R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 30

• Manufacturer Part Number: R5F21238DFP#U0
• Description: IC R8C/23 MCU FLASH 48-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/23r

Specifications of R5F21238DFP#U0

• Core Size: 16/32-Bit
• Program Memory Size: 64KB (64K x 8)
• Peripherals: POR, Voltage Detect, WDT
• Core Processor: R8C
• Speed: 20MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Number Of I /o: 41
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• No. Of I/o's: 41
• Ram Memory Size: 3KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Embedded Interface Type: CAN, I2C, UART
• Rohs Compliant: Yes
• Cpu Family: R8C
• Device Core Size: 16b
• Frequency (max): 20MHz
• Interface Type: I2C/UART
• Total Internal Ram Size: 3KB
• # I/os (max): 41
• Number Of Timers - General Purpose: 5
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• On-chip Adc: 12-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 48
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
• Eeprom Size: -
• Lead Free Status / Rohs Status: Compliant

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
1.6
Table 1.5
I: Input
Power Supply Input
Analog Power Supply
Input
Reset Input
MODE
XIN Clock Input
XIN Clock Output
INT Interrupt Input
Key Input Interrupt
Timer RA
Timer RB
Timer RD
Timer RE
Serial Interface
I
Clock Synchronous
Serial I/O with Chip
Select
CAN Module
Reference Voltage Input VREF
A/D Converter
I/O Port
Input Port
2
Table 1.5 lists the Pin Functions and Table 1.6 lists the Pin Name Information by Pin Number.
C Bus Interface
Pin Functions
Type
O: Output
Pin Functions
Page 8 of 501
CLK0
VCC
VSS
AVCC, AVSS
RESET
MODE
XIN
XOUT
INT0 to INT3
KI0 to KI3
TRAIO
TRAO
TRBO
TRDIOA0, TRDIOA1,
TRDIOB0, TRDIOB1,
TRDIOC0, TRDIOC1,
TRDIOD0, TRDIOD1
TRDCLK
TREO
RXD0, RXD1
TXD0, TXD1
SCL
SDA
SSI
SCS
SSCK
SSO
CRX0
CTX0
AN0 to AN11
P0_0 to P0_7,
P1_0 to P1_7,
P2_0 to P2_7,
P3_0, P3_1,
P3_3 to P3_5, P3_7,
P4_3 to P4_5,
P6_0 to P6_7
P4_2, P4_6, P4_7
I/O: Input and output
Symbol
I/O Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
Apply 2.7 V to 5.5 V to the VCC pin. Apply 0 V to the
VSS pin.
Applies the power supply for the A/D converter. Connect
a capacitor between AVCC and AVSS.
Input “L” on this pin resets the MCU.
Connect this pin to VCC via a resistor.
These pins are provided for the XIN clock generation
circuit I/O. Connect a ceramic resonator or a crystal
oscillator between the XIN and XOUT pins. To use an
externally derived clock, input it to the XIN pin and leave
the XOUT pin open.
INT interrupt input pins.
INT0 Timer RD input pins.
INT1 Timer RA input pins.
Key input interrupt input pins.
Timer RA I/O pin.
Timer RA output pin.
Timer RB output pin.
Timer RD I/O ports.
External clock input pin.
Divided clock output pin.
Transfer clock I/O pin.
Serial data input pins.
Serial data output pins.
Clock I/O pin.
Data I/O pin.
Data I/O pin.
Chip-select signal I/O pin.
Clock I/O pin.
Data I/O pin.
CAN data input pin.
CAN data output pin.
Reference voltage input pin to A/D converter.
Analog input pins to A/D converter.
CMOS I/O ports. Each port contains an input/output
select direction register, allowing each pin in that port to
be directed for input or output individually.
Any port set to input can select whether to use a pull-up
resistor or not by a program.
Input only ports.
Description
1. Overview