r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 715

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 34.3
Table 34.11
Notes:
Table 34.12
Notes:
V
−
−
−
t
t
d(E-A)
rth
reset signal
Power V
det2
Symbol
Notes:
Symbol
1. The measurement condition is V
2. The voltage detection level varies with detection targets. Select the level with the VCA24 bit in the VCA2 register.
3. Time until the voltage monitor 2 interrupt request is generated after the voltage passes V
4. 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
0.5 V
register to 0.
det0
Circuit 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
Voltage detection level Vdet2_EXT
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
(4)
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)
(2)
(2)
f
OCO-S
1
(3)
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 LVCMP2
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
34. Electrical Characteristics
3.70
1.20
Min.
.
−
−
−
−
Standard
Typ.
f
OCO-S
Standard
−
1
4.00
1.34
0.10
Typ.
1.7
20
−
50,000
× 32
Max.
Page 683 of 740
V
Max.
4.30
1.48
150
100
det0
−
−
(1)
mV/ms
Unit
Unit
µ A
µ s
µ s
V
V
V