产品详细信息

Configuration 4:1 Number of channels (#) 2 Power supply voltage - single (V) 5 Protocols Analog Ron (Typ) (Ohms) 3 CON (Typ) (pF) 22 Bandwidth (MHz) 200 Operating temperature range (C) -40 to 85 Features Undershoot protection Input/output continuous current (Max) (mA) 128 Rating Catalog
Configuration 4:1 Number of channels (#) 2 Power supply voltage - single (V) 5 Protocols Analog Ron (Typ) (Ohms) 3 CON (Typ) (pF) 22 Bandwidth (MHz) 200 Operating temperature range (C) -40 to 85 Features Undershoot protection Input/output continuous current (Max) (mA) 128 Rating Catalog
SOIC (D) 16 59 mm² 9.9 x 6 SSOP (DB) 16 33 mm² 5.3 x 6.2 SSOP (DBQ) 16 29 mm² 4.9 x 6 TSSOP (PW) 16 22 mm² 4.4 x 5 VQFN (RGY) 16 14 mm² 4 x 3.5
  • SN74CBT3253C Functionally Identical to Industry-Standard ’3253 Function
  • Undershoot Protection for Off-Isolation on A and B Ports up to -2 V
  • Bidirectional Data Flow, With Near-Zero Propagation Delay
  • Low ON-State Resistance (ron) Characteristics (ron = 3 Typical)
  • Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.5 pF Typical)
  • Data and Control Inputs Provide Undershoot Clamp Diodes
  • Low Power Consumption (ICC = 3 µA Max)
  • VCC Operating Range From 4 V to 5.5 V
  • Data I/Os Support 0 to 5-V Signaling Levels (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
  • Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Performance Tested Per JESD 22
    • 2000-V Human-Body Model (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Supports I2C Bus Expansion
  • Supports Both Digital and Analog Applications: USB Interface, Bus Isolation, Low-Distortion Signal Gating

  • SN74CBT3253C Functionally Identical to Industry-Standard ’3253 Function
  • Undershoot Protection for Off-Isolation on A and B Ports up to -2 V
  • Bidirectional Data Flow, With Near-Zero Propagation Delay
  • Low ON-State Resistance (ron) Characteristics (ron = 3 Typical)
  • Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.5 pF Typical)
  • Data and Control Inputs Provide Undershoot Clamp Diodes
  • Low Power Consumption (ICC = 3 µA Max)
  • VCC Operating Range From 4 V to 5.5 V
  • Data I/Os Support 0 to 5-V Signaling Levels (0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
  • Control Inputs Can Be Driven by TTL or 5-V/3.3-V CMOS Outputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Performance Tested Per JESD 22
    • 2000-V Human-Body Model (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Supports I2C Bus Expansion
  • Supports Both Digital and Analog Applications: USB Interface, Bus Isolation, Low-Distortion Signal Gating

The SN74CBT3253C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT3253C provides protection for undershoot up to -2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.

The SN74CBT3253C is organized as two 1-of-4 multiplexer/demultiplexers with separate output-enable (1OE, 2OE) inputs. The select (S0, S1) inputs control the data path of each multiplexer/demultiplexer. When OE is low, the associated multiplexer/demultiplexer is enabled, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the associated multiplexer/demultiplexer is disabled, and a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN74CBT3253C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT3253C provides protection for undershoot up to -2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.

The SN74CBT3253C is organized as two 1-of-4 multiplexer/demultiplexers with separate output-enable (1OE, 2OE) inputs. The select (S0, S1) inputs control the data path of each multiplexer/demultiplexer. When OE is low, the associated multiplexer/demultiplexer is enabled, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is high, the associated multiplexer/demultiplexer is disabled, and a high-impedance state exists between the A and B ports.

This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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类型 项目标题 下载最新的英语版本 日期
* 数据表 SN74CBT3253C 数据表 (Rev. B) 25 Jan 2007
应用手册 选择正确的德州仪器 (TI) 信号开关 (Rev. E) PDF | HTML 下载英文版本 (Rev.E) PDF | HTML 05 Aug 2022
应用手册 CBT-C、CB3T 和 CB3Q 信号开关系列 (Rev. C) PDF | HTML 下载英文版本 (Rev.C) PDF | HTML 11 Mar 2022
应用手册 多路复用器和信号开关词汇表 (Rev. B) 下载英文版本 (Rev.B) PDF | HTML 11 Mar 2022
应用手册 利用关断保护信号开关消除电源时序 (Rev. C) 下载英文版本 (Rev.C) PDF | HTML 21 Oct 2021
选择指南 Little Logic Guide 2014 (Rev. G) 06 Jul 2018
选择指南 Logic Guide (Rev. AB) 12 Jun 2017
应用手册 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
选择指南 逻辑器件指南 2014 (Rev. AA) 下载最新的英文版本 (Rev.AB) 17 Nov 2014
选择指南 小尺寸逻辑器件指南 (Rev. E) 下载最新的英文版本 (Rev.G) 16 Jul 2012
用户指南 LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
更多文献资料 Digital Bus Switch Selection Guide (Rev. A) 10 Nov 2004
应用手册 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
用户指南 Signal Switch Data Book (Rev. A) 14 Nov 2003
更多文献资料 Logic Cross-Reference (Rev. A) 07 Oct 2003
应用手册 Bus FET Switch Solutions for Live Insertion Applications 07 Feb 2003

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SN74CBT3253C IBIS Model

SCDM034.ZIP (26 KB) - IBIS Model
封装 引脚数 下载
SOIC (D) 16 了解详情
SSOP (DB) 16 了解详情
SSOP (DBQ) 16 了解详情
TSSOP (PW) 16 了解详情
VQFN (RGY) 16 了解详情

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