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Discontinued

DS1643-100

8Kb (8K x 8) nonvolatile timekeeping RAM with integrated real time clock, 100ns, DIP-28

The read
The DS1643-100 is an 8Kb nonvolatile timekeeping RAM with an integrated real time clock. It still appears in legacy telecom systems, industrial controllers, and single board computers that boot against its clock registers. Authorized stock is zero.
ManufacturerAnalog Devices (Maxim/Dallas)
Lifecycle statusDiscontinued
CategoryMemory
How Sourcible handles this part
Remaining lots trade on the open market. Anything we source outside authorized distribution goes through an independent AS6081-accredited laboratory before it ships. You get tested parts and the report to prove it.

DS1643-100 frequently asked questions

Is DS1643-100 still available?

DS1643-100 is no longer in production. Analog Devices (Maxim/Dallas) discontinued it. Remaining lots may still exist outside authorized distribution, and Sourcible LLC locates and verifies that material on request.

Is DS1643-100 discontinued or end of life?

Yes. DS1643-100 is discontinued at Analog Devices (Maxim/Dallas).

What are the alternatives to DS1643-100?

Alternatives to DS1643-100 depend on the application. Sourcible LLC identifies verified substitutes on request rather than publishing a generic cross reference.

Where can I buy DS1643-100 now that it is obsolete?

DS1643-100 no longer ships from Analog Devices (Maxim/Dallas) production. Sourcible LLC sources remaining inventory of DS1643-100 for OEM and EMS buyers. Components sourced outside authorized distribution are inspected by an independent AS6081-accredited lab before shipment. Submit a requirement on this page to start.

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