FEDL9212-01

LAPIS Semiconductor

ML9212

5/17

Symbol

Pin

Type

Description

SYNC IN 1, 2

16, 17

I

Synchronous signal input.

When the slave mode is selected, connect these pins to the master

side SYNC OUT 1, and 2 pins.

When the master mode is selected, the input level of these pins are

DIM OUT

28

O

Dimming pulse output.

Connect this pin to the slave side DIM IN pin.

SYNC OUT

1, 2

26, 27

O

Synchronous signal output.

Connect these pins to the slave side SYNC IN 1, and 2 pins.

OSC0

23

I/O

RC oscillator connecting pins.

Oscillation frequency depends

on display tubes to be used.

For details refer to ELECTRICAL CHARACTERISTICS.

NC

13,22,29

-

OPEN pins.

ABSOLUTE MAXIMUM RATING

Parameter

Symbol

Condition

Ratings

Unit

Driver Supply Voltage

—

–0.3 to +20

V

Logic Supply Voltage

—

–0.3 to +6.5

V

Input Voltage

—

V

Power Dissipation

Ta

 105°C

233

mW

Storage Temperature

—

–55 to +150

°C

SEG1 to 22

–10.0 to +2.0

mA

SEG23 to 32

–20.0 to +2.0

mA

GRID1 to 3

–10.0 to +20.0

mA

Output Current

DIM OUT, SYNC OUT1,

SYNC OUT2

–2.0 to +2.0

mA

RECOMMENDED OPERATING CONDITIONS

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

Driver Supply Voltage

—

8.0

13.0

18.0

V

Logic Supply Voltage

—

4.5

5.0

5.5

V

High Level Input Voltage

All inputs except OSC0

—

—

V

Low Level Input Voltage

All inputs except OSC0

—

—

V

Clock Frequency

—

—

—

2.0

MHz

VDD

OSC0

R

C