/?post_type=product&p=272 The ULN2003 is a versatile 7-channel NPN Darlington transistor array designed to interface microcontrollers—such as Arduino, ESP32, ESP8266, and Raspberry Pi—with high-current and high-voltage loads. Each of the seven channels can sink up to 500mA, making it suitable for driving relays, indicators, lamps, solenoids, and especially stepper motors such as the 28BYJ-48.

The IC includes integrated flyback diodes, offering built-in protection when switching inductive loads. It accepts both 3.3V and 5V logic, making it perfect for modern embedded systems. The ULN2003 is widely used in automation systems, robotics, vending machines, automotive projects, and industrial control circuits.

Key Features:

  • 7-channel NPN Darlington driver

  • Up to 500mA current sinking per channel

  • Handles load voltages up to 50V

  • Built-in freewheeling diodes for inductive protection

  • Compatible with 3.3V/5V logic

  • Ideal for stepper motors, relays, solenoids, LED drivers

  • Companion to shift registers (74HC595) and microcontrollers

]]> https://hamtechtechnologies.com/product/uln2003-darlington-driver-ic/feed/ 0 HC595 Shift register https://hamtechtechnologies.com/product/265/ https://hamtechtechnologies.com/product/265/#respond Wed, 19 Nov 2025 04:04:20 +0000 https://hamtechtechnologies.com/?post_type=product&p=265 The 74HC595 Shift Register is a high-speed CMOS device used to expand digital output pins using only 3 microcontroller pins. It features an 8-bit serial input and a parallel output latch, enabling efficient control of multiple outputs such as LEDs, 7-segment displays, relays, and more.

By daisy-chaining multiple 74HC595 chips, you can scale up your output capacity to dozens or even hundreds of pins. The device operates from 2V–6V, making it compatible with most logic-level microcontrollers. It includes storage registers, output latches, and tri-state outputs for stable and reliable operation.

Ideal for LED matrices, display driving, multiplexing projects, and automation circuits.

Key Features:

  • 8-bit serial-in, parallel-out shift register

  • Operates on 2V to 6V

  • High-speed CMOS technology

  • Cascade/daisy-chain support

  • Low power consumption

  • Tri-state outputs

  • Compatible with Arduino, ESP32, ESP8266, Raspberry Pi

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