74HC164 8-Bit Serial-In / Parallel-Out Shift Register
High-speed CMOS 8-bit serial-in parallel-out shift register with two AND-gated serial inputs and asynchronous master reset. No output latch (unlike 74HC595).
Aliase:SN74HC164, 74HCT164, MC74HC164, 8-Bit SIPO
DIP-14 Top View
14 Pins
Pinout Table14
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | DSA | Digital | Serial Data Input A (AND-gated with DSB) |
| 2 | DSB | Digital | Serial Data Input B (AND-gated with DSA) |
| 3 | Q0 | Digital | Parallel Output Bit 0 |
| 4 | Q1 | Digital | Parallel Output Bit 1 |
| 5 | Q2 | Digital | Parallel Output Bit 2 |
| 6 | Q3 | Digital | Parallel Output Bit 3 |
| 7 | GND | Ground | Ground |
| 8 | CP | Digital | Clock Pulse (rising edge triggers shift) |
| 9 | MR | Digital | Master Reset (Active LOW, clears all outputs) |
| 10 | Q4 | Digital | Parallel Output Bit 4 |
| 11 | Q5 | Digital | Parallel Output Bit 5 |
| 12 | Q6 | Digital | Parallel Output Bit 6 |
| 13 | Q7 | Digital | Parallel Output Bit 7 (also serial cascade output) |
| 14 | VCC | Power | Positive Supply (2V - 6V) |