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SM7301

SyncMOS
Part Number SM7301
Manufacturer SyncMOS
Description Specification of Programming FLASH
Published Dec 29, 2014
Detailed Description SH 1 OF 1 Specification of Programming FLASH SM7301 1. General Description The SM7301 is normally shipped with the o...
Datasheet PDF File SM7301 PDF File

SM7301
SM7301

Overview
SH 1 OF 1 Specification of Programming FLASH SM7301 1.
General Description The SM7301 is normally shipped with the on-chip FLASH memory array in the erased state (that is, contents = FFH) and ready to be programmed.
To programming on-chip FLASH memory, MCU must be in the RESET mode.
2.
Pin Assignment and Description 40 Pins DIP 44 Pins QFP 44 Pins PLCC Name I/O Description 1,2,3,4,5,6,7,8 40,41,42,43,44,1,2,3 2,3,4,5,6,7,8,9 P1 I The low-byte of address (A7-A0), *1 21,22,23,24,25 18,19,20,21,22 24,25,26,27,28 P2 I The high-byte of address (A12-A8) *1 26,27,28 23,24,25 29,30,31 TST[1:3] I Test pin must connect to 0V 32,33,34,35,36,37,38,39 30,31,32,33,34,35,36,37 36,37,38,39,40,41,42,43 P0 I/O The data bus (D7 – D0) 94 10 RES I Reset pin, must be in 5V when programming FLASH 19 15 21 X1 I Crystal in, feed clock into the MCU 31 29 35 EA I +11.
2V voltage supply in ERASE and PROGRAMMING 40 38 44 VDD I +5V voltage supply.
20 16 22 VSS I Sink voltage, Ground 30 27 33 ALE I Flash chip enable 29 26 32 PSEN I Flash data output enable 10 5 11 P3.
0 I Enable Chip-Erase Mode (low active) 13 9 15 P3.
3 I Enable Programming Mode (low active) 14 10 16 P3.
4 I Enable Programming Protect bit (low active) 15 11 17 P3.
5 I Enable Flash Mode Select 11,12 7,8 13,14 P3.
1,P3.
2 I Must set the HIGH, When enter Programming FLASH 18 14 20 X2 O Crystal out, Let floating 16, 17, 12,13 18,19 P3.
6, P3.
7 O Let all unused pins are floating.
17,28,39,6 23,34,1,12 P4 O Let all unused pins are floating.
*1 The size of FLASH RAM in SM7301 is 8K bytes.
So the address (P2.
7-P2.
0 P1.
7-P1.
0) is from 0x0000 to 0x1FFF.
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: SH 2 OF 2 3.
Programming FLASH Algorithm Before programming the SM7301, the address, data and control signals should be set up according the FLASH programming table and Figure 1.
To 4.
Raise VPP to ...


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