參數(shù)資料
型號: 74HCT192D
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: Presettable synchronous BCD decade up/down counter
中文描述: HCT SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDSO16
文件頁數(shù): 4/13頁
文件大?。?/td> 99K
代理商: 74HCT192D
December 1990
4
Philips Semiconductors
Product specification
Presettable synchronous BCD decade
up/down counter
74HC/HCT192
PIN DESCRIPTION
Note
1.
LOW-to-HIGH, edge triggered
PIN NO.
SYMBOL
NAME AND FUNCTION
3, 2, 6, 7
4
5
8
11
12
13
14
15, 1, 10, 9
16
Q
0
to Q
3
CP
D
CP
U
GND
PL
TC
U
TC
D
MR
D
0
to D
3
V
CC
flip-flop outputs
count down clock input
(1)
count up clock input
(1)
ground (0 V)
asynchronous parallel load input (active LOW)
terminal count up (carry) output (active LOW)
terminal count down (borrow) output (active LOW)
asynchronous master reset input (active HIGH)
data inputs
positive supply voltage
Fig.1 Pin configuration.
Fig.2 Logic symbol.
Fig.3 IEC logic symbol.
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