R5F2121AJFP#U0 Renesas Electronics America, R5F2121AJFP#U0 Datasheet - Page 15

• Manufacturer Part Number: R5F2121AJFP#U0
• Description: MCU FLASH 96K 5K CMOS 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/21r

Specifications of R5F2121AJFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 96KB (96K x 8)
• Program Memory Type: FLASH
• Ram Size: 5K 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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Appendix 1. Package Dimensions ........................................................................................................ 454
Appendix 2. Connection Examples between Serial Writer and On-Chip Debugging Emulator ............ 455
Appendix 3. Example of Oscillation Evaluation Circuit ......................................................................... 456
Index ..................................................................................................................................................... 457
21.8
21.9
21.8.1
21.9.1
21.9.2
Notes on On-Chip Debugger ...................................................................................................... 452
Notes on Emulator Debugger ..................................................................................................... 453
Notes on Flash Memory ........................................................................................................................ 448
Notes on Noise ...................................................................................................................................... 451
CPU Rewrite Mode ........................................................................................................................... 448
Inserting a Bypass Capacitor between VCC and VSS Pins as a Countermeasure against Noise and
Latch-up ............................................................................................................................................ 451
Countermeasures against Noise Error of Port Control Registers ..................................................... 451
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