MSM64162 datasheet(22/39 Pages) OKI

Part #	MSM64162

Description	4-Bit Microcontroller with Built-in RC Oscillation Type A/D Converter and LCD Driver

PDF	39 Pages

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Manufacturer	OKI [OKI electronic componets]

Direct Link	http://www.oki.com

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22 / 39 page

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¡ Semiconductor

MSM64162

A/D Converter Characteristics

Kfx is the ratio of the oscillation frequency by a sensor resistor to the oscillation frequency

by a reference resistor in the same condition.

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Measur-

ing

Circuit

Resistor

for Oscillation

CS0, CT0, CS1

≥ 740 pF

2.0

Input Current

Limiting Resistor

Oscillation

Frequency

RS•RT Oscillation

Frequency Ratio (*)

RI0, RI1

fOSC1

fOSC2

fOSC3

Kf1

Kf2

Kf3

Resistor for oscillation = 2 k

Resistor for oscillation = 10 k

Resistor for oscillation = 200 k

RT0, RT0-1, RT1 = 2 k

RT0, RT0-1, RT1 = 10 k

RT0, RT0-1, RT1 = 200 k

1.0

165

41.8

2.55

3.89

0.990

0.0561

221

52.2

3.04

4.18

1.0

0.0584

256

60.6

3.53

4.35

1.010

0.0637

kHz

RS0, RS1,

RT0,

RT0-1,

RT1

—

kHz

—

——

(VDD = 0 V, VSS1 = –1.5 V, Ta = –40 to +85°C unless otherwise specified)

Kfx =

fOSCX (RS0–CS0 Oscillation)

fOSCX (RT0–CS0 Oscillation)

(x = 1, 2, 3)

fOSCX (RT0-1–CS0 Oscillation)

fOSCX (RS0–CS0 Oscillation)

fOSCX (RT1–CS1 Oscillation)

fOSCX (RS1–CS1 Oscillation)

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