74F647 Datasheet, PDF (3/12 Pages) NXP Semiconductors – Octal transceiver/register, non-inverting open-collector

Philips Semiconductors
Octal transceivers/registers (open-collector)
Product specification
74F647/74F649
LOGIC SYMBOL – 74F647
4 5 6 7 8 9 10 11
A0 A1 A2 A3 A4 A5 A6 A7
1
CPAB
2
SAB
3
DIR
23
CPBA
22
SBA
21
OE
B0 B1 B2 B3 B4 B5 B6 B7
V_CC=Pin 24
GND=Pin 12
20 19 18 17 16 15 14 13
SF01197
LOGIC SYMBOL – 74F647
21
G3
3
3EN1(BA)
3EN2(AB)
23
C4
22
G5
1
C6
2
G7
4
≥1
1
5
4D
20
51
6D 7
≥1
17
2
19
5
6
18
7
17
8
16
9
15
10
14
11
13
SF01199
REAL TIME BUS TRANSFER
BUS B TO BUS A
REAL TIME BUS TRANSFER
BUS A TO BUS B
LOGIC SYMBOL – 74F649
4 5 6 7 8 9 10 11
1
2
3
23
22
21
V_CC=Pin 24
GND=Pin 12
A0 A1 A2 A3 A4 A5 A6 A7
CPAB
SAB
DIR
CPBA
SBA
OE
B0 B1 B2 B3 B4 B5 B6 B7
20 19 18 17 16 15 14 13
SF01198
LOGIC SYMBOL – 74F648
21
G3
3
3EN1(BA)
3EN2(AB)
23
C4
22
G5
1
C6
2
G7
4
≥1
1
5
4D
20
51
6D 7
≥1
17
2
19
5
18
6
17
7
16
8
15
9
10
14
13
11
SF01200
STORAGE FROM
A, B, OR A AND B
TRANSFER STORED DATA
TO A OR B
BUS A
BUS B
BUS A
BUS B
BUS A
BUS B
BUS A
BUS B
OE DIR CPAB CPBA SAB SBA
LL X
X
X
L
OE DIR CPAB CPBA SAB SBA
LH X
X
L
X
OE DIR CPAB CPBA SAB SBA
XX
X
X
X
XX X
X
X
HX
X
X
OE DIR CPAB CPBA SAB SBA
LL
X H or L X
H
L H H or L X
H
X
SF01201
1992 Feb 28
3