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說明

This CompactFlash™ (CF) interface chip is designed to provide a single-chip solution for CF card interfaces. Separate V_CC rails for the system bus side and the CF connector bus side allow voltage-level shifting. This is helpful for interfacing between a core chipset, which may operate from 3.3 V down to 1.65 V, and CF cards, which operate from 3.3-V or 5-V supply voltages. All the input buffers feature the input-disable function, which allows conditional floating input signals. The input, output, and I/O buffers on the CF connector side have been defined to comply with CF+ and CompactFlash specification revisions 1.4 and 2.0.

This device has 16-bit data lines and 24-bit address/command lines. CD1\ and CD2\ have internal pullup resistors to pull them to a high logic state if there is no card in the CF slot.

特性

• Member of the Texas Instruments Widebus+™ Family
• Designed to Optimize Power Savings in Portable Applications
• 1.65-V to 5.5-V Level Translation Using Dual Supplies
• Matched Pinout With CompactFlash™ (CF) Connector Pin Configurations to Optimize PCB Layout
• Input-Disable Feature Allows Floating Input Conditions
• Ioff Supports Partial-Power-Down Mode Operation
• Latch-Up Performance Exceeds 250 mA Per JESD 17
• ESD
  • 15-kV Human-Body Model
  • ±4-kV IEC61000-4-2, Contact Discharge (Latch-Up Immune)

Widebus+ is a trademark of Texas Instruments.
CompactFlash is a trademark of Sandisk Corporation.