M54HC597D1 STMICROELECTRONICS [STMicroelectronics], M54HC597D1 Datasheet - Page 2

• Manufacturer Part Number: M54HC597D1
• Description: RAD-HARD 8 BIT LATCH/SHIFT REGISTER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M54HC597
Figure 1: IEC Logic Symbols
Figure 2: Input And Output Equivalent Circuit
Table 2: Truth Table
X : Don’t Care
2/14
SI
H
X
X
X
X
X
L
SCK
X
X
X
X
INPUTS
SCLR
H
H
H
H
X
X
L
SLOAD
H
H
H
H
X
X
L
RCK
X
X
X
X
X
STORE THE DATA OF PREVIOUS STAGE, RESPECTIVELY
STORE THE DATA OF PREVIOUS STAGE, RESPECTIVELY
INPUT DATA ON A ~ H LINE IS STORED INTO INPUT REG-
FIRST STAGE OF S.R. BECOMES "H" OTHER STAGES
FIRST STAGE OF S.R. BECOMES "L" OTHER STAGES
STORAGE REGISTER STATE IS NOT CHANGED
Table 1: Pin Description
INPUT REGISTER DATA IS STORED INTO S.R.
15, 1, 2, 3, 4,
PIN N°
5, 6, 7
10
12
13
10
16
11
9
8
STATE OF S.R. IS NOT CHANGED
S.R. IS CLEARED TO "L"
SYMBOL
SLOAD
SCLR
A to H
GND
RCK
SCK
V
QH’
OUTPUT
SI
CC
ISTER
Serial Data Outputs
Asynchronous Reset
Input (Active LOW)
Shift Clock Input (LOW to
HIGH Edge-triggered)
Storage Clock Input (LOW
to HIGH Edge-triggered)
Parallel Data Input (Active
Low)
Serial Data Input
Parallel Data Inputs
Ground (0V)
Positive Supply Voltage
NAME AND FUNCTION