R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 286
![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
Figure 14.111 Operation When TRD1 Register Underflows in Complementary PWM Mode
TRDGRB0 register
TRDGRA1 register
TRDGRB1 register
TRDSR0 register
TRDSR0 register
Count value in TRD0
UDF bit in
OVF bit in
•
The TRD1 register counts the order of 1, 0, FFFFh, 0, 1 when changing from decrement to increment.
The UDF bit is set to 1 by the order of 1, 0, FFFFh operation. Also, when the CMD1 to CMD0 bits in the
TRDFCR register are set to 10b (complementary PWM mode, buffer data transferred by the underflow in
the TRD1 register), the content in the buffer register (TRDGRD0, TRDGRC1, TRDGRD1) is transferred
to the general register (TRDGRB0, TRDGRA1, TRDGRB1). For the order of FFFFh, 0, 1 operation, data
are not transferred to the register such as the TRDGRB0 register. Also, at this time, the OVF bit remains
unchanged.
FFFFh
register
1
0
1
0
1
0
Set to 0 by a program
Page 264 of 501
Transferred from
buffer register
No change
Not transferred from buffer register
When the CMD1 to CMD0 bits in the
TRDFCR register are set to 10b.
(Transfer from the buffer register to the
general register when the TRD1 register
underflows)
14. Timers
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