SN74AVCAH164245KR ,16-Bit Dual-Supply Bus Transceiver W/Configurable Voltage TranslationSCES396A–JULY 2002–REVISED JUNE 2005TERMINAL ASSIGNMENTSDGG OR DGV PACKAGE(TOP VIEW)1 481DIR 1OE2 4 ..
SN74AVCAH164245VR ,16-Bit Dual-Supply Bus Transceiver W/Configurable Voltage TranslationLOGIC DIAGRAM (POSITIVE LOGIC)2412DIR1DIR48 251OE 2OE47 361A1 2A11321B1 2B1To Seven Other Channels ..
SN74AVCB164245GR ,16-Bit Dual-Supply Bus Transceiver w/ Config. Xlation and 3-State OutputsSCES394D–JUNE 2002–REVISED JUNE 2005GQL OR ZQL PACKAGETERMINAL ASSIGNMENTS(1)(TOP VIEW)(56-Ball GQL ..
SN74AVCB164245KR ,16-Bit Dual-Supply Bus Transceiver w/ Config. Xlation and 3-State Outputs/sc/package.Please be aware that an important notice concerning availability, standard warranty, an ..
SN74AVCB164245VR ,16-Bit Dual-Supply Bus Transceiver w/ Config. Xlation and 3-State OutputsSCES394D–JUNE 2002–REVISED JUNE 2005TERMINAL ASSIGNMENTSDGG OR DGV PACKAGE(TOP VIEW)1 481DIR 1OE2 4 ..
SN74AVCB324245KR ,32-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTSFEATURES • Inputs/Outputs Can Tolerate up to 4.6 V,Which Allows Mixed-Voltage-Mode Data• Member of ..
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SN74LVTH125DBR ,3.3-V ABT Quadruple Bus Buffers With 3-State Outputsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
SN74LVTH125DBRG4 , 3.3-V ABT QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS
SN74LVTH125DBRG4 , 3.3-V ABT QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS
SN74LVTH125DGVRG4 ,3.3-V ABT Quadruple Bus Buffers With 3-State Outputs 14-TVSOP -40 to 85maximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN74LVTH125DR ,3.3-V ABT Quadruple Bus Buffers With 3-State Outputsmaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
74AVCAH164245GRG4-74AVCAH164245VRG4-74AVCAH164245ZQLR-SN74AVCAH164245KR-SN74AVCAH164245VR
16-Bit Dual-Supply Bus Transceiver W/Configurable Voltage Translation 48-TSSOP -40 to 85
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FEATURES
DESCRIPTION/ORDERING INFORMATION
SN74AVCAH164245
16-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTSSCES396A–JULY 2002–REVISED JUNE 2005
Ioff Supports Partial-Power-Down Mode
Operation•
Memberof the Texas Instruments Widebus™
Family •
Fully Configurable Dual-Rail Design Allows
Each Portto Operate Over the Full 1.4-Vto•
DOC™ Circuitry Dynamically Changes Output
3.6-V Power-Supply RangeImpedance, Resultingin Noise Reduction
Without Speed Degradation •
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors•
Dynamic Drive CapabilityIs Equivalentto
Standard Outputs With IOH and IOLof ±24
mA •
Latch-Up Performance Exceeds 100 mA Per 2.5-V VCC JESD 78, ClassII Control InputsVIH/VIL Levels Are Referenced •
ESD Protection Exceeds JESD22
Mixed-Voltage-Mode Data CommunicationsThis 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The portis designedto track VCCA. VCCA accepts any supply voltage from 1.4Vto 3.6V. TheB portis designedto
track VCCB. VCCB accepts any supply voltage from 1.4Vto 3.6 V. This allows for universal low-voltage
bidirectional translation between anyof the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVCAH164245is designed for asynchronous communication between data buses. The device
transmits data from theA busto theB busor 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 SN74AVCAH164245is designedso that the control pins (1DIR, 2DIR, 1OE, and 2OE) are suppliedby VCCA.
Active bus-hold circuitryis providedto hold unusedor floating data inputsata valid logic level. Useof pullupor
pulldown resistors with the bus-hold circuitryis not recommended. 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.
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.If either VCC inputisat GND,
then both ports arein the high-impedance state.
ORDERING INFORMATION PACKAGE(1) ORDERABLE PART NUMBER TOP-SIDE MARKINGTSSOP– DGG Tape and reel SN74AVCAH164245GR AVCAH164245
–40°Cto 85°C TVSOP– DGV Tape and reel SN74AVCAH164245VR WAH4245
VFBGA– GQL Tape and reel SN74AVCAH164245KR WAH4245 drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelinesare availableat
