74AHCT259PW データシートの表示（PDF） - Philips Electronics
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74AHCT259PW Datasheet PDF : 20 Pages
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Philips Semiconductors
8-bit addressable latch
Product specification
74AHC259;
74AHCT259
AC CHARACTERISTICS
Type 74AHC259
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 11 15 pF −
5.8
D to Qn
propagation delay see Figs 6 and 11
An to Qn
− 7.5
propagation delay see Figs 7 and 11
LE to Qn
− 6.2
tPHL
propagation delay see Figs 8 and 11
MR to Qn
− 5.4
tPHL/tPLH propagation delay see Figs 5 and 11 50 pF −
7.3
D to Qn
propagation delay see Figs 6 and 11
An to Qn
− 9.1
propagation delay see Figs 7 and 11
LE to Qn
− 7.7
tPHL
propagation delay see Figs 8 and 11
MR to Qn
− 7.0
tW
LE pulse width see Figs 7 and 11
5.0 −
HIGH or LOW
MR pulse width
LOW
see Figs 8 and 11
5.0 −
tsu
set-up time
see Figs 9,
D to LE, An to LE 10 and 11
4.0 −
th
hold time D to LE, see Figs 9 and 11
1.0 −
An to LE
11.5 1.0 13.5 1.0
14.5 1.0 17.0 1.0
12.0 1.0 14.0 1.0
10.5 1.0 12.5 1.0
14.5 1.0 17.0 1.0
18.0 1.0 21.0 1.0
15.5 1.0 17.5 1.0
13.5 1.0 15.5 1.0
−
5.0 −
5.0
−
5.0 −
5.0
−
4.0 −
4.0
−
1.0 −
1.0
15.0 ns
18.5 ns
15.2 ns
13.5 ns
18.5 ns
23.0 ns
19.0 ns
17.0 ns
−
ns
−
ns
−
ns
−
ns
2000 Mar 14
10
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