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ST72E331 데이터시트(PDF) 35 Page - STMicroelectronics

부품명 ST72E331
상세설명  8-BIT MCU WITH 8 TO 16K OTP/EPROM, 256 EEPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS
PDF  107 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72E331 데이터시트(HTML) 35 Page - STMicroelectronics

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ST72E331 ST72T331
EEPROM (Cont’d)
Figure 23. EEPROM Programming Cycle
Figure 24. EEPROM Programming Flowchart
Erase cycle
Write cycle
Tprog
Read operation allowed
Read operation not possible
INTERNAL
PROGRAMMING
VOLTAGE
Write of
data
latches
E2LAT
E2PGM
INTERRUPT
REQUEST
Interrupt
vector fetch
E2LAT=1
E2PGM=0
(Write mode)
Write bytes in
EEPROM
E2LAT=1
E2PGM=1
(Start
programming
cycle)
Wait for end of
programming
(E2LAT=0
or interrupt)
Write 1 to 16 bytes
in the same row
(with the same 12
Most Significant
Bits of the address)
E2LAT=0
E2PGM=0
(Read mode)
35



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