ULN2003A Alternatives: Darlington Array Cross-Reference
Seven channels, built-in clamp diodes, and a pinout that has not changed in forty years — what to check before you substitute one.
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Interface, driver, and transceiver products identified by the audited product type values.
MAX9121EUE-T - Analog Devices Interface IC, TSSOP-16
MAX9111ESA-T - Analog Devices Interface IC, SOIC-8
DS90C032BTM/NOPB - Texas Instruments Interface IC, SOIC-16
ADN4663BRZ - Analog Devices Interface IC, SOIC-8
SN65LVDS104D - Texas Instruments Interface IC, SOIC-16
SN65LVDS17DRFT - Texas Instruments Interface IC, SON
DS92001TMAX/NOPB - Texas Instruments Interface IC, SOIC-8
MAX9171EKA+T - Analog Devices Interface IC, SOT-23-8
SN65LVDM051D - Texas Instruments Interface IC, SOIC-16
DS90CR288MTD - Texas Instruments Interface IC, TSSOP-56
DS90C032TMX NOPB - Texas Instruments Interface IC
SN65LVDT14PW - Texas Instruments Interface IC, TSSOP-20
DS90CR217MTD/NOPB - Texas Instruments Interface IC, TSSOP-48
DS90CR218AMTDX/NOPB - Texas Instruments Interface IC, TSSOP-48
DS25BR101TSDE/NOPB - Texas Instruments Interface IC, SON
DS125MB203SQ/NOPB - Texas Instruments Interface IC, QFN
DS90C401M/NOPB - Texas Instruments Interface IC, SOIC-8
DS90LV012ATMF/NOPB - Texas Instruments Interface IC, SOT-23-5
MAX9170ESE - Analog Devices Interface IC, SOIC-16
ADN4697EBRZ - Analog Devices Interface IC, SOIC-14
DS25BR101TSDX/NOPB - Texas Instruments Interface IC, WSON-8
DS91C176TMA/NOPB - Texas Instruments Interface IC, SOIC-8
DS15MB200TSQX/NOPB - Texas Instruments Interface IC, WQFN-48
DS15BA101SDE/NOPB - Texas Instruments Interface IC, SON
Supply boundary
Product records help identify a manufacturer part number and technical family. A listed part may be fulfilled from Chip-seek warehouse-held stock or a reviewed sourcing channel. Source, quantity, packaging, date code, MOQ, price and lead time are confirmed before an order is accepted.
From the desk
Market signals, technical notes, and practical sourcing guidance for semiconductor procurement.
Seven channels, built-in clamp diodes, and a pinout that has not changed in forty years — what to check before you substitute one.
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The 8 MB SPI flash behind a million embedded designs: package traps, firmware checks, and when 64 Mbit is still the right density.
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The 16-pin transceiver that turns 3.3 V logic into RS-232: which parts really fit, and why the charge-pump capacitors decide the outcome.
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The three-terminal regulator on millions of boards: which parts really fit, and why the thermal math matters more than the pinout.
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A 3 A buck converter that refuses to die: which replacements fit the same pads, which need a new layout, and how to choose between them.
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The 48-pin Cortex-M3 that became an industry default: which alternatives really fit, and what breaks when you swap one in.
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4 MB of SPI flash: the smallest density that still supports OTA, and the one where package width trips up more designs than density does.
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A practical cross-reference for the 128 Mbit SPI NOR part: what must match, where firmware breaks, and how to qualify a second source.
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