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PD672X/30/32/33 — ZV Port Implementation
Application Note 5
1.0 Introduction
The PD6710, PD6722, and PD6729 are single-chip PCMCIA interface controllers capable of
controlling one or two PCMCIA or compact Flash sockets, respectively. They are designed for use
in embedded applications and notebook systems where reduced form factor and low power
consumption are critical design objectives.
Current typical application examples include:
With the PD6710, a complete single-socket PCMCIA solution with power-control circuitry can
occupy less than 1.5 square inches (10 square centimeters) of board space. Similarly, with the
PD6722 and PD6729, a complete dual-socket PCMCIA solution with power-control circuitry can
occupy less than 2 square inches (13 square centimeters) of board space.
The PD67XX controllers are completely compatible with the standards of PCMCIA (Personal
Card Memory International Association) Release 2.0 Standard as well as JEIDA (Japan Electronic
Industry Development Association) Version 4.1 Standard (PD6729 is compliant with the PCI 2.1
Specification. The PD67XX controllers also offer special power-saving features such as Automatic
Low-power Dynamic Mode and Suspend Mode. Both controllers are true mixed-voltage devices
that can operate at +5 volts, +3.3 volts, or a combination of these at various interfaces. The
controllers have full internal buffering and require no additional circuitry to interface to the ISA (or
ISA-like) Bus for the PD6710 and PD6722, and the PCI Bus for PD6729, or to PCMCIA sockets.
Note: In this document, PD67XX represents the PD6710, PD6722, and PD6729.
■ Routers ■ Integrated access devices
■ Access network servers ■ DSLAMs
■ PBXs ■ Terminal servers
■ Vending machines ■ Point of Sale terminals
■ Portable handheld systems ■ Navigation systems
■ Data acquisition systems ■ Measurement equipment
■ Settop boxes