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SN74AVCH20T245 Datasheet(PDF) 6 Page - Texas Instruments

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Part No. SN74AVCH20T245
Description  20 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3 STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74AVCH20T245 Datasheet(HTML) 6 Page - Texas Instruments

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SN74AVCH20T245
20BIT DUALSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS
SCES567F − MAY 2004 − REVISED APRIL 2005
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Notes 10 and 11) (continued)
PARAMETER
TEST CONDITIONS
VCCA
VCCB
TA = 25°C
−40
°C to 85°C
UNIT
PARAMETER
TEST CONDITIONS
VCCA
VCCB
MIN
TYP
MAX
MIN
MAX
UNIT
Ioff
A port
VI or VO = 0 to 3.6 V
0 V
0 to 3.6 V
±0.1
±1
±5
A
Ioff
B port
VI or VO = 0 to 3.6 V
0 to 3.6 V
0 V
±0.1
±1
±5
µA
I
A or B
ports
VO = VCCO or
GND,
OE = VIH
3.6 V
3.6 V
±0.5
±2.5
±5
A
IOZ†
B port
VO = VCCO or
GND,
VI = VCCI or GND
OE =
0 V
3.6 V
±5
µA
A port
VI = VCCI or GND
OE =
don’t care
3.6 V
0 V
±5
1.2 V to 3.6 V
1.2 V to 3.6 V
35
ICCA
VI = VCCI or GND,
IO = 0
0 V
3.6 V
−5
µA
ICCA
VI = VCCI or GND,
IO = 0
3.6 V
0 V
35
µA
1.2 V to 3.6 V
1.2 V to 3.6 V
35
ICCB
VI = VCCI or GND,
IO = 0
0 V
3.6 V
35
µA
ICCB
VI = VCCI or GND,
IO = 0
3.6 V
0 V
−5
µA
ICCA ) ICCB
VI = VCCI or GND,
IO = 0
1.2 V to 3.6 V
1.2 V to 3.6 V
65
µA
Ci
Control
inputs
VI = 3.3 V or GND
3.3 V
3.3 V
3.5
pF
Cio
A or B
ports
VO = 3.3 V or GND
3.3 V
3.3 V
7
pF
† For I/O ports, the parameter IOZ includes the input leakage current.
NOTES: 10. VCCO is the VCC associated with the output port.
11. VCCI is the VCC associated with the input port.
switching characteristics over recommended operating free-air temperature range,
VCCA = 1.2 V (see Figure 1)
PARAMETER
FROM
TO
VCCB = 1.2 V
VCCB = 1.5 V
VCCB = 1.8 V
VCCB = 2.5 V
VCCB = 3.3 V
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
TYP
TYP
TYP
TYP
TYP
UNIT
tPLH
A
B
3.8
3.1
2.8
2.7
3.3
ns
tPHL
A
B
3.8
3.1
2.8
2.7
3.3
ns
tPLH
B
A
4.1
3.8
3.6
3.5
3.4
ns
tPHL
B
A
4.1
3.8
3.6
3.5
3.4
ns
tPZH
OE
A
6.5
6.5
6.5
6.5
6.5
ns
tPZL
OE
A
6.5
6.5
6.5
6.5
6.5
ns
tPZH
OE
B
5.6
4.4
3.8
3.3
3.2
ns
tPZL
OE
B
5.6
4.4
3.8
3.3
3.2
ns
tPHZ
OE
A
6.4
6.4
6.4
6.4
6.4
ns
tPLZ
OE
A
6.4
6.4
6.4
6.4
6.4
ns
tPHZ
OE
B
5.7
4.6
4.7
4.1
5.4
ns
tPLZ
OE
B
5.7
4.6
4.7
4.1
5.4
ns


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