4.5-digit LCD driver in a 40-pin DIP
The Maxim ICM7224IPL+ is a dedicated LCD driver IC that drives a 4.5-digit, 7-segment LCD display directly. It integrates the backplane oscillator and segment drivers, so no external backplane driver is needed — a single chip handles the full display interface. The 10 µA typical supply current across the 3V to 6V range makes it a natural fit for battery-powered instruments and portable meters where every microamp matters.
What the 10 µA supply means for a BOM decision
At 10 µA quiescent draw, this part is in the low-power tier for LCD drivers — it won't dominate the battery budget in a handheld multimeter or a panel meter running off a coin cell. The 3V to 6V supply window covers two alkaline cells in series (3V fresh) through a 6V regulated rail, so it adapts to common portable supply schemes without a boost converter. If your design runs on 3.3V or 5V, the ICM7224IPL+ lands right in the middle of its rated range.
Package, temperature, and environment
It comes in a 40-pin PDIP (0.600" body width, 15.24 mm pitch), through-hole mount — the classic DIP footprint for breadboarding and production boards that avoid fine-pitch SMT. The -20°C to 85°C operating temperature covers indoor industrial and commercial equipment; not rated for automotive under-hood or extended outdoor exposure, but fine for a benchtop instrument, a control-panel meter, or a medical monitor in a conditioned space.
Lifecycle and sourcing posture
The lifecycle stage is marked 'current' and the product status is 'Active' — no EOL notice, no NRND flag. ROHS3 compliant. This part is still a standard production item, not a last-time-buy scavenge. For a BOM freeze or a new design, it is a safe line item without an obsolescence clock ticking.