RX21A_15 Datasheet, PDF (117/132 Pages) Renesas Technology Corp – Renesas MCUs

RX21A Group
5. Electrical Characteristics
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 5.65 Power-on Reset Timing
VCC
V_det0
t_VOFF
Internal reset signal
(active-low)
t_det
t_LVD0
Figure 5.66 Voltage Detection Circuit Timing (V_det0)
R01DS0129EJ0110 Rev.1.10
Aug 28, 2014
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