參數(shù)資料
型號: 74F253
廠商: NXP Semiconductors N.V.
英文描述: Dual 4-bit input multiplexer (3-State)(雙4位輸入多路復(fù)用器(三態(tài)))
中文描述: 雙4位輸入多路復(fù)用器(3態(tài))(雙4位輸入多路復(fù)用器(三態(tài)))
文件頁數(shù): 6/10頁
文件大小: 80K
代理商: 74F253
Philips Semiconductors
Product specification
74F253
Dual 4-input multiplexer (3-State)
1988 Nov 29
6
AC ELECTRICAL CHARACTERISTICS
LIMITS
SYMBOL
PARAMETER
TEST
CONDITION
V
CC
= +5V
T
amb
= +25
°
C
C
L
= 50pF
R
L
= 500
V
CC
= +5V
±
10%
T
amb
= 0
°
C to +70
°
C
C
L
= 50pF
R
L
= 500
UNIT
MIN
TYP
MAX
MIN
MAX
t
PLH
t
PHL
Propagation delay
In to Yn
Waveform NO TAG
3.0
3.0
4.5
5.0
7.0
7.0
3.0
3.0
7.5
8.0
ns
t
PLH
t
PHL
Propagation delay
Sn to Yn
Waveform NO TAG
4.5
5.0
7.5
8.5
10.5
11.0
4.5
4.5
11.0
12.0
ns
t
PZH
t
PZL
Output Enable time to
High or Low level
Waveform 2
Waveform 3
3.0
3.0
6.5
6.5
8.0
8.0
3.0
3.0
9.0
9.0
ns
t
PHZ
t
PLZ
Output Disable time
from High or Low level
Waveform 2
Waveform 3
2.5
2.0
3.5
3.0
5.0
5.0
2.0
1.5
6.0
6.0
ns
AC WAVEFORMS
For all waveforms, V
M
= 1.5V
V
M
V
M
V
M
V
M
Yn
In, Sn
t
PLH
t
PHL
SF00802
Waveform 1. Propagation Deley, Data and Select to Output
V
M
V
M
V
M
t
PHZ
t
PZH
V
OH
–0.3V
OEn
SF00804
0V
Yn
Waveform 2.
3-State Output Enable Time to High Level and
Output Disable Time from High Level
V
M
V
M
V
M
t
PLZ
t
PZL
V
OL
+0.3V
OEn
Yn
SF00803
Waveform 3.
3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
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