R5F21256SNFP#U0 Renesas Electronics America, R5F21256SNFP#U0 Datasheet - Page 5

• 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: -

Using This Manual
This software manual is written for the R8C/Tiny Series. It applies to all microcomputers
integrating the R8C/Tiny Series CPU core.
The reader of this manual is assumed to have a basic knowledge of electrical circuits, logic
circuits, and microcomputers.
This manual consists of six chapters. The chapters and the subjects they cover are listed
below.
• Outline of the R8C/Tiny Series and its features ...............................Chapter 1, “Overview”
• Operation of addressing modes ....................................................... Chapter 2, “Addressing Modes”
• Instruction functions (syntax, operation, function, selectable src/dest (labels), flag changes,
description example, related instructions) .......................................... Chapter 3, “Functions”
• Instruction codes and cycles ............................... Chapter 4, “Instruction Codes/Number of Cycles”
• Instruction interrupts ........................................................................... Chapter 5, “Interrupts”
• How to calculate the number of cycles ................ Chapter 6, “Calculating the Number of Cycles”
This manual also contains quick reference sections immediately following the table of con-
tents. These quick reference sections can be used to rapidly find the pages referring to
specific functions, instruction codes, and cycle counts.
• Alphabetic listing by mnemonic ................................ Quick Reference in Alphabetic Order
• Listing of mnemonics by function .......................................... Quick Reference by Function
• Listing of addressing modes by mnemonic ........... Quick Reference by Addressing Mode
A Q&A table, symbols, a glossary, and an index are appended at the end of this manual.