sm59d04g2 SyncMOS Technologies,Inc, sm59d04g2 Datasheet - Page 15

• Manufacturer Part Number: sm59d04g2
• Description: 8-bits Micro-controller 16kb+ Isp Flash & 1kb Ram Embedded
• Manufacturer: SyncMOS Technologies,Inc

The SM59D04G2 provides code protect function on the writer. The user can select protect or
unprotect by writer. If protection is selected, users can’t read the program from the writer. When the
user runs in the external program mode (EA = 0) and protect bit is set and the MOVC instruction will
be disable by hardware. The only way to change the protection bit back is to erase the entire Flash.
3.2
The SM59D04G2 has 256 + 768 bytes on-chip RAM, the 256 bytes 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.
ISSFD-M031
Data Memory
Fig 3-1：Flash segmentation for ISP
SM56D04G2
15
0000
3FFF
3E00
3C00
3A00
3800
3600
3400
3200
3000
16KB+ ISP Flash & 1KB RAM embedded
N=8
N=7
N=6
Ver.C SM59D04G2 07/2009
8-Bits Micro-controller
N=1
N=0
SM59D04G2