74AHC157 Ver la hoja de datos (PDF) - Philips Electronics
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Lista de partido
74AHC157 Datasheet PDF : 16 Pages
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Philips Semiconductors
Quad 2-input multiplexer
Product specification
74AHC157;
74AHCT157
Type 74AHCT157
GND = 0 V; tr = tf ≤ 3.0 ns.
SYMBOL PARAMETER
TEST CONDITIONS
WAVEFORMS CL
Tamb (°C)
25
−40 to +85 −40 to +125 UNIT
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
VCC = 4.5 to 5.5 V; note 1
tPHL/tPLH
propagation delay see Figs 7 and 8 15 pF −
nI0 to nY; nI1 to nY
propagation delay
−
S to nY
propagation delay see Figs 6 and 8
−
E to nY
propagation delay see Figs 7 and 8 50 pF −
nI0 to nY; nI1 to nY
propagation delay
−
S to nY
propagation delay see Figs 6 and 8
−
E to nY
3.2 6.4 1.0 7.5 1.0 8.0 ns
3.7 8.6 1.0 10.0 1.0 11.0 ns
4.7 8.1 1.0 9.5 1.0 10.5 ns
4.6 8.7 1.0 9.8 1.0 11.0 ns
5.2 10.4 1.0 12.0 1.0 13.0 ns
6.7 10.6 1.0 12.0 1.0 13.5 ns
Note
1. Typical values at VCC = 5.0 V.
AC WAVEFORMS
handbook, halfpageVCC
E INPUT
GND
VOH
nY OUTPUT
VOL
VM(1)
t PHL
VM(1)
t PLH
MNA485
handbook, halfpage VI
nI0, nI1, S
INPUT
GND
VOH
nY OUTPUT
VOL
VM(1)
t PHL
VM(1)
t PLH
MNA486
FAMILY
VI INPUT
REQUIREMENTS
VM(1)
INPUT
VM(1)
OUTPUT
AHC
AHCT
GND to VCC
GND to 3.0 V
50% VCC 50% VCC
1.5 V
50% VCC
Fig.6 The enable input (E) to output (nY)
propagation delays.
FAMILY
VI INPUT
REQUIREMENTS
VM(1)
INPUT
VM(1)
OUTPUT
AHC
AHCT
GND to VCC
GND to 3.0 V
50% VCC 50% VCC
1.5 V
50% VCC
Fig.7 The data inputs (nI0, nI1) and common data
select input (S) to output (nY) propagation
delays.
1999 Sep 24
10
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