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SN74AVCH20T245 Datasheet(PDF) 4 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) 4 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
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Notes 4 through 8)
VCCI
VCCO
MIN
MAX
UNIT
VCCA
Supply voltage
1.2
3.6
V
VCCB
Supply voltage
1.2
3.6
V
High-level input
Data inputs
1.2 V to 1.95 V
VCCI × 0.65
VIH
High-level input
voltage
Data inputs
(see Note 7)
1.95 V to 2.7 V
1.6
V
VIH
voltage
(see Note 7)
2.7 V to 3.6 V
2
V
Low-level input
Data inputs
1.2 V to 1.95 V
VCCI × 0.35
VIL
Low-level input
voltage
Data inputs
(see Note 7)
1.95 V to 2.7 V
0.7
V
VIL
voltage
(see Note 7)
2.7 V to 3.6 V
0.8
V
High-level input
DIR
1.2 V to 1.95 V
VCCA×0.65
VIH
High-level input
voltage
DIR
(referenced to VCCA)
1.95 V to 2.7 V
1.6
V
VIH
voltage
(referenced to VCCA)
(see Note 8)
2.7 V to 3.6 V
2
V
Low-level input
DIR
1.2 V to 1.95 V
VCCA × 0.35
VIL
Low-level input
voltage
DIR
(referenced to VCCA)
1.95 V to 2.7 V
0.7
V
VIL
voltage
(referenced to VCCA)
(see Note 8)
2.7 V to 3.6 V
0.8
V
VI
Input voltage
0
3.6
V
VO
Output voltage
Active state
0
VCCO
V
VO
Output voltage
3-state
0
3.6
V
1.2 V
−3
1.4 V to 1.6 V
−6
IOH
High-level output current
1.65 V to 1.95 V
−8
mA
IOH
High-level output current
2.3 V to 2.7 V
−9
mA
3 V to 3.6 V
−12
1.2 V
3
1.4 V to 1.6 V
6
IOL
Low-level output current
1.65 V to 1.95 V
8
mA
IOL
Low-level output current
2.3 V to 2.7 V
9
mA
3 V to 3.6 V
12
∆t/∆v
Input transition rise or fall rate
5
ns/V
TA
Operating free-air temperature
−40
85
°C
NOTES:
4. VCCI is the VCC associated with the data input port.
5. VCCO is the VCC associated with the output port.
6. All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
7. For VCCI values not specified in the data sheet, VIH(min) = VCCI x 0.7 V, VIL(max) = VCCI x 0.3 V.
8. For VCCI values not specified in the data sheet, VIH(min) = VCCA x 0.7 V, VIL(max) = VCCA x 0.3 V.


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