SN74ALVCH162827中文资料具有总线保持和三态输出的 20 通道、1.65V 至 3.6V 缓冲器数据手册TI规格书

描述 Description

This 20-bit noninverting buffer/driver is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH162827 is composed of two 10-bit sections with separate output-enable signals. For either 10-bit buffer section, the two output-enable (1OE1\\ and 1OE2\\ or 2OE1\\ and 2OE2\\) inputs must both be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 10-bit buffer section are in the high-impedance state.

The outputs, which are designed to sink up to 12 mA, include equivalent 26- resistors to reduce overshoot and undershoot.

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.

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.

特性 Features

• Member of the Texas Instruments Widebus™ Family
• Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
• ESD Protection Exceeds JESD 22
• 200-V Machine Model (A115-A)
• 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments Incorporated.