Description
The MC74HC595 is a high-speed, silicon-gate CMOS 8-bit serial-in, parallel-out shift register. It features a storage register with 3-state outputs, making it the industry-standard choice for expanding the number of digital output pins on a microcontroller.
The device operates in two stages:
- Shift Register: Data is clocked in serially via the DS (Data Serial) pin on the rising edge of the SHCP (Shift Register Clock) pin.
- Storage (Latch) Register: Once 8 bits have been shifted in, a pulse on the STCP (Storage Clock) pin transfers the data from the shift register to the storage register, where it appears on the output pins (Q0–Q7).
The 3-state output feature allows you to disable the outputs (set to high-impedance) via the Output Enable (OE-bar) pin, which is particularly useful for bus-sharing applications.
Note: Product images are shown for reference only.
Features
- 8-bit serial-in, parallel-out shift register
- Integrated 8-bit storage register (latch)
- 3-state output capability
- High-speed CMOS (HC) technology
- Wide operating voltage range (2V to 6V)
- Compact SOIC-16 surface-mount package
Benefits
- Expands microcontroller I/O: Controls 8 outputs using only 3 data pins
- Storage register allows data to be held constant while new data is being shifted
- 3-state outputs prevent electrical contention on shared data buses
- High noise immunity and low power consumption
Applications
- Microcontroller Output Expansion (GPIO expansion)
- LED Array Control and Multiplexing
- Driving 7-Segment Displays
- Serial-to-Parallel Data Conversion
- Driving Relays or Solenoids
Package Includes
- 1 x MC74HC595ADR2G 8-Bit Shift Register IC (SOIC-16 SMD)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | MC74HC595ADR2G |
| Device Type | 8-Bit Shift Register (Serial-in, Parallel-out) |
| Logic Family | 74HC (High-Speed CMOS) |
| Package / Case | SOIC-16 (SMD) |
| Mounting Type | Surface Mount (SMD/SMT) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |
