ST10F272M-4T3 STMicroelectronics, ST10F272M-4T3 Datasheet - Page 35
ST10F272M-4T3
Manufacturer Part Number
ST10F272M-4T3
Description
MCU 16BIT 256K FLASH 144-LQFP
Manufacturer
STMicroelectronics
Series
ST10r
Datasheet
1.ST10F272M-4TR3.pdf
(176 pages)
Specifications of ST10F272M-4T3
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
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
20K 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-MQFP, 144-PQFP
Processor Series
ST10F27x
Core
ST10
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST10F272M-4T3
Manufacturer:
STMicroelectronics
Quantity:
10 000
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ST10F272M
5.5
5.5.1
Table 18.
Protection strategy
The protection bits are stored in non-volatile Flash cells inside IFlash module, that are read
once at reset and stored in four 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 itself.
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 four non-volatile protection registers are one time programmable for the user.
One register (FNVWPIR) is used to store the write protection fuses respectively for each
sector IFlash module. The other three registers (FNVAPR0 and FNVAPR1L/H) are used to
store the access protection fuses.
Bit
6
7
8
SEQER
RESER
Name
WPF
Flash error register (continued)
Sequence error
This bit is automatically set when the control registers (FCR1H/L-FCR0H/L,
FARH/L, FDR1H/L-FDR0H/L) are not correctly filled to execute a valid Write
Operation. In this case no write operation is executed. This bit has to be software
reset.
Resume error
This bit is automatically set when a suspended program or erase operation is not
resumed correctly due to a protocol error. In this case the suspended operation is
aborted. This bit has to be software reset.
Write protection flag
This bit is automatically set when trying to program or erase in a sector write
protected. In case of multiple sector erase, the not protected sectors are erased,
while the protected sectors are not erased and bit WPF is set. This bit has to be
software reset.
Function
Internal Flash memory
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