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ICM7211AIPLHIPN/a6avaiFour digit display decoder/driver. LCD, output code
ICM7211AMIPLINTERSIL,INN/a100avaiFour digit display decoder/driver. LCD, output code
ICM7211IPLHARRISN/a20avaiFour digit display decoder/driver. LCD, output code
ICM7211IPLN/AN/a94avaiFour digit display decoder/driver. LCD, output code
ICM7211MIPLINTERSIN/a23avaiFour digit display decoder/driver. LCD, output code
ICM7211MIPLMAXIMN/a156avaiFour digit display decoder/driver. LCD, output code
ICM7212AIPLMAXN/a8avaiFour digit display decoder/driver. LED, output code
ICM7212AIPLINTERSILN/a5530avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLHARRISN/a24avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLMAXN/a50avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLMAXIMN/a200avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLHARN/a37avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLINTELN/a44avaiFour digit display decoder/driver. LED, output code
ICM7212AMIPLINTERSILN/a5530avaiFour digit display decoder/driver. LED, output code


ICM7212AIPL ,Four digit display decoder/driver. LED, output codeFeatures Improved 2nd Source! (See 3rd page for "Maxim Advantage"'"). . Dlrectty drives Four ..
ICM7212AIPL ,Four digit display decoder/driver. LED, output codeELECTRICAL CHARACTERISTICS (lt' = 5V; TA = 25''C, Test circuit unless noted) ICM7211 CHARACTE ..
ICM7212AIPL+ ,Four Digit Display Decoder/Driversapplications. The ICM7212 LED display driver reduces system cost by eliminating external level tra ..
ICM7212AMIPL ,Four digit display decoder/driver. LED, output code19-959; Rev. 1; 11/89 General Descrip tion The Maxim ICM7211 (LCD) and ICM7212 (LED) four di ..
ICM7212AMIPL ,Four digit display decoder/driver. LED, output code19-959; Rev. 1; 11/89 General Descrip tion The Maxim ICM7211 (LCD) and ICM7212 (LED) four di ..
ICM7212AMIPL ,Four digit display decoder/driver. LED, output codeelectrical characteristics above are a reproduction ofa portion of intersi/‘s copyrighted ( 1981 ) ..
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ICM7211AIPL-ICM7211AMIPL-ICM7211IPL-ICM7211MIPL-ICM7212AIPL-ICM7212AMIPL
Four digit display decoder/driver. LCD, output code
19-959; Rev. f; 11/89
General Descrip tion
The Maxim ICM7211 (LCD) and ICM7212 (LED) four
digit, seven segment display drivers include input data
latches, BCD to segment decoders, and all level
translation and timing circuits needed to drive non-
multiplexed displays.
Both the ICM7211 and ICM7212 are available in two
data inputconfigurations: a multiplexed BCD interface
version and a microprocessor interface version. The
multiplexed BCD interface version has four BCD data
inputs and four separate digit strobes. The micro-
processor interface versions, designated by an "M"
suffix, have four BCD data inputs, two digit address
lines, and two chip selects or WRITE inputs.
The ICM7211 and ICM7212decode the BCD datavia an
onboard character font ROM. There are two different
character fonts available, hexadecimal and Code B.
Applications
The low power consumption of the ICM7211 LCD
driver makes it ideal for battery powered and portable
applications. The ICM7212 LED display driver reduces
system cost by eliminating external level translators,
external segment drivers, and segment current limiting
resistors.
Digital Panel Displays
Intelligent Instruments
Remote Display Units
Microprocessor-to-Visual Communication
Typical Operating Circui t
amen ClC7ClC i LT C/ Cl Cl
LCD DISPLAY LTI C Li Cl i Cl Cl Cl Cl
J 28 I f,
HN-- MAXIM Hill- MAXIM
gt ICM7217 -grc ICM7211(A)
a r I 4 r 1
BCD/BINARV l d '
men Ds
SELECTS m
(Detailed Circuit Diagram-Figure 14 )
2fly1L4fi 1i'C I] AM]
Four Digit Display
Deettdermriitrergt
Features
Improved 2nd Source! (See 3rd page for
"Maxim Advantage"'").
