參數(shù)資料
型號(hào): MC14516BDR2
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Binary Up/Down Counter
中文描述: 4000/14000/40000 SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
封裝: SOIC-16
文件頁(yè)數(shù): 2/12頁(yè)
文件大?。?/td> 221K
代理商: MC14516BDR2
MC14516B
http://onsemi.com
2
PIN ASSIGNMENT
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
P1
P2
Q2
C
V
DD
R
U/D
Q1
P0
P3
Q3
PE
V
SS
CARRY OUT
Q0
CARRY IN
BLOCK DIAGRAM
V
DD
= PIN 16
V
SS
= PIN 8
6
11
14
2
7
Q0
Q1
Q2
Q3
CARRY
OUT
PE
CARRY IN
RESET
UP/DOWN
CLOCK
P0
P1
P2
P3
1
5
9
10
15
4
12
13
3
TRUTH TABLE
Carry In
1
0
0
X
X
X = Don’t Care
NOTE: When counting up, the Carry Out signal is normally high and is low only
when Q0 through Q3 are high and Carry In is low. When counting down,
Carry Out is low only when Q0 through Q3 and Carry In are low.
Up/Down
X
1
0
X
X
Preset
Enable
Reset
0
0
0
0
1
Clock
X
Action
No Count
Count Up
Count Down
Preset
Reset
0
0
0
1
X
X
X
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