(Hong Kong)
Product Summary
The HT1381 is a serial timekeeper IC which provides seconds, minutes, hours, day,date, month and year information. The number; of days in each month and leap years are auto-matically adjusted. The HT1381 is de-signed for low power consumption and can operate in two modes: one is the 12-hour mode with an AM/PM indicator, the other is the 24-hour mode. The HT1381 has several registers to store the corresponding information with 8-bit data format. A 32768Hz crystal is required to provide the correct timing. In order to minimize the pin number, the HT1381 use a se-rial I/O transmission method to interface with a microprocessor.
Parametrics
HT1381 absolute maximum ratings: (1)supply voltage: -0.3 to 5.5V; (2)input voltage: VSS-0.3 to VDD+0.3V; (3)storage temperature: -50 to 125℃; (4)operating temperature: 0 to 70℃.
Features
HT1381 features: (1)Operating voltage: 2.0V to 5.5V; (2)Maximum input serial clock: 500kHz at Vdd=2V, 2MHz at VDD=5V; (3)Operating current: less than 400nA at 2V; (4)TTL compatible:VIH=2.0V to VDD+0.3V at VDD=5V;VIL: -0.3V to +0.8V at V; (5)DD=5V; (6)Two data transmission modes: single-byte,or burst mode; (7)Serial I/O transmission; (8)All registers store BCD format:8-pin SOP package.
Diagrams
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 HT1381 |
Other |
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Data Sheet |
Negotiable |
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HT1330 |
Other |
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Data Sheet |
Negotiable |
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HT1350 |
Other |
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Data Sheet |
Negotiable |
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HT1380 |
Other |
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Data Sheet |
Negotiable |
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HT1381 |
Other |
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Data Sheet |
Negotiable |
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HT13G |
Taiwan Semiconductor |
Rectifiers 1.0 Amp 200 Volt 30 Amp IFSM |
Data Sheet |
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HT13R90 |
Other |
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Data Sheet |
Negotiable |
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