R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 512

• 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: -

Rev.
0.20
1.00
REVISION HISTORY
May 31, 2006
Jan 16, 2006
Date
all pages “Under development” deleted
5 to 6
Page
441
442
443
444
447
462
465
467
468
469
470
15
19
3
4
9
Table 20.29 Electrical Characteristics (6) [Vcc = 2.2 V] revised
21.7 Notes on A/D Converter
Appendix Figure 3.1 Example of Oscillation Evaluation Circuit revised
Table 20.30 XIN Input, XCIN Input revised
Table 20.31 TRAIO Input, INT1 Input revised
Table 20.32 Serial Interface revised
Table 20.33 External Interrupt INTi (i = 0, 2, 3) Input
21.1.1 Stop Mode and 21.1.2 Wait Mode → 21.1.1 Stop Mode and Wait
Mode revised
21.1.3 Oscillation Stop Detection Function;
21.1.4 fOCO40M added
21.2.7 Entering Wait Mode after Oscillation Stop Detection Interrupt is
Detected added
21.8.1.9 Program and Erase Voltage for Flash Memory added
22. Notes for On-Chip Debugger;
Appendix 1. Package Dimensions;
Appendix Figure 2.1 Connection Example with M16C Flash Starter
(M3A-0806) revised
Appendix Figure 2.2 Connection Example with E8 Emulator
(R0E000080KCE00) revised
Table 1.2 Functions and Specifications for R8C/25 Group revised
Figure 1.1 Block Diagram;
Table 1.3 Product Information for R8C/24 Group and Table 1.4 Product
Information for R8C/25 Group; A part of (D) mark is deleted.
Table 1.6 Pin Name Information by Pin Number NOTE1 added
Table 4.1 SFR Information(1);
Table 4.5 SFR Information(5);
R8C/24 Group, R8C/25 Group Hardware Manual
“Since ... is 2 MHz or below, ...” → “Since ... is below 2 MHz. ...” revised
“To use this MCU with supply voltage ... to the chip externally.” added
“ • Connect 0.1 µ F capacitor ... VSS pin.” →
“ • Connect 0.1 µ F capacitor ... AVSS pin.” revised
(1) and (6) added, “(2) Do not use addresses ... addresses.” deleted
“TBD” → “PLQP0052JA-A (52P6A-A)” added
“System clock generator” → “System clock generation circuit” revised
001Ch: “00h” → “00h, 10000000b” revised
0029h: High-Speed On-Chip Oscillator Control Register 4 FRA4 When shipping added
002Bh: High-Speed On-Chip Oscillator Control Register 6 FRA6 When shipping added
NOTE6 added
0118h: Timer RE Second Data Register / Counter Data Register,
0119h: Timer RE Minute Data Register / Compare Data Register
register name revised
C - 8
Description
Summary