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DS1244Y-70+
Real Time Clock 256k NV SRAM with Phantom Clock
Brands: Analog Devices Inc.
Mfr.Part #: DS1244Y-70+
Datasheet: DS1244Y-70+ Datasheet (PDF)
Package/Case: EDIP-28
Product Type: Real Time Clock
RoHS Status:
Stock Condition: 9458 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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Add To BomDS1244Y-70+ General Description
The DS1244 256k NV SRAM with a Phantom clock is a fully static nonvolatile RAM (NV SRAM) (organized as 32k words by 8 bits) with a built-in real-time clock. The DS1244 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 garbled data in both the memory and real-time clock.
Features
- Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
- 32k 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
- Full 10% Operating Range
- Over 10 Years of Data Retention in the Absence of Power
- Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
- DIP Module Only
- Standard 28-Pin JEDEC Pinout
- PowerCap Module Board Only
- Surface mountable package for direct connection to PowerCap containing battery and crystal
- Replaceable battery (PowerCap)
- Pin-for-pin compatible with DS1248P and DS1251P
- Available in Lead-Free Package
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer: | Analog Devices Inc. | Product Category: | Real Time Clock |
| Shipping Restrictions: | Available in USA only. | RoHS: | Details |
| Mounting Style: | Through Hole | Package / Case: | EDIP-28 |
| RTC Bus Interface: | Parallel | Date Format: | YY-MM-DD-dd |
| Time Format: | HH:MM:SS:hh | Battery Backup Switching: | Integrated Battery |
| RTC Memory Size: | 32 kB | Supply Voltage - Max: | 5.5 V |
| Supply Voltage - Min: | 4.5 V | Minimum Operating Temperature: | 0 C |
| Maximum Operating Temperature: | + 70 C | Packaging: | Tube |
| Brand: | Analog Devices / Maxim Integrated | Function: | Calendar, Clock, NV SRAM Control |
| Product Type: | Real Time Clocks | Series: | DS1244Y |
| Factory Pack Quantity: | 12 | Subcategory: | Clock & Timer ICs |
| Part # Aliases: | DS1244Y 90-1244Y+070 | Unit Weight: | 0.148151 oz |
| Package | Tube | Product Status | Active |
| Programmabe | Not Verified | Type | Phantom Time Chip |
| Features | Leap Year, NVSRAM | Memory Size | 32KB |
| Time Format | HH:MM:SS:hh (12/24 hr) | Date Format | YY-MM-DD-dd |
| Interface | Parallel | Voltage - Supply | 4.5V ~ 5.5V |
| Current - Timekeeping (Max) | 10mA @ 5V | Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Through Hole | Package / Case | 28-DIP Module (0.600", 15.24mm) |
| Supplier Device Package | 28-EDIP |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The DS1244Y-70+ chip is a non-volatile static RAM (NVSRAM) device designed by Maxim Integrated. It combines the features of both RAM and non-volatile memory, allowing data to be stored even when power is lost. The chip has a capacity of 1 Megabit and operates at a speed of 70ns. It is commonly used in applications requiring both data storage and high-speed access, such as industrial automation and automotive electronics.
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Equivalent
There are no direct equivalent products to the DS1244Y-70+ chip. However, possible alternative options may include similar memory chips such as the DS1244Y-120+ or the DS1244Y-85+. -
Features
The DS1244Y-70+ is a nonvolatile static RAM module that provides 32KB of memory with unlimited write cycles. It operates at a voltage range of 4.5V to 5.5V and has a maximum access time of 70ns. It also includes a built-in lithium energy source that powers the memory during power loss or failure. -
Pinout
The DS1244Y-70+ is an integrated circuit with a 28-pin count. It functions as a 2048k nonvolatile static RAM (nvSRAM) with a battery-backup feature, offering data retention during power loss. -
Manufacturer
The manufacturer of the DS1244Y-70+ is Maxim Integrated Products. It is a multinational semiconductor company that designs, manufactures, and sells integrated circuits. It specializes in analog and mixed-signal products for various industries, including automotive, industrial, healthcare, consumer, and communications sectors. Maxim Integrated is known for its high-performance analog and mixed-signal solutions that enable innovative electronic designs. -
Application Field
The DS1244Y-70+ is a real-time clock (RTC) with a non-volatile static RAM (NVSRAM). It can be used in applications that require time-keeping and data retention during power loss, such as smart meters, industrial automation systems, network routers, and medical devices. Additionally, the DS1244Y-70+ can be utilized in any application that requires accurate timekeeping with backup power. -
Package
The DS1244Y-70+ chip is available in a 28-pin EDIP (ceramic package type) with dimensions 26.92mm x 9.84mm x 3.81mm.
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