MIC2563A-0YSM

Overview

The MIC2563A-0YSM is a dual-slot PCMCIA/CardBus socket power controller designed to manage VCC and VPP supply pins. It switches between three VCC voltages (0V, 3.3V, 5.0V) and five VPP states (OFF, 0V, 3.3V, 5V, 12.0V). The device provides up to 1A output current for VCC and 250mA for VPP. It features self-biased switches requiring no +12V bias for 3.3V or 5V outputs. Key electrical protections include output current limiting, overtemperature shutdown, and full cross-conduction lockout. Standby static current is typically 0.3µA. The component is housed in a standard 28-pin SSOP package.

Feature Summary

• Integrated control of dual PC Card/PCMCIA slots within a single package
• Self-biased high-current VCC and medium-current VPP switches eliminating need for external 12V bias
• Comprehensive protection mechanisms including current limiting, thermal shutdown, and cross-conduction lockout
• Ultra-low standby current consumption for extended battery life in portable applications

Applications

• Dual-slot PCMCIA and CardBus socket power management
• Portable data collection systems
• Machine control data input systems
• Barcode data collection devices

Procurement Notes

Verify the specific ordering suffix matches the required package variant and environmental compliance status. Confirm that the '0Y' designation aligns with the intended lead-free or standard SSOP configuration as defined by Microchip Technology. Ensure compatibility with existing system logic controllers before procurement. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and revision level.

Selection Notes

Select this component when managing dual PCMCIA or CardBus sockets requiring independent voltage switching for VCC and VPP lines. It is suitable for designs needing integrated protection against cross-conduction and thermal events without external bias supplies. Consider the 28-pin SSOP footprint constraints and the requirement for digital input control signals compatible with standard PC card logic controllers.

Part Context

The MIC2563A-0YSM is an enhanced version of the MIC2563, offering lower on-resistance and added VCC pull-down clamping in shutdown mode. Manufactured by Microchip Technology, it serves as a dedicated power distribution solution for legacy expansion interfaces. The device simplifies board design by integrating multiple switch matrices and protection circuits into one compact integrated circuit.

Replacement Considerations

The base MIC2563 is a related predecessor but lacks the improved on-resistance and VCC pull-down clamp features found in the MIC2563A series. Verify if the non-A variant meets the specific low-resistance requirements of the target application.