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UPD8255

PROGRAMMABLE PERIPHERAL INTERFACES

UPD8255 Features

* unique to each of the ports. Port A = An 8-bit data output latch/buffer and data input latch. Port B = An 8-bit data input/output latch/buffer and an 8-bit data input buffer.

UPD8255 General Description

Data Bus Buffer The 3-state, bidirectional, eight bit Data Bus Buffer (DO-D71 of the .uPD8255 and .uPD8255A-5 can be directly interfaced to the processor's system Data Bus (DO-D7)The Data Bus Buffer is controlled by execution of IN and OUT instructions by the processor. Control Words and Status inf.

UPD8255 Datasheet (374.28 KB)

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Datasheet Details

Part number:

UPD8255

Manufacturer:

NEC

File Size:

374.28 KB

Description:

Programmable peripheral interfaces.
NEe Microcomputers, Inc. NE'C fLPD8255 fLPD8255A
*5 PROGRAMMABLE PERIPHERAL INTERFACES D ESCR I PTI ON The IlPD8255 and IlPD8255A-5 are general.

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UPD8255 PROGRAMMABLE PERIPHERAL INTERFACES NEC

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