R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 85

• 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
Table 7.31
X: 0 or 1
NOTES:
Table 7.32
X: 0 or 1
NOTES:
Table 7.33
X: 0 or 1
NOTE:
Table 7.34
Register
Setting
Register
Register
Register
Value
Setting
Setting
Setting
Value
1. Pulled up by setting the PU07 bit in the PUR0 register to 1.
2. N-channel open drain output by setting the CSOS bit in the SSMR2 register to 1 when this pin functions as output.
Value
1. Pulled up by setting the PU07 bit in the PUR0 register to 1.
2. N-channel open drain output by setting the CSOS bit in the SSMR2 register to 1 when this pin functions as output.
Value
1. Pulled up by setting the PU07 bit in the PUR0 register to 1.
Bit
Bit
Bit
Bit
Feb 29, 2008
PD3_5
PD3_7
PD3
PD3
PD3_4
X
X
X
0
0
1
1
PD3
X
X
X
0
0
1
1
Port P3_4/SDA/SCS
Port P3_5/SCL/SSCK
Port P3_7/SSO
Port P4_2/VREF
X
X
X
0
0
1
1
ADCON1
Clock Synchronous Serial I/O with Chip Select
SSCK output control
VCUT
Clock Synchronous Serial I/O with Chip Select
(Refer to Table 16.4 Association between
SSO output control
(Refer to Table 16.4 Association between
Communication Modes and I/O Pins.)
0
1
Communication Modes and I/O Pins.)
Page 66 of 485
CSS1
X
0
0
0
0
0
1
1
0
0
0
0
0
1
1
X
X
0
0
0
1
1
SSMR2
CSS0
Input port
Input port/VREF input
X
0
0
0
0
1
0
1
SSCK input control
SSO input control
IICSEL
PMR
0
0
0
0
1
0
0
X
X
X
X
0
0
0
0
1
0
0
1
0
0
ICCR1
ICE
IICSEL
X
X
X
X
0
0
1
PMR
SSMR2
SOOS
0
X
0
X
0
0
1
X
X
0
0
0
0
1
Input port
Output port
SCS input
SCS output
SDA input/output
ICCR1
ICE
Function
X
X
0
0
0
0
1
IICSEL
PMR
0
1
0
1
0
0
0
Input port
Output port
SSCK input
SSCK output
SCL input/output
(1)
(2)
(2)
Input port
Output port
SSO input
SSO output (CMOS output)
SSO output (N-channel open-drain
output)
(1)
7. Programmable I/O Ports
Function
(2)
(2)
(1)
Function
Function