R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 511

• 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
REVISION HISTORY
Jan 16, 2006
Date
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19.4.2.16 FMR47 Bit revised
Table 20.11 High-speed On-Chip Oscillator Circuit Electrical
Figure 19.7 FMR4 Register NOTE4 revised
Figure 19.11 Process to Reduce Power Consumption in High-Speed On-
Chip Oscillator Mode, Low-Speed On-Chip Oscillator Mode (XIN Clock
Stops) and Low-Speed Clock Mode (XIN Clock Stops) revised
19.4.3.5 Block Erase;
Figure 19.14 Block Erase Command (When Using Erase-Suspend
Function) revised
Figure 19.15 Full Status Check and Handling Procedure for Individual
Errors revised
Figure 19.16 Pin Connections for Standard Serial I/O Mode revised
19.7.1.9 Program and Erase Voltage for Flash Memory added
Table 20.1 Absolute Maximum Ratings;
Table 20.2 Recommended Operating Conditions revised
Table 20.3 A/D Converter Characteristics revised
Table 20.4 Flash Memory (Program ROM) Electrical Characteristics
revised
Table 20.5 Flash Memory (Data flash Block A, Block B) Electrical revised
Table 20.6 Voltage Detection 0 Circuit Electrical Characteristics revised
Table 20.7 Voltage Detection 1 Circuit Electrical Characteristics revised
Table 20.8 Voltage Detection 2 Circuit Electrical Characteristics revised
Table 20.9 Reset Circuit Electrical Characteristics (When Using Voltage
Monitor 0 Reset) NOTE2 revised
Characteristics revised
Table 20.12 Low-speed On-Chip Oscillator Circuit Electrical
Characteristics revised
Table 20.13 Power Supply Circuit Timing Characteristics revised
Table 20.14 Timing Requirements of Clock Synchronous Serial I/O with
Chip Select revised
Table 20.15 Timing Requirements of I
Table 20.16 Electrical Characteristics (1) [V
Table 20.17 Electrical Characteristics (2) [V
Table 20.18 XIN Input, XCIN Input revised
Table 20.20 Serial Interface revised
Table 20.22 Electrical Characteristics (3) [V
Table 20.23 Electrical Characteristics (4) [Vcc = 3 V] revised
Table 20.24 XIN Input, XCIN Input revised
Table 20.26 Serial Interface revised
Table 20.28 Electrical Characteristics (5) [V
R8C/24 Group, R8C/25 Group Hardware Manual
“The block erase command cannot be ... program-suspend.” added
“V
CC
” → ”V
CC
/AV
C - 7
CC
” revised
Description
Summary
2
C bus Interface NOTE1 revised
CC
CC
CC
CC
= 5 V] revised
= 5 V] revised
= 3 V] revised
= 2.2 V] revised