The MM5452V/NOPB: ROHS3 compliant, so no RoHS exemption paperwork needed for EU or California-market builds.
4.5-digit LCD driver with serial interface
Drives 4.5 digits of 7-segment LCD plus decimal point, alphanumeric characters, and bar-graph segments — all from a single serial data stream, which keeps the host MCU pin count low.
44-PLCC J-lead — board-fit note
Housed in a 44-lead PLCC with J-leads (44-LCC), body size 16.58x16.58 mm — the J-lead footprint is standard for PLCC sockets or direct solder with a reflow profile that matches the lead co-planarity tolerance. Surface-mount only; the J-lead form factor is less prone to tombstoning than gull-wing, but the pad layout must follow the PLCC-44 land pattern (IPC-SM-782) to avoid solder bridging on the inner rows.