40-bit VFD driver for dual-rail systems
The ML9272MBZ03A from ROHM Semiconductor is a 40-bit vacuum fluorescent (VF) display driver IC in a 60-BSSOP package. It drives the grid and segment lines of a VFD panel, handling the high-voltage anode drive from a separate supply while the logic core runs on a lower rail.
Supply rails and temperature grade
This dual-rail architecture lets the logic interface with a 3.3 V microcontroller while the driver section delivers the higher voltage needed by the VFD filament and anode. The 60-SSOP package (0.551" body width, 14.00 mm) is a surface-mount footprint with a 0.8 mm pitch typical of this form factor.
