ST10F276Z5T3 STMicroelectronics, ST10F276Z5T3 Datasheet - Page 38

• Manufacturer Part Number: ST10F276Z5T3
• Description: MCU 16BIT 832KBIT FLASH 144-TQFP
• Manufacturer: STMicroelectronics
• Series: ST10r

Specifications of ST10F276Z5T3

• Core Processor: ST10
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: ASC, CAN, EBI/EMI, I²C, SSC, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 111
• Program Memory Size: 832KB (832K x 8)
• Program Memory Type: FLASH
• Ram Size: 68K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 24x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-TQFP, 144-VQFP
• Cpu Family: ST10
• Device Core Size: 16b
• Frequency (max): 40MHz
• Interface Type: CAN/I2C
• Total Internal Ram Size: 68KB
• # I/os (max): 111
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• On-chip Adc: 24-chx10-bit
• Instruction Set Architecture: CISC/RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: LQFP
• Processor Series: ST10F27x
• Core: ST10
• Data Bus Width: 16 bit
• Data Ram Size: 68 KB
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 111
• Number Of Timers: 5
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-6399 - KIT DEV STARTER ST10F276Z5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

Internal Flash memory
4.5
4.5.1
4.5.2
38/239
Protection strategy
The protection bits are stored in Non Volatile Flash cells inside XFLASH module, that are
read once at reset and stored in 7 Volatile registers. Before they are read from the Non
Volatile cells, all the available protections are forced active during reset.
The protections can be programmed using the Set Protection operation (see Flash Control
Registers paragraph), that can be executed from all the internal or external memories
except from the Flash Bank B2.
Two kind of protections are available: write protections to avoid unwanted writings and
access protections to avoid piracy. In next paragraphs all different level of protections are
shown, and architecture limitations are highlighted as well.
Protection registers
The 7 Non Volatile Protection Registers are one time programmable for the user.
Four registers (FNVWPXRL/H-FNVWPIRL/H) are used to store the Write Protection fuses
respectively for each sector of the XFLASH Module (see X) and IFLASH module (see I). The
other three Registers (FNVAPR0 and FNVAPR1L/H) are used to store the Access
Protection fuses (common to both Flash modules even though with some limitations).
Flash non volatile write protection X register low
FNVWPXRL (0x0E DFB0)
W2PPR
Table 20.
RW
15
W2P(2:0)
W2PPR
Bit
14
Flash non volatile write protection X register low
13
Write Protection Bank 2 sectors 2-0 (XFLASH)
These bits, if programmed at 0, disable any write access to the sectors of Bank 2
(XFLASH).
Write Protection Bank 2 Non Volatile cells
This bit, if programmed at 0, disables any write access to the Non Volatile cells of Bank
2. Since these Non Volatile cells are dedicated to Protection registers, once W2PPR
bit is set, the configuration of protection setting is frozen, and can only be modified
executing a Temporary Write Unprotection operation.
12
11
10
reserved
9
NVR
8
Function
7
6
5
4
3
Delivery value: FFFFh
W2P2W2P1W2P0
RW
2
ST10F276Z5
RW
1
RW
0