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VW2220

型号:

VW2220

品牌:

ETC[ ETC ]

页数:

1 页

PDF大小:

63 K

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  
VDD  
IC  
1.2  
-
1.5  
-
1.8  
200  
Volt  
uA  
VDD=1.5V  
RL=250ohm  
VDD=1.5V  
No Load  
Crystal Frequency  
-20 to -50 ppm  
Standby Current  
IDD  
-
-
-
3
-
uA  
Hz  
Oscillator Frequency  
Pulse Width Code F  
Code G TW  
Code H TW  
Output Voltage High VOH  
Output Voltage Low VOL  
Operation Temperature TOP  
Fosc  
TW  
32768  
-
-
-
1.0  
-
31.25  
23.40  
15.60  
-
-
-
-
-
-
-
0.4  
60  
ms  
ms  
ms  
Volt VDD=1.5V  
Volt VDD=1.5V  
°C  
0
Application Diagram  
M
Name  
VDD  
OSCI  
OSCO  
TEST  
VSS  
MOT1  
MOT2  
Unit  
X
Y
MOT1  
VDD  
MOT2  
VSS  
OSC1 OSC0  
72.5  
314.5  
656  
75.5  
77.5  
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 IC 必须接 VDD)  
602.5  
Micron  
VW2200 Crystal Clock Preliminary Product Specification  
Dated 19 May 2004  
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