32C datasheet(32/55 Pages) RENESAS

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R8C/32C Group

5. Electrical Characteristics

R01DS0009EJ0100 Rev 1.00

Page 32 of 52

Aug. 24, 2010

Notes:

The measurement condition is VCC = 1.8 V to 5.5 V and Topr =

−20 to 85°C (N version) / −40 to 85°C (D version).

Select the voltage detection level with bits VDSEL0 and VDSEL1 in the OFS register.

Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA25 bit in the VCA2

Time until the voltage monitor 0 reset is generated after the voltage passes Vdet0.

Notes:

The measurement condition is VCC = 1.8 V to 5.5 V and Topr =

−20 to 85°C (N version) / −40 to 85°C (D version).

Select the voltage detection level with bits VD1S0 to VD1S3 in the VD1LS register.

Time until the voltage monitor 1 interrupt request is generated after the voltage passes Vdet1.

Necessary time until the voltage detection circuit operates when setting to 1 again after setting the VCA26 bit in the VCA2

Table 5.7

Voltage Detection 0 Circuit Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

Vdet0

Voltage detection level Vdet0_0 (2)

1.80

1.90

2.05

Voltage detection level Vdet0_1 (2)

2.15

2.35

2.50

Voltage detection level Vdet0_2 (2)

2.70

2.85

3.05

Voltage detection level Vdet0_3 (2)

3.55

3.80

4.05

−

Voltage detection 0 circuit response time (4)

At the falling of VCC from 5 V

to (Vdet0_0

− 0.1) V

−

150

µs

−

Voltage detection circuit self power consumption

VCA25 = 1, VCC = 5.0 V

−

1.5

−µA

td(E-A)

Waiting time until voltage detection circuit

operation starts (3)

−−

100

µs

Table 5.8

Voltage Detection 1 Circuit Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

Vdet1

Voltage detection level Vdet1_0 (2)

At the falling of VCC

2.00

2.20

2.40

Voltage detection level Vdet1_1 (2)

At the falling of VCC

2.15

2.35

2.55

Voltage detection level Vdet1_2 (2)

At the falling of VCC

2.30

2.50

2.70

Voltage detection level Vdet1_3 (2)

At the falling of VCC

2.45

2.65

2.85

Voltage detection level Vdet1_4 (2)

At the falling of VCC

2.60

2.80

3.00

Voltage detection level Vdet1_5 (2)

At the falling of VCC

2.75

2.95

3.15

Voltage detection level Vdet1_6 (2)

At the falling of VCC

2.85

3.10

3.40

Voltage detection level Vdet1_7 (2)

At the falling of VCC

3.00

3.25

3.55

Voltage detection level Vdet1_8 (2)

At the falling of VCC

3.15

3.40

3.70

Voltage detection level Vdet1_9 (2)

At the falling of VCC

3.30

3.55

3.85

Voltage detection level Vdet1_A (2)

At the falling of VCC

3.45

3.70

4.00

Voltage detection level Vdet1_B (2)

At the falling of VCC

3.60

3.85

4.15

Voltage detection level Vdet1_C (2)

At the falling of VCC

3.75

4.00

4.30

Voltage detection level Vdet1_D (2)

At the falling of VCC

3.90

4.15

4.45

Voltage detection level Vdet1_E (2)

At the falling of VCC

4.05

4.30

4.60

Voltage detection level Vdet1_F (2)

At the falling of VCC

4.20

4.45

4.75

−

Hysteresis width at the rising of Vcc in voltage

detection 1 circuit

Vdet1_0 to Vdet1_5

selected

−

0.07

−

Vdet1_6 to Vdet1_F

selected

−

0.10

−

Voltage detection 1 circuit response time (3)

At the falling of Vcc from 5 V

to (Vdet1_0

− 0.1) V

−

150

µs

−

Voltage detection circuit self power consumption

VCA26 = 1, VCC = 5.0 V

−

1.7

−µA

td(E-A)

Waiting time until voltage detection circuit operation

starts (4)

−−

100

µs

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