R5F21238DFP#U0 Renesas Electronics America, R5F21238DFP#U0 Datasheet - Page 474

• 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
Figure 21.3
Table 21.8
NOTES:
V
V
trth
por1
por2
Internal reset signal
External power Vcc
Symbol
1. Topr = -40 ° C to 85 ° C (D, J version) / -40 ° C to 125 ° C (K version), unless otherwise specified.
2. This condition (the minimum value of external power V
3. To use the power-on reset function, enable voltage monitor 1 reset by setting the LVD1ON bit in the OFS register to 0, the
4. t
NOTES:
1. When using the voltage monitor 1 digital filter, ensure VCC is 2.0 V or higher during the sampling time.
2. The sampling clock can be selected. Refer to 6. Voltage Detection Circuit for details.
3. V
VW1C0 and VW1C6 bits in the VW1C register to 1 respectively, and the VCA26 bit in the VCA2 register to 1.
reset. When turning on the power for the first time, maintain tw(por1) for 30s or more if -20 ° C ≤ Topr ≤ 125 ° C, maintain t
for 3,000s or more if -40 ° C ≤ Topr < -20 ° C.
w(por1)
det1
(“L” valid)
indicates the voltage detection level of the voltage detection 1 circuit. Refer to 6. Voltage Detection Circuit for details.
indicates the duration the external power V
Power-on reset valid voltage
Power-on reset or voltage monitor 1 valid voltage
External power V
V
V
det1
Power-on Reset Circuit, Voltage Monitor 1 Reset Circuit Electrical Characteristics
Power-on Reset Circuit Electrical Characteristics
por1
(3)
Page 452 of 501
t
w(por1)
CC
rise gradient
Parameter
trth
(4)
fOCO-S
CC
1
must be held below the effective voltage (V
CC
× 32
rise gradient) does not apply if V
t
d(Vdet1-A)
Sampling time
V
V
CC
CC
≤ 3.6 V
> 3.6 V
Condition
(1, 2)
2.0 V
trth
20
20
Min.
por2
−
0
(2)
(2)
21. Electrical Characteristics
≥ 1.0 V.
fOCO-S
Standard
por1
Typ.
1
−
−
−
−
V
) to enable a power on
por2
× 32
Vdet1
2,000
Max.
0.1
−
V
det1
(3)
mV/msec
mV/msec
Unit
V
V
w(por1)
(3)