R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 50
![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
5.
There are resets: hardware reset, power-on reset, voltage monitor 1 reset, voltage monitor 2 reset, watchdog timer
reset, and software reset.
Table 5.1 lists the Reset Names and Sources.
Figure 5.1
Table 5.1
NOTE:
Hardware reset
Power-on reset
Voltage monitor 1 reset
Voltage monitor 2 reset
Watchdog timer reset
Software reset
Resets
1. Because this product is under development, specifications may be changed.
RESET
VCC
Reset Name
Reset Names and Sources
Block Diagram of Reset Circuit
(1)
Page 28 of 501
(1)
(1)
Power-on reset
Watchdog
detection
Voltage
circuit
circuit
timer
CPU
Input voltage of RESET pin is held “L”
VCC rises
VCC falls (monitor voltage: Vdet1)
VCC falls (monitor voltage: Vdet2)
Underflow of watchdog timer
Write 1 to PM03 bit in PM0 register
Hardware reset
Power-on reset
Voltage monitor
1 reset
Voltage monitor
2 reset
Watchdog timer
reset
Software reset
VCA13: Bit in VCA1 register
VCA26, VCA27: Bits in VCA2 register
VW1C0, VW1C1, VW1F0, VW1F1, VW1C6, VW1C7: Bits in VW1C register
VW2C2, VW2C3 bits: Bits in VW2C register
Source
SFR
SFR
Pin, CPU and
SFR bits other than
those listed above
VCA26,
VW1C0 and
VW1C6 bits
VCA13, VCA27,
VW1C1,
VW1F0, VW1F1, VW1C7,
VW2C2 and VW2C3 bits
5. Resets
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