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ICM7218AIJIHARRISN/a36avai8 Digit LED Display Driver
ICM7218AIPIMAXICN/a2060avai8 Digit LED Display Driver
ICM7218AIQIMAXIMN/a2avai8 Digit LED Display Driver
ICM7218BIJIHARRISN/a97avai8 Digit LED Display Driver
ICM7218B-IJI |ICM7218BIJIN/a3avai8 Digit LED Display Driver
ICM7218BIPIMAXN/a5avai8 Digit LED Display Driver
ICM7218BIQIMAXIMN/a6avai8 Digit LED Display Driver
ICM7218CIJIHARN/a13avai8 Digit LED Display Driver
ICM7218CIJI. |ICM7218CIJIHARN/a11avai8 Digit LED Display Driver
ICM7218CIPIMAXIMN/a500avai8 Digit LED Display Driver
ICM7218DIJIN/a539avai8 Digit LED Display Driver
ICM7218DIPIMAXIM N/a35avai8 Digit LED Display Driver
ICM7218DIPIN/a50avai8 Digit LED Display Driver
ICM7218DIPIINTERSILN/a200avai8 Digit LED Display Driver


ICM7218AIPI ,8 Digit LED Display DriverlVI/J X I/Vl 8 Digit LED Display Driver
ICM7218AIQI ,8 Digit LED Display DriverlVI/J X I/Vl 8 Digit LED Display Driver
ICM7218BIJI ,8 Digit LED Display DriverlVI/J X I/Vl 8 Digit LED Display Driver
ICM7218B-IJI ,8 Digit LED Display DriverElectrical Characteristics Table along with the descriptive excepts from manufacturer's data sheet ..
ICM7218BIPI ,8 Digit LED Display DriverGeneral Description The Maxim ICM7218 display driver interfaces micro- processors to an 8 digit ..
ICM7218BIQI ,8 Digit LED Display DriverELECTRICAL CHARACTERISTICS (V' = 5V uf- 10%, T, = 25°C) PARAMETER SYMBOL CONDITIONS MIN TYP M ..
IDT74FCT162646CTPA , FAST CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS (3-STATE)
IDT74FCT162646CTPV , FAST CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS (3-STATE)
IDT74FCT162652ATPV , FAST CMOS 16-BIT BUS TRANSCEIVER/ REGISTERS
IDT74FCT162823BTPV , FAST CMOS 18-BIT REGISTER
IDT74FCT162823CTPV , FAST CMOS 18-BIT REGISTER
IDT74FCT162823ET , FAST CMOS 18-BIT REGISTER


ICM7218AIJI-ICM7218AIPI-ICM7218AIQI-ICM7218BIJI-ICM7218B-IJI-ICM7218BIPI-ICM7218BIQI-ICM7218CIJI-ICM7218CIJI.-ICM7218CIPI-ICM7218DIJI-ICM7218DIPI
8 Digit LED Display Driver
2AIAL4l 2C fLAy'll
a Digit LED Display Driver
General Description
The Maxim ICM7218 display driver interfaces micro-
processors to an 8 digit, 7 segment, numeric LED
display. Included on chip are two types of 7 segment
decoders, multiplex scan circuitry, segment and digit
drivers, and an 8 X 8 static memory.
The ICM7218A and ICM721BB accept data in a serial
format and drive common anode (ICM7218A) or
common cathode (ICM7218B) displays. The ICM7218C
and ICM7218D accept data in a parallel format and
drive common anode (ICM7218C) or common cathode
(ICM7218D) displays. All four versions can display the
data in either hexadecimal or code B format. The
lCM7218A and ICM7218B also feature a No Decode
mode where each individual segment can be inde-
pendently controlled. This is particularly useful in
driving bar graphs.
The Maxim ICM7218 is an alternative for both the
Intersil ICM7218 and ICM7228. When ordering, specify
ICM7218 for both devices.
Applications
Instrumentation
Test Equipment
Hand Held Instruments
Bargraph Displays
Panel Meters
- Typical Operating Circuit
Features
. Improved 2nd Source! See 3rd page of this data
sheet for our "Maxim Advantage"'"
. Fast Access Time: 200ns Write Pulse Width
. Microprocessor Compatible
. Hexadecimal and Code B Decoders
. Individual Segment Control with "No Decode"
Feature
' Digit and Segment Drivers On-Chip
. Common Anode and Common Cathode LED
verslons available
t Low Power CMOS
Ordering Information
PART TEMP. RANGE PACKAGE'
|CM7218AIPI -2iy'C to +85°C 28 Lead Plastic DIP
ICM7218A|J| -20''C to +85°c 28 Lead CERDIP
|CM721BBIPI -20°c to +35°c 28 Lead Plastic DIP
ICM7218BlJl -200C to '85''C 28 Lead CERDIP
lCM7218ClPl -20''C to -85oC 28 Lead Plastic DIP
tCM7218CIJl -20''C to 485°C 28 Lead CERDIP
tCM7218DIPl -2U'C to ~85°c 28 Lead Plaslie DIP
lCM7218DIJl -20''C to o85°c 2fLe7difEnrj,
(Ordering Information Continued on Last Page.)
