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DS1243, DS1243Y
ファントムクロック付き、64K NV SRAM
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ステータス
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ステータス |
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DS1243
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入手可能：生産中 |
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DS1243Y
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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 DS1243Y 64K NV SRAM with Phantom Clock is a fully static nonvolatile RAM (organized as 8192 words by 8 bits) with a built-in real time clock. The DS1243Y has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent corrupted data in both the memory and real time clock. The Phantom Clock provides timekeeping information including hundredths of seconds, seconds, minutes, hours, day, date, month, and year information. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The Phantom Clock operates in either 24-hour or 12-hour format with an AM/PM indicator.
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データシート
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この製品にはリチウム金属電池が含まれています。 機器に組み込まれたバッテリの輸送規定については適用される規制を参照してください。
主な特長
- Real-Time Clock Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
- 8k x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM
- Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data
- Watch Function is Transparent to RAM Operation
- Automatic Leap Year Compensation Valid Up to 2100
- Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
- Standard 28-Pin JEDEC Pinout
- Full ±10% Operating Range
- Accuracy is Better than ±1 Minute/Month at +25°C
- Over 10 Years of Data Retention in the Absence of Power
- Available in 120ns and 150ns Access Time
- UL (Underwriters Laboratories)認定
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主な仕様：
| Timekeeping & Real-Time Clocks |
| Part Number |
Date/ Time Format |
Interface |
VSUPPLY
(V) |
Memory Type |
Memory Size
(Bytes) |
Time of Day Alarms |
Budgetary Price |
| hh = sec/100 |
See Notes |
| DS1243 |
YY-MM-DD/ HH:MM:SS:hh |
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5 |
NV SRAM |
8K |
0 |
$11.75 @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
ピン配置
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情報インデックス
参考文献： 19-6076
Rev 3;
2012-01-03
このページの最終更新日： 2012-01-03
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