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R5F21143DSP View Datasheet(PDF) - Renesas Electronics

Part NameR5F21143DSP Renesas
Renesas Electronics Renesas
DescriptionR8C/14 Group, R8C/15 Group SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
R5F21143DSP Datasheet PDF : 277 Pages
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R8C/14 Group, R8C/15 Group
6. Voltage Detection Circuit
Vdet2
(Typ. 3.30V)
VCC
2.7V(1)
VCA13 Bit
VW2C2 Bit
“1”
“0”
Sampling Clock of Digital Filter
x 4 Cycles
“1”
“0”
When the VW2C1 bit is set
to “0” (digital filter enabled)
Voltage Monitor 2
Interrupt Request
(VW2C6=0)
Internal Reset Signal
(VW2C6=1)
When the VW2C1 bit is
set to “1” (digital filter
disabled) and the
VW2C7 bit is set to “0”
(Vdet2 or above)
“1”
VW2C2 Bit
“0”
Voltage Monitor 2
Interrupt Request
(VW2C6=0)
When the VW2C1 bit is
set to “1” (digital filter
disabled) and the
VW2C7 bit is set to “1”
(Vdet2 or below)
“1”
VW2C2 Bit
“0”
Voltage Monitor 2
Interrupt Request
(VW2C6=0)
Internal Reset Signal
(VW2C6=1)
Sampling Clock of Digital Filter
x 4 Cycles
Set to “0” by a program
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
Set to “0” by interrupt
request
acknowledgement
VCA13 : Bit in VCA1 Register
VW2C1, VW2C2, VW2C6, VW2C7 : Bit in VW2C Register
The above applies to the following conditions.
• 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)
NOTES:
1. When the voltage monitor 1 reset is not used, set the power supply to VCC 2.7.
Figure 6.8 Operating Example of Voltage Monitor 2 Interrupt and Voltage Monitor 2 Reset
Rev.2.10 Jan 19, 2006 Page 34 of 253
REJ09B0164-0210
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 Overview
This MCU is built using the high-performance silicon gate CMOS process using a R8C/Tiny Series CPU core and is packaged in a 20-pin plastic molded LSSOP. This MCU operates using sophisticated instructions featuring a high level of instruction efficiency. With 1 Mbyte of address space, it is capable of executing instructions at high speed. Furthermore, the data flash ROM (1KB × 2blocks) is embedded in the R8C/15 group.
The difference between R8C/14 and R8C/15 groups is only the existence of the data flash ROM. Their peripheral functions are the same.

 Applications
Electric household appliance, office equipment, housing equipment (sensor, security), general industrial equipment, audio, etc.

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