MC3401 Datasheet | ABOV

ABOV SEMICONDUCTOR 16 SEGMENT X 12 GRID VFD DRIVER WITH KEYSCAN Data Sheet (Ver. 1.4) Version 1.4 Published by FAE Team 2008 ABOV Semiconductor Co., Ltd. All right reserved Additional information of this data sheet may be served by ABOV Semiconductor offices in Korea or Distributors. ABOV Semiconductor reserves the right to make changes to any information here in at any time without notice. The information, diagrams and other data in this manual are correct and reliable, however, ABOV Semiconductor is in no way responsible for any violations of patents or other rights of the third party generated by the use of this manual. REVISION HISTORY VERSION 1.4 (2009. 07. 08) This Book Modified the mand Data on page 19. VERSION 1.31 (2009. 01. 06) Modified the Format of Dout at Transmission (Data Read) on page 21. VERSION 1.10 (2008. 09. 03) Updated description for LED Setting Diagram on page 22. Updated Serial munication timing diagram for initialization setting on page 22. Updated Block Diagram on page 6. VERSION 1.00 (2008. 08. 14) The first Edition July 8, 2009 Ver.1.4 3/26 DESCRIPTION MC3401 is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/4 to 1/12 duty factor. Sixteen segment output lines, 4 grid output lines, 8 segment/grid output drive lines, one display memory, control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip micro puter. Serial data is fed to MC3401 via a three-line serial interface. It is housed in a 44-pin LQFP, MQFP Features - CMOS Technology - Low Power Consumption - Key Scanning (16 x 2 matrix) - Multiple Display Modes: (16 segments, 12 digits to 24 segments, 4 digits) - 8-Step Dimming Circuitry - LED Ports Provide (4 channels, 20m A max.) - Serial Interface for Clock, Data Input, Data Output, Strobe Pins - No External Resistors Needed for Driver Outputs - Available in 44-pin LQFP, MQFP APPLICATION - Microputer...