RX230 Datasheet, PDF (155/177 Pages) Renesas Technology Corp – 54-MHz 32-bit RX MCUs, built-in FPU, 88.56 DMIPS, up to 512-KB flash memory

RX230 Group, RX231 Group
VCC
V_POR
1.0V
Internal reset signal
(active-low)
Figure 5.72 Voltage Detection Reset Timing
5. Electrical Characteristics
t_VOFF
V_PORH
t_det
t_det t_POR
VCC
V_POR
V_PORH
1.0 V
Internal reset signal
(active-low)
t_w(POR)
*1
t_det t_POR
Note 1. t_w(POR) is the time required for a power-on reset to be enabled while the external power VCC is being held below the
valid voltage (1.0 V).
When turning the VCC on, maintain a voltage below 1.0V for at least 1.0ms.
Figure 5.73 Power-On Reset Timing
VCC
V_det0
t_VOFF
V_LVH
Internal reset signal
(active-low)
t_det
t_det
t_LVD0
Figure 5.74 Voltage Detection Circuit Timing (Vdet0)
R01DS0261EJ0110 Rev.1.10
Oct 30, 2015
Page 155 of 177