D16311GC

DATA SHEET SHEET DATA MOS INTEGRATED CIRCUIT
PD16311 1/8- to 1/16-DUTY FIPTM (VFD) CONTROLLER/DRIVER The
PD16311 is a FIP (Fluorescent Indicator Panel or 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, a display memory, a control circuit, and a key scan circuit. Serial data is input to the
PD16311 through a three-line serial interface. This FIP controller/driver is ideal as a peripheral device of a single-chip microcomputer. FEATURES Many display modes (12-segment & 16-digit to 20-segment & 8-digit) Key scanning (12
4 matrices) Dimming circuit (eight steps) High-voltage output (VDD  35 V max). LED ports (5 chs., 20 mA max). General-purpose input port (4 bits) No external resistor necessary for driver outputs (P-ch open-drain + pull-down resistor output) Serial interface (CLK, STB, DIN, DOUT) ORDERING INFORMATION Part Number Package 52-pin plastic QFP ( 14)
PD16311GC-AB6 Document No. IC-3306 (1st edition) Date Published March 1997 P Printed in Japan © 1993
PD16311 BLOCK DIAGRAM Dimming circuit Command decoder DIN DOUT Serial I/F CLK STB VDD Timing generator key scan 16-bit shift register Data selector R OSC 8 Segment/grid driver 20-bit output latch Segment driver Seg1 Display memory 20 bit × 16 Word 20 12 Seg12 8 Seg13/Grid16 Seg20/Grid9 Key data memory (4 × 12) Key1 to Key4 8 Grid driver Grid1 ...