What is the Surface Mount ?

having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

What is the Operating Temperature ?

The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

What is the Packaging ?

Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

What is the Part Status ?

Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

What is the Terminal Form ?

Occurring at or forming the end of a series, succession, or the like; closing; concluding.

What is the Terminal Pitch ?

The center distance from one pole to the next.

What is the Max Supply Voltage ?

In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.

What is the Min Supply Voltage ?

The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.

What is the Nominal Supply Current ?

Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.

What is the Quiescent Current ?

The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

What is the Synchronous Rectifier ?

Synchronous rectification is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).

What is the RoHS Status ?

RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

DS1321S

Name: DS1321S
Brand: Analog Devices Inc./Maxim Integrated
Price: 9.65 USD
Availability: InStock
Rating: 5 (80 reviews)

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Manufacturer Analog Devices Inc./Maxim Integrated

Product Number DS1321S

Description IC CTRLR NV W/BATT MON 5V 16SOIC

Datasheet DS1321S Datasheet(pdf)

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$9.65

Price update：a months ago

Available in stock： 255

Serves customers in 45 countries

1000+

Worldwide Manufacturers

$140M

$140M Growth in 5 Years

50.0M+

50M Parts Shipped in 5 Years

Analog Devices Inc./Maxim Integrated

Maxim Integrated has amalgamated with Analog Devices, imparting an augmented repertoire of superlative mixed-signal and power governance innovations, fostering clientele triumph across diverse sectors. This amalgamation begets a spectrum of resolutions for surmounting the utmost intricate quandaries, spanning from direct current to the expanse of 100 gigahertz, encompassing miniscule nanowatt realms to robust kilowatt domains, spanning the sensor continuum to the ethereal expanse of cloud. Delve deeper into Analog Devices' enriched assemblage on their product dossier.

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The DS1321S Flexible Nonvolatile Controller with Lithium Battery Monitor is a CMOS circuit which solves the application problem of converting CMOS SRAMs into nonvolatile memory. Incoming power is monitored for an out-of-tolerance condition. When such a condition is detected, chip enable outputs are inhibited to accomplish write protection and the battery is switched on to supply the SRAMs with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. One DS1321S can support as many as four SRAMs arranged in any of three memory configurations. In addition to battery-backup support, the DS1321S performs the important function of monitoring the remaining capacity of the lithium battery and providing a warning before the battery reaches end-of-life. Because the open-circuit voltage of a lithium backup battery remains relatively constant over the majority of its life, accurate battery monitoring requires loaded-battery voltage measurement. The DS1321S performs such measurement by periodically comparing the voltage of the battery as it supports an internal resistive load with a carefully selected reference voltage. If the battery voltage falls below the reference voltage under such conditions, the battery will soon reach end-of-life. As a result, the Battery Warning pin is activated to signal the need for battery replacement.

Feature

Converts CMOS SRAM into nonvolatile memory
Unconditionally write-protects SRAM when V_CC is out of tolerance
Automatically switches to battery backup supply when V_CC power failure occurs
Flexible memory organization
- Mode 0: 4 banks with 1 SRAM each
- Mode 1: 2 banks with 2 SRAMs each
- Mode 2: 1 bank with 4 SRAMs each
Monitors voltage of a lithium cell and provides advanced warning of impending battery failure
Signals low-battery condition on active low Battery Warning output signal
Resets processor when power failure occurs and holds processor in reset during system power-up
Optional 5% or 10% power-fail detection
16-pin PDIP, 16-pin SO and 20-pin TSSOP packages
Industrial temperature range of -40°C to +85°C

Shipping Cost

1. Shipping starts at $40, but prices may vary for certain countries like South Africa, Brazil, India, Pakistan, Israel, etc.
2. The basic freight for packages ≤0.5kg or equivalent volume is influenced by the time zone and country.

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1. Our products are currently shipped using DHL, SF, and UPS. For low quantities, FedEx is the chosen carrier.

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1. Once shipped, the estimated delivery time is contingent on the selected shipping method.

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1. Every electronic component you purchase from us comes with a 365-Day Warranty. We stand behind the quality of our products.

2. Should you receive any item that isn't in perfect condition, we are committed to arranging a refund or replacement responsibly. Please note that items must be in their original condition for these options to be available.

FAQs:

Q: How does SZComponents ensure that DS1321S is genuinely manufactured or distributed by ?
A: Our professional business development department conducts rigorous testing and verification of the qualifications of original manufacturers and agents of . All suppliers must undergo and pass our qualification review before they are allowed to list their DS1321S devices on our platform. We prioritize the sourcing channels and quality of DS1321S products above everything else, ensuring thorough supplier audits so you can make your purchase with utmost confidence.
Q: Where can I find detailed information about DS1321S chips, including original manufacturer details, Controllers application, and images?
A: Utilize SZComponents's intelligent search engine, filter by the Controllers category, or navigate through the 's brand page for comprehensive information.
Q: Are the prices and stock levels of 's DS1321S shown on the platform accurate?
A: Due to significant fluctuations in 's inventory, real-time updates are challenging. However, we ensure periodic updates within 24 hours. We recommend confirming your DS1321S order with a SZComponents sales representative or through our online customer service before proceeding with payment.
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A: We accept various payment methods, including TT Bank, PayPal, Credit Card, Western Union, and Escrow.
Q: How are shipping arrangements made, and how can I track my package?
A: Customers can select from industry-leading freight companies like DHL, FedEx, UPS, TNT, and Registered Mail. Once your order is ready for shipment, our sales team will inform you about the shipping details and provide a tracking number. Note that tracking information might take up to 24 hours to appear. Typically, Express delivery takes 3-5 days, while Registered Mail requires 25-60 days.
Q: What is the process for returns or replacements of DS1321S?
A: We conduct a Pre-Shipment Inspection (PSI) on randomly selected batches from your order to ensure quality before shipment. We will accept returns or replacements of the DS1321S if it does not meet your expectations under the following conditions:
Issues such as incorrect quantities, delivery of wrong items, or obvious external defects are acknowledged by us.
We are informed about the defects within 90 days from the delivery date.
The DS1321S remains unused and in its original packaging.
To initiate a return, please:
Inform us within the 90-day period.
Obtain a Request for Return Authorization.
For more details, refer to our Return & Change Policy.
Q: How can I get support or request datasheets and pin diagrams for DS1321S?
A: For any After-Sales service, including datasheets and pin diagrams for DS1321S, feel free to contact us at [email protected]
Q: How can I contact SZComponents? Please provide specific contact methods.
A: Reach out to us by clicking the customer service button at the bottom right corner of our site, submitting an RFQ directly, or using the 'Contact Us' link at the top of our page to email or call us. We guarantee a response to your inquiries within 24 hours.

Product Attributes

TYPE	DESCRIPTION	Select all
Package	Tube
Product Status	Obsolete
Controller Type	Nonvolatile RAM
Voltage - Supply	4.75V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package	16-SOIC