TXS0104E集成电路（IC）的转换器电平移位器规格书PDF中文资料

TXS0104E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TXS0104E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

• Qualified for automotive applications

• AEC-Q100 qualified with the following results:

– Device temperature grade 1: –40°C to +125°C

ambient operating temperature range

– Device HBM ESD Classification Level 2

– Device CDM ESD Classification Level C6

• No direction-control signal required

• Maximum data rates:

– 24 Mbps maximum (push pull)

– 2 Mbps (open drain)

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

port (VCCA ≤ VCCB)

• No power-supply sequencing required—VCCA or

VCCB can be ramped first

• ESD protection exceeds JESD 22:

– A Port

• 2000-V Human-Body Model (A114-B)

• 1000-V Charged-Device Model (C101)

– B Port

• 15-kV Human-Body Model (A114-B)

• 1000-V Charged-Device Model (C101)

• IEC 61000-4-2 ESD (B port)

– ±8-kV Contact Discharge

– ±10-kV Air-Gap Discharge

2 Applications

• Automotive infotainment, advance driver

assistance systems (ADAS)

• Isolates and level translates between main

processor and peripheral modules

• I2C or 1-wire voltage-level translation

3 Description

The TXS0104E-Q1 device connects an incompatible

logic communication from chip-to-chip due to voltage

mismatch. This auto-direction translator can be

conveniently used to bridge the gap without the

need of direction control from the host. Each channel

can be mixed and matched with different output

types (open-drain or push-pull) and mixed data flows

(transmit or receive) without intervention from the

host. This 4-bit noninverting translator uses two

separate configurable power-supply rails. The A and

B ports are designed to track VCCA and VCCB

respectively. The VCCB pin accepts any supply voltage

from 2.3 V to 5.5 V while the VCCA pin accepts any

supply voltage from 1.65 V to 3.6 V such that VCCA

is less than or equal to VCCB. This tracking allows

for low-voltage bidirectional translation between any

of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.

When the output-enable (OE) input is low, all outputs

are placed in the high-impedance state.

The TXS0104E-Q1 device is designed so that the OE

input circuit is supplied by VCCA.

To be in the high-impedance state during power up

or power down, the OE pin must be tied to the GND

pin through a pull down resistor; the minimum value

of the resistor is determined by the current-sourcing

capability of the driver.