74HC164 is an 8-bit serial-in / parallel-out (SIPO) shift register IC from the high-speed CMOS (HC) family. This product is made by STMicroelectronics (ST), which offers it as M74HC164, in a DIP-14 package under order code M74HC164B1R. It shifts serial data on each clock pulse to 8 parallel outputs and is widely used to expand microcontroller outputs and to drive LEDs and displays. It is pin and function compatible with the standard 74HC164.
Key features
- 8-bit serial input, parallel output
- Two AND-gated serial data inputs (A, B)
- Asynchronous active-low clear (CLEAR) input
- Wide 2–6 V supply range
- High speed: typ. 62 MHz (6 V)
- DIP-14 through-hole package
Technical specifications
| Manufacturer | STMicroelectronics (ST) |
|---|---|
| ST part name | M74HC164 (DIP: M74HC164B1R) |
| Function | 8-bit SIPO shift register |
| Logic family | 74HC (high-speed CMOS) |
| Supply voltage | 2–6 V |
| Output current | ±4 mA (min., 4.5 V) |
| Max. clock frequency | Typ. 62 MHz (6 V) |
| Operating temperature | -55 … +125 °C |
| Inputs | A, B (serial data), CLOCK, CLEAR |
| Outputs | QA–QH |
| Package | DIP-14 |
Applications
- Microcontroller output expansion
- LED and 7-segment display driving
- Serial-to-parallel data conversion
- Control panel and display boards
For detailed technical information: Manufacturer datasheet (STMicroelectronics)
Fark Tedarik supplies the ST 74HC164 (M74HC164) with an invoice in your company’s name. For bulk or project quantities, please request a quote.




