SM6311

SAMHOP Microelectronics Corp. VFD CONTROLLER / DRIVER GENERAL DESCRIPTION SM6311 is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/8 to 1/16 duty factor. Twelve segment output lines, 8 grid output lines, 8 segment/grid output drive lines, key scan, one display memory, IC control circuit are all incorporated in a single chip. This SM6311 is ideal as a peripheral device of a single chip microcomputer. SM6311 FEATURES * Multiple Display Modes * High Voltage Output * Key Scanning * General Purpose Input Ports (4 bit) * Dimming Circuitry (8 segment) * LED Display Ports(5 outs, 20mA max) * No external Resistors Needed for Driver Outputs * Serial Interface for controller APPLICATIONS * Audio System * Car Stereo * VCD * DVD * VCR * TV PIN DIAGRAM ( TOP VIEW) Sg19/G10 Sg18/G11 Sg17/G12 Sg16/G13 Sg15/G14 Sg14/G15 Sg13/G16 Sg20/G9 G5 G4 G3 G2 G1 VDD LED5 LED4 LED3 LED2 LED1 GND OSC 39 38 37 36 35 34 33 32 31 30 29 28 27 40 26 41 42 43 44 45 46 47 48 49 50 51 52 1 2 3 4 5 6 7 8 9 10 11 25 24 23 22 21 20 19 18 17 16 15 14 12 13 VDD VEE G6 G7 G8 Sg12/KS12 Sg11/KS11 Sg10/KS10 Sg9/KS9 Sg8/KS8 Sg7/KS7 Sg6/KS6 Sg5/KS5 Sg4/KS4 Sg3/KS3 Sg2/KS2 Sg1/KS1 VDD NC CLK STB S1 S2 S3 S4 K1 K2 K3 Page 1 DOUT DIN V.1.2, MAY,2003 K4 SAMHOP Microelectronics Corp. VFD CONTROLLER / DRIVER SM6311 BLOCK DIAGRAM Decoder DIN DOUT CLK STB VDD R OSC Timing Gen Serial Data I/F Dimming Ckt Segment Driver SG1 12 SG12 ~ SG13/ Grid16 SG20/ Grid9 ~ Grid1 Grid Driver Grid8 ~ 2...