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參數(shù)資料
| 型號(hào)： | HT1350 |
| 廠商： | Holtek Semiconductor Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | Step Counter |
| 中文描述： | 計(jì)步器 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 83K |
| 代理商： | HT1350 |
Absolute Maximum Ratings
Supply Voltage................................. 0.3V to 5V
Storage Temperature................. 50 C to 125 C
Input Voltage.................V
SS
0.3V to V
DD
+0.3V
Operating Temperature ..................0 C to 70 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maxi-
mum Ratings
may cause substantial damage to the device. Functional operation of this de-
vice at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
1.3
1.5
1.7
V
I
DD
Operating Current
1.5V
No load,
f
OSC
=32kHz
1.5
3
A
I
STB
Standby Current
1.5V
0.5
1
A
V
IL
Input Low Voltage
1.5V
0.2V
DD
V
V
IH
Input High Voltage
1.5V
0.8V
DD
V
f
OSC
System Frequency
1.5V
32
kHz
HT1350
4
June 28, 1999
Functional Description
TheHT1350isastepcounterIC.Itisusedtoau-
tomatically count the step number taken by a
runner and to display the whole course (kilome-
ter/mile) combined with the calories consumed
on the LCD.
The IC is turned on and off with respect to the
on/off status of a short of spring switch which
corresponds to the up/down motion of the steps.
The output of step number can be changed to
kilometers/miles or calories by counting the to-
tal number of times the step switch is closed.
The IC can automatically distinguish between
walking and jogging and make the according
calculations. The output of the LCD is busy
when the RESET key is pressed. Once the LCD
is in the busy state, the step counter will start
counting at 0 after 0.5 seconds till the runner
stops running and stands still. After the step
counter stops counting, pressing the MODE
key will display the step number
meter
calorie in sequence.
mile
kilo-
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