Renesas RX Series User Manual

R01UH0823EJ0100 Rev.1.00 Page 143 of 1823
Jul 31, 2019
RX23W Group 6. Resets
Figure 6.1 Operation Examples During a Power-On Reset and Voltage Monitoring 0 Reset
VCC
RES#
4.7 k
(reference value)
RES# pin
*2
POR detection signal
(Low is valid)
Internal reset signal
RSTSR0.PORF
Voltage detection 0
signal (Low is valid)
RSTSR0.LVD0RF
LVD0 enable/disable
signal (Low is valid)
VPOR
*1
Vdet0
*4
External voltage
VCC
Reset by a pin reset
tPOR
*3
tLVD
*3
Set by OFS1.LVDAS
Power-on reset state
Voltage monitoring 0 reset state
Note: For details on the electrical characteristics, see the Electrical Characteristics section.
Note 1. Vdet0 indicates the detection level for a voltage monitoring 0 reset and VPOR indicates the detection level for a
power-on reset.
Note 2. Ensure that the voltage on the RES# pin is always at least VIH.
Note 3. tPOR indicates the period of a power-on reset and tLVD0 indicates the period of a voltage monitoring 0 reset.
Note 4. At the time the power-supply voltage rises, VCC must rise to at least the minimum guaranteed voltage before release
from the POR reset state.

Renesas RX Series Specifications

General

Brand	Renesas
Model	RX Series
Category	Microcontrollers
Language	English