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SN74AVC24T245GRGR-SN74AVC24T245ZRGR
24-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs
www.ti.com
FEATURES
DESCRIPTION/ORDERING INFORMATION
SN74AVC24T245
24-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTSSCES552C–FEBRUARY 2004–REVISED AUGUST 2005
Control InputsVIH/VIL Levels Are Referenced •
Ioff Supports Partial-Power-Down ModeV CCA Voltage Operation VCC Isolation Feature–If EitherVCC InputIsat •
I/Os Are 4.6-V Tolerant
GND, All Outputs Arein the High-Impedance •
Latch-Up Performance Exceeds 100 mA Per
State JESD 78, ClassII Overvoltage-Tolerant Inputs/Outputs Allow •
ESD Protection Exceeds JESD22Mixed-Voltage-Mode Data Communications – 8000-V Human-Body Model (A114-A)•
Fully Configurable Dual-Rail Design Allows – 200-V Machine Model (A115-A)Each Portto Operate Over Full 1.2-Vto 3.6-V – 1000-V Charged-Device Model (C101)Power-Supply Rangelow-voltage bidirectional translation between anyof the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVC24T245is designed for asynchronous communication between data buses. The device transmits
data from theA busto theB bus or from theB busto theA bus, depending on the logic levelat the
direction-control (DIR) input. The output-enable (OE) input can be usedto disable the outputsso the buses are
effectively isolated.
The SN74AVC24T245is designedso that the control pins (1DIR, 2DIR, 3DIR, 4DIR, 5DIR, 6DIR, 1OE, 2OE,
3OE, 4OE, 5OE, and 6OE) are suppliedby VCCA.
This deviceis fully specified for partial-power-down applications using Ioff. TheIoff circuitry disables the outputs,
preventing damaging current backflow through the device whenitis powered down.
The VCC isolation feature ensures thatif either VCC inputisat GND, then both ports arein the high-impedance
state. ensure the high-impedance state during powerupor power down, OE should be tiedto VCCA througha pullup
resistor; the minimum valueof the resistoris determinedby the current-sinking capabilityof the driver.
ORDERING INFORMATION PACKAGE(1) ORDERABLE PART NUMBER TOP-SIDE MARKINGLFBGA– GRG Tape and reel SN74AVC24T245GRGR–40°Cto 85°C WH245LFBGA– ZRG (Pb-free) Tape and reel SN74AVC24T245ZRGR
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelinesare availableat
www.ti.com/sc/package.
