SCLS087F December 1982 – June 2021 SN54HC21 , SN74HC21
PRODUCTION DATA
请参考 PDF 数据表获取器件具体的封装图。
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| VCC | Supply voltage | 2 | 5 | 6 | V | |
| VIH | High-level input voltage | VCC = 2 V | 1.5 | V | ||
| VCC = 4.5 V | 3.15 | |||||
| VCC = 6 V | 4.2 | |||||
| VIL | Low-level input voltage | VCC = 2 V | 0.5 | V | ||
| VCC = 4.5 V | 1.35 | |||||
| VCC = 6 V | 1.8 | |||||
| VI | Input voltage | 0 | VCC | V | ||
| VO | Output voltage | 0 | VCC | V | ||
| tt | Input transition rise and fall time | VCC = 2 V | 1000 | ns | ||
| VCC = 4.5 V | 500 | |||||
| VCC = 6 V | 400 | |||||
| TA | Operating free-air temperature | SN54HC21 | –55 | 125 | °C | |
| SN74HC21 | –40 | 85 | ||||