TXS0102DCTR集成电路（IC）的转换器电平移位器规格书PDF中文资料

TXS0102DCTR属于集成电路（IC）的转换器电平移位器。由德州仪器制造生产的TXS0102DCTR转换器，电平移位器逻辑转换器或电平移位器 IC 可用于在数字逻辑设备之间传递信息，这些设备可在不同/不兼容的供电电压下工作，或可实现不同的信令方式。例如，可以将需要 5 V 电源的数字输出传感器连接到具有 3.3 V I/O 电源的 FPGA，或者在 CMOS 或 TTL 等单端信令方式与 PECL 或 LVDS 等差分技术之间进行转换。

1 Features

• No direction-control signal needed

• Maximum data rates:

– 24Mbps (push pull)

– 2Mbps (open drain)

• Available in the Texas Instruments NanoStar™

integrated circuit package

• 1.65V to 3.6V on A port and 2.3V to 5.5V on B port

(VCCA ≤ VCCB)

• VCC isolation feature: if either VCC input is at GND,

both ports are in the High-Impedance state

• No power-supply sequencing required: either VCCA

or VCCB can be ramped first

• Ioff supports partial-power-down mode operation

• Latch-up performance exceeds 100mA per JESD

78, Class II

• ESD protection exceeds JESD 22:

– A port:

• 2500V Human-Body Model (A114-B)

• 250V Machine Model (A115-A)

• 1500V Charged-Device Model (C101)

– B port:

• 8kV Human-Body Model (A114-B)

• 250V Machine Model (A115-A)

• 1500V Charged-Device Model (C101)

2 Applications

• I2C / SMBus

• UART

• GPIO

3 Description

This two-bit non-inverting translator is a bidirectional

voltage-level translator and can be used to establish

digital switching compatibility between mixed-voltage

systems. It uses two separate configurable powersupply

rails, with the A ports supporting operating

voltages from 1.65V to 3.6V while it tracks the VCCA

supply, and the B ports supporting operating voltages

from 2.3V to 5.5V while it tracks the VCCB supply.

This allows the support of both lower and higher logic

signal levels while providing bidirectional translation

capabilities between any of the 1.8V, 2.5V, 3.3V, and

5V voltage nodes.

When the output-enable (OE) input is low, all I/Os

are placed in the high-impedance state, which

significantly reduces the power-supply quiescent

current consumption.

To put the device in the high-impedance state during

power up or power down, tie OE to GND through

a pulldown resistor; the current-sourcing capability

of the driver determines the minimum value of the

resistor.