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NEe Microcomputers, Inc.
INPUT/OUTPUT EXPANDER FOR fLP 08048/8748/8035
NEe
f'PD8243
DEseR IPTION
The IlPD8243 input/output expander is directly compatible with the IlPD8048 family of single-chip microcomputers. Using NMOS technology the IlPD8243 provides high drive capabilities while requiring only a single +5V supply voltage.
The IlPD8243 interfaces to the IlPD8048 family through a 4-bit I/O port and offers four 4-bit bi-directional static I/O ports. The ease of expansion allows for multiple IlPD8243's to be added using the bus port.
The bi-directional I/O ports of the IlPD8243 act as an extension of the I/O capabilities of the IlPD8048 microcomputer family. They are accessible with their own ANL, MOV, and OR L instructions.
FEATURES
• Four 4-8it I/O Ports
• Fu.
UPB8243 Datasheet
