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E2C0019-27-Y5

隆 Semiconductor

MSC1208

隆 Semiconductor

This version: Nov. 1997

MSC1208

Previous version: Jul. 1996

23-bit

樓

2 Duplex Controller/Driver with Digital Dimming and Keyscan Function

GENERAL DESCRIPTION

The MSC1208 is a Bi-CMOS display driver for 1/2-duty vacuum fluorescent display tube.

It consists of 58-bit shift registers, latch circuits, a 10-bit digital dimming circuit, 4

樓

4 switch

matrix, and a keyscan circuit for 2-channel, 3-contact rotary switch. With these features, the

MSC1208 not only can display frequencies for audio systems used in automobile applications

and various information, but also can accept keyboard entry. Thus the front panel functions can

be carried out only by this IC.

Since the MSC1208 has the data parity check function and the self-check functions, inspection

at shipment and failure detection can easily be performed.

In addition, since the MSC1208 uses serial interfacing, only two signal lines, DATA ENABLE

and DATA I/O, are used for connection with a microcontroller.

FEATURES

鈥?Power supply voltage

: V

DD

=8 to 18V (Built-in 5V-regulator for logic)

鈥?Operating temperature range

: 鈥?0 to 85擄C

鈥?Directly drives 23 segments

: I

OH

=鈥?.8mA, Max. at V

OH

=V

DD

鈥?.8V

鈥?Built-in 4

樓

4 switch matrix and key scan circuit for 2ch, 3-contact switching

鈥?Built-in digital dimming circuit with 10-bit resolution

鈥?Data parity check function

鈥?Self-check function (segment ON/OFF at intervals of about 1 second in test mode)

鈥?Built-in RC oscillator (capacitor is connected externally)

鈥?Built-in power-on reset circuit

鈥?Package:

42-pin plastic shrink DIP (SDIP42-P-600-1.78) : (Product name : MSC1208SS)

樓樓樓

indicates the code number.

1/14

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