SCLS420H June 1998 – January 2025 SN54AHCT123A , SN74AHCT123A
PRODUCTION DATA
| SN54AHCT123A | SN74AHCT123A | UNIT | ||||
|---|---|---|---|---|---|---|
| MIN | MAX | MIN | MAX | |||
| VCC | Supply voltage | 4.5 | 5.5 | 4.5 | 5.5 | V |
| VIH | High-level input voltage | 2 | 2 | V | ||
| VIL | Low-level input voltage | 0.8 | 0.8 | V | ||
| VI | Input voltage | 0 | 5.5 | 0 | 5.5 | V |
| VO | Output voltage | 0 | VCC | 0 | VCC | V |
| IOH | High-level output current | –8 | –8 | mA | ||
| IOL | Low-level output current | 8 | 8 | mA | ||
| Rext | External timing resistance | 1k | 1k | Ω | ||
| ∆t/∆VCC | Power-up ramp rate | 1 | 1 | ms/V | ||
| TA | Operating free-air temperature | –55 | 125 | –40 | 85 | °C |