參數(shù)資料
型號(hào)： M50FLW080AN5T
廠商： STMICROELECTRONICS
元件分類： PROM
英文描述： 1M X 8 FLASH 3V PROM, 11 ns, PDSO40
封裝： 10 X 20 MM, PLASTIC, TSOP-40
文件頁(yè)數(shù)： 41/53頁(yè)
文件大?。?/td> 945K
代理商： M50FLW080AN5T
M50FLW080A, M50FLW080B
46/53
Figure 23. Double/Quadruple Byte Program Flowchart and Pseudo code (FWH Mode Only)
Note: 1. A Status check of SR3 (VPP Invalid) and SR4 (Program Error) can be made after each program operation by following the correct
command sequence.
2. If an error is found, the Status Register must be cleared before further Program/Erase operations.
3. A0 and/or A1 are treated as Don’t Care (A0 for Double Byte Program and A1-A0 for Quadruple Byte Program).
For Double Byte Program: Starting at the Start Address, the first data Byte is programmed at the even address, and the second at
the odd address.
For Quadruple Byte Program: Starting at the Start Address, the first data Byte is programmed at the address that has A1-A0 at 00,
the second at the address that has A1-A0 at 01, the third at the address that has A1-A0 at 10, and the fourth at the address that
has A1-A0 at 11.
AI09093
Read Status
Register
YES
NO
SR7 = 1
YES
NO
SR3 = 0
NO
SR4 = 0
VPP Invalid
Error (1, 2)
Program
Error (1, 2)
Double/Quadruple Byte Program command:
– write 40h or 10h
– write Start Address and 2/4 Data Bytes (3)
(memory enters read status state after
the Double/Quadruple Byte Program command)
do:
– Read Status Register
– If SR7=0 and a Program/Erase Suspend
command has been executed
– SR7 is set to 1
– Enter suspend program loop
If SR3 = 1, VPP invalid error:
– error handler
If SR4 = 1, Program error:
– error handler
Suspend
Loop
NO
YES
Write 40h or 10h
Start
Write Start Address
and 2/4 Data Bytes (3)
YES
End
YES
NO
SR1 = 0
Program to Protected
Block/Sector Error (1, 2)
If SR1 = 1,
Program to protected block/sector error:
– error handler
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