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Part Number: MSC1230
Description: The MSC1230 is a Bi-CMOS display driver with digital dimming function. It enables switching between 1/...
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MSC1230
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General Description
MSC1230 General Description
The MSC1230 is a Bi-CMOS display driver with digital dimming function. It enables switching between 1/3-duty vacuum fluorescent (VF) display tube and universal VF display tube by pin control.
The MSC1230 consists of a 112-bit shift register, a 111-bit latch, a 10-bit digital dimming circuit, 37 segment drivers, and 3 grid drivers.
The MSC1230 provides an interface with a microcomputer only by three signal lines: CS, DATA-IN, and CLOCK.
By using the chip select function, the DATA-IN and CLOCK signal lines can be shared by other peripheral circuits.
MSC1230 Maximum Ratings
| Parameter | Symbol | Condition | Rating | Unit |
| Supply Voltage | VDD | - | 0.3 to +20 | V |
| Input Voltage | VIN | All input | 0.3 to +6.0 | V |
| Storage Temperature | TSTG | - | 65 to +150 | °C |
| Power Dissipation | PD | Ta = +85°C | 400 | mW |
MSC1230 Features
• Power supply voltage : VDD=8 V to 18 V (built-in 5 V regulator for logic circuit)
• Operating temperature range : Ta=40 °C to +85 °C
• 37-segment driver outputs : IOH=6 mA at VOH = VDD 0.8 V
• 3-grid driver outputs : IOH=30 mA at VOH = VDD 0.8 V
• Built-in digital dimming circuit (10-bit resolution)
• Switchable between 1/3-duty VF display tube and universal VF display tube*
When SEL pin is left open : Selects universal VF display tube (The grids GRID1, GRID2,
and GRID1+GRID2 are turned on repeatedly in this order)
When SEL pin is used at 0 V : Selects 1/3-duty VF display tube (The grids GRID1, GRID2,
and GRID3 are turned on repeatedly in this order)
• Built-in oscillation circuit (external R and C)
• Built-in Power-On-Reset circuit
• Package:
56-pin plastic QFP (QFP56-P-910-0.65-2K)(Product name: MSC1230GS-2K)
• Operating temperature range : Ta=40 °C to +85 °C
• 37-segment driver outputs : IOH=6 mA at VOH = VDD 0.8 V
• 3-grid driver outputs : IOH=30 mA at VOH = VDD 0.8 V
• Built-in digital dimming circuit (10-bit resolution)
• Switchable between 1/3-duty VF display tube and universal VF display tube*
When SEL pin is left open : Selects universal VF display tube (The grids GRID1, GRID2,
and GRID1+GRID2 are turned on repeatedly in this order)
When SEL pin is used at 0 V : Selects 1/3-duty VF display tube (The grids GRID1, GRID2,
and GRID3 are turned on repeatedly in this order)
• Built-in oscillation circuit (external R and C)
• Built-in Power-On-Reset circuit
• Package:
56-pin plastic QFP (QFP56-P-910-0.65-2K)(Product name: MSC1230GS-2K)
MSC1230 Connection Diagram
MSC1230
PDF/DataSheet Download
- Datasheet: MSC1230
- File Size: 118438 KB
- Manufacturer: OKI [OKI electronic componets]
- Click here to Download
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