R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 314
![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
16. Clock Synchronous Serial Interface
The clock synchronous serial interface is configured as follows.
Clock Synchronous Serial Interface
The clock synchronous serial interface uses the registers of addresses 00B8h to 00BFh. Registers, bits, symbols and
functions vary even in the same addresses depending on the modes. Refer to registers of each function for details.
Also, the differences between clock synchronous communication mode and clock synchronous serial mode are the
options of the transfer clock, clock output format and data output format.
16.1
Table 16.1
IICSEL Bit
Clock synchronous serial I/O with chip select (SSU)
I
The clock synchronous serial interface contains 4 modes.
Table 16.1 lists the Mode Selections. Refer to 16.2 Clock Synchronous Serial I/O with Chip Select (SSU) or after
for details of each mode.
2
Register
in PMR
C bus interface
0
0
1
1
Mode Selection
(ICE Bit in ICCR1
Mode Selections
Bit 7 in 00B8h
Register)
0
0
1
1
Page 292 of 501
Register, FS Bit in SAR
(SSUMS Bit in SSMR2
Bit 0 in 00BDh
Register)
0
1
0
1
Clock synchronous
serial I/O with chip
select
I
2
C bus interface
Function
Clock synchronous communication mode
4-wire bus communication mode
I
Clock synchronous serial mode
2
C bus interface mode
16. Clock Synchronous Serial Interface
Clock synchronous
communication mode
4-wire bus communication
mode
I
Clock synchronous serial
mode
2
C bus interface mode
Mode
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