R5F21257SYFP#U0 Renesas Electronics America, R5F21257SYFP#U0 Datasheet - Page 78
![MCU 2KB FLASH 48K 52-LQFP](/photos/28/61/286101/52-lqfp_sml.jpg)
R5F21257SYFP#U0
Manufacturer Part Number
R5F21257SYFP#U0
Description
MCU 2KB FLASH 48K 52-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/25r
Specifications of R5F21257SYFP#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 ~ 105°C
Package / Case
52-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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R8C/24 Group, R8C/25 Group
Rev.3.00
REJ09B0244-0300
7.4
Table 7.4
X: 0 or 1
NOTE:
Table 7.5
X: 0 or 1
NOTE:
Table 7.6
X: 0 or 1
NOTE:
Table 7.7
X: 0 or 1
NOTE:
Table 7.8
X: 0 or 1
NOTE:
Tables 7.4 to 7.47 list the port settings.
Register
Register
Register
Register
Register
Setting
Setting
Setting
Setting
Setting
Value
1. Pulled up by setting the PU00 bit in the PUR0 register to 1.
Value
1. Pulled up by setting the PU00 bit in the PUR0 register to 1.
Value
1. Pulled up by setting the PU00 bit in the PUR0 register to 1.
Value
1. Pulled up by setting the PU00 bit in the PUR0 register to 1.
Value
1. Pulled up by setting the PU01 bit in the PUR0 register to 1.
Bit
Bit
Bit
Bit
Bit
Port settings
Feb 29, 2008
PD0_0
PD0_1
PD0_2
PD0_3
PD0_4
PD0
PD0
PD0
PD0
PD0
Port P0_0/AN7
Port P0_1/AN6
Port P0_2/AN5
Port P0_3/AN4
Port P0_4/AN3
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
Page 59 of 485
CH2
CH2
CH2
CH2
CH2
X
X
X
X
X
X
X
X
X
X
1
1
1
1
0
CH1
CH1
CH1
CH1
CH1
X
X
X
X
X
X
X
X
X
X
1
1
0
0
1
ADCON0
ADCON0
ADCON0
ADCON0
ADCON0
CH0
CH0
CH0
CH0
CH0
X
X
X
X
X
X
X
X
X
X
1
0
1
0
1
ADGSEL0
ADGSEL0
ADGSEL0
ADGSEL0
ADGSEL0
X
X
0
X
X
0
X
X
0
X
X
0
X
X
0
Input port
Output port
A/D converter input (AN7)
Input port
Output port
A/D converter input (AN6)
Input port
Output port
A/D converter input (AN5)
Input port
Output port
A/D converter input (AN4)
Input port
Output port
A/D converter input (AN3)
(1)
(1)
(1)
(1)
(1)
7. Programmable I/O Ports
Function
Function
Function
Function
Function
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