MSC1205 Datasheet | OKI Electric

DESCRIPTION The MSC1205 is a Bi-CMOS display driver for a 1/2-duty vacuum fluorescent display tube. It consists of a 64-bit shift register, latch circuits, a digital diming circuit, and drivers. The MSC1205 provides an interface with a microputer only by three signal lines: LOAD, DATA, and CLOCK. FEATURES - Power Supply Voltage: 8 to 18V (built-in 5V regulator for logic) - Built-in 1-terminal RC oscillation circuit (with external capacitor) - Built-in digital dimming circuit 10-bit resolution Programmable in the duty range of 0/2048 (0%) to 1015.5/2048 (49.6%). - Can directly drive 32 - 2 display anodes. - Built-in power-on reset circuit - Package options: 42-pin plastic DIP (DIP42-P-600-2.54) (Product name: MSC1205-RS) 44-pin plastic QFP (QFP44-P-910-0.80-2K) (Product name: MSC1205GS-2K) 1/15 ¡ Semiconductor .. BLOCK DIAGRAM SEG32 SEG31 GRID1 GRID2 VOLTAGE REGULATOR SEG2 SEG1 VDD VSS DRIVER 8 to 18V 32 bits LEVEL SHIFTER 5V BLANK DOWN COUNTER 10 bits 32 bits TIMING GENERATOR BL MULTIPLEXER ST 5V R (fosc) bo PARATOR (bo) 10 bits LATCH OSC OSC (SEGLD) (DIMLD) L LOAD (POR) LOAD TIMING CONTROL LATCH Q1-Q10 Q1-Q64 64 bits 32 bits L L LATCH 32 bits DATA CLOCK (2 bits) D Q1-Q64 (64 bits) TEST SHIFT REGISTER 2/15 ¡ Semiconductor .. INPUT AND OUTPUT CONFIGURATION - Schematic Diagrams of Logic Portion Input Circuit 1 VDD (5V...