R5F21346CNFP#U0 Renesas Electronics America, R5F21346CNFP#U0 Datasheet - Page 25

• Manufacturer Part Number: R5F21346CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/34Cr

Specifications of R5F21346CNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 43
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

31.
32.
33.
34.
31.1
31.2
31.3
31.4
31.5
31.6
31.7
32.1
32.2
34.1
31.3.1
31.3.2
31.3.3
31.4.1
31.4.2
31.4.3
31.4.4
31.4.5
31.4.6
31.4.7
31.4.8
31.4.9
31.4.10 Data Protect Function ....................................................................................................................... 635
31.4.11 Software Commands ......................................................................................................................... 636
31.4.12 Full Status Check .............................................................................................................................. 646
31.5.1
31.6.1
31.7.1
32.2.1
32.2.2
32.2.3
32.2.4
32.2.5
32.2.6
32.2.7
32.2.8
32.2.9
32.2.10 Stopping Flash Memory .................................................................................................................... 658
32.2.11 Low-Current-Consumption Read Mode ........................................................................................... 659
34.1.1
34.1.2
34.1.3
Flash Memory ............................................................................................................................. 618
Reducing Power Consumption ................................................................................................... 656
Electrical Characteristics ............................................................................................................ 661
Usage Notes ............................................................................................................................... 688
Overview ............................................................................................................................................... 618
Memory Map ......................................................................................................................................... 619
Functions to Prevent Flash Memory from being Rewritten .................................................................. 620
CPU Rewrite Mode ............................................................................................................................... 622
Standard Serial I/O Mode ...................................................................................................................... 648
Parallel I/O Mode .................................................................................................................................. 651
Notes on Flash Memory ........................................................................................................................ 652
Overview ............................................................................................................................................... 656
Key Points and Processing Methods for Reducing Power Consumption ............................................. 656
Notes on Clock Generation Circuit ....................................................................................................... 688
ID Code Check Function .................................................................................................................. 620
ROM Code Protect Function ............................................................................................................ 621
Option Function Select Register (OFS) ............................................................................................ 621
Flash Memory Status Register (FST) ............................................................................................... 623
Flash Memory Control Register 0 (FMR0) ...................................................................................... 625
Flash Memory Control Register 1 (FMR1) ...................................................................................... 627
Flash Memory Control Register 2 (FMR2) ...................................................................................... 629
EW0 Mode ........................................................................................................................................ 631
EW1 Mode ........................................................................................................................................ 631
Suspend Operation ............................................................................................................................ 632
How to Set and Exit Each Mode ....................................................................................................... 633
BGO (BackGround Operation) Function .......................................................................................... 634
ID Code Check Function .................................................................................................................. 648
ROM Code Protect Function ............................................................................................................ 651
CPU Rewrite Mode ........................................................................................................................... 652
Voltage Detection Circuit ................................................................................................................. 656
Ports .................................................................................................................................................. 656
Clocks ............................................................................................................................................... 656
Wait Mode, Stop Mode ..................................................................................................................... 656
Stopping Peripheral Function Clocks ............................................................................................... 656
Timers ............................................................................................................................................... 656
A/D Converter ................................................................................................................................... 656
Clock Synchronous Serial Interface ................................................................................................. 656
Reducing Internal Power Consumption ............................................................................................ 657
Stop Mode ......................................................................................................................................... 688
Wait Mode ........................................................................................................................................ 688
Oscillation Stop Detection Function ................................................................................................. 689
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