_v__ Pin Configuration
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8 Digit Microprocessor Display
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& the latest literature: http://,
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[CM 721 8/ ICM 7228
a Digit LED Display Driver
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ..................................... 6V
Digit Output Current ............................ 500mA
Segment Output Current ........................ 100mA
Input Voltage (any terminal) ..... v' + 0.3V to GND -0.3V
(Note 1)
Power Dissipation (28 Pin CERDIP) ...... 1.0W (Note 2)
Power Dissipation (28 Pin Plastic
with Copper Leadframe) ................... 1.0W (Note 2)
Power Dissipation (28 Pin Quad Pack) 0.8W (Note 2)
Operating Temperature Range .......... -200C to +85°C
Storage Temperature Range ............. -65''C to 160°C
Lead Temperature (Soldering 10 sec) ............. 300°C
Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device, These are stress ratings only, and
functional operation ol the device at these or any other conditions above those indicated in the operational sections of the specifications IS not
Implied. Exposure to absolute maximum ratings conditions for extended periods may affect dewce reliabittty,
ELECTRICAL CHARACTERISTICS
(V' = 5V A- 10%, T, = 25°C)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage v' Power Down Mode 3 g V
Quiescent Supply Current IO Shutdown (Note 3) 6 10 300 PA
. Decoder On, Outputs Open CH 250 950
Operating Supply Current lop No Decode, Outputs Open th 200 450 pA
_ . . Common Anode VOUT = v' - 2.0V -170
Digit Drive Current IDIG Common Cathode VouT = V" + IV 50 mA
Digit Leakage Current bot 100 PA
' Common Anode Voor = V' + 1.5V 20 25
Peak Segment Drive Current Ises Common Cathode VOUT = v' _ 2.0V -10 mA
Segment Leakage Current Iso; 50 pA
Display Scan Rate 'Mux Per Digit 250 Hz
Three Level Input
Logical "I" Input Voltage VINH Hexadecimal |CM721BC, D (Pin 9) 4.0 V
Floating Input VINF Code B ICM7218C, D (Pin 9) 2.0 3.0
Logical "O'' Input Voltage VINL Shutdown ICM7218C, D (Pin 9) 1.75
Three Level Input Impedance ' Note 3 100 kn
Logical "I" Input Voltage VIH 3.5 V
Logical "O" Input Voltage Vll 0.8
Write Pulse Width (Negative) tw 550 400
Write Pulse Width (Positive) 1w 7218A, B 550 400 ns
Write Pulse Width (Negative) tw 400 250
Write Pulse Width (Positive) tw 7218C, D 400 250 ns
Mode Hold Time tmn 7218A, B 150 ns
Mode Pulse Width tm 7218A, B 500 ns
Data Set Up Time tds 500 ns
Data Hold Time to 25 ns
Digit Address Set Up Time tdas ICM7218C, D 500 ns
Digit Address Hold Time tor, ICM721BC. D 100
Data Input Impedance ZIN 5-10pF Gate Capacitance 10'0 Ohms
Note 1: Due to the SCH structure inherent in the CMOS process used to fabricate these devices, connecting any terminal to a
voltage greater than v' or less than GROUND may cause destructive device tatchup. 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 lCM7218 should be turned on first.
Note 2: These limits refer to the package and will not be obtained during normal ogatgtigLDerate above 50°C by 25mW per °C.
Note 3: In the ICM7218C and D (random access versions) the Hexa/Code B/Shutdown input (Pin 9) has internal biasing
resistors to hold it at V'/P when Pin 9 is open circuited, These.resistors consume power and result in a Quiescent
Supply Current (la) of typically 50PA. The ICM7218A and B devices do not have these biasing resistors and thus are not
subject to this condition.
The electrical characteristics above are a reproduction of a portion of Intersil's copynghted (1983, 1984) data book, This intormatmn does not
constitute any representation by Maxim that Intersil’s products will perform in accordance with these specifications The Electrical Characteristics
Table along with the descriptive excepts from manufacturer's data sheet have been included in this data sheet solely for comparative purposes.
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