74AHCT259 データシートの表示（PDF） - Philips Electronics
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74AHCT259 Datasheet PDF : 20 Pages
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Philips Semiconductors
8-bit addressable latch
PINNING
PIN
1, 2 and 3
4, 5, 6, 7, 9, 10, 11 and 12
8
13
14
15
16
SYMBOL
A0, A1 and A2
Q0 to Q7
GND
D
LE
MR
VCC
Product specification
74AHC259;
74AHCT259
DESCRIPTION
address input
latch outputs
ground (0 V)
data input
latch enable input (active LOW)
conditional reset input (active LOW)
DC supply voltage
handbook, halfpage
A0 1
A1 2
A2 3
Q0 4
Q1 5
Q2 6
Q3 7
GND 8
16 VCC
15 MR
14 LE
13 D
259
12 Q7
11 Q6
10 Q5
9 Q4
MNA574
Fig.1 Pin configuration.
handbook, halfpage
14
LE
Q0 4
13 D
Q1 5
Q2 6
Q3 7
1 A0
9
Q4
2
A1
10
Q5
3
A2
11
Q6
12
Q7
MR
15 MNA573
Fig.2 Logic symbol.
2000 Mar 14
5
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