HT16511

www.DataSheet4U.com HT16511 1/8 to 1/16 Duty VFD Controller Features · Logic voltage: 5V · High-voltage output: VDD-35V max. · Multiple display · 4-bit general purpose input port · No external resistors necessary for driver output (12-segment & 16-digit to 20-segment & 8-digit) · 12´4 matrix key scanning · 8 steps dimmer circuit · 5 LED output ports (20mA max.) (provides PMOS open-drain and pull-low resistor output) · Serial interface with MCU (CLK, CS, DI, DO) · 52-pin QFP package Applications · Consumer products panel function control · Industrial measuring instrument panel function control · Other similar application panel function control General Description HT16511 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/8 to 1/16 duty factor. It consists of 12 segment output lines, 8 grid output lines, 8 segment/grid output drive lines, 5 LED output ports, a control circuit, a display memory, and a key scan circuit. Serial data inputs to the HT16511 through a three-line serial interface. This VFD controller/driver is ideal as a peripheral device for an MCU. Block Diagram C o m m a n d D e c o d e r S e r ia l I/F D I D O C L K C S D is p la y R A M 2 0 - B it ´ 1 6 W o r d s 2 0 - B it O u tp u t L a tc h 2 0 8 1 2 S e g m e n t D r iv e r 1 2 S 1 /K 1 ~ S 1 2 /K 1 2 O S C O S C T im in g G e n e r a to r K e y S c a n K e y D a ta R A M (4 ´ 1 2 ) D a ta S e le c to r 8 1 6 8 D im m in g C ir c u it 8 M u ltip le x e d D r iv e ...