R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 438

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 19.16
NOTE:
1. To rewrite to the address where the program error occurs, check if the full
status check is complete normally and write to the address after the block
erase command is executed.
Full status check completed
Feb 29, 2008
Full status check
FMR07 = 1?
FMR07 = 1?
FMR06 = 1?
FMR06 = 1
and
No
No
No
Full Status Check and Handling Procedure for Individual Errors
Yes
Yes
Yes
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Command sequence error
Program error
Erase error
Execute the clear status register command
Execute the clear status register command
write address where the error occurs for
Specify the other address besides the
Check if command is properly input
Re-execute block erase command
Execute the clear status register
Re-execute program command
re-execution times ≤ 3 times?
(set these status flags to 0)
(set these status flags to 0)
(set these status flags to 0)
Re-execute the command
Command sequence error
the program address
Erase command
Program error
Erase error
command
Yes
(1)
No
Block targeting for erasure
cannot be used
19. Flash Memory