CF4320H - CompactFlash Bus-interface Chip with ESD Protection, Translation, and Card-Detect Circuitry

The CF4320H is a CompactFlash™ (CF) interface device 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 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.

Products containing the "CF4320H" keyword are: CF4320H , CF4320HGKFR , CF4320HGKFR , CF4320HGKFR/CF4320HZKFR , CF4320HZKFR , CF4320HZKFR

• ±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)

TARGET APPLICATIONS

• GPS PDAs
• PDA Phones
• Industrial PDAs
• High-End Digital Cameras