TP6317

TP6317 1/4 TO 1/11-DUTY VFD CONTROLLER/DRIVER General Description The TP6317 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/4 to 1/11-duty factor. It consists of 11 segment output lines, 6 grid output lines, 5 segment/grid output drivelines, a display memory, a control circuit, stand-by control, and a key scan circuit. Serial data is input to TP6317 through a three-line serial interface. This VFD controller/driver is ideal as a peripheral device for front panel control of green DVD/VCD feature. Features Multiple display modes (11-segment & 11-digit to 16-segment & 4-digit) Key scanning (6 × 4 matrices) Dimming circuit (eight steps) High-voltage output (VDD – 35V max) LED ports (3 chs, 20 mA max) General-purpose input port (1 bits) No external resistor necessary for driver outputs (P-ch open-drain + pull-down resistor output) Remote control code coding support NEC format Stand-by control Serial interface (CLK, STB, DIN, DOUT) Ordering Information TP 6317 Footprint Version Package Type Package Type F: LQFP S: 2.0 mm Footprint L: 3.2 mm Block Diagram IR_IN IR receiver Command decoder Dimming circuit SDA Segment driver SCL DIN DOUT CLK STB Serial I/F Display memory 16bit x 14 word 16-bit output latch Seg1 16 11 Seg11 5 R Segment/grid driver Seg12/Gird11 Data selector OSC Timing generator key scan 16-bit output latch 5 Seg16/Gird7 Key1 to Key4 11 4 6 Grid driver Key data memory (4x6) 5 Grid1 Grid6 1 bit latch 3 bit latch Powe...