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Nuvoton Technology Corporation KM63Y1221-E1

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Answer first: this page is a purchasing reference for the exact part number KM63Y1221-E1 from Nuvoton Technology Corporation. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: Nuvoton Technology Corporation Category: RFID, RF Access, Monitoring ICs Part number: KM63Y1221-E1 Package: 8-XFDFN Exposed Pad RFQ verification required

Key Parameters

Part NumberKM63Y1221-E1
ManufacturerNuvoton Technology Corporation
CategoryRFID, RF Access, Monitoring ICs
package8-XFDFN Exposed Pad
seriesNuMicro®
packagingTape & Reel (TR)
product statusActive
param 1RFID Reader/Transponder
param 213.56MHz
param 3FeliCa, ISO 14443
param 4I2C
param 51.7V ~ 3.6V
param 6-
param 7-
param 8-
param 9Surface Mount
param 108-SON (2x2)

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify KM63Y1221-E1 Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For KM63Y1221-E1, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.