Power Switch 24-Pin SSOP

The MAX780B provides the power switching and status signals necessary to control two Personal Computer Memory Card International Association (PCMCIA) Release 2.0 card slots. The MAX780B, used in conjunction with a PC Card Interface Digital Controller, forms a complete, minimum component count PCMCIA interface for palmtop and notebook computers. The MAX780B incorporates level shifters for power MOSFET control of two separate +3.3V/+5V supplies. The MAX780B may be directly connected to the control outputs from a PCMCIA digital controller, or may be configured to use internal edge-triggered registers for connection to the CPU data bus.

• SSOP Circuit Fits in 0.09in²
• Smallest Complete Analog Controller for Two PCMCIA (Release 2.0/JEIDA 4.1) PC Card Sockets
• Logic-Compatible with Industry-Standard PCMCIA Digital Controllers:
  • Intel 82365SL_DF
  • Fujitsu MB86301
  • Chips and Technology F8680 Cirrus Logic CL-PD6720
• Internal 1.6? VPP Power Switches
• Dual Voltage 3.3V/5V Vcc Operation
• 130µA Quiescent Supply Current (3.5µA in Shutdown)
• Break-Before-Make Switching