RX220_15 Datasheet, PDF (92/107 Pages) Renesas Technology Corp – Renesas MCUs

RX220 Group
VCC
V_POR
5. Electrical Characteristics
t_VOFF
Internal reset signal
(active-low)
Figure 5.51 Voltage Detection Reset Timing
t_det t_det t_POR
VCC
V_POR
0.9 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 (0.9 V).
When VCC turns on, maintain t_w(por) for 1 ms or more.
Figure 5.52 Power-on Reset Timing
t_VOFF
VCC
Internal reset signal
(active-low)
V_det0
V_POR
t_det
Figure 5.53 Voltage Detection Circuit Timing (V_det0)
t_det
t_LVD0
R01DS0130EJ0110 Rev.1.10
Dec 20, 2013
Page 92 of 105