Datasheet > VW2220

VW2220

更新时间： 2022-01-18 16:53:00

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VW2220 数据手册

VW2200 Crystal Clock

Feature

• Single 1.5V battery operation

• Low power consumption

• High precision 32768Hz quartz crystal controlled oscillation

• 1 Hz stepper motor driven with a pulse

Description

• The VW2200 is a CMOS simple analog clock IC for a quartz clock circuit

32768Hz oscillation that drives a stepper motor precisely once a second.

Electrical Characteristics

Parameter

Symbol Min Typical Max Unit Remark

Operation Voltage

Operation Current

V_DD

I_C

1.2

1.5

1.8

200

Volt

V_DD=1.5V

R_L=250ohm

V_DD=1.5V

No Load

Crystal Frequency

-20 to -50 ppm

Standby Current

I_DD

Oscillator Frequency

Pulse Width Code F

Code G T_W

Code H T_W

Output Voltage High V_OH

Output Voltage Low V_OL

Operation Temperature T_OP

Fosc

T_W

32768

1.0

31.25

23.40

15.60

0.4

Volt V_DD=1.5V

°C

Application Diagram

Name

VDD

OSCI

OSCO

TEST

VSS

MOT1

MOT2

Unit

MOT1

VDD

MOT2

VSS

OSC1 OSC0

72.5

314.5

656

75.5

77.5

905

77.5

TEST

897.5

854.5

72.5

202.5

559

*IC substrate should be

connected to VDD in PCB

(PCB 上 IC 必须接 VDD)

602.5

Micron

VW2200 Crystal Clock Preliminary Product Specification

Dated 19 May 2004

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