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SN74ABTE16245

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具有三态输出的 16 位入射波开关总线收发器

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数据表

SN74ABTE16245

正在供货
数据表 立即订购

产品详情

Number of channels 16 IOL (max) (mA) 90 IOH (max) (mA) -90 Input type TTL Output type TTL Features Balanced outputs, Bias Vcc, Bus-hold, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family ABTE Rating Catalog Operating temperature range (°C) -40 to 85
Number of channels 16 IOL (max) (mA) 90 IOH (max) (mA) -90 Input type TTL Output type TTL Features Balanced outputs, Bias Vcc, Bus-hold, Over-voltage tolerant inputs, Partial power down (Ioff), Very high speed (tpd 5-10ns) Technology family ABTE Rating Catalog Operating temperature range (°C) -40 to 85
TSSOP (DGG) 48 101.25 mm² (12.5 mm × 8.1 mm) SSOP (DL) 48 164.358 mm² (15.88 mm × 10.35 mm)
  • Members of the Texas Instruments Widebus™ Family
  • Support the VME64 ETL Specification
  • Reduced, TTL-Compatible, Input Threshold Range
  • High-Drive Outputs (IOH = –60 mA, IOL = 90 mA) Support 25- Incident-Wave Switching
  • VCC BIAS Pin Minimizes Signal Distortion During Live Insertion
  • Internal Pullup Resistor on (OE)\ Keeps Outputs in High-Impedance State During Power Up or Power Down
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Equivalent 25- Series Damping Resistor on B Port
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors

Widebus is a trademark of Texas Instruments.
  • Members of the Texas Instruments Widebus™ Family
  • Support the VME64 ETL Specification
  • Reduced, TTL-Compatible, Input Threshold Range
  • High-Drive Outputs (IOH = –60 mA, IOL = 90 mA) Support 25- Incident-Wave Switching
  • VCC BIAS Pin Minimizes Signal Distortion During Live Insertion
  • Internal Pullup Resistor on (OE)\ Keeps Outputs in High-Impedance State During Power Up or Power Down
  • Distributed VCC and GND Pins Minimize High-Speed Switching Noise
  • Equivalent 25- Series Damping Resistor on B Port
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors

Widebus is a trademark of Texas Instruments.

The ’ABTE16245 devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated. When (OE)\ is low, the device is active.

The B port has an equivalent 25- series output resistor to reduce ringing. Active bus-hold inputs also are on the B port to hold unused or floating inputs at a valid logic level.

The A port provides for the precharging of the outputs via VCCBIAS, which establishes a voltage between 1.3 V and 1.7 V when VCC is not connected.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

The ’ABTE16245 devices are 16-bit (dual-octal) noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so that the buses are effectively isolated. When (OE)\ is low, the device is active.

The B port has an equivalent 25- series output resistor to reduce ringing. Active bus-hold inputs also are on the B port to hold unused or floating inputs at a valid logic level.

The A port provides for the precharging of the outputs via VCCBIAS, which establishes a voltage between 1.3 V and 1.7 V when VCC is not connected.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.
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* 数据表 16-Bit Incident-Wave Switching Bus Transceivers With 3-State Outputs 数据表 (Rev. J) 2001-12-13

设计与开发

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仿真模型

SN74ABTE16245 IBIS Model (Rev. A)

SCBM063 (147 KB) - IBIS 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
TSSOP (DGG) 48 Ultra Librarian
SSOP (DL) 48 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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