R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 441

• 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: -

R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
Figure 19.17
Feb 29, 2008
Mode setting
MODE
RESET
Signal
Pin Connections for Standard Serial I/O Mode 3
40
41
42
43
44
45
46
47
48
49
50
51
52
Voltage from programmer
VSS → VCC
Page 422 of 485
Value
MODE
R8C/24 Group
R8C/25 Group
NOTE:
1. It is not necessary to connect an oscillating circuit
when operating with the on-chip oscillator clock.
Connect oscillator circuit
VSS
Package: PLQP0052JA-A
VCC
26
25
24
23
22
21
20
19
18
17
16
15
14
(1)
19. Flash Memory