74F597 Datasheet, PDF (3/12 Pages) NXP Semiconductors – 8-bit shift register with input storage registers

Philips Semiconductors
8-bit shift register with input storage registers
Product specification
74F597
LOGIC SYMBOL
14 15 1 2 3 4 5 6 7
Ds D0 D1 D2 D3 D4 D5 D6 D7
10
SHRST
11
SHCP
12
STCP
13
SHLD
Qs
V_CC = Pin 16
GND = Pin 8
14
SF01107
IEC/IEEE SYMBOL (IEEE/IEC)
SRG8
10
R
11
C3/ !
13
C2
12
C1
14
3D
15
1D
2D
1
2
3
4
5
6
7
9
SF01108
FUNCTION TABLE
INPUTS
STCP
SHCP
SHLD
SHRST
↑
X
X
X
↑
L
L
H
↑
L
L
H
X
L
L
L
X
X
H
L
X
↑
H
H
↑
H
X
H
H = High voltage level
L = Low voltage level
X = Don’t care
↑ = Low-to-High clock transition
↑ = Not a Low-to-High clock transition
OPERATING MODES
Data loaded to storage registers
Data loaded from inputs to shift register
Data transferred from storage registers to shift registers
Invalid logic, state of shift register indeterminate when signals removed
Shift register cleared
Shift register clocked, Qn=Qn–1, Q0=Ds
Hold
1991 Sep 13
3