32C RENESAS [Renesas Technology Corp], 32C Datasheet - Page 33

• Manufacturer Part Number: 32C
• Description: RENESAS MCU
• Manufacturer: RENESAS [Renesas Technology Corp]

R8C/32C Group
R01DS0009EJ0100 Rev 1.00
Aug. 24, 2010
Figure 5.3
Table 5.9
Notes:
Table 5.10
Notes:
V
−
−
−
t
t
d(E-A)
rth
reset signal
det2
Power V
Symbol
Symbol
Notes:
1. The measurement condition is V
2. Time until the voltage monitor 2 interrupt request is generated after the voltage passes V
3. Necessary time until the voltage detection circuit operates after setting to 1 again after setting the VCA27 bit in the VCA2
1. The measurement condition is T
2. To use the power-on reset function, enable voltage monitor 0 reset by setting the LVDAS bit in the OFS register to 0.
External
Internal
1. V
2. t
V
register to 0.
0.5 V
det0
Circuit of User’s Manual: Hardware (REJ09B0573) for details.
a power-on reset. When turning on the power after it falls with voltage monitor 0 reset disabled, maintain
t
w(por)
w(por)
CC
det0
(1)
Voltage detection level Vdet2_0
Hysteresis width at the rising of Vcc in voltage detection
2 circuit
Voltage detection 2 circuit response time
Voltage detection circuit self power consumption
Waiting time until voltage detection circuit operation
starts
External power V
indicates the voltage detection level of the voltage detection 0 circuit. Refer to 6. Voltage Detection
indicates the duration the external power V
for 1 ms or more.
Voltage Detection 2 Circuit Electrical Characteristics
Power-on Reset Circuit
Power-on Reset Circuit Electrical Characteristics
(3)
t
w(por)
(2)
CC
Parameter
rise gradient
t
rth
Parameter
opr
CC
= −20 to 85°C (N version) / −40 to 85°C (D version), unless otherwise specified.
= 1.8 V to 5.5 V and T
(2)
f
OCO-S
1
(2)
circuit response time
Voltage detection 0
× 32
CC
opr
(1)
must be held below the valid voltage (0.5 V) to enable
= −20 to 85°C (N version) / −40 to 85°C (D version).
At the falling of V
At the falling of Vcc from
5 V to (Vdet2_0 − 0.1) V
VCA27 = 1, V
Condition
Condition
CC
= 5.0 V
CC
t
rth
Min.
det2
0
3.70
Min.
.
5. Electrical Characteristics
−
−
−
−
Standard
f
Typ.
OCO-S
Standard
−
1
4.00
0.10
Typ.
1.7
20
−
50,000 mV/msec
× 32
Max.
V
Max.
4.30
150
100
det0
Page 33 of 52
−
−
(1)
Unit
Unit
µA
µs
µs
V
V