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MIC2557 - PCMCIA Card Socket VPP Switching Matrix

General Description

The MIC2557 switches the four voltages required by PCMCIA (Personal Computer Memory Card International Association) card VPP Pins.

The MIC2557 provides selectable 0V, 3.3V, 5.0V, or 12.0V (± 5%) from the system power supply to VPP1 or VPP2.

Output voltage is selected by two digital inputs.

Key Features

  • Complete PCMCIA V Switch Matrix in a Single IC PP No External Components Required Digital Selection of 0V, VCC, VPP, or High Imped.
  • ance Output No VPP OUT Overshoot or Switching Transients Break-Before-Make Switching Low Power Consumption 120mA V (12V) Output Current PP Optional Active Source Clamp for Zero Volt Condition 3.3V or 5V Supply Operation 8-Pin SOIC Package.

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Datasheet Details

Part number MIC2557
Manufacturer Micrel Semiconductor
File Size 51.53 KB
Description PCMCIA Card Socket VPP Switching Matrix
Datasheet download datasheet MIC2557 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MIC2557 Micrel MIC2557 PCMCIA Card Socket VPP Switching Matrix General Description The MIC2557 switches the four voltages required by PCMCIA (Personal Computer Memory Card International Association) card VPP Pins. The MIC2557 provides selectable 0V, 3.3V, 5.0V, or 12.0V (± 5%) from the system power supply to VPP1 or VPP2. Output voltage is selected by two digital inputs. Output current ranges up to 120mA. Four control states, VPP, VCC, high impedance, and active logic low are available. An auxiliary control input determines whether the high impedance (open) state or low logic state is asserted. In either quiescent mode or full operation, the device draws very little current, typically less than 1µA. The MIC2557 is available in an 8-pin SOIC and an 8-pin plastic DIP.