74AHCT125 查看數據表（PDF） - Philips Electronics
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74AHCT125 Datasheet PDF : 16 Pages
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Philips Semiconductors
Quad buffer/line driver; 3-state
Product specification
74AHC125; 74AHCT125
AC CHARACTERISTICS
Type 74AHC125
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 = 3.0 to 3.6 V; note 1
tPHL/tPLH propagation delay see Figs 5 and 7 15 pF −
nA to nY
tPZH/tPZL propagation delay see Figs 6 and 7
−
nOE to nY
tPHZ/tPLZ propagation delay
−
nOE to nY
tPHL/tPLH propagation delay see Figs 5 and 7 50 pF −
nA to nY
tPZH/tPZL propagation delay see Figs 6 and 7
−
nOE to nY
tPHZ/tPLZ propagation delay
−
nOE to nY
4.4 8.0 1.0 9.5 1.0 11.5 ns
4.7 8.0 1.0 9.5 1.0 11.5 ns
6.7 9.7 1.0 11.5 1.0 12.5 ns
6.2 11.5 1.0 13.0 1.0 14.5 ns
6.8 11.5 1.0 13.0 1.0 14.5 ns
9.6 13.2 1.0 15.0 1.0 16.5 ns
VCC = 4.5 to 5.5 V; note 2
tPHL/tPLH propagation delay see Figs 5 and 7 15 pF −
nA to nY
tPZH/tPZL propagation delay see Figs 6 and 7
−
nOE to nY
tPHZ/tPLZ propagation delay
−
nOE to nY
tPHL/tPLH propagation delay see Figs 5 and 7 50 pF −
nA to nY
tPZH/tPZL propagation delay see Figs 6 and 7
−
nOE to nY
tPHZ/tPLZ propagation delay
−
nOE to nY
3.0 5.5 1.0 6.5 1.0 7.0 ns
3.3 5.1 1.0 6.0 1.0 6.5 ns
4.8 6.8 1.0 8.0 1.0 8.5 ns
4.3 7.5 1.0 8.5 1.0 9.5 ns
4.7 7.1 1.0 8.0 1.0 9.0 ns
6.8 8.8 1.0 10.0 1.0 11.0 ns
Notes
1. Typical values at VCC = 3.3 V.
2. Typical values at VCC = 5.0 V.
1999 Sep 27
8
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