TXV0108-Q1 Series

Automotive, dual-supply direction-controlled eight-channel voltage translator

Catalog

Automotive, dual-supply direction-controlled eight-channel voltage translator

Part	Data Rate	Channels per Circuit	Number of Circuits	Voltage - VCCA [Min]	Voltage - VCCA [Max]	Channel Type	Voltage - VCCB [Max]	Voltage - VCCB [Min]	Mounting Type	Translator Type	Package / Case	Supplier Device Package [y]	Supplier Device Package	Supplier Device Package [x]	Operating Temperature [Min]	Operating Temperature [Max]	Output Type
Texas Instruments TXV0108QWRGYRQ1	320 Mbps	8	1	1.65 V	3.6 V	Unidirectional	3.6 V	1.65 V	Surface Mount	Voltage Level	24-VFQFN Exposed Pad	3.5	24-VQFN	5.5	-40 °C	125 °C	Push-Pull Tri-State

Catalog

Automotive, dual-supply direction-controlled eight-channel voltage translator

Key Features

• Configurable design allows each port to operate with a power supply range from 1.14V to 3.6VSupports up to 500Mbps for 1.65V to 3.6VAEC-Q100 qualified for automotive applicationsMeets RGMII 2.0 timing specifications:< 750ps rise and fall time< ± 5 % duty cycle distortion< ± 400ps channel to channel skewUp to 250Mbps/channelIntegrated 10Ω damping output resistor to minimize signal reflectionsHigh drive strength (up to 12mA at 3.6V)Fully configurable symmetric dual-rail designOptimal signal integrity performance with 390ps peak-to-peak jitter for 1.8V to 3.3VFeatures VCC isolation and VCC disconnectIoff supports partial-power-down mode operationLatch-up performance exceeds 100mA per JESD 78, Class IIESD protection exceeds JESD 22:2000-V Human-Body Model1000-V Charged-Device ModelLow power consumption:10µA maximum (25°C)20µA maximum (–40°C to 125°C)Operating temperature from –40°C to +125°CPin compatible withSN74AVC8T245 (VQFN)Available in wettable flank VQFN (RGY) packageConfigurable design allows each port to operate with a power supply range from 1.14V to 3.6VSupports up to 500Mbps for 1.65V to 3.6VAEC-Q100 qualified for automotive applicationsMeets RGMII 2.0 timing specifications:< 750ps rise and fall time< ± 5 % duty cycle distortion< ± 400ps channel to channel skewUp to 250Mbps/channelIntegrated 10Ω damping output resistor to minimize signal reflectionsHigh drive strength (up to 12mA at 3.6V)Fully configurable symmetric dual-rail designOptimal signal integrity performance with 390ps peak-to-peak jitter for 1.8V to 3.3VFeatures VCC isolation and VCC disconnectIoff supports partial-power-down mode operationLatch-up performance exceeds 100mA per JESD 78, Class IIESD protection exceeds JESD 22:2000-V Human-Body Model1000-V Charged-Device ModelLow power consumption:10µA maximum (25°C)20µA maximum (–40°C to 125°C)Operating temperature from –40°C to +125°CPin compatible withSN74AVC8T245 (VQFN)Available in wettable flank VQFN (RGY) package

Description

The TXV0108-Q1 is an 8-bit, dual-supply direction controlled low-skew, low-jitter voltage translation device. This device can be used for redriving, voltage translation, and power isolation when implementing skew sensitive interface, such as RGMII between Ethernet MAC and PHY devices. The Ax I/O pins and control pins (DIR, OE) are referenced to VCCA logic levels, and Bx I/O pins are referenced to VCCB logic levels. This device has improved channel-to-channel skew, duty cycle distortion and symmetric rise and fall time for applications requiring strict timing conditions. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC supply is at or near 0V both ports will switch to a high-impedance state. This feature enables power isolation for communications across multiple MACs and PHYs, and is beneficial in situations where MACs and PHYs are powered up asynchronously preventing current backflow between devices. A High on DIR allows data transmission from A to B while a Low on DIR allows data transmission from B to A when OE is set to Low. When OE is set to High, both Ax and Bx pins will be forced into a high-impedance state. See Device Functional Modes for a summary of the operation of the control logic. The TXV0108-Q1 is an 8-bit, dual-supply direction controlled low-skew, low-jitter voltage translation device. This device can be used for redriving, voltage translation, and power isolation when implementing skew sensitive interface, such as RGMII between Ethernet MAC and PHY devices. The Ax I/O pins and control pins (DIR, OE) are referenced to VCCA logic levels, and Bx I/O pins are referenced to VCCB logic levels. This device has improved channel-to-channel skew, duty cycle distortion and symmetric rise and fall time for applications requiring strict timing conditions. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC supply is at or near 0V both ports will switch to a high-impedance state. This feature enables power isolation for communications across multiple MACs and PHYs, and is beneficial in situations where MACs and PHYs are powered up asynchronously preventing current backflow between devices. A High on DIR allows data transmission from A to B while a Low on DIR allows data transmission from B to A when OE is set to Low. When OE is set to High, both Ax and Bx pins will be forced into a high-impedance state. See Device Functional Modes for a summary of the operation of the control logic.