MC74HC597A Datasheet, PDF (9/12 Pages) ON Semiconductor – 8-Bit Serial or Parallel- Input/Serial-Output Shift Register

SERIAL DATA 14
INPUT, S_A
SHIFT CLOCK ¹¹
RESET ¹⁰
SERIAL SHIFT/ 13
PARALLEL LOAD
LATCH CLOCK ¹²
A ¹⁵
B1
PARALLEL
DATA
INPUTS
C2
D3
E4
F5
G6
H7
MC74HC597A
EXPANDED LOGIC DIAGRAM
DQ
C
DQ
C
STAGE A
STAGE B
DQ
C
STAGE C*
STAGE D*
STAGE E*
STAGE F*
STAGE G*
STAGE H
*NOTE: Stages C thru G (not shown in detail) are identical to stages A and B above.
Figure 11. Extended Logic Diagram
S
D
CQ
R
DS
CQ
R
DS
CQ
R
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