74ALVTH162245 Series

2.5-V/3.3-V 16-Bit Bus Transceivers With 3-State Outputs

Catalog(2 parts)

Part	Operating Temperature▲▼	Operating Temperature▲▼	Number of Bits per Element▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Package / Case	Supplier Device Package	Mounting Type	Number of Elements▲▼	Output Type	Package / Case▲▼	Package / Case▲▼
Texas Instruments SN74ALVTH162245DL Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-SSOP	85 °C	-40 °C	8 ul	2.700000047683716 V, 3.5999999046325684 V	2.299999952316284 V, 3 V	0.03200000151991844 A	0.012000000104308128 A	0.03200000151991844 A	0.012000000104308128 A	48-BSSOP (0.295", 7.50mm Width)	48-SSOP	Surface Mount	2 ul	3-State
Texas Instruments SN74ALVTH162245GR Transceiver, Non-Inverting 2 Element 8 Bit per Element 3-State Output 48-TSSOP	85 °C	-40 °C	8 ul	2.700000047683716 V, 3.5999999046325684 V	2.299999952316284 V, 3 V	0.03200000151991844 A	0.012000000104308128 A	0.03200000151991844 A	0.012000000104308128 A	48-TFSOP	48-TSSOP	Surface Mount	2 ul	3-State	0.006099999882280827 m	0.006095999851822853 m

Key Features

• State-of-the-Art Advanced BiCMOS Technology (ABT) Widebus™ Design for 2.5-V and 3.3-V Operation and Low Static-Power DissipationSupport Mixed-Mode Signal Operation (5-V Input and Output Voltages With 2.3-V to 3.6-V VCC)Typical VOLP(Output Ground Bounce)<0.8 V at VCC= 3.3 V, TA= 25°CHigh DriveA Port = –12/12 mA at 3.3-V VCCB port = –32/64 mA at 3.3-V VCCIoffand Power-Up 3-State Support Hot InsertionUse Bus Hold on Data Inputs in Place of External Pullup/Pulldown Resistors to Prevent the Bus From FloatingA-Port Outputs Have Equivalent 30-Series Resistors, So No External Resistors Are RequiredFlow-Through Architecture Facilitates Printed Circuit Board LayoutDistributed VCCand GND Pins Minimize High-Speed Switching NoiseLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIWidebus is a trademark of Texas Instruments.State-of-the-Art Advanced BiCMOS Technology (ABT) Widebus™ Design for 2.5-V and 3.3-V Operation and Low Static-Power DissipationSupport Mixed-Mode Signal Operation (5-V Input and Output Voltages With 2.3-V to 3.6-V VCC)Typical VOLP(Output Ground Bounce)<0.8 V at VCC= 3.3 V, TA= 25°CHigh DriveA Port = –12/12 mA at 3.3-V VCCB port = –32/64 mA at 3.3-V VCCIoffand Power-Up 3-State Support Hot InsertionUse Bus Hold on Data Inputs in Place of External Pullup/Pulldown Resistors to Prevent the Bus From FloatingA-Port Outputs Have Equivalent 30-Series Resistors, So No External Resistors Are RequiredFlow-Through Architecture Facilitates Printed Circuit Board LayoutDistributed VCCand GND Pins Minimize High-Speed Switching NoiseLatch-Up Performance Exceeds 100 mA Per JESD 78, Class IIWidebus is a trademark of Texas Instruments.

Description

The ’ALVTH162245 devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for 2.5-V or 3.3-V VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission 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 device so that the buses are effectively isolated. The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 30-series resistors to reduce overshoot and undershoot. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.2 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.2 V, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The ’ALVTH162245 devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for 2.5-V or 3.3-V VCCoperation, but with the capability to provide a TTL interface to a 5-V system environment. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission 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 device so that the buses are effectively isolated. The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 30-series resistors to reduce overshoot and undershoot. These devices are fully specified for hot-insertion applications using Ioffand power-up 3-state. The Ioffcircuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCCis between 0 and 1.2 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.2 V, OE\ should be tied to VCCthrough a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.