MX0141KA0AVW ONFI 4.1 1:4 High Speed Expander FCCSP-126 from IDT

The MX0141KA0 is comprised of a high-speed 1:4 multiplexer (mux) path and a low-speed, multi-function control logic path.
The high-speed path consists of four passive switches that connect input port “IN” to four 16-bit output ports A, B, C, and D. The passive switches, which close selectively, form a bidirectional multiplexer.
The low-speed path consists of active multi-function IOs that can be configured in different modes. This path also can be configured as a unidirectional 1:4 mux with a 4-bit port width, 4:16 decoder, or 16-bit signals for port selection. The CIO pins can be used to drive Chip Enable pins of the NAND dies or the high-speed mux selector.

MX0141KA0AVW, MX0141KA0AVW8
https://www.idt.com/document/sds/mx0141ka0-short-form-datasheet
https://www.idt.com/products/memory-logic/memory-interface-products/memory-multiplexers/mx0141k-onfi-41-14-multiplexer-ssds

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