R5F21272SNFP#U0 Renesas Electronics America, R5F21272SNFP#U0 Datasheet - Page 399
R5F21272SNFP#U0
Manufacturer Part Number
R5F21272SNFP#U0
Description
IC R8C/27 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/27r
Datasheet
1.R5F21272SDFPU0.pdf
(487 pages)
Specifications of R5F21272SNFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
I²C, LIN, SIO, SSU, UART/USART
Peripherals
LED, POR, Voltage Detect, WDT
Number Of I /o
25
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
512 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
32-LQFP
For Use With
R0K521276S000BE - KIT DEV RSK-R8C/26-29R0E521000EPB00 - PROBE EMULATOR FOR PC7501
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
R5F21272SNFP#U0R5F21272SNFP#V2
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Table 19.10
NOTES:
Mode
EW1 During auto-erasure
1. Do not use the address match interrupt while a command is executing because the vector of the
2. Do not use a non-maskable interrupt while block 0 is being automatically erased because the fixed
address match interrupt is allocated in ROM.
vector is allocated in block 0.
(erase-suspend
function enabled)
During auto-erasure
(erase-suspend
function disabled)
During auto-
programming
(program suspend
function enabled)
During auto-
programming
(program suspend
function disabled)
Sep 26, 2008
EW1 Mode Interrupt
Status
Page 380 of 453
Auto-erasure is suspended after
td(SR-SUS) and interrupt
handling is executed. Auto-
erasure can be restarted by
setting the FMR41 bit in the
FMR4 register to 0 (erase restart)
after interrupt handling
completes.
Auto-erasure has priority and the
interrupt request
acknowledgement is put on
standby. Interrupt handling is
executed after auto-erasure
completes.
Auto-programming is suspended
after td(SR-SUS) and interrupt
handling is executed.
Auto-programming can be
restarted by setting the FMR42 bit
in the FMR4 register to 0
(program restart) after interrupt
handling completes.
Auto-programming has priority
and the interrupt request
acknowledgement is put on
standby. Interrupt handling is
executed after auto-programming
completes.
Request is Acknowledged
When Maskable Interrupt
When Watchdog Timer, Oscillation Stop
Detection, Voltage Monitor 1, or Voltage
Once an interrupt request is
acknowledged, auto-programming or
auto-erasure is forcibly stopped
immediately and the flash memory is
reset. Interrupt handling starts after the
fixed period and the flash memory
restarts. Since the block during auto-
erasure or the address during auto-
programming is forcibly stopped, the
normal value may not be read. Execute
auto-erasure again and ensure it
completes normally.
Since the watchdog timer does not stop
during the command operation,
interrupt requests may be generated.
Reset the watchdog timer regularly
using the erase-suspend function.
Monitor 2 Interrupt Request is
Acknowledged
19. Flash Memory
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