Texas Instruments
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Dual D-type flip-flop with set and reset. Frequency division, edge capture, state storage.
| Part number | 74HC74 |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Integrated Circuits › Flip-Flops & Latches |
| Package | DIP-14 |
| Pins | 14 |
74HC74 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | 1CLR | input | Flip-flop 1 clear, active low |
| 2 | 1D | input | Flip-flop 1 data |
| 3 | 1CLK | clock | Flip-flop 1 clock |
| 4 | 1PRE | input | Flip-flop 1 preset, active low |
| 5 | 1Q | output | Flip-flop 1 output |
| 6 | 1Q | output | Flip-flop 1 inverted output |
| 7 | GND | ground | Ground |
| 8 | 2Q | output | Flip-flop 2 inverted output |
| 9 | 2Q | output | Flip-flop 2 output |
| 10 | 2PRE | input | Flip-flop 2 preset |
| 11 | 2CLK | clock | Flip-flop 2 clock |
| 12 | 2D | input | Flip-flop 2 data |
| 13 | 2CLR | input | Flip-flop 2 clear |
| 14 | VCC | power | Supply |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-14 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.