Datasheet > TCA39306

TCA39306

更新时间： 2024-11-22 02:51:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
29页	1831K
描述
TCA39306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator

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TCA39306 数据手册

TCA39306

SCPS274A – JUNE 2021 – REVISED AUGUST 2021

TCA39306 Dual Bidirectional I²C Bus and SMBus Voltage-Level Translator

1 Features

2 Applications

•

2-Bit bidirectional translator for SDA and SCL lines

in mixed-mode I²C applications

•

I²C, SMBus, PMBus, MDIO, UART, low-speed

SDIO, GPIO, and other two-signal interfaces

Servers

Routers (telecom switching equipment)

Personal computers

•

Standard-mode, fast-mode, and fast-mode plus

•

I²C and SMBus compatible

•

I³C compatible (12.5 MHz supported)

Allows voltage-level translation between

– 0.9-V V_REF1and 1.8-V, 2.5-V, 3.3-V,

or 5-V V_REF2

Industrial automation

3 Description

The TCA39306 is a dual bidirectional voltage-level

translator compatible with I²C, SMBus, and I³C with

an enable (EN) input, and is operational from 0.9-V to

– 1.2-V V_REF1and 1.8-V, 2.5-V, 3.3-V,

or 5-V V_REF2

– 1.8-V V_REF1and 2.5-V, 3.3-V, or 5-V V_REF2

– 2.5-V V_REF1and 3.3-V or 5-V V_REF2

– 3.3-V V_REF1and 5-V V_REF2

3.3-V V_REF1and 1.8-V to 5.5-V V_REF2

The device allows bidirectional voltage translations

between 0.85 V and 5 V, without the use of a

•

Provides bidirectional voltage translation with no

direction Pin

direction pin. The low ON-state resistance (R_ON

)

Low ON-state resistance between input and output

ports provides less signal distortion

Open-drain I²C I/O ports (SCL1, SDA1, SCL2, and

SDA2)

of the switch allows connections to be made with

minimal propagation delay. When EN is high, the

translator switch is ON, and the SCL1 and SDA1

I/O are connected to the SCL2 and SDA2 I/O,

respectively, allowing bidirectional data flow between

ports. When EN is low, the translator switch is off, and

a high-impedance state exists between ports.

5-V Tolerant I²C I/O ports to support mixed-mode

signal operation

High-impedance SCL1, SDA1, SCL2, and SDA2

pins for EN = Low

In addition to voltage translation, the TCA39306 can

be used to isolate a higher speed bus from a lower

speed bus by controlling the EN pin to disconnect the

slower bus during fast-mode communication.

•

Lockup-free operation for isolation when EN = Low

Flow-through pinout for ease of printed-circuit-

board trace routing

ESD Protection Exceeds JESD 22

– 2000-V human-body model (A114-A)

– 1000-V charged-device model (C101)

•

Device Information

PART NUMBER

PACKAGE⁽¹⁾

VSSOP (8)

SOT-23 (8)⁽²⁾

X2SON (8)

BODY SIZE (NOM)

2.30 mm x 2.00 mm

2.90 mm x 1.60 mm

1.35 mm x 0.80 mm

TCA39306

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

the end of the datasheet.

(2) Product Preview

200 kꢀ

VREF1

VREF2

I2C, SMBus, or

I3C controller

TCA39306

Responder

devices

SCL1

SDA1

SCL2

SDA2

GND

Simplified Application 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.

12 3 4 5 6 7...29

中文翻译

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与TCA39306相关器件

型号	品牌	获取价格	描述	数据表
TCA39306_V01	TI	获取价格	TCA39306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator
TCA39306DCUR	TI	获取价格	TCA39306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator
TCA39306DCURQ1	TI	获取价格	汽车类 FM+ I²C 总线和 SMBus 电压转换器 \| DCU \| 8 \| -40 t
TCA39306DDFR	TI	获取价格	FM+ I²C 总线和 SMBus 电压转换器 \| DDF \| 8 \| -40 to 12
TCA39306DTMR	TI	获取价格	TCA39306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator
TCA39306-Q1	TI	获取价格	TCA39306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator
TCA39416	TI	获取价格	具有上升时间加速器的超低电压 I3C 转换器
TCA39416DDFR	TI	获取价格	具有上升时间加速器的超低电压 I3C 转换器 \| DDF \| 8 \| -40 to 125
TCA4027036A	PLETRONICS	获取价格	TCVCXO Oscillator
TCA4027036AA005000-10M	PLETRONICS	获取价格	Clipped Sine Output Oscillator, 10MHz Nom, ROHS COMPLIANT, CERAMIC, LCC-4

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