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DS1340, DS1340C
トリクルチャージャ内蔵I²C RTC
ソフトウェアクロック較正を提供する、トリクルチャージャ内蔵I²Cリアルタイムクロック
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ステータス
| 型番 |
ステータス |
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DS1340
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入手可能：製造中。詳細についてはオーダー情報をご覧ください。 |
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DS1340C
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入手可能：製造中。詳細についてはオーダー情報をご覧ください。 |
製品概要
The DS1340 is a real-time clock (RTC)/calendar that is pin compatible and functionally equivalent to the ST M41T00, including the software clock calibration. The device additionally provides trickle-charge capability on the VBACKUP pin, a lower timekeeping voltage, and an oscillator STOP flag. Block access of the register map is identical to the ST device. Two additional registers, which are accessed individually, are required for the trickle charger and flag. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. A built-in power-sense circuit detects power failures and automatically switches to the backup supply. The device is programmed serially through an I²C bidirectional bus.
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データシート
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主な特長
- Enhanced Second Source for the ST M41T00
- Available in a Surface-Mount Package with an Integrated Crystal (DS1340C)
- Fast (400kHz) I²C Interface
- Software Clock Calibration
- RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year
- Automatic Power-Fail Detect and Switch Circuitry
- Trickle-Charge Capability
- Low Timekeeping Voltage Down to 1.3V
- Three Operating Voltage Ranges (1.8V, 3V, and 3.3V)
- Oscillator Stop Flag
- Available in 8-Pin µSOP or SO Packages
- UL (Underwriters Laboratories)認定
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アプリケーション/用途
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主な仕様：
| Timekeeping & Real-Time Clocks |
| Part Number |
Date/ Time Format |
Interface |
VSUPPLY
(V) |
Time Keeping Current
(nA) |
CL
(pF) |
Memory Type |
Time of Day Alarms |
Budgetary Price |
| hh = sec/100 |
typ |
See Notes |
| DS1340 |
YY-MM-DD/ HH:MM:SS |
I2C |
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800 |
12.5 |
None |
0 |
$1.12 @1k |
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全Timekeeping & Real-Time Clocks (87)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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図
標準動作回路
その他の情報
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情報インデックス
参考文献： 19-5578
Rev 7;
2011-09-09
このページの最終更新日： 2011-09-09
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