TXU0202集成電路（IC）的轉(zhuǎn)換器電平移位器規(guī)格書(shū)PDF中文資料

TXU0202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TXU0202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

? Fully configurable dual-rail design allows each port

to operate from 1.1 V to 5.5 V

? Up to 200 Mbps support for 3.3 V to 5.0 V

? Schmitt-trigger inputs allows for slow and noisy

inputs

? Inputs with integrated static pull-down resistors

prevent channels from floating

? High drive strength (up to 12 mA at 5 V)

? Low power consumption

– 2.5 μA maximum (25°C)

– 6 μA maximum (–40°C to 125°C)

? VCC isolation and VCC disconnect (Ioff-float) feature

– If either VCC input is ;amplt;100 mV or

disconnected, all outputs are disabled and

become high-impedance

? Ioff supports partial-power-down mode operation

? Control logic (OE) with VCC(MIN) circuitry allows for

control from either A or B port

? Pinout compatible with TXB family level shifters

? Available in another variant that supports common

applications: TXU0102

? Operating temperature from –40°C to +125°C

? Latch-up performance exceeds 100 mA per JESD

78, class II

? ESD protection exceeds JESD 22

– 2500-V human-body model

– 1500-V charged-device model

2 Applications

? Eliminate slow or noisy input signals

? Driving indicator LEDs or buzzers

? Debouncing a mechanical switch

? General purpose I/O level shifting

? Push-pull level shifting (UART, SPI, JTAG, and so

forth)

3 Description

TXU0202-Q1 is a 2-bit, dual-supply noninverting fixed

direction voltage level translation device. The Ax pins

are referenced to VCCA logic level, the OE pin can be

referenced to either VCCA or VCCB logic levels, and

the Bx pins are referenced to VCCB logic levels. The A

port can accept input voltages ranging from 1.1 V to

5.5 V, while the B port can also accept input voltages

from 1.1 V to 5.5 V. Fixed direction data transmission

can occur from A to B or B to A when OE is set to

high in reference to either supply. When OE is set to

low, all output pins are in the high-impedance state.

See Device Functional Modes for a summary of the

operation of the control logic.