74HC595 Static Drive 2 Digital Tube Display Module

74HC595 Static Drive 2 Digital Tube Display Module is a compact display module based on the 74HC595 shift register chip, designed to drive two 7-segment LED displays using minimal I/O pins. It is ideal for microcontroller projects requiring numeric output with low pin usage, commonly used with Arduino, STM32, ESP8266, and Raspberry Pi.

Key Features:

• 74HC595 Chip: Serial-in, parallel-out shift register for controlling LEDs with fewer microcontroller pins.
• 2-Digit 7-Segment Display: Red LED segments for displaying numbers (00–99).
• Common Cathode: Designed for use with common cathode 7-segment displays.
• Low Pin Count: Requires only 3 I/O pins (data, clock, latch) to operate.
• Onboard Resistors: Current-limiting resistors pre-mounted for safe operation.

Technical Specifications:

• Operating Voltage: 3.3V to 5V
• Display Type: 2-digit 7-segment red LED
• Drive Method: Static (non-multiplexed)
• Chipset: 74HC595N
• Input Pins: DS (Data), SH_CP (Clock), ST_CP (Latch)
• Dimensions: Approx. 50mm x 20mm

Pinout and Connection:

• VCC: Module power supply (3.3V–5V)
• GND: Ground
• DS: Serial Data Input
• SH_CP: Shift Clock Input
• ST_CP: Storage Clock (Latch) Input

How It Works:

• Microcontroller shifts 8-bit data into the 74HC595 register using DS and SH_CP.
• ST_CP is pulsed to update output to the display segments.
• Each digit is controlled individually with static drive (no flicker).

Datasheet and Documentation:

• 74HC595 Datasheet
• Module Schematic Diagram

Applications:

• Counter Displays: Ideal for simple up/down counters
• Timers: Use in countdown or stopwatch projects
• Sensor Readouts: Show temperature, distance, or analog readings
• Embedded Systems: Numeric output for Arduino or microcontroller systems

Equivalent Modules:

• TM1637 4-Digit Module: Multiplexed LED display with built-in controller
• MAX7219 Module: Advanced display driver for up to 8 digits
• 2-Digit Static Display with ULN2003: Transistor array driven static display

Package Includes:

• 1 x 74HC595 Static Drive 2 Digital Tube Display Module