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256k Nonvolatile, Y2K-Compliant Timekeeping RAM
|Manufacturer :||Maxim Integrated|
|Package/Case :||32-DIP Module (0.600, 15.24mm)|
|Product Categories :||Real Time Clock|
|Datasheet:||DS1554W-120IND+ Datasheet (PDF)|
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DS1554W-120IND+ Product Details
The DS1554W-120IND+ has interrupt (active-low IRQ/FT) and reset (active-low RST) outputs which can be used to control CPU activity. The active-low IRQ/FT interrupt output can be used to generate an external interrupt when the RTC Register values match user programmed alarm values. The interrupt is always available while the device is powered from the system supply and can be programmed to occur when in the battery-backed state to serve as a system wakeup. Either the active-low IRQ/FT or active-low RST outputs can also be used as a CPU watchdog timer, CPU activity is monitored and an interrupt or reset output will be activated if the correct activity is not detected within programmed limits. The DS1554W-120IND+ power-on reset can be used to detect a system power down or failure and hold the CPU in a safe reset state until normal power returns and stabilizes; the active-low RST output is used for this function. The DS1554W-120IND+ also contains its own power-fail circuitry, which automatically deselects the device when the VCC supply enters an out of tolerance condition. This feature provides a high degree of data security during unpredictable system operation brought on by low VCC levels.
- Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, Lithium Energy Source
- Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations
- Century Byte Register (i.e., Y2K Compliant)
- Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
- Precision Power-On Reset
- Programmable Watchdog Timer and RTC Alarm
- BCD-Coded Year, Month, Date, Day, Hours, minutes, and Seconds with Automatic
- Leap- Year Compensation Valid Up to the Year 2100
- Battery Voltage-Level Indicator Flag
- Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance
- Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
- Also Available in Industrial Temperature Range: -40°C to +85°C
- Clock, Calendar, NV Timekeeping RAM, Watchdog Timekeeper
- RTC Bus Interface
- Time Format
- RTC Memory Size
- 32768 B
- Supply Voltage Max
- 3.63 V
- Supply Voltage Min
- 2.97 V
- Maximum Operating Temperature
- + 85 C
- Minimum Operating Temperature
- - 40 C
- Mounting Style
- Through Hole
- Package / Case
- Part # Aliases
DS1554 data sheet for guidance
DS1554W-120IND+ Related Products
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Estimated Delivery Time: Mar 26 - Mar 31 days (choose Expedited at checkout).
Shipping & Payment
- Shipping Type
- Ship Fee
- Lead Time
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- $25.00-$65.00 (0.50 KG)
- 2-5 days
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time：Shipping fee depend on different zone and country.
- Terms of payment
- Hand Fee
- Wire Transfer
- charge US$30.00 banking fee.
- charge 4.0% service fee.
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- charge 3.5% service fee.
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- charge US$0.00 banking fee.
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90 days quality guarantee for all products.
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Step3: Anti-Static Bag
Step4: Individual Packaging
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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.
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.
- Q: How does Jotrin guarantee that DS1554W-120IND+ is the original manufacturer or agent of MAXIM?
- We have a professional business development department to strictly test and verify the qualifications of MAXIM original manufacturers and agents. All MAXIM suppliers must pass the qualification review before they can publish their DS1554W-120IND+ devices; we pay more attention to the channels and quality of DS1554W-120IND+ products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of DS1554W-120IND+ chips? Including MAXIM original factory information, Real Time Clock application, DS1554W-120IND+ pictures?
- You can use Jotrin's intelligent search engine, or filter by Timekeeping & Real-Time Clocks category, or find it through Maxim Integrated Information page.
- Q: Are the MAXIM's DS1554W-120IND+ price and stock displayed on the platform accurate?
- The MAXIM's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for DS1554W-120IND+, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
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Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
- Q: What is the process for returns or replacement of DS1554W-120IND+?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the DS1554W120IND+ we delivered, we will accept the replacement or return of the DS1554W-120IND+ only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of DS1554W-120IND+.
(3)The DS1554W-120IND+ is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
- Q: How to contact us and get support, such as DS1554W-120IND+ datasheet pdf, DS1554 pin diagram?
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