pic17cxx外部存储器驱动

This Technical Brief shows how to connect a
PIC17CXX device to external memory. It also provides
instructions and calculations to help determine which
speeds of SRAM work with which frequency crystal
TB005
Using External RAM with PIC17CXX Devices
TABLE 1: INTERNAL/EXTERNAL MEMORY
Author: Rodger Richey
Advanced Microcontroller Address
Device Size (Words)
and Technology Division Range
2048 0x0000 -
Inte