R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 304
![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
Table 15.2
NOTE:
Table 15.3
U0TB
U0RB
U0BRG
U0MR
U0C0
U0C1
TXD0(P1_4)
RXD0(P1_5)
CLK0(P1_6)
Table 15.3 lists the I/O Pin Functions in Clock Synchronous Serial I/O Mode. The TXD0 pin outputs “H” level
between the operating mode selection of UART0 and transfer start, an “H” (If the NCH bit is set to 1 (the N-
channel open-drain output), this pin is in a high-impedance state.)
Pin Name
1. Set bits which are not in this table to 0 when writing to the registers in clock synchronous serial I/O
Register
mode.
Registers Used and Settings in Clock Synchronous Serial I/O Mode
I/O Pin Functions in Clock Synchronous Serial I/O Mode
Output serial data
Input serial data
Output transfer clock
Input transfer clock
0 to 7
0 to 7
OER
0 to 7
SMD2 to SMD0
CKDIR
CLK1 to CLK0
TXEPT
NCH
CKPOL
UFORM
TE
TI
RE
RI
U0IRS
U0RRM
Function
Page 282 of 501
Bit
Set transmit data
Receive data can be read
Overrun error flag
Set bit rate
Set to 001b
Select the internal clock or external clock
Select the count source in the U0BRG register
Transmit register empty flag
Select TXD0 pin output mode
Select the transfer clock polarity
Select the LSB first or MSB first
Set this bit to 1 to enable transmit/receive
Transmit buffer empty flag
Set this bit to 1 to enable reception
Reception complete flag
Select the UART0 transmit interrupt source
Set this bit to 1 to use continuous receive mode
(Outputs dummy data when performing receive only)
The PD1_5 bit in the PD1 register = 0
(P1_5 can be used as an input port when performing transmit
only)
The CKDIR bit in the U0MR register = 0
The CKDIR bit in the U0MR register = 1
PD1_6 bit in PD1 register = 0
Selection Method
Function
(1)
15. Serial Interface
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