SCAS521H August 1995 – June 2025 SN54AC74 , SN54AC74-SP , SN74AC74
PRODUCTION DATA
The ’AC74 devices are dual positive-edge-triggered D-type flip-flops.
| PART NUMBER | PACKAGE(1) | PACKAGE SIZE (2) | BODY SIZE(3) |
|---|---|---|---|
| SNx4AC74 | PW (TSSOP, 14) | 5mm × 6.4mm | 5mm × 4.40mm |
| D (SOIC, 14) | 8.65mm × 6mm | 8.65mm × 3.9mm | |
| DB (SSOP, 14) | 6.2mm × 7.8mm | 6.2mm × 5.3mm | |
| N (PDIP, 14) | 19.3mm × 9.4mm | 19.3mm × 6.35mm | |
| NS (SOP, 14) | 10.2mm × 7.8mm | 10.3mm × 5.3mm | |
| BQA (WQFN, 14) | 3mm × 2.5mm | 3mm × 2.5mm |
Logic
Diagram, Each Flip-flop (Positive Logic)