參數(shù)資料
型號: 74F393
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Dual 4-bit binary ripple counter
中文描述: 雙4位二進(jìn)制紋波計(jì)數(shù)器
文件頁數(shù): 3/8頁
文件大?。?/td> 75K
代理商: 74F393
Philips Semiconductors
Product specification
74F393
Dual 4-bit binary ripple counter
1988 Nov 01
3
LOGIC DIAGRAM
Q0n
3, 11
Q1n
4, 10
Q2n
5, 9
Q3n
6, 8
2, 12
CPn
MRn
V
= Pin 14
GND = Pin 7
SF00707
CP
Q
R
D
J
CP
Q
R
D
J
CP
Q
R
D
J
CP
Q
R
D
J
1, 13
Q
K
Q
K
Q
K
Q
K
FUNCTION TABLE
COUNT
OUTPUTS
Q
0n
Q
1n
Q
2n
Q
3n
0
L
L
L
L
1
H
L
L
L
2
L
H
L
L
3
H
H
L
L
4
L
L
H
L
5
H
L
H
L
6
L
H
H
L
7
H
H
H
L
8
L
L
L
H
9
H
L
L
H
10
L
H
L
H
11
H
H
L
H
12
L
L
H
H
13
H
L
H
H
14
L
H
H
H
15
H
H
H
H
H = High voltage level transition
L = Low voltage level
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limits set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free-air temperature range.)
SYMBOL
PARAMETER
RATING
UNIT
V
CC
Supply voltage
–0.5 to +7.0
V
V
IN
Input voltage
–0.5 to +7.0
V
I
IN
Input current
–30 to +5
mA
V
OUT
Voltage applied to output in High output state
–0.5 to V
CC
V
I
OUT
Current applied to output in Low output state
40
mA
T
amb
Operating free-air temperature range
0 to +70
°
C
T
stg
Storage temperature range
–65 to +150
°
C
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
LIMITS
UNIT
MIN
NOM
MAX
V
CC
Supply voltage
4.5
5.0
5.5
V
V
IH
High-level input voltage
2.0
V
V
IL
Low-level input voltage
0.8
V
I
IK
Input clamp current
–18
mA
I
OH
High-level output current
–1
mA
I
OL
Low-level output current
20
mA
T
amb
Operating free-air temperature range
0
70
°
C
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