R5F21344PJFP RENESAS [Renesas Technology Corp], R5F21344PJFP Datasheet - Page 37

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R5F21344PJFP

Manufacturer Part Number
R5F21344PJFP
Description
R8C/34P Group, R8C/34R Group RENESAS MCU
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
Under development
R8C/34P Group, R8C/34R Group
R01DS0027EJ0010 Rev.0.10
Jul 05, 2011
Figure 5.3
Table 5.11
Notes:
Table 5.12
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 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
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.
Preliminary document
Specifications in this document are tentative and subject to change.
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
= − 40 to 85 ° C (J version) / − 40 to 125 ° C (K version), unless otherwise specified.
= 2.7 V to 5.5 V and T
(2)
f
OCO-S
1
(2)
circuit response time
Voltage detection 0
× 32
CC
opr
must be held below the valid voltage (0.5 V) to enable
(1)
= − 40 to 85 ° C (J version) / − 40 to 125 ° C (K version).
At the falling of V
At the falling of Vcc from
5 V to (Vdet2 − 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 37 of 53
(1)
Unit
Unit
µ A
µ s
µ s
V
V

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