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The SN54S74 family provides dual D‑type positive‑edge‑triggered flip‑flops with independent preset and clear inputs. The device operates over a wide temperature range and is offered in several plastic and ceramic packages.
The document lists recommended operating conditions, electrical characteristics, mechanical dimensions, and packaging options, along with TI's standard warranty and usage notices.
| High‑level input voltage (VIH) | 2 V |
|---|---|
| High‑level output current (IOH) | -0.4 mA |
| Low‑level output current (IOL) | 16 mA |
| Maximum operating frequency | ≈25 MHz |
The flip‑flop can operate up to about 25 MHz.