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SN74AVCH20T245 Datasheet(PDF) 1 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) 1 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
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Control Inputs VIH/VIL Levels are
Referenced to VCCA Voltage
D VCC Isolation Feature − If Either VCC Input
Is at GND, Both Ports Are in the
High-Impedance State
D Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
D Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
D Ioff Supports Partial-Power-Down Mode
Operation
D I/Os Are 4.6-V Tolerant
D Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
D Max Data Rates
− 380 Mbps (1.8-V to 3.3-V Translation)
− 260 Mbps (< 1.8-V to 3.3-V Translation)
− 260 Mbps (Translate to 2.5 V)
− 210 Mbps (Translate to 1.8 V)
− 120 Mbps (Translate to 1.5 V)
− 100 Mbps (Translate to 1.2 V)
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 8000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
description/ordering information
This 20-bit noninverting bus transceiver uses two separate configurable power-supply rails. The
SN74AVCH20T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB
as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The
B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal
low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
TSSOP − DGG
Tape and reel
SN74AVCH20T245GR
AVCH20T245
−40
°C to 85°C
TVSOP − DGV
Tape and reel
SN74AVCH20T245VR
WK245
−40
°C to 85°C
VFBGA − GQL
Tape and reel
SN74AVCH20T245KR
WK245
VFBGA − ZQL (Pb-free)
Tape and reel
74AVCH20T245ZQLR
WK245
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available
at www.ti.com/sc/package.
DGG OR DGV PACKAGE
(TOP VIEW)
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1DIR
1B1
1B2
GND
1B3
1B4
VCCB
1B5
1B6
1B7
GND
1B8
1B9
1B10
2B1
2B2
2B3
GND
2B4
2B5
2B6
VCCB
2B7
2B8
GND
2B9
2B10
2DIR
1OE
1A1
1A2
GND
1A3
1A4
VCCA
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCCA
2A7
2A8
GND
2A9
2A10
2OE
Copyright
 2005, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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