R5F21257SNFP#U0 Renesas Electronics America, R5F21257SNFP#U0 Datasheet - Page 86

• 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 7.35
X: 0 or 1
NOTE:
Table 7.36
X: 0 or 1
NOTES:
Table 7.37
X: 0 or 1
NOTE:
Register
Setting
Register
Register
Value
Setting
Setting
Value
1. Pulled up by setting the PU10 bit in the PUR1 register to 1.
Value
1. Pulled up by setting the PU11 bit in the PUR1 register to 1.
2. Since the XCIN-XCOUT oscillation buffer operates with internal step-down power, the XCOUT output level cannot be used as
1. Pulled up by setting the PU11 bit in the PUR1 register to 1.
Bit
Bit
Bit
the CMOS level signal directly.
Feb 29, 2008
PD4_4
PD4_3
PD4
PD4
X
X
X
X
0
1
X
X
X
X
0
1
Port P4_3/XCIN
Port P4_4/XCOUT
Port P4_5/INT0
PD4_5
PD4
0
1
0
CM04
CM0
CM04
CM0
0
0
1
1
1
1
0
0
1
1
1
1
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CM10
CM10
X
X
0
0
1
0
X
X
0
0
1
0
CM1
INT0EN
CM1
INTEN
CM12
X
X
1
CM12
X
X
0
1
0
1
0
1
X
X
0
1
0
1
0
1
Oscillation
Circuit specifications
Oscillation
buffer
Circuit specifications
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Input port
Output port
INT0 input
buffer
OFF
OFF
OFF
OFF
ON
ON
ON
ON
Feedback
(1)
resistor
Feedback
OFF
OFF
OFF
OFF
OFF
resistor
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
Input port
Output port
XCIN-XCOUT oscillation (on-chip feedback resistor
enabled)
XCIN-XCOUT oscillation (on-chip feedback resistor
disabled)
XCIN-XCOUT oscillation stop
External XCOUT output (inverted output of XCIN)
Input port
Output port
XCIN-XCOUT oscillation (on-chip feedback resistor
enabled)
XCIN-XCOUT oscillation (on-chip feedback resistor
disabled)
XCIN-XCOUT oscillation stop
External XCIN input
(1)
(1)
Function
Function
Function
7. Programmable I/O Ports
(2)