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SN54AC245 Datasheet(HTML) 4 Page - Texas Instruments

Part No. SN54AC245
Description  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54AC245 Datasheet(HTML) 4 Page - Texas Instruments

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SN54AC245, SN74AC245
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCAS461F − FEBRUARY 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
VCC
TA = 25°C
SN54AC245
SN74AC245
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
3 V
2.9
2.9
2.9
IOH = −50 mA
4.5 V
4.4
4.4
4.4
IOH = −50 mA
5.5 V
5.4
5.4
5.4
VOH
IOH = −12 mA
3 V
2.56
2.4
2.46
V
VOH
IOH = −24 mA
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
0.002
0.1
0.1
0.1
IOL = 50 mA
4.5 V
0.001
0.1
0.1
0.1
IOL = 50 mA
5.5 V
0.001
0.1
0.1
0.1
VOL
IOL = 12 mA
3 V
0.36
0.5
0.44
V
VOL
IOL = 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
II
A or B ports‡
VI = VCC or GND
5.5 V
±0.1
±1
±1
A
II
OE or DIR
VI = VCC or GND
5.5 V
±0.1
±1
±1
mA
IOZ
VO = VCC or GND,
VI(OE) = VIL or VIH
5.5 V
±0.5
±10
±5
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
80
40
mA
Ci
VI = VCC or GND
5 V
4.5
pF
Cio
VO = VCC or GND
5 V
15
pF
† Not more than one output should be tested at a time, and the duration of the test should not exceed 2 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
SN54AC245
SN74AC245
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A or B
B or A
1.5
5
8.5
1
11.5
1
9
ns
tPHL
A or B
B or A
1.5
5
8.5
1
10
1
9
ns
tPZH
OE
A or B
2.5
7
11.5
1
13.5
2
12.5
ns
tPZL
OE
A or B
2.5
7.5
12
1
14.5
2
13.5
ns
tPHZ
OE
A or B
2
6.5
12
1
13.5
1
12.5
ns
tPLZ
OE
A or B
2
7
11.5
1
14
1.5
13
ns


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