ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 28

• Manufacturer Part Number: ST7FLITE49K2T6TR
• Description: IC MCU 8BIT 8K FLASH 32LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FLITE49K2T6TR

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST7FLITE4x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, ST7FLI49M-D/RAIS, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• For Use With: 497-8399 - BOARD EVAL ST7LITE49M/STLED316S497-5858 - EVAL BOARD PLAYBACK ST7FLITE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Flash programmable memory
4.5
4.5.1
4.5.2
Caution:
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4.7
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Memory protection
There are two different types of memory protection: Read-Out Protection and Write/Erase
Protection which can be applied individually.
Read-out protection
Read-Out Protection, when selected provides a protection against program memory content
extraction and against write access to Flash memory. Even if no protection can be
considered as totally unbreakable, the feature provides a very high level of protection for a
general purpose microcontroller. Both program and data EEPROM memory are protected.
In Flash devices, this protection is removed by reprogramming the option. In this case, both
program and data EEPROM memory are automatically erased and the device can be
reprogrammed.
Read-Out Protection selection depends on the device type:
●
●
Flash write/erase protection
Write/Erase Protection, when set, makes it impossible to both overwrite and erase program
memory. It does not apply to EEPROM data. Its purpose is to provide advanced security to
applications and prevent any change being made to the memory content. Write/Erase
Protection is enabled through the FMP_W bit in the option byte.
Once set, Write/Erase Protection can never be removed. A write-protected Flash
device is no longer reprogrammable.
Related documentation
For details on Flash programming and ICC protocol, refer to the ST7 Flash Programming
Reference Manual and to the ST7 ICC Protocol Reference Manual
Description of Flash control/status register (FCSR)
This register controls the XFlash erasing and programming using ICP, IAP or other
programming methods.
1st RASS Key: 0101 0110 (56h)
2nd RASS Key: 1010 1110 (AEh)
When an EPB or another programming tool is used (in socket or ICP mode), the RASS keys
are sent automatically.
Reset value: 000 0000 (00h)
In Flash devices it is enabled and removed through the FMP_R bit in the option byte.
In ROM devices it is enabled by mask option specified in the option list.
7
0
0
0
0
Read/write
0
OPT
.
LAT
ST7LITE49K2
PGM
0