R5F21237DFP#U0 Renesas Electronics America, R5F21237DFP#U0 Datasheet - Page 26
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/18/121887/r5f21237dfp_u0_sml.jpg)
R5F21237DFP#U0
Manufacturer Part Number
R5F21237DFP#U0
Description
IC R8C/23 MCU FLASH 48-LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Specifications of R5F21237DFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
20MHz
Connectivity
CAN, 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)
2.7 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN R8C/23R0K521237S000BE - KIT DEV RSK R8C/23R0E521237CPE00 - EMULATOR COMPACT R8C/20/21/22/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
1.3
Figure 1.1
Figure 1.1 shows a Block Diagram.
I/O port
Block Diagram
Timer RD (16 bits
Timer RA (8 bits)
Timer RB (8 bits)
Timer RE (8 bits)
Block Diagram
Watchdog timer
(15 bits)
Timer
×
Page 4 of 501
2 channels
Port P0
)
8
R8C CPU core
(10 bits
clock synchronous serial I/O
clock synchronous serial I/O
R0H
R1H
(8 bits
Port P1
(8 bits × 1 channel)
I
(8 bits × 1 channel)
2
A/D converter
C bus interface or
with chip select
LIN module
(1 channel)
R2
R3
A0
A1
FB
UART or
×
8
UART
×
R1L
R0L
12 channels)
1 channel)
Port P2
8
NOTES:
INTB
PC
SB
USP
1. ROM size depends on MCU type.
2. RAM size depends on MCU type.
FLG
ISP
Port P3
High-speed on-chip oscillator
Low-speed on-chip oscillator
6
generation circuit
System clock
CAN module
(1 channel)
XIN-XOUT
Memory
Port P4
3
Multiplier
3
ROM
RAM
(1)
(2)
Port P6
8
1. Overview
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