SN74LXCH8T245 Series

8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs

Catalog

8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs

Part	Number of Bits per Element	Number of Elements	Voltage - Supply [Max]	Voltage - Supply [Min]	Output Type	Current - Output High, Low [y]	Current - Output High, Low [x]	Mounting Type	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Logic Type	Supplier Device Package [y]	Supplier Device Package	Supplier Device Package [x]
Texas Instruments SN74LXCH8T245RHLR	8	1	5.5 V	1.08 V	3-State	32 mA	32 mA	Surface Mount	-40 °C	125 °C	24-VFQFN Exposed Pad	Translation Transceiver	3.5	24-VQFN	5.5

Catalog

8-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs

Key Features

• Fully Configurable Dual-Rail Design Allows Each Port to Operate from 1.1 V to 5.5 VRobust, Glitch-Free Power Supply SequencingUp to 420-Mbps Support for 3.3 V to 5.0 VBus Hold on Data Inputs Eliminates the Need for External Pull-Up and Pull-Down ResistorsSchmitt-Trigger Control Inputs Allow for Slow or Noisy InputsControl Inputs with Integrated Static Pull-Down Resistors Allow for Floating Control InputsHigh Drive Strength (up to 32 mA at 5 V)Low Power Consumption4-µA Maximum (25°C)12-µA Maximum (–40°C to 125°C)VCCIsolation and VCCDisconnect featureIf Either VCCSupply is < 100 mV All I/O’s Become High-ImpedanceIoff-floatSupports VCCDisconnect OperationIoffSupports Partial-Power-Down Mode OperationCompatible with LVC Family Level ShiftersControl Logic (DIR andOE) are Referenced to VCCAOperating Temperature from –40°C to +125°CLatch-Up Performance Exceeds 100 mA per JESD 78, Class IIESD Protection Exceeds JESD 224000-V Human-Body Model1000-V Charged-Device ModelFully Configurable Dual-Rail Design Allows Each Port to Operate from 1.1 V to 5.5 VRobust, Glitch-Free Power Supply SequencingUp to 420-Mbps Support for 3.3 V to 5.0 VBus Hold on Data Inputs Eliminates the Need for External Pull-Up and Pull-Down ResistorsSchmitt-Trigger Control Inputs Allow for Slow or Noisy InputsControl Inputs with Integrated Static Pull-Down Resistors Allow for Floating Control InputsHigh Drive Strength (up to 32 mA at 5 V)Low Power Consumption4-µA Maximum (25°C)12-µA Maximum (–40°C to 125°C)VCCIsolation and VCCDisconnect featureIf Either VCCSupply is < 100 mV All I/O’s Become High-ImpedanceIoff-floatSupports VCCDisconnect OperationIoffSupports Partial-Power-Down Mode OperationCompatible with LVC Family Level ShiftersControl Logic (DIR andOE) are Referenced to VCCAOperating Temperature from –40°C to +125°CLatch-Up Performance Exceeds 100 mA per JESD 78, Class IIESD Protection Exceeds JESD 224000-V Human-Body Model1000-V Charged-Device Model

Description

The SN74LXCH8T245 is an 8-bit, dual-supply noninverting bidirectional voltage level translation device with bus-hold circuitry. Ax pins and control pins (DIR andOE) are referenced to VCCAlogic levels, and Bx pins are referenced to VCCBlogic levels. The A port is able to accept I/O voltages ranging from 1.1 V to 5.5 V, while the B port can accept I/O voltages from 1.1 V to 5.5 V. A high on DIR allows data transmission from A to B and a low on DIR allows data transmission from B to A whenOEis set to low. WhenOEis set to high, both Ax and Bx pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic. The SN74LXCH8T245 is an 8-bit, dual-supply noninverting bidirectional voltage level translation device with bus-hold circuitry. Ax pins and control pins (DIR andOE) are referenced to VCCAlogic levels, and Bx pins are referenced to VCCBlogic levels. The A port is able to accept I/O voltages ranging from 1.1 V to 5.5 V, while the B port can accept I/O voltages from 1.1 V to 5.5 V. A high on DIR allows data transmission from A to B and a low on DIR allows data transmission from B to A whenOEis set to low. WhenOEis set to high, both Ax and Bx pins are in the high-impedance state. SeeDevice Functional Modesfor a summary of the operation of the control logic.