R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 14

• Manufacturer Part Number: R5F21256SNFP#U0
• Description: IC R8C MCU FLASH 32K 52LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/25r

Specifications of R5F21256SNFP#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: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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: -

18.
19.
20.
21.
17.5
17.6
18.1
18.2
18.3
18.4
18.5
18.6
18.7
19.1
19.2
19.3
19.4
19.5
19.6
19.7
21.1
21.2
21.3
17.4.4
19.3.1
19.3.2
19.4.1
19.4.2
19.4.3
19.4.4
19.4.5
19.5.1
19.6.1
19.7.1
21.1.1
21.1.2
21.1.3
21.1.4
21.2.1
21.2.2
21.2.3
21.2.4
21.2.5
21.3.1
21.3.2
A/D Converter ............................................................................................................................. 383
Flash Memory ............................................................................................................................. 397
Electrical Characteristics ............................................................................................................ 428
Usage Notes ............................................................................................................................... 454
Interrupt Requests .................................................................................................................................. 381
Notes on Hardware LIN ........................................................................................................................ 382
One-Shot Mode ..................................................................................................................................... 387
Repeat Mode .......................................................................................................................................... 390
Sample and Hold ................................................................................................................................... 393
A/D Conversion Cycles ......................................................................................................................... 393
Internal Equivalent Circuit of Analog Input .......................................................................................... 394
Output Impedance of Sensor under A/D Conversion ............................................................................ 395
Notes on A/D Converter ........................................................................................................................ 396
Overview ............................................................................................................................................... 397
Memory Map ......................................................................................................................................... 398
Functions to Prevent Rewriting of Flash Memory ................................................................................ 400
CPU Rewrite Mode ............................................................................................................................... 402
Standard Serial I/O Mode ...................................................................................................................... 420
Parallel I/O Mode .................................................................................................................................. 424
Notes on Flash Memory ........................................................................................................................ 425
Notes on Clock Generation Circuit ....................................................................................................... 454
Notes on Interrupts ................................................................................................................................ 455
Notes on Timers .................................................................................................................................... 458
Hardware LIN End Processing ......................................................................................................... 380
ID Code Check Function .................................................................................................................. 400
ROM Code Protect Function ............................................................................................................ 401
EW0 Mode ........................................................................................................................................ 403
EW1 Mode ........................................................................................................................................ 403
Software Commands ......................................................................................................................... 412
Status Registers ................................................................................................................................. 417
Full Status Check .............................................................................................................................. 418
ID Code Check Function .................................................................................................................. 420
ROM Code Protect Function ............................................................................................................ 424
CPU Rewrite Mode ........................................................................................................................... 425
Stop Mode ......................................................................................................................................... 454
Wait Mode ........................................................................................................................................ 454
Oscillation Stop Detection Function ................................................................................................. 454
Oscillation Circuit Constants ............................................................................................................ 454
Reading Address 00000h .................................................................................................................. 455
SP Setting .......................................................................................................................................... 455
External Interrupt and Key Input Interrupt ....................................................................................... 455
Changing Interrupt Sources .............................................................................................................. 456
Changing Interrupt Control Register Contents ................................................................................. 457
Notes on Timer RA ........................................................................................................................... 458
Notes on Timer RB ........................................................................................................................... 459
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