Request a quote
Operated by ONE BOM LIMITED (Hong Kong) · teams in Shenzhen, Hong Kong and the USReply within 2 business hours (UTC+8)Every lot inspected before shippingEscrow / PayPal / T/T / L/C

Alternatives for SN74LS221DRE4

TI-ADI lists 1 cross references for SN74LS221DRE4 by Texas Instruments; 1 of them have verified stock.

AlternativeCompatibilityStockLead
SN74LS221DRE4Drop-in (same footprint)9674–9674—

Confirm pin-compatibility and key parameters with the datasheet before substituting in production.

Who has SN74LS221DRE4 right now?

TI-ADI can supply 9674–9674 pcs through verified channels. SN74LS221DRE4 →

Quality process, mapped to industry standards

  1. Source verification — supplier credentials, lot origin declaration, authorized-chain records (AS6081)
  2. Incoming visual inspection — markings, coplanarity, oxidation, refurbishment signs (IDEA-STD-1010-B)
  3. X-ray — die, bond wires and voids compared with a golden sample (AS6171/4)
  4. Decap / solvent test — sample decapsulation for die marking; acetone marking test (IDEA-STD-1010-B)
  5. Functional / electrical test — key parameters on bench or at a third-party lab (AS6171/6)
  6. Moisture & packaging — MSL level, vacuum bag, desiccant, humidity indicator (JEDEC J-STD-020 / J-STD-033)
  7. Shipment report — inspection photos and report number with every lot (ISO 9001:2015)

What happens after you send an RFQ

  1. 1. First reply within 2 business hours (UTC+8)
  2. 2. Quote with price, lead time, date code and Incoterm
  3. 3. Pay by T/T, PayPal, L/C or escrow
  4. 4. Inspection photos sent before shipping
  5. 5. 30-day quality guarantee and return policy

How to buy: payment terms, Incoterms and 30-day guarantee →