| part number | 74HC/HCT109 |
| manufacturer | PHILIPS |
| lead free | ??? |
| prefix | U |
| Description | 74HC/HCT109 |
| octopart part number | |
| package | |
| RoHS | ??? |
| pin 2 description | synchronous input |
| pin 13 description | synchronous input |
| pin 1 activelow | true |
| pin 4 description | clock input (low-to-high, edge-triggered) |
| pin 7 description | complement output |
| pin 8 description | ground |
| pin 6 description | true output |
| pin 16 description | supply voltage |
| pin 9 activelow | true |
| Propagation delay, nCP to nQ, nQ | 15 (74HC) 17 (74HCT) ns |
| pin 3 description | synchronous input |
| pin 5 description | asynchronous set; direct input (active low) |
| pin 15 activelow | true |
| Maximum clock frequency | 75 (74HC) 61 (74HCT) MHz |
| pin 11 activelow | true |
| pin 13 activelow | true |
| pin 14 description | synchronous input |
| Propagation delay, nRD to nQ, nQ | 12 (74HC) 15 (74HCT) ns |
| pin 15 description | asynchronous reset; direct input (active low) |
| pin 3 activelow | true |
| pin 7 activelow | true |
| Propagation delay, nSD to nQ, nQ | 12 (74HC) 14 (74HCT) ns |
| pin 10 description | true output |
| pin 12 description | clock input (low-to-high, active low) |
| pin 5 activelow | true |
| pin 9 description | complement output |
| pin 11 description | asynchronous set; direct input (active low) |
| pin 1 description | asynchronous reset; direct input (active low) |
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