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MSC1209

OKI electronic componets
Part Number MSC1209
Manufacturer OKI electronic componets
Description 42-Bit Vacuum Fluorescent Display Tube Driver
Published Mar 24, 2010
Detailed Description E2C0020-29-53 ¡ Semiconductor MSC1209 ¡ Semiconductor This version: May 1999 MSC1209 Previous version: Nov. 1997 www.D...
Datasheet PDF File MSC1209 PDF File

MSC1209
MSC1209

Overview
E2C0020-29-53 ¡ Semiconductor MSC1209 ¡ Semiconductor This version: May 1999 MSC1209 Previous version: Nov.
1997 www.
DataSheet4U.
com 42-Bit Vacuum Fluorescent Display Tube Driver with Digital Dimming Function GENERAL DESCRIPTION The MSC1209 is a Bi-CMOS display driver for a 1/2-duty vacuum fluorescent display tube.
The MSC1209 consists of an 84-bit shift register, an 84-bit latch circuit, a 10-bit digital dimming circuit, 42-bit segment drivers, a 2-bit grid circuit, and a cascade control circuit.
The MSC1209 is interfaced with a microcontroller by using three signal lines of LOAD, CLOCK, and DATA.
The cascaded MSC1209 ICs can share LOAD, CLOCK, and DATA.
FEATURES • Power supply voltage: 8V to 18V (Built-in 5V regulator for logic) • Operating temperature range: –40 to +105°C • Driving 42 segments directly: VOH=VDD–0.
5V at IOH=–3.
0mA (VDD=15.
0V) • Built-in digital dimming circuit 10-bit resolution Programmable in the duty range of 0/2048 (0%) to 1016.
5/2048 (49.
6%) • 3 interfaces with microcontroller: LOAD, CLOCK, DATA • Cascade connection available (The cascaded MSC1209 ICs can share LOAD, CLOCK, and DATA.
) • Built-in oscillation circuit with an external capacitor (a single pin is used) • Built-in power-on reset circuit • Package: 56-pin plastic QFP (QFP56-P-910-0.
65-2K) (Product name: MSC1209GS-2K) 1/15 ¡ Semiconductor MSC1209 www.
DataSheet4U.
com BLOCK DIAGRAM GRID1 GRID2 SEG1 SEG42 2-bit Grid Driver VDD VSS Voltage Regulator 5V 5V POR 42-bit Segment Driver VDD=8 to 18V Level Shifter VCC=5.
0V (Regulator) BLANK MODEA Timing Generator Multiplexer POR OSC OSC 10-bit Digital Dimming POR L 10-bit Latch 84 bits MODEB LOAD LOAD Timing Control 10-bits (Q1 to Q10) POR DATA CLOCK D 2-bit S/R D Q1-Q84 84-bit Shift Register 84-bit Latch SEL L 2/15 ¡ Semiconductor MSC1209 www.
DataSheet4U.
com INPUT AND OUTPUT CONFIGURATION • Schematic Diagram of Logic Portion Input • Schematic Diagram of Logic Portion Input Circuit 1 Circuit 2 VDD (5V Reg.
) VDD (5V Reg.
)...


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