參數(shù)資料
型號: 74ACT11257N
廠商: Texas Instruments, Inc.
英文描述: QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS
中文描述: 四2線1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換具有三態(tài)輸出
文件頁數(shù): 4/6頁
文件大?。?/td> 99K
代理商: 74ACT11257N
74ACT11257
QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER
WITH 3-STATE OUTPUTS
SCAS053B – JANUARY 1989 – REVISED APRIL 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETERS
TEST CONDITIONS
VCC
TA = 25
°
C
TYP
MIN
MAX
UNIT
MIN
4.4
MAX
IOH= 50 A
IOH = –50 A
4.5 V
4.4
5.5 V
5.4
5.4
VOH
IOH= 24 mA
IOH = –24 mA
4.5 V
3.94
3.8
V
5.5 V
4.94
4.8
IOH = –75 mA
5.5 V
3.85
IOL= 50 A
IOL = 50 A
4.5 V
0.1
0.1
5.5 V
0.1
0.1
VOL
IOL= 24 mA
IOL = 24 mA
4.5 V
0.36
0.44
V
5.5 V
0.36
0.44
IOL = 75 mA
VO = VCC or GND
VI = VCC or GND
VI = VCC or GND,
One input at 3.4 V,
5.5 V
1.65
IOZ
II
ICC
ICC
Ci
Co
5.5 V
±
0.5
±
0.1
±
5
±
1
80
A
5.5 V
A
IO = 0
Other inputs at VCC or GND
5.5 V
8
A
5.5 V
0.9
1
mA
VI = VCC or GND
VO = VCC or GND
5 V
3.5
pF
5 V
8
pF
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V to VCC.
switching characteristics over recomended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
TA = 25
°
C
TYP
MIN
MAX
UNIT
(OUTPUT)
MIN
1.5
MAX
6.4
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A or B
Y
4.4
1.5
6.9
ns
1.5
5
8
1.5
8.7
A/B
Any Y
1.5
4.7
7.6
1.5
8.2
ns
1.5
5.7
8.5
1.5
9.4
OE
Any Y
1.5
4.2
6.9
1.5
7.3
ns
1.5
5.5
8.7
1.5
9.6
OE
Any Y
1.5
5.7
7.6
1.5
8.4
ns
1.5
6
7.9
1.5
8.5
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
41
UNIT
Cd
Cpd
Power dissipation capacitance
Outputs enabled
CL= 50 pF
CL = 50 pF,
f = 1 MHz
pF
Outputs disabled
13
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