In the 4xxx series we have ICs from many different manufacturers including: MMI, Signetics, Motorola, TI, Hitachi, National Semiconductor, Fairchild, and more.
Date codes are available from the mid 1970s to present.
Please add a note to your order if you are wanting a specific date code or manufacturer. If we have it, we'll ship it, otherwise the chips are pulled at random from the storage trays. Thank you.
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