GENERAL DESCRIPTION
The MSC1218 is a Bi-CMOS driver for 1/3 duty vacuum fluorescent display tube. It contains a 64-bit shift register, a 63-bit latch, a 10-bit digital dimming circuit, and three grids. The MSC1218 has only three microcontroller interface signal lines: CS, D-IN, and CLOCK. The chip select function enables the D-IN and CLOCK lines to be shared with other peripheral circuits.

FEATURES
• Power supply Voltage : 8 to 18V (built-in 5V regulator for logic circuit)
• Operating temperature : -40 to +85°C
• 21-segment driver outputs : IOH=–6mA at VOH=VDD–0.8V
• 3-grid driver outputs : IOH=–16mA at VOH=VDD–0.8V
• Built-in digital dimming circuit : 10-bit resolution
• Built-in RC oscillation circuit : External R and C
• Built-in Power-On-Reset circuit
• Package:
32-pin plastic SSOP(SSOP32-P-430-1.00-K) (Product name: MSC1218GS-K)