The CD4001B, CD4002B, and CD4025B NOR gates allow the system designer to directly implement the NOR function and enhance the existing family of CMOS gates. Every input and output is buffered. The CD4001B, CD4002B, and CD4025B types are available in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packaging (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffix).
Datasheet