R5F21262SNFP#U0 Renesas Electronics America, R5F21262SNFP#U0 Datasheet - Page 104
![IC R8C/26 MCU FLASH 32LQFP](/photos/12/27/122729/r5f21262snfp_u0_sml.jpg)
R5F21262SNFP#U0
Manufacturer Part Number
R5F21262SNFP#U0
Description
IC R8C/26 MCU FLASH 32LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/26r
Datasheet
1.R5F21272SDFPU0.pdf
(487 pages)
Specifications of R5F21262SNFP#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
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R8C/26 Group, R8C/27 Group
Rev.2.10
REJ09B0278-0210
Figure 10.6
High-Speed On-Chip Oscillator Control Register 6 (For N, D Version Only)
High-Speed On-Chip Oscillator Control Register 7 (For N, D Version Only)
High-Speed On-Chip Oscillator Control Register 2
High-Speed On-Chip Oscillator Control Register 4 (For N, D Version Only)
b7 b6 b5 b4
b7 b6 b5 b4
b7 b6 b5 b4 b3 b2 b1 b0
NOTES:
b7 b6 b5 b4
0 0 0 0 0
1.
2.
Set the PRC0 bit in the PRCR register to 1 (w rite enable) before rew riting the FRA2 register.
Do not set in K version.
Sep 26, 2008
b3 b2 b1 b0
b3 b2 b1 b0
b3 b2 b1 b0
Registers FRA2, FRA4, FRA6, and FRA7
Stores data for frequency correction w hen VCC = 2.2 to 5.5 V. Optimal frequency correction
to match the voltage conditions can be achieved by transferring this value to the FRA1
register.
36.864 MHz frequency correction data is stored.
The oscillation frequency of the high-speed on-chip oscillator can be adjusted to 36.864 MHz
by transferring this value to the FRA1 register.
Stores data for frequency correction w hen VCC = 2.7 to 5.5 V. (The value is the same as that
of the FRA1 register after a reset.) Optimal frequency correction to match the voltage
conditions can be achieved by transferring this value to the FRA1 register.
Bit Symbol
(b7-b3)
Symbol
Symbol
Symbol
FRA20
FRA21
FRA22
Symbol
FRA6
FRA7
FRA2
FRA4
Page 85 of 453
—
High-speed on-chip oscillator
frequency sw itching bits
Reserved bits
Address
Address
Address
Bit Name
Address
002Bh
002Ch
0025h
0029h
(1)
Function
Function
Function
Selects the dividing ratio for the high-
speed on-chip oscillator clock.
b2 b1 b0
0 0 0: Divide-by-2 mode
0 0 1: Divide-by-3 mode
0 1 0: Divide-by-4 mode
0 1 1: Divide-by-5 mode
1 0 0: Divide-by-6 mode
1 0 1: Divide-by-7 mode
1 1 0: Divide-by-8 mode
1 1 1: Divide-by-9 mode
Set to 0.
When Shipping
When Shipping
When Shipping
After Reset
After Reset
After Reset
After Reset
Function
00h
10. Clock Generation Circuit
(2)
(2)
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
RO
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