The Texas Instruments CD4054BE is a 4-segment LCD driver designed to convert 4-bit BCD input data into segment drive signals for a liquid crystal display. It comes in a 16-pin through-hole DIP package (16-DIP, 0.300" body width), making it straightforward to hand-assemble, socket, or rework on a prototype or low-volume production board.
3 V to 18 V supply — one rail for mixed-voltage systems
The 3V to 18V supply range means the CD4054BE can run directly from a 5V logic rail, a 12V industrial bus, or a 3V coin cell without a separate regulator. That is the kind of flexibility that simplifies a BOM when the display is sharing a backplane with 74HC logic or a 4000-series CMOS microcontroller. The quiescent current sits at 40 nA, so the driver can be left powered continuously in a battery-backed instrument without measurable drain — a real advantage for a panel meter or a handheld calibrator that stays on for years.
Through-hole DIP — rework-friendly footprint
The 16-DIP package (0.300" row spacing, 7.62 mm body width) is a standard through-hole footprint that fits a 0.1" pitch prototyping board or a socket. For a rework lab tech, that means no hot-air profile to dial in — just a desoldering station or a solder sucker and a fresh part. MSL is not a concern for a through-hole ceramic or plastic DIP; no bake-out required before hand-soldering.
The ROHS3 compliance covers the current EU RoHS directive, so no exemption expiry to track.