参数资料
型号: 93459DMQB
厂商: FAIRCHILD SEMICONDUCTOR CORP
元件分类: PLD
英文描述: OT PLD, CDIP28
封装: CERAMIC, DIP-28
文件页数: 3/4页
文件大小: 346K
代理商: 93459DMQB
December 1990
3
Philips Semiconductors
Product specication
4-bit bidirectional universal shift register
74HC/HCT194
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1
MR
asynchronous master reset input (active LOW)
2DSR
serial data input (shift right)
3, 4, 5, 6
D0 to D3
parallel data inputs
7DSL
serial data input (shift left)
8
GND
ground (0 V)
9, 10
S0, S1
mode control inputs
11
CP
clock input (LOW-to-HIGH edge-triggered)
15, 14, 13, 12
Q0 to Q3
parallel outputs
16
VCC
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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