74hct7403 NXP Semiconductors, 74hct7403 Datasheet - Page 3

• Manufacturer Part Number: 74hct7403
• Description: 4-bit X 64-word Fifo Register; 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
September 1993
handbook, halfpage
OE
DIR
SI
D
GND
MR
Q
DOR
SO
V
SYMBOL
CC
4-Bit x 64-word FIFO register; 3-state
O
3
to Q
to D
0
3
1
2
3
4, 5,
6, 7
8
9
10, 11,
12, 13
14
15
16
PIN
15
4
5
6
7
3
Fig.2 Logic symbol.
output enable input (active LOW)
data-in-ready output
shift-in input (active HIGH)
parallel data input
ground
asynchronous master-reset
input (active LOW)
data output
data-out-ready output
shift-out input (active LOW)
positive supply voltage
D 0
D 1
D 2
D 3
SI
SO
MR
OE
1
9
DOR
DIR
Q 0
Q 1
Q 2
Q 3
DESCRIPTION
MGA674
13
12
11
10
14
2
3
handbook, halfpage
handbook, halfpage
15
1
3
9
4
5
6
7
GND
DIR
OE
D 0
D 1
D 2
D 3
Fig.1 Pin configuration.
Fig.3 IEC logic symbol.
SI
5Z6
EN4
1Z2
CT = 0
2D
1 ( /C2)
5
1
2
3
4
5
6
7
8
FIFO 64 x 4
CTR
7403
CT 64
CT 0
MGA672
74HC/HCT7403
[OR] 6
MGA676
[IR] 3
16
15
14
13
12
11
10
9
Product specification
G1
G5
4
SO
DOR
MR
V CC
Q 0
Q 1
Q 2
Q 3
14
13
12
11
10
2