Renesas 4513 Informações Técnicas descarregar pdf (Página 95)

4513/4514 Group

SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

A-D CONVERTER RECOMMENDED OPERATING CONDITIONS

(Comparator mode included, Ta = –20 °C to 85 °C, unless otherwise noted)

Symbol

VDD

VIA

f(XIN)

Parameter

Supply voltage

Analog input voltage

Oscillation frequency

A-D CONVERTER CHARACTERISTICS

(Ta = –20 °C to 85 °C, unless otherwise noted)

Conditions

Unit

MHz

Middle-speed mode, VDD ≥ 2.7 V

High-speed mode, VDD ≥ 2.7 V

Min.

2.7

0.8

0.4

Typ. Max.

5.5

VDD

Limits

Symbol

–

V0T

VFST

IADD

TCONV

–

Parameter

Resolution

Linearity error

Differential non-linearity error

Zero transition voltage

Full-scale transition voltage

A–D operating current

A-D conversion time

Comparator resolution

Comparator error (Note)

Comparator comparison time

Test conditions

Unit

bits

LSB

bits

Ta = 25 °C, VDD = 2.7 V to 5.5 V

Ta = –25 °C to 85 ° C, VDD = 3.0 V to 5.5 V

Ta = 25 °C, VDD = 2.7 V to 5.5 V

Ta = –25 °C to 85 ° C, VDD = 3.0 V to 5.5 V

VDD = 5.12 V

VDD = 3.072 V

VDD = 5.12 V

VDD = 3.072 V

VDD = 5.0 V

VDD = 3.0 V

f(XIN) = 4.0 MHz, Middle-speed mode

f(XIN) = 4.0 MHz, High-speed mode

Comparator mode

VDD = 5.12 V

VDD = 3.072 V

f(XIN) = 4.0 MHz, Middle-speed mode

f(XIN) = 4.0 MHz, High-speed mode

Min.

5105

3060

Typ.

5115

3069

0.7

0.2

Max.

±2

±0.9

5125

3075

2.0

0.4

93.0

46.5

±20

±15

Limits

f(XIN) = 0.4 MHz to 4.0 MHz

f(XIN) = 0.4 MHz to 2.0 MHz

Note: As for the error from the ideal value in the comparator mode, when the contents of the comparator register is n, the logic value of the comparison volt-

age V

ref which is generated by the built-in DA converter can be obtained by the following formula.

Logic value of comparison voltage Vref

Vref = ✕ n

n = Value of register AD (n = 0 to 255)

VDD

256

VOLTAGE DROP DETECTION CIRCUIT CHARACTERISTICS

(Ta = –20 °C to 85 °C, unless otherwise noted)

Test conditions

Ta = 25 °C

VDD = 5.0 V

Parameter

Detection voltage

Operation current of voltage

drop detection circuit

Symbol

VRST

IRST

Limits

Unit

Min.

2.7

3.3

Typ.

3.5

Max.

4.1

3.7

100

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