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PQFP100 bảng dữ liệu(PDF) 50 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  8/16-BIT SINGLE VOLTAGE FLASH MCU FAMILY WITH RAM, E3 TM(EMULATED EEPROM), CAN 2.0B AND J1850 BLPD
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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PQFP100 bảng dữ liệu(HTML) 50 Page - STMicroelectronics

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ST92F124/F150/F250 - SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)
3 SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)
3.1 INTRODUCTION
The Flash circuitry contains one array divided in
two main parts that can each be read independ-
ently. The first part contains the main Flash array
for code storage, a reserved array (TestFlash) for
system routines and a 128-byte area available as
one time programmable memory (OTP). The sec-
ond part contains the two dedicated Flash sectors
used for EEPROM Hardware Emulation.
The write operations of the two parts are managed
by
an
embedded
Program/Erase
Controller.
Through a dedicated RAM buffer the Flash and the
E3 TM
can be written in blocks of 16 bytes.
Figure 30. Flash Memory Structure (Example for 64K Flash device)
230000h
004000h
002000h
000000h
Sector F1
8 Kbytes
Sector F0
8 Kbytes
TestFlash
8 Kbytes
Program / Erase
Controller
RAM buffer
16 bytes
Register
Interface
Address
Data
231F80h
User OTP and Protection registers
Sector F2
48 Kbytes
sense amplifiers
22CFFFh
228000h
Hardware emulated EEPROM sectors
8 Kbytes (Reserved)
Emulated EEPROM
1 Kbyte
sense amplifiers
220000h
2203FFh
010000h
9



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