PCMCIA Dual Card Socket VPP Switching Matrix
MIC2558
Micrel
MIC2558
PCMCIA Dual Card Socket VPP Switching Matrix
General Description
The MIC2558 Dual VPP Matrix s...
Description
MIC2558
Micrel
MIC2558
PCMCIA Dual Card Socket VPP Switching Matrix
General Description
The MIC2558 Dual VPP Matrix switches the four voltages required by PCMCIA (Personal Computer Memory Card International Association) card VPP1 and VPP2 Pins. The MIC2558 provides selectable 0V, 3.3V, 5.0V, or 12.0V (± 5%) from the system power supply to VPP1 and VPP2. Output voltage is selected by two digital inputs per VPP pin. Output current ranges up to 120mA. Four output states, VPP, VCC, high impedance, and active logic low are available, and VPP1 is independent of VPP2. An auxiliary control input determines whether the high impedance (open) state or low logic state is asserted. In standby mode or full operation, the device draws very little quiescent current, typically less than 1µA. The MIC2558 is available in a 14-pin SOIC and a 14-pin plastic DIP.
Features
Complete PCMCIA VPP Switch Matrix in a Single IC Dual Matrix allows independent VPP1 and VPP2 Digital Selection of 0V, VCC, VPP, or High Impedance Output No VPPOUT Overshoot or Switching Transients Break-Before-Make Switching Ultra Low Power Consumption 120mA V
PP
(12V) Output Current
Optional Active Source Clamp for Zero Volt Condition 3.3V or 5V Supply Operation 14-Pin SOIC Package
Part Number Temperature Range –40°C to +85°C –40°C to +85°C Package 14-pin SOIC 14-SO Tape & Reel*
Ordering Information
MIC2558BM MIC2558BM T&R
Applications
PCMCIA VPP Pin Voltage Switch Power Supply Management
* 2,50...
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