Datasheet > SN74AXC2T245

SN74AXC2T245

更新时间： 2024-11-24 11:11:43

品牌	Logo	应用领域
德州仪器 - TI		总线收发器
页数	文件大小	规格书
32页	573K
描述
具有可配置电压转换和三态输出的双位 2 DIR 引脚双电源总线收发器

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SN74AXC2T245

SCES879 –MAY 2020

SN74AXC2T245 2-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation

and Tri-State Outputs

The SN74AXC2T245 device is designed for

asynchronous communication between data buses.

The device transmits data from the A bus to the B

bus or from the B bus to the A bus, depending on the

logic level of the direction-control inputs (DIRx). The

SN74AXC2T245 device is designed so the control pin

1 Features

•

Fully configurable dual-rail design allows each

port to operate with a power supply range from

0.65 V to 3.6 V

•

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

DIR control input for each channel

(DIR) is referenced to V_CCA

This device is fully specified for partial-power-down

applications using the I_offcurrent. The I_offprotection

circuitry ensures that no excessive current is drawn

from or to an input, output, or combined I/O that is

biased to a specific voltage while the device is

powered down.

Glitch-free power supply sequencing

Up to 380-Mbps support when translating from 1.8

V to 3.3 V

•

V_CCisolation feature

–

If either V_CCinput is below 100 mV, all I/O

outputs are disabled and become high-

impedance

The V_CCisolation feature ensures that if either V_CCA

or V_CCBis less than 100 mV, both I/O ports enter a

high-impedance state by disabling their outputs.

•

I_offsupports partial-power-down mode operation

Compatible with AVC-family level shifters

Glitch-free power supply sequencing allows either

supply rail to be powered on or off in any order while

providing robust power sequencing performance.

Latch-up performance exceeds 100 mA per JESD

78, class II

•

ESD protection exceeds JEDEC JS-001

Device Information⁽¹⁾

–

8000-V Human-body model

PART NUMBER

PACKAGE BODY SIZE (NOM)

1000-V Charged-device model

SN74AXC2T245RSWR

UQFN (10) 1.80 mm x 1.40 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

2 Applications

•

Industrial

Functional Block Diagram

Personal Electronics

Wireless Infrastructure

Building Automation

Point of Sale

One of Two Transceivers

V_CCA

V_CCB

DIRx

Enterprise and communications

3 Description

The SN74AXC2T245 is a two-bit noninverting bus

transceiver that uses two individually configurable

power-supply rails. The device is operational with

both V_CCAand V_CCBsupplies as low as 0.65 V. The A

port is designed to track V_CCA, which accepts any

supply voltage from 0.65 V to 3.6 V. The B port is

designed to track V_CCB, which also accepts any

supply voltage from 0.65 V to 3.6 V. Additionally the

SN74AXC2T245 is compatible with a single-supply

system.

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...32

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与SN74AXC2T245相关器件

型号	品牌	获取价格	描述	数据表
SN74AXC2T245-Q1	TI	获取价格	具有独立 DIR 控制和三态输出的汽车类 2 位双电源电压电平转换
SN74AXC2T245RSWR	TI	获取价格	具有可配置电压转换和三态输出的双位 2 DIR 引脚双电源总线收发器 \| RSW \| 10
SN74AXC2T45	TI	获取价格	具有可配置电压转换的双位双电源总线收发器
SN74AXC2T45DCTR	TI	获取价格	具有可配置电压转换的双位双电源总线收发器 \| DCT \| 8 \| -40 to 125
SN74AXC2T45DCUR	TI	获取价格	具有可配置电压转换的双位双电源总线收发器 \| DCU \| 8 \| -40 to 125
SN74AXC2T45DTMR	TI	获取价格	具有可配置电压转换的双位双电源总线收发器 \| DTM \| 8 \| -40 to 125
SN74AXC2T45-Q1	TI	获取价格	SN74AXC2T45-Q1 2-Bit Translating Transceiver with Configurable Level-Shifting
SN74AXC2T45-Q1_V01	TI	获取价格	SN74AXC2T45-Q1 2-Bit Translating Transceiver with Configurable Level-Shifting
SN74AXC2T45QDCURQ1	TI	获取价格	SN74AXC2T45-Q1 2-Bit Translating Transceiver with Configurable Level-Shifting
SN74AXC4T245	TI	获取价格	4 位双电源总线收发器

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