SN74AVCB164245-EP Series

Enhanced Product 16-Bit Dual-Supply Bus Transceiver w/ configurable translation and 3-state outputs

Catalog

Enhanced Product 16-Bit Dual-Supply Bus Transceiver w/ configurable translation and 3-state outputs

Part	Supplier Device Package	Translator Type	Voltage - VCCA [Max]	Voltage - VCCA [Min]	Package / Case	Package / Case	Package / Case [custom]	Voltage - VCCB [Min]	Voltage - VCCB [Max]	Mounting Type	Output Type	Number of Circuits	Operating Temperature [Max]	Operating Temperature [Min]	Channels per Circuit	Channel Type
Texas Instruments CAVCB164245MDGGEP	48-TSSOP	Voltage Level	3.6 V	1.4 V	48-TFSOP	0.24 in	6.1 mm	1.4 V	3.6 V	Surface Mount	Non-Inverted Tri-State	2	125 °C	-55 °C	8	Bidirectional
Texas Instruments CAVCB164245MDGGREP	48-TSSOP	Voltage Level	3.6 V	1.4 V	48-TFSOP	0.24 in	6.1 mm	1.4 V	3.6 V	Surface Mount	Non-Inverted Tri-State	2	125 °C	-55 °C	8	Bidirectional

Catalog

Enhanced Product 16-Bit Dual-Supply Bus Transceiver w/ configurable translation and 3-state outputs

Key Features

• Member of the Texas Instruments Widebus FamilyDOC Circuitry Dynamically Changes Output Impedance,Resulting in Noise Reduction Without Speed DegradationDynamic Drive Capability Is Equivalent to Standard Outputs WithIOHand IOLof ±24 mA at 2.5-VVCCControl Inputs VIHand VILLevels AreReferenced to VCCBVoltageIf Either VCCInput Is at GND, Both Ports Are in theHigh-Impedance StateOvervoltage-Tolerant Inputs and Outputs Allow Mixed-Voltage-Mode DataCommunicationsIoffSupports Partial-Power-Down Mode OperationFully Configurable Dual-Rail Design Allows Each Port to Operate OverFull 1.4-V to 3.6-V Power-Supply RangeLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)750-V Charged-Device Model (C101)Member of the Texas Instruments Widebus FamilyDOC Circuitry Dynamically Changes Output Impedance,Resulting in Noise Reduction Without Speed DegradationDynamic Drive Capability Is Equivalent to Standard Outputs WithIOHand IOLof ±24 mA at 2.5-VVCCControl Inputs VIHand VILLevels AreReferenced to VCCBVoltageIf Either VCCInput Is at GND, Both Ports Are in theHigh-Impedance StateOvervoltage-Tolerant Inputs and Outputs Allow Mixed-Voltage-Mode DataCommunicationsIoffSupports Partial-Power-Down Mode OperationFully Configurable Dual-Rail Design Allows Each Port to Operate OverFull 1.4-V to 3.6-V Power-Supply RangeLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIESD Protection Exceeds JESD 222000-V Human-Body Model (A114-A)200-V Machine Model (A115-A)750-V Charged-Device Model (C101)

Description

This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCAaccepts any supply voltage from 1.4 V to 3.6 V. The B port is designed to track VCCB. VCCBaccepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The SN74AVCB164245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated. The SN74AVCB164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCB. To ensure the high-impedance state during power up or power down,OEshould be tied to VCCBthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. If either VCCinput is at GND, both ports are in the high-impedance state. This 16-bit (dual-octal) noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCAaccepts any supply voltage from 1.4 V to 3.6 V. The B port is designed to track VCCB. VCCBaccepts any supply voltage from 1.4 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The SN74AVCB164245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated. The SN74AVCB164245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCB. To ensure the high-impedance state during power up or power down,OEshould be tied to VCCBthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. This device is fully specified for partial-power-down applications using Ioff. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. If either VCCinput is at GND, both ports are in the high-impedance state.