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


Package | PIN: ZKF | 114
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $4.54
10-24 $4.08
25-99 $3.81
100-249 $3.42
250-499 $3.19
500-749 $2.78
750-999 $2.40
1000+ $2.35


  • ±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
  • Ioff 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

Texas Instruments  CF4320HZKFR

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.