October 1998

8-19

MIC8030

MIC8030

Micrel

8

Symbol

Parameter

Condition

Min

Typ

Max

Units

Power Supply

V

CC

Logic Supply Voltage

4.5

5

5.5

V

V

BB

Display Supply Voltage

20

35

50

V

I

CC

Supply Current (external oscillator)

Note 1

35

250

µA

Supply Current (internal oscillator)

Note 1

35

250

µA

I

BB

Display Driver Current

f

7

100

µA

Inputs (CLK, DATA IN, LOAD, CS)

V

IH

Input High Level

V

V

CC

V

V

IL

Input Low Level

0

2.5

2.0

V

I

L

Input Leakage Current

<1

5

µA

C

I

Input Capacitance

Note 2

510

pF

Input LCD0

V

IH

LCD0 Input High Level

Externally driven

0.9V

CC

V

CC

50

V

V

IL

LCD0 Input Low Level

Externally driven

–0.5V

0

0.1V

CC

V

I

LCD0

LCD0 Leakage Current

V

2

10

µA

I

LCD0

LCD0 Leakage Current

V

6

100

µA

I

LCD0

LCD0 Leakage Current

V

1

mA

Capacitance Loads (typical)

C

LSEG

Segment Output

f

100

pF

C

LBP

Backplane Output

f

4000

pF

V

OAVG

DC Bias (Average) Any Segment

f

+25

mV

Output to Backplane

R

SEG

Segment Output Impedance

I

1.4

10

k

Ω

R

BP

Backplane Output Impedance

I

170

312

Ω

R

DATA OUT

Data Out Output Impedance

I

1.8

3

k

Ω

Note 1: CMOS input levels. No loads.

Note 2: Guaranteed by design but not tested on a production basis.

Absolute Maximum Ratings

18V

75V

Inputs (CLK, DATA IN, LOAD, CS)

–0.5V to 18V

Inputs (LCD0)

–0.5V to 50V

Storage Temperature

–65

°C to +150°C

Operating Temperature

–55

°C to +125°C

Maximum Current into and out of

any segment

20 mA

Maximum Power Dissipation,

any segment

50 mW

Maximum Total power dissipation

600 mW