74HC194 データシートの表示（PDF） - Philips Electronics
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74HC194 Datasheet PDF : 11 Pages
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Philips Semiconductors
4-bit bidirectional universal shift register
ORDERING INFORMATION
See “74HC/HCT/HCU/HCMOS Logic Package Information”.
PIN DESCRIPTION
PIN NO.
1
2
3, 4, 5, 6
7
8
9, 10
11
15, 14, 13, 12
16
SYMBOL
MR
DSR
D0 to D3
DSL
GND
S0, S1
CP
Q0 to Q3
VCC
NAME AND FUNCTION
asynchronous master reset input (active LOW)
serial data input (shift right)
parallel data inputs
serial data input (shift left)
ground (0 V)
mode control inputs
clock input (LOW-to-HIGH edge-triggered)
parallel outputs
positive supply voltage
Product specification
74HC/HCT194
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
December 1990
3
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