ICM7218BIJIR5254 datasheet(3/11 Pages) INTERSIL

Part #	ICM7218BIJIR5254

Description	8-Digit LED Microprocessor-Compatible Multiplexed Display Decoder Driver

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Manufacturer	INTERSIL [Intersil Corporation]

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FN3159.2

February 15, 2007

Absolute Maximum Ratings

Thermal Information

Supply Voltage (VDD to VSS). . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V

Digit Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA

Segment Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mA

Input Voltage (Any Terminal)(Note 1). . . . VSS -0.3V to VDD + 0.3V

Operating Conditions

Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C

Thermal Resistance (Typical, Note 2)

θJA (°C/W) θJC (°C/W)

CERDIP Package. . . . . . . . . . . . . . . . .

55

14

Maximum Storage Temperature Range . . . . . . . . . . -65°C to +150°C

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . +300°C

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the

device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTE:

1. Due to the SCR structure inherent in the CM0S process used to fabricate these devices, connecting any terminal to a voltage greater than VDD

or less than VSS may cause destructive device latchup. For this reason it is recommended that no inputs from sources operating on a different

power supply be applied to the device before its own supply is established, and when using multiple supply systems the supply to the ICM7218

should be turned on first.

2.

θ

JA is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.

Electrical Specifications

VDD = 5V, VSS = 0V, TA = +25°C, Display Diode Drop = 1.7V

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range

VSUPPLY

Operating

4

-

6

V

Power Down Mode

2

-

6

V

Quiescent Supply Current

IQ

Shutdown (Note 3)

6

10

300

μA

Operating Supply Current - Outputs Open

Circuit

IDD

Common Anode SEGS On (Note 6)

-

2.5

mA

Common Anode SEGS Off (Note 6)

-

500

μA

Common Cathode SEGS On (Note 6)

-

700

μA

Common Cathode SEGS Off (Note 6)

-

500

μA

Digit Drive Current

IDIG

Common Anode VOUT = VDD -2.0V

140

200

-

mA

Common Cathode VOUT = VSS +1.0V

50

100

-

mA

Digit Leakage Current - Shutdown Mode

IDLK

Common Anode VOUT = 2V

-

100

μA

Common Cathode VOUT = 5V

-

100

μA

Peak Segment Drive Current

ISEG

Common Anode VOUT = VSS +1.0V

20

40

-

mA

Common Anode VOUT = VDD -2.0V

-10

-20

-

mA

Segment Leakage Current - Shutdown

Mode

ISLK

Common Anode VOUT = VDD

-

100

μA

Common Cathode VOUT = VSS

-

100

μA

Display Scan Rate

fMUX

Per Digit

-

250

-

Hz

Three Level Input (Pin 9 ICM7218C/D)

Logical “1” Input Voltage

VIH

Hexadecimal

4.5

-

V

Floating Input

VIF

Code B

2.0

-

3.0

V

Logical “0” Input Voltage

VIL

Shutdown

-

0.4

V

Three Level Input Impedance

ZIN

Note 3

-

100

-

k

Ω

Logical “1” Input Voltage

VIH

3.5

-

V

Logical “0” Input Voltage

VIL

--

0.8

V

Wrtie Pulse Width (Low)

tWL

7218A, 7218B

550

400

-

ns

7218C, 7218D

400

250

-

ns

Mode Hold Time

tMH

7218A, 7218B

150

-

ns

Mode Setup Time

tMS

7218A, 7218B

500

-

ns

Data Setup Time

tDS

500

-

ns

Data Hold Time

tDH

7218A, 7218B

50

-

ns

7218C, 7218D

125

-

ns

Digital Address Setup Time

tAS

7218C, 7218D

500

-

ns

ICM7218

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