Datasheet

3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
B1
B2
B3
B4
B5
A3
A4
A5
A6
A7
A2
A1
DIR
B7
B6
OE
A8
GND
B8
V
CC
SN54HCT245 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE
B1
B2
B3
B4
B5
B6
B7
B8
SN54HCT245
. . . J OR W PACKAGE
SN74HCT245 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
3
SN54HCT245 , SN74HCT245
www.ti.com SCLS020F –MARCH 1984–REVISED AUGUST 2016
Product Folder Links: SN54HCT245 SN74HCT245
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5 Pin Configuration and Functions
Pin Functions
PIN
I/O DESCRIPTION
NO. NAME
1 DIR I Direction select. High = A to B, Low = B to A
2 A1 I/O Channel 1 port A
3 A2 I/O Channel 2 port A
4 A3 I/O Channel 3 port A
5 A4 I/O Channel 4 port A
6 A5 I/O Channel 5 port A
7 A6 I/O Channel 6 port A
8 A7 I/O Channel 7 port A
9 A8 I/O Channel 8 port A
10 GND — Ground
11 B8 O/I Channel 1 port B
12 B7 O/I Channel 2 port B
13 B6 O/I Channel 3 port B
14 B5 O/I Channel 4 port B
15 B4 O/I Channel 5 port B
16 B3 O/I Channel 6 port B
17 B2 O/I Channel 7 port B
18 B1 O/I Channel 8 port B
19 OE I Output enable, active low. High = all ports in high impedance mode, Low = all ports active
20 V
CC
— Power supply