R5F21237KFP#U0 Renesas Electronics America, R5F21237KFP#U0 Datasheet - Page 474
R5F21237KFP#U0
Manufacturer Part Number
R5F21237KFP#U0
Description
IC R8C/23 MCU FLASH 48LQFP
Manufacturer
Renesas Electronics America
Series
R8C/2x/23r
Datasheet
1.R5F21237DFPU0.pdf
(551 pages)
Specifications of R5F21237KFP#U0
Core Processor
R8C
Core Size
16/32-Bit
Speed
16MHz
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 ~ 125°C
Package / Case
48-LQFP
For Use With
RCDK8C - KIT DEV EVAL FOR CAN 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
Part Number:
R5F21237KFP#U0R5F21237KFP#U1
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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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)
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