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| CD54AC257 Datasheet, PDF (7/14 Pages) Intersil Corporation – Quad 2-Input Multiplexer Three-State, Non-Inverting | |||
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CD54/74AC257, CD54/74ACT257, CD74ACT258
tr = 3ns
nI0, nI1, S
tPLH
VS
Y
tf = 3ns
90%
VS 10%
tPHL
INPUT
LEVEL
GND
S
tPLH
Y
INPUT LEVEL
VS
tPHL
VS
FIGURE 2. INPUTS OR SELECT TO OUTPUT PROPAGATION
DELAYS (AC/ACT257)
FIGURE 3. SELECT TO OUTPUT PROPAGATION DELAYS
(CD74ACT258)
OUTPUT
DUT
RL (NOTE)
500â¦
OUTPUT
LOAD
CL
50pF
NOTE: For AC Series Only: When VCC = 1.5V, RL = 1kâ¦.
AC
ACT
Input Level
Input Switching Voltage, VS
Output Switching Voltage, VS
VCC
0.5 VCC
0.5 VCC
3V
1.5V
0.5 VCC
FIGURE 4. PROPAGATION DELAY TIMES
7
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