The MAX780A provides the power switching and status signals necessary to control two Personal Computer Memory Card International Association (PCMCIA) Release 2.0 card slots. The MAX780A, used in conjunction with a PC Card Interface Digital Controller, forms a complete, minimum component count PCMCIA interface for palmtop and notebook computers.
The MAX780A incorporates two 0V/+5V/+12V/high-impedance power outputs for flash VPP programming, level shifters for power MOSFET control of two separate +3.3V/+5V supplies, and two VPP power-ready status signals. The MAX780A 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.
The MAX780B has all the features of the MAX780A but omits the reference and VPP valid indicators. The MAX780C has all the features of the MAX780A but omits the registers for the digital inputs. The MAX780D omits the reference, the VPP valid indicators, and the digital input registers.
Key Features
Applications/Uses
SSOP Circuit Fits in 0.09in²
Smallest Complete Analog Controller for Two PCMCIA (Release 2.0/JEIDA 4.1) PC Card Sockets
Dual VCC Contols and VPP Outputs
Logic-Compatible with Industry-Standard PCMCIA Digital Controllers:
Intel 82365SL_DF
Fujitsu MB86301
Chips and Technology F8680
Cirrus Logic CL-PD6720
0V/+5V/+12V/High-Impedance VPP Outputs
Internal 1.6Ω VPP Power Switches
Dual Voltage 3.3V/5V VCC Operation
VPP Power-Ready Status Signals
130µA Quiescent Supply Current (3.5µA in Shutdown)
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