ZHCSX11B November 1998 – August 2024 CD54AC257 , CD54ACT257 , CD74AC257 , CD74ACT257 , CD74ACT258
PRODUCTION DATA
5 Parameter Measurement Information
Figure 5-1 Three-State Propagation Delay Times and Test Circuit
Figure 5-2 inputs or select to output propagation delays (ac/act257)
Figure 5-3 Select to Output Propagation Delays (CD74ACT258)
Figure 5-4 For AC Series Only: When VCC = 1.5V, RL = 1kW.
| TEST | S1 |
|---|---|
| tPLH/tPHL | Open |
| tPLZ/tPZL | 2 × VCC |
| tPHZ/tPZH | GND |