M16C5LD Datasheet, PDF (66/85 Pages) Renesas Technology Corp – RENESAS MCU

M16C/5LD Group, M16C/56D Group
5. Electrical Characteristics
Table 5.10 Power-On Reset Circuit
The measurement condition is T_opr = -40 to 85°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 5.4 Power-On Reset Circuit Electrical Characteristics
Table 5.11 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)
td_(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
150 μs
REJ03B0307-0110 Rev.1.10 Dec 01, 2009
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