R5F21236KFP#U0 Renesas Electronics America, R5F21236KFP#U0 Datasheet - Page 66

• Manufacturer Part Number: R5F21236KFP#U0
• Description: IC R8C/23 MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/23r

Specifications of R5F21236KFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, Voltage Detect, WDT
• Number Of I /o: 41
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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: -

R8C/22 Group, R8C/23 Group
Rev.2.00 Aug 20, 2008
REJ09B0251-0200
Figure 6.8
When the VW2C1 bit is set
to 0 (digital filter enabled)
When the VW2C1 bit is
set to 1 (digital filter
disabled) and the
VW2C7 bit is set to 0
(Vdet2 or above)
When the VW2C1 bit is
set to 1 (digital filter
disabled) and the
VW2C7 bit is set to 1
(Vdet2 or below)
VCA13 : Bit in VCA1 register
VW2C1, VW2C2, VW2C6, VW2C7 : Bit in VW2C register
Example of Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset Operation
VCA13 bit
VW2C2 bit
Voltage monitor 2
interrupt request
(VW2C6 = 0)
Internal reset signal
(VW2C6 = 1)
VW2C2 bit
Voltage monitor 2
interrupt request
(VW2C6 = 0)
VW2C2 bit
Voltage monitor 2
interrupt request
(VW2C6 = 0)
Internal reset signal
(VW2C6 = 1)
The above applies to the following conditions.
NOTE:
• VCA27 bit in VCA2 register = 1 (voltage detection 2 circuit enabled)
• VW2C0 bit in VW2C register = 1 (enables voltage monitor 2 interrupt and voltage monitor 2 reset)
1. When the voltage monitor 1 reset is not used, set the power supply to VCC ≥ 2.7.
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2.7 V
Vdet2
(1)
VCC
1
0
1
0
1
0
1
0
Sampling clock of digital filter
x 4 cycles
Set to 0 by interrupt
request acknowledgement
Set to 0 by a program
Set to 0 by interrupt request
acknowledgement
Set to 0 by a program
Sampling clock of digital filter
x 4 cycles
6. Voltage Detection Circuit
Set to 0 by a program
Set to 0 by interrupt
request
acknowledgement