Holtek Semiconductor HT16511
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. This VFD controller/driver is ideal as a peripheral device for an MCU.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
Serial data inputs to the HT16511 through a three-line serial interface. 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...