uPD16312

DATA SHEET MOS INTEGRATED CIRCUIT µPD16312 1/4- to 1/11-DUTY FIPTM (VFD) CONTROLLER/DRIVER DESCRIPTION The µPD16312 is a FIP (Fluorescent Indicator Panel, or 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 drive lines, a display memory, a control circuit, and a key scan circuit. Serial data is input to the µPD16312 through a three-line serial interface. This FIP controller/driver is ideal as a peripheral device for a single-chip microcomputer. FEATURES Multiple display modes: 11-segment & 11-digit to 16-segment & 4-digit Key scanning: 6 x 4 matrix Dimming circuit: 8 steps High-withstanding-voltage output: VDD − 35 V MAX. LED ports: 4 ch, 20 mA MAX. General input port: On-chip 4 bit No external resistors necessary for driver outputs: P-ch open-drain + pull-down resistor output Serial interface: CLK, STB, DIN, DOUT ORDERING INFORMATION Part Number µPD16312GB-3B4, µPD16312GB-3BS Package 44-pin Plastic QFP (10 x 10) The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all products and/or types are available in every country. Please check with an NEC Electronics sales representative for availability and additional information. Document No. S17384EJ1V0DS00 (1st edition) Date Published December 2004 NS CP(K) Printed in Japan 1993, 2004 1....