ST92F250CV2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92F250CV2

8/16-bit single voltage Flash MCU family with RAM, E³ TM (emulated EEPROM), CAN 2.0B and J1850 BLPD

STMicroelectronics 

Single voltage Flash and E3™ (emulated EEPROM)

Figure 31. Flash memory structure (example for 128K Flash device)

sense amplifiers

230000h

231F80h

000000h

002000h

004000h

010000h

TestFlash

8 Kbytes

User OTP and Protection registers

Sector F0

8 Kbytes

Sector F1

8 Kbytes

Sector F2

48 Kbytes

Sector F3

64 Kbytes

Address

Data

Register

Interface

RAM buffer

16 bytes

Program / Erase

Controller

22CFFFh

228000h

2203FFh

220000h

Hardware emulated EEPROM sectors

8 Kbytes (Reserved)

Emulated EEPROM

1 Kbyte

sense amplifiers

7.2

7.2.1

7.2.2

Functional description

Structure

The memory is composed of three parts:

● a sector with the system routines (TestFlash) and the user OTP area

● 4 main sectors for code

● an emulated EEPROM

124 bytes are available to the user as an OTP area. The user can program these bytes, but

cannot erase them.

EEPROM emulation

A hardware EEPROM emulation is implemented using special flash sectors to emulate an

EEPROM memory. This E3 TM is directly addressed from 220000h to 2203FFh.

(For more details on hardware EEPROM emulation, see application note AN1152)

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Doc ID 8848 Rev 7

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