ZHCSPU5G December 1982 – October 2022 SN54HCT74 , SN74HCT74
PRODUCTION DATA
請參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
| VCC | TA = 25°C | SN54HCT74(1) | SN74HCT74 | UNIT | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | MAX | MIN | MAX | MIN | MAX | |||||
| fclock | Clock frequency | 4.5 V | 27 | 18 | 22 | MHz | ||||
| 5.5 V | 30 | 20 | 24 | |||||||
| tw | Pulse duration | PRE or CLR low | 4.5 V | 16 | 24 | 20 | ns | |||
| 5.5 V | 14 | 21 | 18 | |||||||
| CLK high or low | 4.5 V | 18 | 27 | 23 | ||||||
| 5.5 V | 16 | 24 | 21 | |||||||
| tsu | Setup time before CLK-↑ | Data | 4.5 V | 12 | 18 | 15 | ns | |||
| 5.5 V | 11 | 16 | 14 | |||||||
| PRE or CLR inactive | 4.5 V | 0 | 0 | 0 | ||||||
| 5.5 V | 0 | 0 | 0 | |||||||
| th | Hold time, data after CLK-↑ | 4.5 V | 0 | 0 | 0 | ns | ||||
| 5.5 V | 0 | 0 | 0 | |||||||