SN74ALVCF162834 - 具有三态输出的 3.3V CMOS 18 位通用总线驱动器

SN74ALVCF162834是TI德州仪器公司的一款通用总线驱动器(UBD)产品，SN74ALVCF162834是具有三态输出的 3.3V CMOS 18 位通用总线驱动器，本站介绍了SN74ALVCF162834的封装应用图解、特点和优点、功能等，并给出了与SN74ALVCF162834相关的TI元器件型号供参考。

SN74ALVCF162834 - 具有三态输出的 3.3V CMOS 18 位通用总线驱动器 - 通用总线驱动器(UBD) - 通用总线功能 - 德州仪器

产品描述

This 18-bit universal bus driver is designed for 2.3-V to 3.6-V VCC operation.

Data flow from A to Y is controlled by the output-enable (OE)\ input. The device operates in the transparent mode when the latch-enable (LE)\ input is low. When LE\ is high, the A data is latched if the clock (CLK) input is held at a high or low logic level. If LE\ is high, the A data is stored in the latch/flip-flop on the low-to-high transition of CLK. When OE\ is high, the outputs are in the high-impedance state.

The ALVCF162834 has series damping resistors in the device output structure that reduce switching noise in 128-MB and 256-MB SDRAM modules. Designed with a drive capability of ±18 mA, this device is a midway drive between the ALVC162834 (±12 mA) and ALVC16834 (±24 mA).

The SN74ALVCF162834 is a faster version of the SN74ALVC162834. It is suitable for PC133 applications, particularly for SDRAM modules clocked at 133 MHz.

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.

产品特性

Member of the Texas Instruments Widebus™ Family
Ideal for Use in PC133 Register DIMM
Typical Output Skew . . . <250 ps
VCC = 3.3 V ± 0.3 V . . . Normal Range
VCC = 2.7 V to 3.6 V . . . Extended Range
VCC = 2.5 V ± 0.2 V
Rail-to-Rail Output Swing for Increased Noise Margin
Balanced Output Drivers . . . ±18 mA
Low Switching Noise
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)

Widebus is a trademark of Texas Instruments.

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