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参数资料
| 型号： | M54HC697C1R |
| 厂商： | 意法半导体 |
| 元件分类： | 计数器 |
| 英文描述： | HC697/699 U/D 4 BIT BINARY COUNTER/REGISTER 3-STATE HC696/698 U/D DECADE COUNTER/REGISTER 3-STATE |
| 中文描述： | HC697/699上/下4位二进制计数器/注册3态HC696/698上/下十进制计数器/寄存器三态 |
| 文件页数： | 12/22页 |
| 文件大小： | 429K |
| 代理商： | M54HC697C1R |
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
1
U/D
Up Down Counter Selector
2
CCK
Counter Clock
3, 4, 5, 6
A to D
Data Inputs
7, 14
EMP/ENT
Enable P and T
8
CCLR
Counter Clear (Active
LOW)
9
RCK
Register Clock
11
R/C
Register Counter Selector
12
G
Enable Input
13
LOAD
Load Counter (Active
LOW)
15, 16, 17,
18
QA to QD
Data Outputs
19
RCO
Load Counter (Active
HIGH)
10
GND
Ground (0V)
20
VCC
Positive Supply Voltage
INPUT AND OUTPUT EQUIVALENT CIRCUIT
IEC LOGIC SYMBOL
HC697
HC698
HC699
HC696
M54/M74HC696/697/698/699
2/22
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