參數(shù)資料
型號(hào): 74HCT193
廠商: NXP Semiconductors N.V.
元件分類(lèi): 通用總線功能
英文描述: Presettable synchronous 4-bit binary up/down counter
中文描述: 可預(yù)置同步4位二進(jìn)制加/減計(jì)數(shù)器
文件頁(yè)數(shù): 4/13頁(yè)
文件大小: 95K
代理商: 74HCT193
December 1990
4
Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
up/down counter
74HC/HCT193
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.
相關(guān)PDF資料
PDF描述
74HC193 Presettable synchronous 4-bit binary up/down counter
74HCT194 4-bit bidirectional universal shift register
74HC194 4-bit bidirectional universal shift register
74HCT195 4-bit parallel access shift register
74HC195 4-bit parallel access shift register
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