Description
The 74HCT164D,653 is a high-speed, silicon-gate CMOS 8-bit serial-in, parallel-out shift register. It features two serial data inputs (DSA and DSB) and an asynchronous Master Reset (MR). Data is entered serially on the positive-going transition of the clock (CP) pulse and is simultaneously available at the eight parallel outputs, making it highly effective for converting serial data streams into parallel data for microcontrollers, LED drivers, or display controllers.
As part of the HCT series, this device is engineered with TTL-compatible input levels, allowing it to interface directly with 5V TTL logic systems while maintaining the low power consumption and high noise immunity characteristic of the CMOS logic family. The SOIC-14 surface-mount package is optimized for space-efficient PCB designs and reliable automated assembly.
Note: Product images are provided for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability. Please refer to the datasheet available in the Attachment section for complete electrical specifications, timing diagrams, and pin configuration.
Features
- 8-bit serial-in, parallel-out data shifting
- Positive-edge triggered clock input
- Asynchronous Master Reset (MR) input
- TTL-compatible input threshold levels
- High-speed CMOS (HCT) technology
- Wide operating voltage range (4.5V to 5.5V)
- Compact SOIC-14 SMD package
Benefits
- Seamless integration with mixed-logic (TTL/CMOS) systems
- High noise immunity provides stability in digital circuits
- Surface-mount footprint saves valuable board space
- Direct serial-to-parallel conversion minimizes microcontroller I/O pin usage
Applications
- Serial-to-Parallel Data Conversion
- LED Array and Display Drivers
- Shift Registers for Logic Expansion
- Microcontroller I/O Port Expansion
- Digital Signal Routing
- Embedded System Interfacing
Package Includes
- 1 x 74HCT164D,653 8-Bit Serial-in Parallel-out Shift Register IC (SOIC-14 SMD)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | 74HCT164D,653 |
| Device Type | 8-Bit Serial-in, Parallel-out Shift Register |
| Logic Family | 74HCT (TTL-Compatible CMOS) |
| Package / Case | SOIC-14 (SMD) |
| Mounting Type | Surface Mount (SMD/SMT) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 x 4 x 1 cm |







