SN74AUCH16244中文资料具有总线保持和三态输出的 16 通道、0.8V 至 2.7V 高速缓冲器数据手册TI规格书

描述 Description

This 16-bit buffer/driver is operational at 0.8-V to 2.7-V VCC, but is designed specifically for 1.65-V to 1.95-V VCC operation.

The SN74AUCH16244 is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and symmetrical active-low output-enable (OE)\\ inputs.

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.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.

特性 Features

• Member of the Texas Instruments Widebus™ Family
• Ioff Supports Partial-Power-Down Mode Operation
• Max tpd of 1.8 ns at 1.8 V
• ±8-mA Output Drive at 1.8 V
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• 2000-V Human-Body Model (A114-A)
• 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.