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參數資料
| 型號： | 933670000652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 計數器 |
| 英文描述： | HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDIP16 |
| 封裝： | SOT-38-1, DIP-16 |
| 文件頁數： | 6/12頁 |
| 文件大?。?/td> | 80K |
| 代理商： | 933670000652 |
December 1990
3
Philips Semiconductors
Product specication
Presettable synchronous 4-bit binary
counter; asynchronous reset
74HC/HCT161
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
PIN DESCRIPTION
PIN NO.
SYMBOL
NAME AND FUNCTION
1
MR
asynchronous master reset (active LOW)
2
CP
clock input (LOW-to-HIGH, edge-triggered)
3, 4, 5, 6
D0 to D3
data inputs
7
CEP
count enable input
8
GND
ground (0 V)
9
PE
parallel enable input (active LOW)
10
CET
count enable carry input
14, 13, 12, 11
Q0 to Q3
ip-op outputs
15
TC
terminal count output
16
VCC
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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