Upd16311: ~repack~

: Control interfaces requiring high visibility in low-light environments. Programming and Libraries

MCU (5V) UPD16311 ------- -------- SCK -----> CLK MOSI -----> DIN MISO <----- DOUT SS -----> CS | |---- VDD (+5V) |---- GND |---- VEE (-30V) via resistor/cap for VFD bias |---- SEG1-16 to VFD anodes (with resistors) |---- GRID1-11 to VFD grids (NPN transistors optional) |---- KS1-8 to key matrix rows |---- KO1-8 to key matrix columns

The (originally by NEC, now supported by Renesas Electronics) is a Vacuum Fluorescent Display (VFD) controller and driver IC. It is designed to interface between a microcontroller (MCU) and a VFD module, commonly found in consumer electronics from the 1990s–2000s (e.g., VCRs, DVD players, car dashboards, microwave ovens, and hi-fi stereos). upd16311

For hobbyists and engineers working with legacy hardware or new VFD projects, there are community-driven resources available. For example, a uPD16311 Library on GitHub provides low-level hardware functions to interface the chip with modern platforms. Part Number Package Type Description uPD16311GC QFP (Quad Flat Package) Standard surface-mount VFD controller UPD16311 Datasheet(PDF) - Renesas Technology Corp

: Typically functions between 4.5V to 5.5V with an operating temperature of -20°C to +70°C . Integrated Features : Control interfaces requiring high visibility in low-light

Features an 8-step dimming circuit for display brightness adjustment.

The UPD16311 contains 16 × 11-bit display RAM (16 segments × 11 digits). Addresses 0x00–0x0F correspond to segments (or digits, depending on mapping). Data bits: For hobbyists and engineers working with legacy hardware

The is a specialized Vacuum Fluorescent Display (VFD) controller and driver chip manufactured by NEC (now Renesas). ⚡ Key Features