Datasheet > SN74AXC4T245_V01

SN74AXC4T245_V01

更新时间： 2024-11-24 02:50:55

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德州仪器 - TI		/
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SN74AXC4T245 Four-Bit Bus Transceiver with Configurable Voltage Translation and Tri-State Outputs

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SN74AXC4T245_V01 数据手册

SN74AXC4T245

_{SCES877A – DECEMBER 2018 –}S_REN_V7_IS4_EA_DX_JC_UL4_YT₂2₀4₂5₀

SCES877A – DECEMBER 2018 – REVISED JULY 2020

www.ti.com

SN74AXC4T245 Four-Bit Bus Transceiver with Configurable Voltage Translation

and Tri-State Outputs

The SN74AXC4T245 device is designed for

asynchronous communication between data buses.

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

Multiple Direction Control Pins to Allow

Simultaneous Up and Down Translation

Glitch-Free Power Supply Sequencing

Up to 380 Mbps Support When Translating from

1.8 V to 3.3 V

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 (1DIR and 2DIR).

The output-enable inputs (1 OE and 2 OE) are used

to disable the outputs so the buses are effectively

isolated. The SN74AXC4T245 device is designed so

the control pins (xDIR and x OE) are referenced to

•

V_CCA

To ensure the high-impedance state of the level shifter

I/Os during power up or power down, the x OE pins

should be tied to V_CCAthrough a pullup resistor.

•

V_CCIsolation Feature

– If Either V_CCInput is Below 100 mV, All I/Os

Outputs are Disabled and Become High-

Impedance

I_offSupports Partial-Power-Down Mode Operation

Compatible With AVC Family Level Shifters

Latch-Up Performance Exceeds 100 mA Per JESD

78, Class II

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.

•

ESD Protection Exceeds JESD 22

– 8000-V Human-Body Model

– 1000-V Charged-Device Model

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.

Glitch-Free power supply sequencing allows either

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

providing robust power sequencing performance.

2 Applications

•

Enterprise and Communications

Industrial

Personal Electronics

Wireless Infrastructure

Building Automation

Point of Sale

Device Information

PART NUMBER

SN74AXC4T245PW

SN74AXC4T245BQB

PACKAGE⁽¹⁾

BODY SIZE (NOM)

TSSOP (16)

5.00 mm x 4.40 mm

WQFN (16)

2.50 mm x 3.50 mm

2.60 mm x 1.80 mm

3 Description

SN74AXC4T245RSV UQFN (16)

The SN74AXC4T245 is a four-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 SN74AXC4T245

is compatible with a single-supply system.

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

the end of the data sheet.

One of Two Transceiver Pairs

V_CCA

V_CCB

xDIR

xOE

xB1

xB2

xA1

xA2

Functional Block Diagram

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.

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Product Folder Links: SN74AXC4T245

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与SN74AXC4T245_V01相关器件

型号	品牌	获取价格	描述	数据表
SN74AXC4T245BQB	TI	获取价格	SN74AXC4T245 Four-Bit Bus Transceiver with Configurable Voltage Translation and Tri-State
SN74AXC4T245BQB-Q1	TI	获取价格	SN74AXC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver With Configurable Voltage Tra
SN74AXC4T245BQBR	TI	获取价格	SN74AXC4T245 Four-Bit Bus Transceiver with Configurable Voltage Translation and Tri-State
SN74AXC4T245PW-Q1	TI	获取价格	SN74AXC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver With Configurable Voltage Tra
SN74AXC4T245PWR	TI	获取价格	4 位双电源总线收发器 \| PW \| 16 \| -40 to 125
SN74AXC4T245-Q1	TI	获取价格	具有可配置电压转换和三态输出的汽车类 4 位双电源总线收发器
SN74AXC4T245-Q1_V03	TI	获取价格	SN74AXC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver With Configurable Voltage Tra
SN74AXC4T245-Q1_V04	TI	获取价格	SN74AXC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver With Configurable Voltage Tra
SN74AXC4T245QPWRQ1	TI	获取价格	具有可配置电压转换和三态输出的汽车类 4 位双电源总线收发器 \| PW \| 16 \| -4
SN74AXC4T245RSV-Q1	TI	获取价格	SN74AXC4T245-Q1 Automotive 4-Bit Dual-Supply Bus Transceiver With Configurable Voltage Tra

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