MC74HC597ADG ON Semiconductor, MC74HC597ADG Datasheet - Page 7

• Manufacturer Part Number: MC74HC597ADG
• Description: IC SHIFT REGISTER 8BIT 16SOIC
• Manufacturer: ON Semiconductor

Specifications of MC74HC597ADG

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LR = latch register contents
SR = shift register contents
* = depends on latch clock input
Reset shift register
Reset shift register; load
parallel data into data latch
Load parallel data into data
latch
Transfer latch contents to
shift register
Contents of data latch and
shift register are
unchanged
Load parallel data into data
latch and shift register
Shift serial data into shift
register
Load parallel data into data
latch and shift serial data
into shift register
Operation
Reset
H
H
H
H
H
H
L
L
Parallel Load
Serial Shift/
X
X
H
H
H
H
L
L
a−h = data at parallel data inputs A−H
D = data (L, H) at serial data input S
L, H,
L, H,
L, H,
Latch
Clock
Inputs
X
FUNCTION TABLE
http://onsemi.com
L,H,
L,H,
Clock
Shift
X
X
X
X
7
Serial
Input
S
X
X
X
X
X
X
D
D
A
Parallel
Inputs
A−H
a−h
a−h
a−h
a−h
X
X
X
X
A
Contents
Latch
a−h
a−h
a−h
a−h
U
U
U
*
U = remains unchanged
X = don’t care
Resulting Function
SR
SR
LR
Contents
Register
SR
SR
N
N
N
Shift
→ SR
→ SR
a−h
A
A
→ SR
U
U
L
L
= D;
= D;
N + 1
N + 1
N
SR
SR
Output
G
G
LR
Q
→ SR
→ SR
U
U
L
L
h
H
H
H
H