參數(shù)資料
型號: MC74HC390A
廠商: ON SEMICONDUCTOR
元件分類: 通用總線功能
英文描述: Dual 4-Stage Binary Ripple Counter(雙4位二進制紋波計數(shù)器)
中文描述: 雙4位的二進制紋波計數(shù)器(雙4位二進制紋波計數(shù)器)
文件頁數(shù): 2/10頁
文件大?。?/td> 127K
代理商: MC74HC390A
MC74HC390A
http://onsemi.com
2
Q
A
Q
B
Q
C
Q
D
1, 15
4, 12
2, 14
3, 13
5, 11
6, 10
7, 9
PIN 16 = V
CC
PIN 8 = GND
CLOCK A
RESET
CLOCK B
÷
2
COUNTER
÷
5
COUNTER
FUNCTION TABLE
Clock
A
X
B
X
Reset
H
Action
Reset
÷
2 and
÷
5
Increment
÷
2
Increment
÷
5
X
L
X
L
Figure 1. Pin Assignment
13
14
15
16
9
10
11
12
5
4
3
2
1
8
7
6
CLOCK B
b
Q
Ab
RESET b
CLOCK A
b
V
CC
Q
Db
Q
Cb
Q
Bb
CLOCK B
a
Q
Aa
RESET a
CLOCK A
a
GND
Q
Da
Q
Ca
Q
Ba
Figure 2. Logic Diagram
ORDERING INFORMATION
Device
Package
Shipping
MC74HC390AN
PDIP16
500 Units / Rail
MC74HC390ANG
PDIP16
(PbFree)
500 Units / Rail
MC74HC390AD
SOIC16
48 Units / Rail
MC74HC390ADG
SOIC16
(PbFree)
48 Units / Rail
MC74HC390ADR2
SOIC16
2500 Units / Reel
MC74HC390ADR2G
SOIC16
(PbFree)
2500 Units / Reel
MC74HC390ADTR2
TSSOP16*
2500 Units / Reel
MC74HC390ADTR2G
TSSOP16*
2500 Units / Reel
MC74HC390AF
SOEIAJ16
50 Units / Rail
MC74HC390AFG
SOEIAJ16
(PbFree)
50 Units / Rail
MC74HC390AFEL
SOEIAJ16
2000 Units / Reel
MC74HC390AFELG
SOEIAJ16
(PbFree)
2000 Units / Reel
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently PbFree.
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