R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 15

• Manufacturer Part Number: R5F21257SNFP#U0
• Description: IC R8C/25 MCU FLASH 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21257SNFP#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: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• For Use With: R0K521256S000BE - KIT EVAL STARTER FOR R8C/25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.
Appendix 1. Package Dimensions ........................................................................................................ 481
Appendix 2. Connection Examples between Serial Writer and On-Chip Debugging Emulator ............ 482
Appendix 3. Example of Oscillation Evaluation Circuit ......................................................................... 483
Index ..................................................................................................................................................... 484
21.4
21.5
21.6
21.7
21.8
21.9
21.3.3
21.3.4
21.5.1
21.5.2
21.8.1
21.9.1
21.9.2
Notes on On-Chip Debugger ...................................................................................................... 480
Notes on Serial Interface ....................................................................................................................... 472
Notes on Clock Synchronous Serial Interface ....................................................................................... 473
Notes on Hardware LIN ........................................................................................................................ 474
Notes on A/D Converter ........................................................................................................................ 475
Notes on Flash Memory ........................................................................................................................ 476
Notes on Noise ...................................................................................................................................... 479
Notes on Timer RD ........................................................................................................................... 463
Notes on Timer RE ........................................................................................................................... 469
Notes on Clock Synchronous Serial I/O with Chip Select ............................................................... 473
Notes on I
CPU Rewrite Mode ........................................................................................................................... 476
Inserting a Bypass Capacitor between VCC and VSS Pins as a Countermeasure against Noise and
Latch-up ............................................................................................................................................ 479
Countermeasures against Noise Error of Port Control Registers ..................................................... 479
2
C bus Interface ................................................................................................................ 473
A - 6