R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 94
![IC R8C/23 MCU FLASH 48-LQFP](/photos/12/38/123822/r5f21238dfp_u0_sml.jpg)
R5F21238DFP#U0
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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- Download datasheet (6Mb)
R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 10.1
Interrupt request
Power-on reset
Software reset
CM02, CM05, CM06: Bits in CM0 register
CM10, CM13, CM14, CM16, CM17: Bits in CM1 register
OCD0, OCD1, OCD2: Bits in OCD register
FRA00, FRA01: Bits in FRA0 register
CCLK0, CCLK1, CCLK2: Bits in CCLKR register
RESET
CM05
Oscillation stop detection circuit
CM10 = 1 (stop mode)
XIN
XIN clock
instruction
Clock Generation Circuit
WAIT
CM13
CM13
XOUT
Pulse generation
circuit for clock edge
detection and
charge, discharge
control circuit
S Q
R
S Q
R
Page 72 of 501
FRA00
CM14
CM02
Frequency adjustable
XIN clock
Forcible discharge when OCD0 = 0
Charge,
discharge
circuit
a
FRA1 register
Oscillation
stop
detection
High-speed
on-chip
oscillator
Low-speed
on-chip
oscillator
OCD1
b
CM06 = 0
CM17 to CM16 = 00b
System clock
FRA01 = 1
FRA01 = 0
1/2
OCD2 = 1
OCD2 = 0
fOCO-S
Divider
c
FRA2 register
Oscillation stop detection
interrupt generation
circuit detection
CM06 = 0
CM17 to CM16 = 01b
fOCO
1/2
Watchdog
timer interrupt
Voltage watch
2 interrupt
On-chip oscillator
clock
a
OCD2 bit switch signal
CM14 bit switch signal
b
d
CM06 = 0
CM17 to CM16 = 10b
c
Divider
d
fOCO-F
e
1/2
Power-on
reset
Voltage
detection
circuit
k
g
fOCO40M
h
f2
f4
e
f1
f8
f16
f32
Divider
(1/128)
CM06 = 1
INT0
1/2
Timer RA
Oscillation stop
detection,
watchdog timer, voltage
monitor 2 interrupt
Watchdog
fOCO128
k
timer
CM06 = 0
CM17 to CM16 = 11b
Timer RB
Details of divider
1/2
h
CPU clock
Timer RD
10. Clock Generation Circuit
g
Timer RE
converter
A/D
UART0
By CCLK0,
CCLK1, CCLK2
UART1
fCAN0
SSU/IIC
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