R5F21334CNFP#U0 Renesas Electronics America, R5F21334CNFP#U0 Datasheet - Page 22

• Manufacturer Part Number: R5F21334CNFP#U0
• Description: MCU 1KB FLASH 16K ROM 32-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/33Cr

Specifications of R5F21334CNFP#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: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K 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: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

31.
32.
33.
30.5
30.6
30.7
31.1
31.2
33.1
33.2
30.4.1
30.4.2
30.4.3
30.4.4
30.4.5
30.4.6
30.4.7
30.4.8
30.4.9
30.4.10 Data Protect Function ....................................................................................................................... 507
30.4.11 Software Commands ......................................................................................................................... 508
30.4.12 Full Status Check .............................................................................................................................. 518
30.5.1
30.6.1
30.7.1
31.2.1
31.2.2
31.2.3
31.2.4
31.2.5
31.2.6
31.2.7
31.2.8
31.2.9
31.2.10 Stopping Flash Memory .................................................................................................................... 530
31.2.11 Low-Current-Consumption Read Mode ........................................................................................... 531
31.2.12 Others ................................................................................................................................................ 532
33.1.1
33.1.2
33.1.3
33.1.4
33.2.1
33.2.2
33.2.3
33.2.4
33.2.5
Reducing Power Consumption ................................................................................................... 528
Electrical Characteristics ............................................................................................................ 533
Usage Notes ............................................................................................................................... 560
Standard Serial I/O Mode ...................................................................................................................... 520
Parallel I/O Mode .................................................................................................................................. 523
Notes on Flash Memory ........................................................................................................................ 524
Overview ............................................................................................................................................... 528
Key Points and Processing Methods for Reducing Power Consumption ............................................. 528
Notes on Clock Generation Circuit ....................................................................................................... 560
Notes on Interrupts ................................................................................................................................ 562
Flash Memory Status Register (FST) ............................................................................................... 495
Flash Memory Control Register 0 (FMR0) ...................................................................................... 497
Flash Memory Control Register 1 (FMR1) ...................................................................................... 499
Flash Memory Control Register 2 (FMR2) ...................................................................................... 501
EW0 Mode ........................................................................................................................................ 503
EW1 Mode ........................................................................................................................................ 503
Suspend Operation ............................................................................................................................ 504
How to Set and Exit Each Mode ....................................................................................................... 505
BGO (BackGround Operation) Function .......................................................................................... 506
ID Code Check Function .................................................................................................................. 520
ROM Code Protect Function ............................................................................................................ 523
CPU Rewrite Mode ........................................................................................................................... 524
Voltage Detection Circuit ................................................................................................................. 528
Ports .................................................................................................................................................. 528
Clocks ............................................................................................................................................... 528
Wait Mode, Stop Mode ..................................................................................................................... 528
Stopping Peripheral Function Clocks ............................................................................................... 528
Timers ............................................................................................................................................... 528
A/D Converter ................................................................................................................................... 528
Clock Synchronous Serial Interface ................................................................................................. 528
Reducing Internal Power Consumption ............................................................................................ 529
Stop Mode ......................................................................................................................................... 560
Wait Mode ........................................................................................................................................ 560
Oscillation Stop Detection Function ................................................................................................. 561
Oscillation Circuit Constants ............................................................................................................ 561
Reading Address 00000h .................................................................................................................. 562
SP Setting .......................................................................................................................................... 562
External Interrupt and Key Input Interrupt ....................................................................................... 562
Changing Interrupt Sources .............................................................................................................. 563
Rewriting Interrupt Control Register ................................................................................................ 564
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