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SN74AC240DWG4 数据表(PDF) 4 Page - Texas Instruments

部件名 SN74AC240DWG4
功能描述  OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74AC240DWG4 数据表(HTML) 4 Page - Texas Instruments

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SN54AC240, SN74AC240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS512E − JUNE 1995 − REVISED OCTOBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
TA = 25°C
SN54AC240
SN74AC240
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
3 V
2.9
2.9
2.9
IOH = −50 μA
4.5 V
4.4
4.4
4.4
IOH
50
μA
5.5 V
5.4
5.4
5.4
V
IOH = −12 mA
3 V
2.56
2.4
2.46
V
VOH
I
24
A
4.5 V
3.86
3.7
3.76
V
IOH = −24 mA
5.5 V
4.86
4.7
4.76
IOH = −50 mA
5.5 V
3.85
IOH = −75 mA
5.5 V
3.85
3 V
0.1
0.1
0.1
IOL = 50 μA
4.5 V
0.1
0.1
0.1
IOL
50
μA
5.5 V
0.1
0.1
0.1
V
IOL = 12 mA
3 V
0.36
0.5
0.44
V
VOL
I
24 mA
4.5 V
0.36
0.5
0.44
V
IOL = 24 mA
5.5 V
0.36
0.5
0.44
IOL = 50 mA
5.5 V
1.65
IOL = 75 mA
5.5 V
1.65
I
Data inputs
VI = VCC or GND
55V
±0.1
±1
±1
A
II
Control inputs
VI = VCC or GND
5.5 V
±0.1
±1
±1
μA
IOZ‡
VO = VCC or GND,
VI(OE) = VIL or VIH
5.5 V
±0.25
±5
±2.5
μA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
80
40
μA
Ci
VI = VCC or GND
5 V
2.5
pF
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
For I/O ports, the parameter IOZ includes the input leakage current.
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54AC240
SN74AC240
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
1.5
6
8
1
11
1
9
ns
tPHL
A
Y
1.5
5.5
8
1
10.5
1
8.5
ns
tPZH
OE
Y
1.5
6
10.5
1
11.5
1
11
ns
tPZL
OE
Y
1.5
7
10
1
13
1
11
ns
tPHZ
OE
Y
1.5
7
10
1
12.5
1
10.5
ns
tPLZ
OE
Y
1.5
7.5
10.5
1
13.5
1
11.5
ns


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