MC74HC299 Datasheet, PDF (7/8 Pages) Motorola, Inc – 8-Bit Bidirectional Universal Shift Register with Parallel I/O

SA ¹¹
CLOCK ¹²
RESET ⁹
EXPANDED LOGIC DIAGRAM
CLK
CLK
R
SR H
DEMUX O
LD SL
CLK CLK
Q
D FA
Q
R
SR H
DEMUX O
LD SL
CLK CLK
Q
D FB
Q
R
SR
H
A
B
O
C
D
SR H
DEMUX O
LD SL
CLK CLK
Q
D FC
Q
R
SR H
DEMUX O
LD SL
CLK CLK
Q
D FD
Q
R
LD
SL
DETAIL OF DEMULTILPLEXER
SR H
DEMUX O
LD SL
CLK CLK
Q
D FE
Q
R
S1 ¹
A
SR H
CLK CLK
DEMUX O
Q
D FF
Q
B
LD SL
R
S2 ¹⁹
C
SR H
CLK CLK
Q
D
DEMUX O
D FG
Q
LD SL
R
OE1 ²
OE2 ³
SH ¹⁸
SR H
DEMUX O
LD SL
CLK CLK
Q
D FH
Q
R
MC74HC299
8 _QA′
7 _PA/QA
13 _PB/QB
6 _PC/QC
14 _PD/QD
5 _PE/QE
15 _PF/QF
4 _PG/QG
16 _PH/QH
17 _QH′
High–Speed CMOS Logic Data
3–7
DL129 — Rev 6
MOTOROLA