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7403 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # 7403
Description  4-Bit x 64-word FIFO register; 3-state
PDF  28 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

7403 Datasheet(HTML) 3 Page - NXP Semiconductors

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September 1993
3
Philips Semiconductors
Product specification
4-Bit x 64-word FIFO register; 3-state
74HC/HCT7403
PINNING
SYMBOL
PIN
DESCRIPTION
OE
1
output enable input (active LOW)
DIR
2
data-in-ready output
SI
3
shift-in input (active HIGH)
DO to D3
4, 5,
6, 7
parallel data input
GND
8
ground
MR
9
asynchronous master-reset
input (active LOW)
Q3 to Q0
10, 11,
12, 13
data output
DOR
14
data-out-ready output
SO
15
shift-out input (active LOW)
VCC
16
positive supply voltage
Fig.1 Pin configuration.
handbook, halfpage
DIR
GND
VCC
D0
D 1
D 2
D 3
Q3
Q2
Q1
Q0
OE
7403
MGA672
SI
DOR
SO
MR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Fig.2 Logic symbol.
handbook, halfpage
MGA674
14
2
13
12
11
10
1
3
9
15
4
5
6
7
DIR
D0
D1
D2
D3
Q3
Q2
Q1
Q0
OE
SI
DOR
SO
MR
Fig.3 IEC logic symbol.
handbook, halfpage
MGA676
1 ( /C2)
CT = 0
5
<
CT
64
>
CT 0
CTR
5Z6
1Z2
EN4
G1
G5
[IR] 3
[OR] 6
FIFO 64 x 4
2D
4
14
2
13
12
11
1
3
9
15
4
5
6
7
10



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