MN54AC257-X Datasheet, PDF (6/7 Pages) National Semiconductor (TI) – Quad 2 Input Multiplexer With TRI - STATE Outputs

MN54AC257-X REV 1B0
MICROCIRCUIT DATA SHEET
Electrical Characteristics
AC PARAMETERS(Continued)
(The following conditions apply to all the following parameters, unless otherwise specified.)
AC: CL=50pf, RL=500 OHMS, TRISE=3.0ns, TFALL=3.0ns, Temp Range: -55C to 125C. NOTE: -55C TEMPERATURE,
SUBGROUP 11 IS GUARANTEED BUT NOT TESTED.
SYMBOL
tpLH(2)
PARAMETER
Propagation Delay VCC=4.5V
CONDITIONS
tpHL(2)
Propagation Delay VCC=4.5V
tpZH(1)
Output Enable
Time
VCC=4.5V
tpZL(1)
Output Enable
Time
VCC=4.5V
tpHZ(1)
Output Disable
Time
VCC=4.5V
tpLZ(1)
Output Disable
Time
VCC=4.5V
tpLH(3)
Propagation Delay VCC=3.0V
tpHL(3)
Propagation Delay VCC=3.0V
tpLH(4)
Propagation Delay VCC=3.0V
tpHL(4)
Propagation Delay VCC=3.0V
NOTES
PIN-
NAME
3, In to
4, 6 Zn
3, In to
4, 6 Zn
3, In to
4, 6 Zn
3, In to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, OE to
4, 6 Zn
3, 4 Sn to
Zn
3, 4 Sn to
Zn
3, 4 Sn to
Zn
3, 4 Sn to
Zn
3, 4 In to
Zn
3, 4 In to
Zn
3, 4 In to
Zn
3, 4 In to
Zn
MIN
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
MAX
6.5
UNIT
ns
SUB-
GROUPS
9
8.0
ns 10, 11
7.0
ns 9
8.5
ns 10, 11
9.00 ns 9
10.0 ns 10, 11
8.5
ns 9
9.5
ns 10, 11
9.50 ns 9
11.0 ns 10, 11
8.0
ns 9
9.5
ns 10, 11
12.0 ns 9
14.5 ns 10, 11
12.0 ns 9
14.5 ns 10, 11
9.00 ns 9
11.0 ns 10, 11
9.50 ns 9
11.0 ns 10, 11
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