参数资料
型号: MC14526BFL1
厂商: ON SEMICONDUCTOR
元件分类: 计数器
英文描述: 4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT DOWN BINARY COUNTER, PDSO16
封装: EIAJ, PLASTIC, SOIC-16
文件页数: 7/14页
文件大小: 242K
代理商: MC14526BFL1
MC14526B
http://onsemi.com
2
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
“0”
CF
P2
Q2
VDD
Q1
RESET
P1
INHIBIT
PE
P3
Q3
VSS
CLOCK
P0
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Output
Clock
Reset
Inhibit
Preset
Enable
Cascade
Feedback
“0”
Resulting
Function
X
H
X
L
Asynchronous reset*
X
H
X
H
X
L
H
y
Asynchronous reset
Ah
X
H
X
H
Asynchronous reset
X
L
X
H
X
L
Asynchronous preset
L
H
L
X
L
Decrement inhibited
L
X
L
Decrement inhibited
L
No change** (inactive edge)
H
L
g(
g )
No change** (inactive edge)
D**
H
L
Decrement**
H
L
Decrement**
X = Don’t Care
NOTES:
** Output “0” is low when reset goes high only it PE and CF are low.
** Output “0” is high when reset is low, only if CF is high and count is 0000.
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