Compactflash Bus Interface Chip 114-Pin BGA MICROSTAR T/R

The CF4320H is a CompactFlash (CF) interface device designed to provide a single-chip solution for CF card interfaces. Separate VCC 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 that may operate from 3.3 V down to 1.65 V, and CF cards that 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 CF specification revisions 1.4 and 2.0. 

±15-kV Human-Body Model (HBM) ESD Protection on Card Side

Logic-Level Translation Between 1.8-V, 2.5-V, 3.3-V, and 5-V Supplies

Integrated Card-Detect Circuitry

Integrated Pullup/Pulldown Resistors Save Board Space and Cost

Matched Pinout With CompactFlash (CF) Connector Pin Configurations to Optimize PCB Layout

Input-Disable Feature Allows Floating Input Conditions

I_off Supports Partial-Power-Down Mode Operation

Offered in 114-Ball LFBGA Package for Space-Constrained Applications

Latch-Up Performance Exceeds 250 mA Per JESD 17

ESD Performance

• ±15-kV HBM
• ±4-kV IEC61000-4-2, Contact Discharge
  (Latch-Up Immune)

GPS PDAs

PDA Phones

Industrial PDAs

High-End Digital Cameras