SN74ALVC164245 - 具有三态输出的 16 位 2.5V 至 3.3V/3.3V 至 5V 电平转换收发器

SN74ALVC164245是TI德州仪器公司的一款应用特定电压转换产品，SN74ALVC164245是具有三态输出的 16 位 2.5V 至 3.3V/3.3V 至 5V 电平转换收发器，本站介绍了SN74ALVC164245的封装应用图解、特点和优点、功能等，并给出了与SN74ALVC164245相关的TI元器件型号供参考。

SN74ALVC164245 - 具有三态输出的 16 位 2.5V 至 3.3V/3.3V 至 5V 电平转换收发器 - 应用特定电压转换 - 电压电平转换 - 德州仪器

产品描述

This 16-bit (dual-octal) noninverting bus transceiver contains two separate supply rails. B port has VCCB, which is set to operate at 3.3 V and 5 V. A port has VCCA, which is set to operate at 2.5 V and 3.3 V. This allows for translation from a 2.5-V to a 3.3-V environment, and vice versa, or from a 3.3-V to a 5-V environment, and vice versa.

The SN74ALVC164245 is designed for asynchronous communication between data buses. The control cirucitry (1DIR, 2DIR, 1OE\, and 2OE\) is powered by VCCA.

To ensure the high-impedance state during power up or power down, the output-enable (OE)\ input 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 logic levels of the direction-control (DIR) input and the output-enable (OE)\ input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

产品特性

Member of the Texas Instruments Widebus™ Family
Max tpd of 5.8 ns at 3.3 V
±24-mA Output Drive at 3.3 V
Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
Latch-Up Performance Exceeds 250 mA Per JESD 17

NOTE: New and improved versions of the SN74ALVC164245 are available. The new part numbers are SN74LVC16T245 and SN74LVCH16T245 and should be considered for new designs. Widebus is a trademark of Texas Instruments.

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