R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 233
![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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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Table 14.27
i = 0 or 1, j = either B, C or D,
h = either A, B, C or D
Count Sources
Count Operations
PWM Waveform
Count Start Condition
Count Stop Conditions
Interrupt Request Generation
Timing
TRDIOA0 Pin Function
TRDIOA1 Pin Function
TRDIOB0, TRDIOC0, TRDIOD0,
TRDIOB1, TRDIOC1, TRDIOD1
Pin Functions
INT0 Pin Function
Read from Timer
Write to Timer
Selection Functions
PWM Mode Specifications
Item
Page 211 of 501
f1, f2, f4, f8, f32, fOCO40M
Write 1 (count starts) to the TSTARTi bit in the TRDSTR register.
• Write 0 (count stops) to the TSTARTi bit in the TRDSTR register
The count value can be read by reading the TRDi register.
The value can be written to the TRDi register.
External signal input to the TRDCLK pin (valid edge selected by a
program)
Increment
PWM period: 1/fk x (m+1)
Active level width: 1/fk x (m-n)
Inactive level width: 1/fk x (n+1)
• When the CSELi bit in the TRDSTR register is set to 0, the count
• Compare match (the content in the TRDi register matches with the
• TRDi register overflows
Programmable I/O port or TRDCLK (external clock) input
Programmable I/O port
Programmable I/O port or pulse output (select every pin)
Programmable I/O port, pulse output forced cutoff signal input or INT0
interrupt input
• 1 to 3 PWM output pins selected per 1 channel
• The active level selected every pin.
• Initial output level selected every pin.
• Synchronous operation (refer to 14.3.3 Synchronous Operation.)
• Buffer operation (refer to 14.3.2 Buffer Operation.)
• Pulse output forced cutoff signal input (refer to 14.3.4 Pulse Output
fk: Frequency of count source
m: Setting value in the TRDGRAi register
n: Setting value in the TRDGRji register
when the CSELi bit in the TRDSTR register is set to 1.
The PWM output pin holds output level before the count stops.
stops at the compare match in the TRDGRAi register.
The PWM output pin holds level after output change by the compare
match.
content in the TRDGRhi register.)
Either 1 pin or multiple pins of the TRDIOBi, TRDIOCi or TRDIODi
pin.
Forced Cutoff.)
n + 1
m + 1
m - n
Specification
(When “L” is selected for the active level)
14. Timers
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