74HC74 Dual D-Type Positive-Edge-Triggered Flip-Flop
Dual positive-edge-triggered D-type flip-flop with asynchronous individual set (~PRE) and clear (~CLR) inputs and complementary Q and ~Q outputs.
Aliase:SN74HC74N, 7474, 74HCT74, Dual D Flip Flop
DIP-14 / SOIC-14 Top View
14 Pins
Pinout Table14
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | ~1CLR | Digital | Flip-Flop 1 Clear (Active Low Asynchronous Reset) |
| 2 | 1D | Digital | Flip-Flop 1 Data Input |
| 3 | 1CLK | Digital | Flip-Flop 1 Clock Input (Rising-edge triggered) |
| 4 | ~1PRE | Digital | Flip-Flop 1 Preset (Active Low Asynchronous Set) |
| 5 | 1Q | Digital | Flip-Flop 1 True Output |
| 6 | ~1Q | Digital | Flip-Flop 1 Inverted Output |
| 7 | GND | Ground | Ground (0V) |
| 8 | ~2Q | Digital | Flip-Flop 2 Inverted Output |
| 9 | 2Q | Digital | Flip-Flop 2 True Output |
| 10 | ~2PRE | Digital | Flip-Flop 2 Preset (Active Low Asynchronous Set) |
| 11 | 2CLK | Digital | Flip-Flop 2 Clock Input (Rising-edge triggered) |
| 12 | 2D | Digital | Flip-Flop 2 Data Input |
| 13 | ~2CLR | Digital | Flip-Flop 2 Clear (Active Low Asynchronous Reset) |
| 14 | VCC | Power | Supply Voltage (2.0V to 6.0V DC) |