MSC1200V-01 Datasheet | OKI Electric

DESCRIPTION The MSC1200-01/1200V-01 is a Bi-CMOS display driver for 1/2-duty vacuum fluorescent display tube. This device consists of a 64-bit shift register, latches, an analog dimming circuit, a digital dimming circuit, a keyscan circuit, and drivers. The interface with a microputer can be done only with four signal lines (CS, DATA I/O, CLOCK, and INT). Also, the DATA I/O and CLOCK signal lines can be shared with other peripherals by using the chip select function. FEATURES - Power supply voltage : 8V to 18V (built-in 5V regulator for logic) - Operating temperature range : - 40°C to +85°C - 30-segment driver outputs (IOH = - 6m A at VOH = VDD - 0.8V) - Built-in analog dimming circuit (PWM: 12.5% Max at 6-bit resolution) - Built-in digital dimming circuit (11-bit resolution) - Built-in 5 x 6 keyscan circuit - Built-in RC oscillation circuit (external R and C) - Built-in power-on-reset circuit. - The product name differs depending on the bonding option pin selected: PWM OUT/BLANK IN : MSC1200-01 DATA OUT : MSC1200V-01 - Package : 56-pin plastic QFP (QFP56- P- 910-0.65- 2K) (Product name: MSC1200-01GS-2K/MSC1200V-01GS-2K) 1/26 FEDL1200V-03 ¡ Semiconductor MSC1200-01/1200V-01 .. BLOCK DIAGRAM SEG1 5V VDD GND 5V Regulator &POR POR 30 Segment Drivers Grid Driver SEG30 GRID1 GRID2 PLA (32 - 32 Matrix) TEST1 Multiplexer S1 S2 S3 S4 S5 S6 S7 S8 S9 SA Bit Latch Mode Selector D CK S1, S6, S7, S8 OSC0 OSC1 R/C OSC 64-Bit Shift Register R M3 M2 M1 M0 DATA OUT (Optional) Timing Generator R VPARK VDIM Analog Dimming R Selector Digital Dimming R S4 S9 SA R S2, S7, S3, S8 INT PWM OUT/ BLANK IN (Optional) CS DATAI/O CLOCK Control Circuit S5, S6, S9 - 6 Keyscan Circuit 0 1 2 34 5...