Rockwell NRD2256

The Rockwell NRD2256 is an Itron tube segment decoder, display multiplexer and keypad decoder.

Rockwell NRD2256

Component type	Integrated Circuit
Designer	Sharp
Manufacturer	Rockwell
Introduced	1970s
Date Codes	7044, 7111, 7115, 7117, 7131

Gallery

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Utilized in

• Sharp EL-160
• Sharp EL-8
• Facit 1111

External Resources

• Reverse engineering blog post by Ken Sheriff