74HC299 Philips, 74HC299 Datasheet - Page 4
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74HC299
Manufacturer Part Number
74HC299
Description
8-bit universal shift register 3-state
Manufacturer
Philips
Datasheet
1.74HC299.pdf
(11 pages)
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Philips Semiconductors
MODE SELECT TABLE
Notes
1. H = HIGH voltage level
December 1990
MR
L
H
H
H
H
8-bit universal shift register; 3-state
L = LOW voltage level
X = don’t care
= LOW-to-HIGH CP transition
S
X
H
L
H
L
1
INPUTS
S
X
H
H
L
L
0
CP
X
X
asynchronous reset; Q
parallel load; I/O
shift right; D
shift left; D
hold
Fig.4 Functional diagram.
SL
SR
Q
n
4
Q
7
, Q
0
, Q
Q
7
n
0
0
Q
Q
7
6
= LOW
Q
etc.
1
etc.
RESPONSE
74HC/HCT299
Product specification