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SM8958A

8-Bit Micro-controller with 32KB flash & 1KB RAM embedded

SyncMOS Technologies,Inc 

SyncMOS Technologies International, Inc.

Extension Function Description

SM8958A

8-Bits Micro-controller

With 32KB flash & 1KB RAM embedded

1. Memory Structure

The SM8958A is the general 8052 hardware core as a single chip micro controller. Its memory structure follows

general 8052 structure.

1.1 Program Memory

The SM8958A has 32K byte on-chip flash memory which used as general program memory. The address range for the

32K byte is $0000 to $7FFF.

Note: The single flash block address structure for doing as well as program ROM flash.

1.2 Data Memory

The SM8958A has 1K bytes on-chip RAM, 256 bytes of it are the same as general 8052 internal memory structure

while the expanded 768 bytes on-chip RAM can be accessed by external memory addressing method (by instruction

MOVX).

Specifications subject to change without notice contact your sales representatives for the most recent information.

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Ver 2.1 SM8958A 08/2006

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