M16C65C_15 Datasheet, PDF (59/112 Pages) Renesas Technology Corp – RENESAS MCU

M16C/65C Group
5. Electrical Characteristics
Table 5.13 Voltage Detector 2 Electrical Characteristics
The measurement condition is V_CC1 = 2.7 to 5.5 V, T_opr = -20°C to 85°C/-40°C to 85°C, unless otherwise specified.
Symbol
Parameter
Condition
Standard
Unit
Min. Typ. Max.
V_det2
-
Voltage detection level Vdet2_0
Hysteresis width at the rising of V_CC1 in voltage
detector 2
When V_CC1 is falling
3.70 4.00 4.30 V
0.15
V
-
Voltage detector 2 response time ⁽²⁾
When V_CC1 falls from 5
V to (Vdet2_0 - 0.1) V
200 μs
-
t_d(E-A)
Voltage detector self power consumption
VC27 = 1, V_CC1 = 5.0 V
Waiting time until voltage detector operation starts ⁽¹⁾
1.7
μA
100 μs
Notes:
1. Necessary time until the voltage detector operates after setting to 1 again after setting the VC27 bit in the VCR2
register to 0.
2. Time from when passing the V_det2 until when a voltage monitor 2 reset is generated.
Table 5.14 Power-On Reset Circuit
The measurement condition is V_CC1 = 2.0 to 5.5 V, T_opr = -20°C to 85°C/ -40°C to 85°C, unless otherwise specified.
Symbol
Parameter
Condition
Standard
Unit
Min. Typ. Max.
V_por1
t_rth
t_w(por)
Voltage at which power-on reset enabled ⁽¹⁾
External power V_CC1 rise gradient
Time necessary to enable power-on reset
0.5
V
2.0
50000 mV/ms
300
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. Also, set the VDSEL1 bit to 0 (Vdet0_2).
Vdet0 ⁽¹⁾
t rth
VCC1
Vpor1
tw(por)
t rth
Voltage detection 0
circuit response time
Internal
reset signal
1
× 32
f_OCO-S
Note:
1. V_det0 indicates the voltage detection level of the voltage detection 0 circuit.
Figure 5.3 Power-On Reset Circuit Electrical Characteristics
Vdet0 ⁽¹⁾
1
× 32
f_OCO-S
R01DS0015EJ0110 Rev.1.10
Jul 31, 2012
Page 59 of 109