74HCT299DB View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
74HCT299DB Datasheet PDF : 11 Pages
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Philips Semiconductors
8-bit universal shift register; 3-state
Product speciļ¬cation
74HC/HCT299
PIN DESCRIPTION
PIN NO.
1, 19
2, 3
7, 13, 6, 14, 5, 15, 4, 16
8, 17
9
10
11
12
18
20
SYMBOL
S0, S1
OE1, OE2
I/O0 to I/O7
Q0, Q7
MR
GND
DSR
CP
DSL
VCC
NAME AND FUNCTION
mode select inputs
3-state output enable inputs (active LOW)
parallel data inputs or 3-state parallel outputs (bus driver)
serial outputs (standard output)
asynchronous master reset input (active LOW)
ground (0 V)
serial data shift-right input
clock input (LOW-to-HIGH, edge-triggered)
serial data shift-left input
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
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