R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 15

• 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

21.
22.
20.4
20.5
20.6
20.7
22.1
22.2
22.3
22.4
22.5
22.6
22.7
22.8
22.9
22.10
20.3.2
20.4.1
20.4.2
20.4.3
20.4.4
20.4.5
20.5.1
20.6.1
20.7.1
22.1.1
22.1.2
22.1.3
22.1.4
22.2.1
22.2.2
22.2.3
22.2.4
22.2.5
22.3.1
22.3.2
22.3.3
22.3.4
22.5.1
22.5.2
22.7.1
22.7.2
22.7.3
22.9.1
22.10.1 Inserting a Bypass Capacitor between VCC and VSS Pins as a Countermeasure against Noise and
22.10.2 Countermeasures against Noise Error of Port Control Registers ..................................................... 494
Electrical Characteristics ............................................................................................................ 447
Usage Notes ............................................................................................................................... 467
CPU Rewrite Mode ............................................................................................................................... 421
Standard Serial I/O Mode ...................................................................................................................... 439
Parallel I/O Mode .................................................................................................................................. 443
Notes on Flash Memory ........................................................................................................................ 444
Notes on Clock Generation Circuit ....................................................................................................... 467
Notes on Interrupts ................................................................................................................................ 468
Notes on Timers .................................................................................................................................... 471
Notes on Serial Interface ....................................................................................................................... 483
Clock Synchronous Serial Interface ...................................................................................................... 484
Notes on Hardware LIN ........................................................................................................................ 485
Notes on CAN Module .......................................................................................................................... 486
Notes on Flash Memory ........................................................................................................................ 491
Notes on A/D Converter ....................................................................................................................... 490
Notes on Noise ..................................................................................................................................... 494
ROM Code Protect Function ............................................................................................................ 420
EW0 Mode ........................................................................................................................................ 422
EW1 Mode ........................................................................................................................................ 422
Software Commands ......................................................................................................................... 431
Status Registers ................................................................................................................................. 436
Full Status Check .............................................................................................................................. 437
ID Code Check Function .................................................................................................................. 439
ROM Code Protect Function ............................................................................................................ 443
CPU Rewrite Mode ........................................................................................................................... 444
Stop Mode ......................................................................................................................................... 467
Wait Mode ........................................................................................................................................ 467
Oscillation Stop Detection Function ................................................................................................. 467
Oscillation Circuit Constants ............................................................................................................ 467
Reading Address 00000h .................................................................................................................. 468
SP Setting .......................................................................................................................................... 468
External Interrupt and Key Input Interrupt ....................................................................................... 468
Changing Interrupt Sources .............................................................................................................. 469
Changing Interrupt Control Register Contents ................................................................................. 470
Notes on Timer RA ........................................................................................................................... 471
Notes on Timer RB ........................................................................................................................... 472
Notes on Timer RD ........................................................................................................................... 476
Notes on Timer RE ........................................................................................................................... 482
Notes on Clock Synchronous Serial I/O with Chip Select ............................................................... 484
Notes on I
Reading C0STR Register .................................................................................................................. 486
Performing CAN Configuration ....................................................................................................... 488
Suggestions to Reduce Power Consumption .................................................................................... 489
CPU Rewrite Mode ........................................................................................................................... 491
Latch-up ............................................................................................................................................ 494
2
C Bus Interface ............................................................................................................... 484
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