NSC MM58342N Datasheet

MM58342 High Voltage Display Driver

MM58342 High Voltage Display Driver

February 1995

General Description

The MM58342 is a monolithic MOS integrated circuit utiliz­ing CMOS metal gate low threshold P- and N-channel devic­es. It is available both in 28-pin molded dual-in-line pack­ages or as dice. The MM58342 is particularly suited for driv­ing high voltage (35V max) vacuum fluorescent (VF) dis­plays (e.g., a 20-digit alphanumeric or dot matrix display).

Applications

Y

COPSTMor microprocessor-driven displays

Y

Instrumentation readouts

Y

Industrial control indicator

Y

Digital clock, thermostat, counter, voltmeter

Y

Word processor text displays

Y

Automotive dashboards

Block Diagram

Features

Y

Direct interface to high voltage display

Y

Serial data input

Y

No external resistors required

Y

Wide display power supply operation

Y

LSTTL compatible inputs

Y

Software compatible with NS display driver family

Y

Compatible with alphanumeric or dot matrix displays

Y

Display blanking control input

Y

Simple to cascade

FIGURE 1

TL/F/7925– 1

COPSTMis a trademark of National Semiconductor Corporation.

C

1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

TL/F/7925

Absolute Maximum Ratings

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.

Voltage at Any Input Pin V

Voltage at Any Display Pin VDDto V

a

V

V

l

DIS

l

DD

Storage Temperature

DD

a

0.3V to V

SS

DD

b

65§Ctoa150§C

b

b

36.5V

36.5V

0.3V

Operating Conditions

Supply Voltage (V

e

V

0V 4.5 5.5 V

SS

Display Voltage (V

Temperature Range

DD

DIS

Min Max Units

)

b

)

30

b

40

b

10 V

a

85

C

§

Power Dissipation at 25§C

Molded DIP Package, Board Mount 2.03W*
Molded DIP Package, Socket Mount 1.83W**

Junction Temperature 130

C

§

Lead Temperature (Soldering, 10 sec.) 260§C

*Molded DIP Package, Board Mount, i

derate 19.2 mW/

C above 25§C.

§

**Molded DIP Package, Socket Mount, i

derate 17.2 mW/

C above 25§C.

§

JA

JA

e

52§C/W,

e

58§C/W,

DC Electrical Characteristics

eb

T

40§Ctoa85§C, V

A

Symbol Parameter Conditions Min Typ Max Units

Power Supply Currents

I

DD

I

DIS

Input Logic Levels
DATA IN, CLOCK
ENABLE, BLANK

V

IL

V

IH

Logic ‘0’ 0.8 V
Logic ‘1’ (Note 1) 2.4 V

Data Output Logic Levels

V

OL

V

OH

V

OH

I

IN

C

IN

Logic ‘0’ I
Logic ‘1’ I
Logic ‘1’ I

Input Currents DATA IN, V
CLOCK ENABLE, BLANK

Input Capacitance DATA IN,
CLOCK ENABLE, BLANK

Display Output Impedances V

R

OFF

R

ON

V

DOL

Note 1: 74LSTTL V

Output Off

Output On

Display Output Low Voltage V

e

OH

DD

(Figure 3a)

(Figure 3b)

2.7V@I

OUT

e

5Vg0.5V, V

eb

400 mA, TTL V

e

0V unless otherwise specified

SS

e

V

VSSor VDD,V

IN

V

Disconnected

DIS

e

V

5.5V, V

DD

All Outputs Low

e

400 mA 0.4 V

OUT

eb

OUT

OUT

V
V
V
V
V
V

b

10 mAV

eb

500 mA 2.8 V

e

0V or V

IN

DD

DIS

DIS

DIS

DIS

DIS

DIS

DD

30VsV

OH

DD

e

5.5V, V

eb

10V 55 250 kX

eb

20V 60 300 kX

eb

30V 65 400 kX

eb

10V 700 800 X

eb

20V 600 750 X

eb

30V 500 680 X

e

5.5V, I

OUT

DIS

e

2.4V@I

SS

SS

s

b

OUT

e

SS

e

0V, V

e

0V

e

Open Circuit,

10V

eb

400 mA.

DIS

0V,

eb

30V

b

0.5 V

DD

b

10 10 mA

V

DIS

150 mA

10 mA

15 pF

a

V

2V

DIS

2