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DS1643-100+ — dip28 package (representative)
dip28
Representative of package type
Maxim

DS1643-100+

Nonvolatile SRAM with RTC · 28-DIP Module · Memory
Part Status: Obsolete
Manufacturer
Maxim
Mfr Part #
DS1643-100+
Series
DS1643
Category
Nonvolatile SRAM with RTC
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Access Time100ns
Memory Size64KB
Voltage5V
Physical & Thermal
Package / Case28-DIP Module
Mounting TypeThrough Hole
SeriesDS1643
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryNonvolatile SRAM with RTC
TypeMemory
Part StatusObsolete

64KB NVSRAM with integrated Phantom Clock, 100ns access time

Environmental & Export Classifications

RoHS Status
RoHS Compliant
REACH Status
Moisture Sensitivity (MSL)
ECCN
HTSUS

Part Activity

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Specifications reviewed & updated · ZDI

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Engineering FAQ

answers from this part's real data
DS1643-100+ is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What are the key specifications of DS1643-100+?
Access Time: 100ns; Memory Size: 64KB; Voltage: 5V.
What package is DS1643-100+ supplied in?
DS1643-100+ is supplied in the 28-DIP Module package, through hole, rated 0°C ~ 70°C.
Can ZDI source DS1643-100+ beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
Source-country supplier analysis, rating & review
Incoming inspection, RoHS verification, bake, full lot traceability
ESD-controlled handling · authentic parts guaranteed

DS1643-100+ is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

Related Parts

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