sm59d04g2 SyncMOS Technologies,Inc, sm59d04g2 Datasheet - Page 14

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

3
The SM59D04G2 manipulates operands in three memory spaces. They are (1) 256 bytes standard
RAM, (2) 768 bytes auxiliary RAM，and (3) 16K bytes embedded Flash as program memory.
3.1
As described in Section 1, the SM59D04G2 has 16K bytes on-chip Flash memory which is used as
general program memory, the address range for the 16K bytes is 0000h to 3FFFh. If the program
code is less than 16K bytes, the remaining part can be used as EEPROM to store data. The
procedure of this EEPROM application function is described in the section on ISP.
The feature of FLASH memory is shown as following:
If we do ISP or IAP, there are up to 4K bytes of specific ISP service program. The address range is
3000h to 3FFFh. The ISP service program size can be partitioned as N blocks of 512 bytes (N=0
to 8). When N=0, there will be no ISP service program space available, the total 16K bytes memory
are used as program memory. When N=1, the Flash from 3E00h to 3FFFh is reserved for ISP
service program. When N=2, the Flash from 3C00h to 3FFFh is reserved for ISP service program…
Value N is set in the information block. Fig 3.1 shows the ISP Flash reservation with different values
of N.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M031
Memory Structure
READ:
WRITE:
ERASE:
Endurance :
Retention :
Program Memory
Full Erase (16K bytes) within 200 ms.
Erased bytes contain FFH
byte-wise
byte-wise within 30us (previously erased by a chip erase).
10 years
100K erase and write cycles each byte at TA=25℃
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16KB+ ISP Flash & 1KB RAM embedded
Ver.C SM59D04G2 07/2009
8-Bits Micro-controller
SM59D04G2