R8C datasheet(33/60 Pages) RENESAS

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R8C/38A Group

5. Electrical Characteristics

REJ03B0274-0120 Rev.1.20

Page 33 of 57

Jul 31, 2010

Notes:

1. VCC/AVCC = Vref = 2.7 to 5.5 V and Topr =

−20 to 85°C (N version), unless otherwise specified.

2. This applies when one D/A converter is used and the value of the DAi register (i = 0 or 1) for the unused D/A converter is 00h.

The resistor ladder of the A/D converter is not included.

Notes:

1. VCC = 2.7 to 5.5 V and Topr =

−20 to 85°C (N version), unless otherwise specified.

2. When the digital filter is disabled.

Notes:

1. VCC = 2.7 to 5.5 V and Topr =

−20 to 85°C (N version), unless otherwise specified.

2. When the digital filter is disabled.

Table 5.4

D/A Converter Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

—

Resolution

——

Bit

—

Absolute accuracy

—

2.5

LSB

tsu

Setup time

——

µs

Output resistor

—6—

Ω

IVref

Reference power input current

(Note 2)

—

1.5

Table 5.5

Comparator A Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

LVREF

External reference voltage input range

1.4

—

VCC

LVCMP1,

LVCMP2

External comparison voltage input range

−0.3

—

VCC + 0.3

—

Offset

—

200

—

Comparator output delay time (2)

At falling, VI = Vref

− 100 mV

—

µs

At falling, VI = Vref

− 1 V or below

—

1.5

—

µs

At rising, VI = Vref + 100 mV

—

µs

At rising, VI = Vref + 1 V or above

—

0.5

—

µs

—

Comparator operating current

VCC = 5.0 V

—

0.5

—

µA

Table 5.6

Comparator B Electrical Characteristics

Symbol

Parameter

Condition

Standard

Unit

Min.

Typ.

Max.

Vref

IVREF1, IVREF3 input reference voltage

—

VCC

− 1.4

IVCMP1, IVCMP3 input voltage

−0.3

—

VCC + 0.3

—

Offset

—

100

Comparator output delay time (2)

VI = Vref ± 100 mV

—

0.1

—

µs

ICMP

Comparator operating current

VCC = 5.0 V

—

17.5

—

µA

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