74LV595 Philips, 74LV595 Datasheet - Page 3
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74LV595
Manufacturer Part Number
74LV595
Description
8-bit serial-in/serial or parallel-out shift register with output latches 3-State
Manufacturer
Philips
Datasheet
1.74LV595.pdf
(16 pages)
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H = HIGH voltage level
L = LOW voltage level
X = Don’t care
Z = High impedance OFF-state
NC= No change
° = LOW-to-HIGH clock transition
Philips Semiconductors
PIN DESCRIPTION
FUNCTION TABLE
1998 Apr 20
SH
15, 1, 2, 3,
8-bit serial-in/serial or parallel-out shift register
with output latches (3-State)
NUMBER
4, 5, 6, 7
= HIGH-to-LOW transition
X
X
X
X
°
°
CP
PIN
10
12
13
14
16
11
8
9
ST
X
X
X
°
°
°
CP
SYMBOL
Q
SH
ST
INPUTS
0
GND
V
MR
Q
OE
D
to Q
CC
OE
7’
CP
CP
S
H
L
L
L
L
L
7
Parallel data output
Ground (0V)
Serial data output
Master reset (active LOW)
Shift register clock input
Storage register clock input
Output enable input (active LOW)
Serial data input
Positive supply voltage
MR
H
H
H
L
L
L
D
X
X
X
H
X
X
S
FUNCTION
Q
Q
NC
Q
L
L
L
7’
6’
6’
OUTPUTS
NC
NC
Q
Q
Qn
Z
L
n’
n’
3
A LOW level on MR only affects the shift registers
Empty shift register loaded into storage register
Shift register clear. Parallel outputs in high-impedance OFF-states
Logic high level shifted into shift register stage 0. Contents of all shift
register stages shifted through, e.g. previous state of stage 6 (internal
Q
Contents of shift register stages (internal Qn’) are transferred to the
storage register and parallel output stages
Contents of shift register shifted through. Previous contents of the shift
register are transferred to the storage register and the parallel output
stages
6’
) appears on the serial output (Q
PIN CONFIGURATION
GND
Q
Q
Q
Q
Q
Q
Q
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
FUNCTION
FUNCTION
7’
)
SV00720
16
15
14
13
12
10
11
9
V
Q
D
OE
ST
SH
MR
Q
CC
S
0
7’
CP
CP
Product specification
74LV595