Analog Devices Inc. ADSP-1401KP

The ADSP-1401 generates the next 16-bit microprogram address in a microcoded processor. Its sequencing resources support sequential execution, branching, loops, subroutines and interrupt-driven control. It is a support component and not a stand-alone DSP.

Analog Devices lists ADSP-1401KP as a 52-lead PLCC, outline P-52. The local product record instead says 48-DIP; these are physically different packages and cannot be treated as synonyms. The package register has a 52-LCC J-lead entry with expected artwork 52-LCC.jpg, but the local JPG is missing. The catalog package must be corrected and the exact footprint checked by a person.

Layout checks

• Compare the original P-52 outline and numbered pin diagram with the board.
• Verify pin-one index and J-lead land pattern.
• Resolve the catalog 48-DIP conflict before any substitute or order decision.

This page must remain unpublished until the discrepancy and image are resolved.

The ADSP-1401 data-book diagram identifies program-address, data, instruction/control, timing, interrupt and supply groups. Consult the original 52-lead P-52 drawing for physical pin numbers; a 48-pin DIP pinout does not apply to this order code.

Check active levels and all exact pin assignments in the original data sheet.

Speed and switching limits depend on the manufacturer's grade-specific tables and test conditions.

The ADSP-1401JN and KN are documented 48-pin plastic DIP options, while the KP code is a 52-lead PLCC. They are not drop-in package equivalents. Confirm package, pinout, temperature, supply, timing, instruction behavior and lot marking before replacement. No unverified internal alternative link is included.

The original Analog Devices DSP Products Data Book describes the ADSP-1401 as a 16-bit microprogram sequencer and explicitly lists ADSP-1401KP as a 0 to +70 degrees C 52-lead PLCC in outline P-52. This exact-order table takes precedence over the inconsistent local catalog package field.

Inspect the complete manufacturer marking, KP suffix, date and lot code, J-lead condition and traceability. Because the catalog package conflicts with the manufacturer, verify the physical lot before quoting. This listing does not claim current production or lot certification.

Keep this listing under manual review until the 48-DIP versus 52-lead PLCC conflict, physical stock identity, package JPG, footprint and current qualified distributor pricing are resolved. Do not publish while any check remains open.