SN74ALVCH162334VR集成电路（IC）的通用总线功能规格书PDF中文资料

FEATURES

· Member of the Texas Instruments Widebus™

Family

· EPIC™ (Enhanced-Performance Implanted

CMOS) Submicron Process

· Output Port Has Equivalent 26-W Series

Resistors, So No External Resistors Are

Required

· Designed to Comply With JEDEC 168-Pin and

200-Pin SDRAM Buffered DIMM Specification

· ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

· Latch-Up Performance Exceeds 250 mA Per

JESD 17

· Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

· Package Options Include Plastic Shrink

Small-Outline (DL), Thin Shrink Small-Outline

(DGG), and Thin Very Small-Outline (DGV)

Packages

DESCRIPTION

This 16-bit universal bus driver is designed for 1.65-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 output port includes equivalent 26-W series 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 is provided to hold unused or floating data inputs at a valid logic level.

The SN74ALVCH162334 is characterized for operation from -40°C to 85°C.