TXB0104集成電路（IC）的轉(zhuǎn)換器電平移位器規(guī)格書PDF中文資料

TXB0104屬于集成電路（IC）的轉(zhuǎn)換器電平移位器。由德州儀器制造生產(chǎn)的TXB0104轉(zhuǎn)換器，電平移位器邏輯轉(zhuǎn)換器或電平移位器 IC 可用于在數(shù)字邏輯設(shè)備之間傳遞信息，這些設(shè)備可在不同/不兼容的供電電壓下工作，或可實(shí)現(xiàn)不同的信令方式。例如，可以將需要 5 V 電源的數(shù)字輸出傳感器連接到具有 3.3 V I/O 電源的 FPGA，或者在 CMOS 或 TTL 等單端信令方式與 PECL 或 LVDS 等差分技術(shù)之間進(jìn)行轉(zhuǎn)換。

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

? 1.2 V to 3.6 V on A Port and 1.65 V to 5.5 V on B

Port (VCCA ≤ VCCB)

? VCC Isolation Feature – If Either VCC Input is at

GND, All Outputs are in the High-Impedance State

? OE Input Circuit Referenced to VCCA

? Ioff Supports Partial-Power-Down Mode Operation

? Latch-Up Performance Exceeds 100 mA Per JESD

78, Class II

? ESD Protection Exceeds JESD 22

– A port

? ±2500-V Human-Body Model (A114-B)

? ±1000-V Charged-Device Model (C101)

– B port

? ±15000-V Human-Body Model (A114-B)

? ±1000-V Charged-Device Model (C101)

2 Applications

? Automotive infotainment

? Advanced Driver Assistance System (ADAS)

? Telematics

3 Description

Voltage-level translators address the challenges

posed by simultaneous use of different supply-voltage

levels on the same circuit board. This 4-bit noninverting

translator uses two separate configurable

power-supply rails. The A port is designed to track

VCCA. VCCA accepts any supply voltage from 1.2

V to 3.6 V. The B port is designed to track VCCB.

VCCB accepts any supply voltage from 1.65 V to 5.5

V. This allows for universal low-voltage bidirectional

translation between any of the 1.2-V, 1.5-V, 1.8-V,

2.5-V, 3.3-V, and 5-V voltage nodes. VCCA should not

exceed VCCB.

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

outputs are placed in the high-impedance state. To

ensure the high-impedance state during power up or

power down, OE should be tied to GND through a

pulldown resistor; the minimum value of the resistor

is determined by the current-sourcing capability of the

driver.

The TXB0104 is designed so that the OE input circuit

is supplied by VCCA.

This device is fully specified for partial-power-down

applications using Ioff. The Ioff circuitry disables

the outputs, preventing damaging current backflow

through the device when it is powered down.