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方向控制型电压转换器

SN74LVCH16T245

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16 位双电源总线收发器，可配置电压转换，三态输出

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SN74LVCH16T245

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产品详情

Technology family LVC Bits (#) 16 High input voltage (min) (V) 1.08 High input voltage (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Data rate (max) (Mbps) 200 IOH (max) (mA) -32 IOL (max) (mA) 32 Supply current (max) (µA) 30 Features Bus-hold, Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
Technology family LVC Bits (#) 16 High input voltage (min) (V) 1.08 High input voltage (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Data rate (max) (Mbps) 200 IOH (max) (mA) -32 IOL (max) (mA) 32 Supply current (max) (µA) 30 Features Bus-hold, Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 85
SSOP (DL) 48 164.358 mm² 15.88 x 10.35 TSSOP (DGG) 48 101.25 mm² 12.5 x 8.1 TVSOP (DGV) 48 62.08 mm² 9.7 x 6.4
  • Control Inputs V IH /V IL Levels are Referenced to
    V CCA Voltage
  • V CC Isolation Feature – If Either V CC Input is at
    GND, All Outputs are in the High-Impedance State
  • Overvoltage-Tolerant Inputs and Outputs Allow
    Mixed-Voltage-Mode Data Communications
  • Fully Configurable Dual-Rail Design Allows Each
    Port to Operate Over the Full 1.65 V to 5.5 V
    Power-Supply Range
  • Bus Hold on Data Inputs Eliminates the Need for
    External Pullup and Pulldown Resistors
  • I off Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22
  • Control Inputs V IH /V IL Levels are Referenced to
    V CCA Voltage
  • V CC Isolation Feature – If Either V CC Input is at
    GND, All Outputs are in the High-Impedance State
  • Overvoltage-Tolerant Inputs and Outputs Allow
    Mixed-Voltage-Mode Data Communications
  • Fully Configurable Dual-Rail Design Allows Each
    Port to Operate Over the Full 1.65 V to 5.5 V
    Power-Supply Range
  • Bus Hold on Data Inputs Eliminates the Need for
    External Pullup and Pulldown Resistors
  • I off Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22

This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track V CCA . V CCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track V CCB . V CCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

The SN74LVCH16T245 device control pins (1DIR, 2DIR, 1 OE , and 2 OE ) are supplied by V CCA .

The SN74LVCH16T245 device is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable ( OE ) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess I CC and I CCZ .

Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry on the powered-up side always stays active.

This device is fully specified for partial-power-down applications using I off . The I off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The V CC isolation feature ensures that if either V CC input is at GND, then all outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to V CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track V CCA . V CCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track V CCB . V CCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

The SN74LVCH16T245 device control pins (1DIR, 2DIR, 1 OE , and 2 OE ) are supplied by V CCA .

The SN74LVCH16T245 device is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable ( OE ) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess I CC and I CCZ .

Active bus-hold circuitry holds unused or undriven data inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. The bus-hold circuitry on the powered-up side always stays active.

This device is fully specified for partial-power-down applications using I off . The I off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

The V CC isolation feature ensures that if either V CC input is at GND, then all outputs are in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to V CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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