8-digit LED driver with a 250 µA appetite
The Maxim Integrated ICM7218CIPI+ is a dedicated LED display driver that handles eight 7-segment digits from a single parallel interface. Its headline number is the 250 µA supply current — that is the quiescent draw while actively scanning all eight digits, which makes it a strong candidate for battery-powered panel meters, handheld instruments, or any display that stays on continuously. The wide 2V to 6V supply range means it can sit on a 3.3V or 5V rail without a separate regulator or level translator.
Parallel interface and through-hole reality
This part uses a parallel data bus to load digit data. That takes eight or more GPIOs from the host MCU plus a few control lines — not a concern if you have a spare port, but a pin-count hit versus a serial (SPI/I²C) driver. The 28-pin PDIP package (0.600" wide, 15.24 mm pitch) is through-hole only. That means wave solder or hand-solder in rework; no reflow profile. The wide body eats board area, but it is breadboard-friendly for prototyping and keeps the thermal dissipation spread out.
Temperature range and environment
Rated for -20°C to 85°C, which covers most industrial and commercial indoor environments — factory control panels, test equipment, point-of-sale displays. Not rated for automotive under-hood or extended military temperature. The ROHS3 compliance means no lead-exemption paperwork for EU shipments.
Lifecycle and sourcing posture
That removes the obsolescence risk for a new BOM line.