M16C5M Datasheet, PDF (129/159 Pages) Renesas Technology Corp – RENESAS MCU

M16C/5M Group, M16C/57 Group
5. Electrical Characteristics
K-Version
Table 5.60 Power-On Reset Circuit
The measurement condition is T_opr = -40°C to 125°C, unless otherwise specified.
Symbol
Parameter
Condition
Standard
Unit
Min. Typ. Max.
t_rth
External power V_CC rise gradient
t_fth
External power V_CC fall gradient
2.0
50000 mV/ms
50000 mV/ms
V_por
t_w(por)
Voltage at which power-on reset enabled ⁽¹⁾
Hold time at which power-on reset enabled
0.1
V
1.0
ms
Note:
1. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS1 address
to 0.
Vdet0
t rth
External Power VCC
Vpor
tw(por)
Internal
reset signal
t fth
1
× 128
f_OCO-S
Vdet0
t rth
1
× 128
f _OCO-S
Figure 5.35 Power-On Reset Circuit Electrical Characteristics
Table 5.61 Power Supply Circuit Timing Characteristics
Symbol
Parameter
Measuring Condition
t_d(P-R)
Time for Internal Power Supply Stabilization VCC = 3.0 V to 5.5V
During Powering-On
t_d(R-S)
t_d(W-S)
STOP Release Time
Low Power Mode Wait Mode Release Time
Note:
1. When V_CC = 5 V.
Standard
Unit
Min. Typ. Max.
5
ms
300 μs
300 μs
REJ03B0267-0101 Rev.1.01
Jul 23, 2010
Page 129 of 156