R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 409
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/38/123822/r5f21238dfp_u0_sml.jpg)
R5F21238DFP#U0
Manufacturer Part Number
R5F21238DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21238DFP#U0
Core Size
16/32-Bit
Program Memory Size
64KB (64K x 8)
Peripherals
POR, Voltage Detect, WDT
Core Processor
R8C
Speed
20MHz
Connectivity
CAN, I²C, LIN, SIO, SSU, UART/USART
Number Of I /o
41
Program Memory Type
FLASH
Ram Size
3K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
No. Of I/o's
41
Ram Memory Size
3KB
Cpu Speed
20MHz
No. Of Timers
4
Digital Ic Case Style
LQFP
Embedded Interface Type
CAN, I2C, UART
Rohs Compliant
Yes
Cpu Family
R8C
Device Core Size
16b
Frequency (max)
20MHz
Interface Type
I2C/UART
Total Internal Ram Size
3KB
# I/os (max)
41
Number Of Timers - General Purpose
5
Operating Supply Voltage (typ)
3.3/5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
3V
On-chip Adc
12-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
48
Package Type
LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
18.6.2
Table 18.2
NOTE:
Calculation of Baud Rate
1. The number in ( ) indicates a value of fCAN division value multiplied by division value of the baud
Baud rate depends on system clock, the division value of the CAN module system clock, the division value of
the baud rate prescaler, and the number of Tq’s in one bit.
Table 18.2 shows the Examples of Baud Rate.
Baud Rate
83.3 kbps
33.3 kbps
500 kbps
125 kbps
rate prescaler.
1 Mbps
NOTES:
1. fCAN division value = 1, 2, 4, 8, 16
2. Division value of prescaler for baud rate = P + 1 (P: 0 to 15)
Baud Rate
2 x fCAN division value
fCAN division value: a value selected in the CCLKR register
P: a value selected by the BRP bit in the C0CONR register
Examples of Baud Rate
Page 387 of 501
10Tq (12)
10Tq (30)
20Tq (15)
10Tq (1)
10Tq (2)
20Tq (1)
8Tq (10)
10Tq (8)
16Tq (5)
20Tq (4)
8Tq (15)
20Tq (6)
20 MHz
---
(1)
x division value of baud rate prescaler
10Tq (24)
16Tq (15)
20Tq (12)
16Tq (1)
16Tq (4)
8Tq (12)
16Tq (6)
8Tq (30)
16 MHz
8Tq (1)
8Tq (2)
8Tq (8)
XIN
---
---
10Tq (15)
(2)
10Tq (1)
10Tq (4)
20Tq (2)
10Tq (6)
20Tq (3)
10 MHz
8Tq (5)
x number of Tq’s in one bit
---
---
---
---
---
10Tq (12)
16Tq (2)
16Tq (3)
8Tq (15)
20Tq (6)
8Tq (1)
8Tq (4)
8Tq (6)
18. CAN Module
8 MHz
---
---
---
---
---
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