The CD4056BMT is a BCD-to-7-segment LCD driver from Texas Instruments, designed to drive a single LCD digit from a 4-bit BCD input. It operates across a 3V to 18V supply range and draws only 40 nA typical supply current, making it suitable for battery-powered or low-power instrumentation displays. The device is rated for the full industrial temperature span of -55°C to 125°C, covering harsh-environment applications.
The 16-SOIC footprint is common and compatible with standard reflow profiles, simplifying PCB layout for mixed-signal boards.
Lifecycle and compliance
For new designs, this part is a safe choice — no imminent obsolescence risk, and the wide supply range and temperature grade cover most industrial and automotive-adjacent applications.