参数资料
型号: MM74C48J
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 通用总线功能
英文描述: BCD-to-7 Segment Decoder
中文描述: CMOS SERIES, SEVEN SEGMENT DECODER/DRIVER, TRUE OUTPUT, CDIP16
封装: CERAMIC, DIP-16
文件页数: 3/6页
文件大小: 130K
代理商: MM74C48J
AC Electrical Characteristics
*
T
A
e
25
§
C, C
L
e
50 pF, unless otherwise specified
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t
pd0,
t
pd1
Propagation Delay to a ‘‘1’’ or ‘‘0’’ on
Segment Outputs from Data Inputs
V
CC
e
5.0V
V
CC
e
10V
V
CC
e
5.0V
V
CC
e
10V
V
CC
e
5.0V
V
CC
e
10V
V
CC
e
5.0V
V
CC
e
10V
V
CC
e
5.0V
V
CC
e
10V
V
CC
e
5.0V
V
CC
e
10V
450
1500
ns
160
500
ns
t
pd0
Propagation Delay to a ‘‘0’’ on
Segment Outputs from RB Input
500
1600
ns
180
550
ns
t
pd0
Propagation Delay to a ‘‘0’’ on
Segment Outputs from Blanking Input
350
1200
ns
140
450
ns
t
pd1
Propagation Delay to a ‘‘1’’ on
Segment Outputs from Lamp Test
450
1500
ns
160
500
ns
t
pd1
Propagation Delay to a ‘‘1’’ on RB
Output from RB Input
600
2000
ns
250
800
ns
t
pd0
Propagation Delay to a ‘‘0’’ on RB
Output from RB Input
140
450
ns
50
150
ns
*
AC Parameters are guaranteed by DC correlated testing.
Typical Applications
Typical Connection Utilizing the Ripple-Blanking Feature
TL/F/5883–4
First three stages will blank leading zeros, the fourth stage will not blank zeros.
3
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