. Directly drives Four Digit, 7 Segment Dlsplays
ICM7211 - Non-multlplexed Liquid
Crystal Display (LCD)
ICM7212 - Non-mulllplexed Common
Anode LED
Multiplexed BCD Interface and pP Interface
Versions
. No external components needed
. Low Power CMOS - 25pw typ. (display
blanked)
___ Ordering Information
OUTPUT INPUT
DEVICE TYPE CODE CONFIGURATION
ICM7211 (LCD) Hexadecimal Multiplexed 4-Bit
ICM7211A (LCD) Code B
ICM7211M (LCD) Hexadecimal pp Interface
ICM7211AM (LCD) Code B
ICM7212 (LED) Hexadecimal ' '
M It I d 4-Bit
ICM 7212A (LED) Code B U ' axe l
ICM7212M (LED) Hexadecimal
pp Interface
TCM7212AM (LED) Codge -
(Ordering information continued on page 4)
Pin Con figurations
Top View 40 Lead DIP
v‘ , n V Em
E1 IE E CI
tM [E E BI
F1 CE TEI A1
BP 7 E OSCILLATOR
A2 [E as am:
B2 LE ca Dd
c2 CE z: iii) 25:22,
92': MAXIM 32 D2 INPUTS
52E ICM7211 31 iM
G2 ll ICM7211A 30 Ba
F2 flf E B2 DATA
A3 13 ca iii) INPUTS
an 14 " an
on 15 " F4
m 16 25 ca
E3 11 " E4
GI! [E " on
" 19 22 c4
M [E El B4
(Pin Configurations continued)
The "Maxim Advantago"'%Ffies an upgraded quality level. At no additional cost we effer e second-source device that is subject to the
following: guaranteed performance over temperature along with tighter test siyrtritica.tiont. on many key parameters; and dewce
enhancements, when needed, that result in improved performance without changing the functionality.
IVI/JXI/VI
Maxim Integrated Products 1
3331/ MZJWOH
flCM 7217 17/ 72‘V2
Four Digit Display
Ii2)egttetdlerfit)hriitrertg
ABSOLUTE MAXIMUM RATINGS
Power Dissipation (Note 1) ............... 0.5 W@ 70° C Stresses above those listed under Absolute Maximum Ratings may
Supply Voltage w................................. 6.5V cause permanent damage to the device. These are stress ratings
Input Voltage (Any only and functional operation of the device at these or any other
Terminal) (Note 2) ............ V“ +0.3V GROUND -0.3V (it,','giii.'tanti', above thtese ilhcijicgted in the ','if,'g',t,'t'lt sections of the
. ' - o o speci ica ions is no mp e . xposuretoa so ute maximum rating
f2Qltln'j2JI'trtrte l' £13299 .......... 6393133223 conditions for extended periods may affect device reliability.
( Lead Temperature (Soldering 10 sec.) ........... 300°C
ELECTRICAL CHARACTERISTICS
(1/* = 5V; TA = 25''C, Test circuit unless noted)
|CM7211 CHARACTERISTICS (LCD)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT
Operating Supply Voltage Range VSUPP 3 5 6 V
Operating Current lop Test circuit, Display blank 10 50 psA
Oscillator Input Current IOSCI Pin 36 :2 $10
Segment Rise/Fatl Time tttrs G. = 200pF 0.5
Backplane Rise/Fall Time tnFa CL = 5000pF . 1.5 'ss
Oscillator Fraquency fosc Pin 36 Floating 16 kHz
Backplane Frequency tap Pin 36 Floating 125 Hz
ICM7212 CHARACTERISTICS (COMMON ANODE LED)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT
Operating Supply Voltage Range VsUPP 4 5 6 V
Operating Current lop Pin 5 (Brightness), 10 50 pA
Display Off Pin 27-34 - GROUND
Operating Current lop Pin 5 at V’, Display all 8's 200 mA
Segment Leakage Current |SLK Segment Off :001 tl pA
Segment On Current ISEG Segment On. Vo = +3V 5 8 mA
INPUT CHARACTERISTICS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT
Logical "I" input voltage VIH 3
. , . V
Logical "ty Input voltage VIL 1
Input leakage current IILK Pins 27-34 eo, :1 uA
Input capacitance Cm Pins 27-34 5 pF
BP/Brightness Input leakage IBPLK Measured at Pin 5 with Pin 36 at GND t.01 url MA
BP/Brightness Input capacitance cap. All Devices 200 pF
AC CHARACTERISTICS - MULTIPLEXED INPUT CONFIGURATION
Diglt Select Active Pulse Width tSA Refer to Timing Diagrams -1 us
Data Setup Time tog 500 ns
Data Hold Time tDH 200
Inter-Digit Select Time tos 2 us
AC CHARACTERISTICS - MICROPROCESSOR INTERFACE
Chip Select Active Pulse Width ICSA other chip select either held active, 200
or both driven together ns
Data Setup Time ms 100
Data Hold Time tDH 10 0
Inter-Chip Select Time tics 2 ps
Note l.. This limit refers to that of the package and will not be realized during normal operation.
Note 2: Due to the SCR structure inherent in the CMOS process, connecting any terminal to voltages greaterthan V' or less than GROUND may
cause destructive device latchup. For this reason, it is recommended that no inputs trom external sources not operatin on the
same ower supply be applied to the device before its supply is established, and that in multiple supply systems, the supp yto the
ICM7 11/ICM7212 be turned on first.
The electrical characteristics above are a reproduction of a portion of Intersil's copyrighted ( 1981 J data book. This information 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 excerpts from the original manufacturer's data sheet have been included in this data sheet solely for comparative
purposes.
2 mmxum
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