Alternatives to CoreChips SL2.1A

CoreChips SL2.1A and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for CoreChips SL2.1A

SL2.1A compared against its qualified second sources
	SL2.1ACoreChips	SL2.1sCoreChips	SL2.2sCoreChips
FFF Compatibility
AI Summary	SL2.1A by CoreChips: SOP-16 Interface Controllers RoHS.	SL2.1S is a sibling from the same CoreChips series offering identical 4-port USB 2.0 STT hub functionality and single 5V supply operation. It uses a smaller CPC16 package instead of SOP16, requiring a PCB footprint update. Same CoreChips USB 2.0 4-port STT hub controller architecture Operates from single 5V supply with integrated 3.3V and 1.8V LDOs Significantly smaller board footprint (4.7mm x 3.0mm) Incompatible package and pin pitch (CPC16 with 0.53mm pitch vs SOP16 with 1.27mm pitch) Different pinout layout requiring PCB trace re-routing	SL2.2S is an expanded 28-pin SSOP sibling in the same CoreChips USB 2.0 hub family. It retains full 5V-supplied 4-port STT hub functionality while adding overcurrent protection, LED indicators, and EEPROM custom configuration features. Same CoreChips USB 2.0 hub core architecture Adds ganged overcurrent protection (OVCRN) and power control (PWRN) Supports optional LED indicators and external I2C EEPROM for custom VID/PID Incompatible package and pin count (28-pin SSOP vs 16-pin SOP16) Requires PCB redesign to accommodate additional pin connections
Lifecycle Status	Unknown	Unknown	Unknown
Market Availability	Unknown	Unknown	Unknown
REACH	Unknown	Unknown	Unknown
RoHS	Unknown	Unknown	Unknown
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