CD4001B, CD4002B, and CD4025B NOR gates provide the system designer with direct implementation of the NOR function
and supplement the existing family of CMOS gates. All inputs and outputs are buffered.
The CD4001B, CD4002B, and CD4025B types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix),
14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and
14-lead thin shrink small-outline packages (PW and PWR suffixes).