74HC7245 查看數據表（PDF） - Philips Electronics
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74HC7245 Datasheet PDF : 7 Pages
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Philips Semiconductors
Octal bus Schmitt-trigger transceiver;
3-state
PIN DESCRIPTION
PIN NO.
1
2, 3, 4, 5, 6, 7, 8, 9
10
18, 17, 16, 15, 14, 13, 12, 11
19
20
SYMBOL
DIR
A0 to A7
GND
B0 to B7
OE
VCC
Product specification
74HC/HCT7245
NAME AND FUNCTION
direction control
data inputs/outputs
ground (0 V)
data inputs/outputs
output enable input (active LOW)
positive supply voltage
alfpage
DIR 1
A0 2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
GND 10
20 VCC
19 OE
7245
18 B0
17 B1
16 B2
15 B3
14 B4
13 B5
12 B6
11 B7
MBA327
ge
19
OE
1 DIR
2 A0
9 A7
age
B0 18
B7 11
MBA330
19
G3
3EN1
1
3EN2
1
2
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
MBA404
Fig.1 Pin configuration.
Fig.2 Functional diagram.
Fig.3 IEC logic symbol.
December 1990
3
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