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參數(shù)資料
| 型號： | HT1330 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 3 1/2 Digit Timer + Watch |
| 中文描述： | 3 1 / 2位定時器觀察 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 98K |
| 代理商： | HT1330 |
Absolute Maximum Rating
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.
Electric Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
V
DD
Conditions
V
DD
Supply Voltage
1.5V
1.25
1.50
1.70
V
I
DD
Operating Current
1.5V
fosc=32768Hz
No load
2
A
V
EE
Display Voltage
1.25~1.7V
1.2
1.5
1.7
V
I
IN
Switch Input Current
1.5V
V
IN
=VDD
5
65
A
V
STR
Osc Starting Voltage
Within 3 secs
1.35
V
f/f
Frequency Stability
1.25~1.7V
10
PPM
I
OHA
Alarm Output Drive Current
1.5V
V
OH
=1.35V
480
A
f
OUT
Alarm Output Frequency
1.5V
4096
Hz
I
OHF
Busy Flag Output Drive
Current
1.5V
V
OH
=1.35V
480
A
HT1330
4
August 10, 2000
Functional Description
Whenpoweristurnedon,alltheLCDsegments
are illuminated to display
alarm sounds 2 seconds.
18:88
and the
For fast-test, hold the TP1 pin high and the
minute digit will be increased every second.
In the count-down mode, when the time has gone
pastthesettimeandthealarmisstopped,theset
time will remain at its current state or be reset to
0:00 depending on the bonding of the OPT pin
to VDD.
In the timer mode, while the timer is counting,
theactualtimecanbedisplayedbypressing S1 .
Once S1 is released, the count-down time will
be shown instead.
In the count-up mode, the LCD display is nor-
mally in minutes and seconds where the maxi-
mum count-up period is 20 minutes. If S2 is
pressed, the LCD display will revert to hours
and minutes and the maximum count-up time
will turn out to be 20 hours.
The timer alarm will sound during the
count-down process as listed below:
4 sounds are generated at 10 minutes before
the set time is up.
8 sounds are generated at 5 minutes before the
set time is up.
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| HT-13-38 | 功能描述:端子 HT-13-38 RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點(diǎn)電鍍:Tin over Nickel 觸點(diǎn)材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp |
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