ST92F250CV2TB STMicroelectronics, ST92F250CV2TB Datasheet - Page 64

• Manufacturer Part Number: ST92F250CV2TB
• Description: IC MCU 256K FLASH 100-TQFP
• Manufacturer: STMicroelectronics
• Series: ST9r

Specifications of ST92F250CV2TB

• Core Processor: ST9
• Core Size: 8/16-Bit
• Speed: 24MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 100-TQFP, 100-VQFP
• Processor Series: ST92F25x
• Core: ST9
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 8 KB
• Interface Type: CAN, I2C, SCI, SPI
• Maximum Clock Frequency: 24 MHz
• Number Of Programmable I/os: 80
• Number Of Timers: 5 x 16 bit
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST92F150-EPB
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16 bit x 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2140

ST92F124/F150/F250 - SINGLE VOLTAGE FLASH & E3 TM (EMULATED EEPROM)
Figure 35. Test /EPB Mode Protection
Figure 36. Access Mode Protection
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9
Set the
Access Protection Bit
by an OR operation executed
from the Memory
to unprotect
Password
Good
Access Mode
Unprotected
1st
Bad Password
Good
Password
Reset the Access Protection bit
by a Set Protection Operation
Test/EPB Mode
Test/EPB Mode
Test/EPB Mode
Test/EPB Mode
Unprotected
Protected
Protected
Protected
Access Mode
Protected
3rd Bad Password
Access Mode
Temporarily
Unprotected
Bad Password
2nd
Bad
Password
executed from RAM
Password
Good
SW/HW
Reset
Good
PassWord
NVAPR
Read
Access
Test/EPB Mode
Unprotected
Reset the
Access Protection bit
Executed from RAM
by a Set Protection
Operation
Bad Password