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DS21FF44 — BGA / FBGA package (representative)
BGA / FBGA
Representative of package type
Maxim Integrated

DS21FF44

E1 Framer · 300-PBGA (27mm x 27mm) · Interface
In stock at ZDI Part Status: Obsolete
Data last refreshed Sep 8, 2026
Manufacturer
Maxim Integrated
Mfr Part #
DS21FF44
Category
E1 Framer
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Stock10 pcs
Date Code0105
PackagingTrayed
Unit PriceRequest a Quote
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
FunctionE1 Framer
Number Of Channels16
Configuration4 x 4 Quad Framer Die
ProtocolE1
Supply Voltage - Min2.97V
Supply Voltage - Max3.63V
Supply Voltage - Nom3.3V
Supply Current300mA
Logic Compatibility3.3V CMOS with 5V-tolerant I/O
Backplane Bus Frequency8.192MHz
Boundary ScanIEEE 1149.1 JTAG
Package / Case300-PBGA
Supplier Device Package300-PBGA (27x27)
Pin Count300
Ball Pitch1.27mm
Operating Temperature Range-40°C to +85°C
Storage Temperature Range-55°C to +125°C
Mounting TypeSurface Mount
Physical & Thermal
Package / Case300-PBGA (27mm x 27mm)
Mounting TypeSurface Mount
Operating Temperature-40°C ~ +85°C
Classification & Lifecycle
CategoryE1 Framer
TypeInterface
Part StatusObsolete

4x4 16-Channel E1 Framer Multichip Module (MCM)

Environmental & Export Classifications

RoHS Status
Non-Compliant

Availability & Sourcing

1 source
SourceMfrQtyDate CodeConditionStatus
ZDI Stock Maxim Integrated 10 0105 NEW In Stock RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Part Activity

recent searches, RFQs & offers
DS21FF44 viewed on the web · Web User
Part record updated by grok_grounded enrichment — manufacturer, description, category, lifecycle · ZDI
Specifications reviewed & updated · ZDI
DS21FF44 viewed on the web · Web User
DS21FF44 viewed on the web · Web User
DS21FF44 viewed on the web · Web User
DS21FF44 viewed on the web · Web User
DS21FF44 viewed on the web · Web User

Recent search and sourcing activity for DS21FF44.

Engineering FAQ

DS21FF44 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 quantity and packaging is DS21FF44 in ZDI stock?
ZDI holds 10 pcs, packaged as Trayed, date code(s) 0105. Request a quote for confirmed quantity, lead time, and pricing.
What are the key specifications of DS21FF44?
Function: E1 Framer; Number Of Channels: 16; Configuration: 4 x 4 Quad Framer Die; Protocol: E1; Supply Voltage - Min: 2.97V; Supply Voltage - Max: 3.63V.
What package is DS21FF44 supplied in?
DS21FF44 is supplied in the 300-PBGA (27mm x 27mm) package, surface mount, rated -40°C ~ +85°C.
Can ZDI source DS21FF44 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

DS21FF44 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.

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