參數(shù)資料
型號(hào): 74HC40102
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: 8-bit synchronous BCD down counter
中文描述: 8位同步BCD碼遞減計(jì)數(shù)器
文件頁(yè)數(shù): 3/11頁(yè)
文件大?。?/td> 85K
代理商: 74HC40102
December 1990
3
Philips Semiconductors
Product specification
8-bit synchronous BCD down counter
74HC/HCT40102
2.
For HC the condition is V
I
= GND to V
CC
For HCT the condition is V
I
= GND to V
CC
1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”
.
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1
2
3
4, 5, 6, 7, 10, 11, 12, 13
8
9
14
15
16
CP
MR
TE
P
0
to P
7
GND
PL
TC
PE
V
CC
clock input (LOW-to-HIGH, edge-triggered)
asynchronous master reset input (active LOW)
terminal enable input
jam inputs
ground (0 V)
asynchronous preset enable input (active LOW)
terminal count output (active LOW)
synchronous preset enable input (active LOW)
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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