intersil ICM7211AM DATA SHEET

®

ICM7211AM

Data Sheet FN3158.7April 17, 2006

4-Digit, LCD Display Driver

The ICM7211AM device is a non-multiplexed four-digit
seven-segment CMOS LCD display decoder-driver.

This device is configured to drive conventional LCD displays
by providing a complete RC oscillator, divider chain,
backplane driver, and 28 segment outputs.

It also has a microprocessor compatible input configuration,
which provides data input latches and Digit Address latches
under control of high-speed Chip Select inputs. These devices
simplify the task of implementing a cost-effective
alphanumeric seven-segment display for microprocessor

Features

• Four Digit Non-Multiplexed 7 Segment LCD Display
Outputs with Backplane Driver

• Complete Onboard RC Oscillator to Generate Backplane
Frequency

• Backplane Input/Output Allows Simple Synchronization of
Slave-Devices to a Master

• Provides Data and Digit Address Latches Controlled by
Chip Select Inputs to Provide a Direct High Speed
Processor Interface

• Decodes Binary to Code B (0-9, Dash, E, H, L, P, Blank)

systems, without requiring extensive ROM or CPU time for
decoding and display updating.

• Pb-Free Plus Anneal Available (RoHS Compliant)

The ICM7211AM provides the “Code B” output code, i.e.,
0-9, dash, E, H, L, P, blank, but will correctly decode true
BCD to seven-segment decimal outputs.

Ordering Information

DISPLA Y

PART NUMBER PART MARKING

ICM7211AMlM44 ICM7211AMlM44 LCD Code B Microprocessor Direct Drive -40 to 85 44 Ld MQFP Q44.10x10
ICM7211AMlPL ICM7211AMlPL LCD Code B Microprocessor Direct Drive -40 to 85 40 Ld PDIP E40.6
ICM7211AMlPLZ

(Note)

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

*Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications.

ICM7211AMlPLZ LCD Code B Microprocessor Direct Drive -40 to 85 40 Ld PDIP*

TYPE

DISPLAY

DECODING

INPUT

INTERFACING

DISPLAY

DRIVE TYPE

TEMP.

RANGE ( ° C) PACKAGE

(Pb-free)

PKG.

DWG. #

E40.6

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or1-888-468-3774

| Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright Intersil Americas Inc. 2001, 2004-2006. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

Pinouts

ICM7211AM (PDIP)

TOP VIEW

ICM7211AMICM7211AM

ICM7211AM (MQFP)

TOP VIEW

1

V

DD

2

e1

3

g1

4

f1

5

BP

6

a2

7

b2

8

c2

9

d2

10

e2

11

g2

12

f2

13

a3

14

b3

15

c3

16

d3

17

e3

18

g3

19

f3

20

a4

40

d1

39

c1

38

b1

37

a1

OSC

36

V

35

SS

CHIP SELECT 2

34

CHIP SELECT 1

33

DIGIT ADRESS BIT 2

32

DIGIT ADRESS BIT 1

31

B3

30

B2

29

B1

28

B0

27

26

f4

25

g4

24

e4

23

d4

22

c4

21

b4

Functional Block Diagram

SEGMENT OUTPUTS

DATA
INPUTS

D4

BPf1g1e1V

44 43 42 41 40

a2

b2

c2

d2

e2

NC

g2

f2

a3

b3

c3

1

2

3

4

5

6

7

8

9

10

11

12 13 14 15 16 17

d3e3g3

ICM7211AM

SEGMENT OUTPUTS

D3

DD

NCd1c1b1a1

39 38 37 36 35 34

f3

a4

b4c4d4e4g4

NC

SEGMENT OUTPUTS

D2

OSC

33

32

31

30

29

28

27

26

25

24

23

2221201918

SEGMENT OUTPUTS

V

SS

CHIP SELECT 2

CHIP SELECT 1

DIGITAL ADDRESS BIT 2

DIGITAL ADDRESS BIT 2

NC

B3

B2

DATA
INPUTS

B1

B0

f4

D1

DATA

INPUTS

2-BIT

DIGIT

ADRESS

INPUT

CHIP

SELECT 1

CHIP

SELECT 2

OSCILLATOR

INPUT

4-BIT

LATCH

ENABLE

2-BIT

LATCH

ENABLE

7 WIDE DRIVER

7 WIDE LATCH EN

PROGRAMMABLE

4 TO 7 DECODER

2 TO 4

DECODER

ONE

SHOT

ENABLE

DIRECTOR

2

7 WIDE DRIVER

7 WIDE LATCH EN

PROGRAMMABLE

4 TO 7 DECODER

OSCILLATOR

19kHz

FREE-RUNNING

7 WIDE LATCH EN

PROGRAMMABLE

4 TO 7 DECODER

÷128

7 WIDE DRIVER

BLACKPLANE

DRIVER

ENABLE

7 WIDE DRIVER

7 WIDE LATCH EN

PROGRAMMABLE

4 TO 7 DECODER

BP INPUT/OUTPUT

FN3158.7

April 17, 2006

ICM7211AMICM7211AM

Absolute Maximum Ratings Thermal Information

Supply Voltage (VDD - VSS) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V

Input Voltage (Any Terminal) (Note 1) . . .V

- 0.3V to VDD, + 0.3V

SS

Operating Conditions

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

NOTES:

1. Due to the SCR structure inherent in the CMOS process, connecting any terminal to voltages greater than V
destructive device latchup. For this reason, it is recommended that no inputs from external sources not operating on the same power supply be
applied to the device before its supply is established, and that in multiple supply systems, the supply to the ICM7211AM be turned on first.

2. θ

is measured with the component mounted on an evaluation PC board in free air.

JA

Electrical Specifications

PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

CHARACTERISTICS V

Operating Supply Voltage Range (V
Operating Current, I
Oscillator Input Current, I
Segment Rise/Fall Time, t
Backplane Rise/Fall Time, t
Oscillator Frequency, f
Backplane Frequency, f

INPUT CHARACTERISTICS

Logical “1” Input Voltage, V
Logical “0” Input Voltage, V
Input Leakage Current, I
Input Capacitance, C
BP/Brightness Input Leakage, I
BP/Brightness Input Capacitance, C

AC CHARACTERISTICS

Chip Select Active Pulse Width, t

Data Setup Time, t
Data Hold Time, t

DH

Inter-Chip Select Time, t

= 5V ±10%, TA = 25°C, VSS = 0V Unless Otherwise Specified

DD

- VSS), V

DD

OSC

lN

BP

ILK

OSCI

, t

r

r

IH
IL

DD

f

, t

f

BPLK

BPI

WL

SUPPLY

Test circuit, Display blank - 10 50 µA
Pin 36 - ±2 ±10 µA
CL = 200pF - 0.5 - µs
CL = 5000pF - 1.5 - µs
Pin 36 Floating - 19 - kHz
Pin 36 Floating - 150 - Hz

Pins 27-34 - ±0.01 ±1 µA
Pins 27-34 - 5 - pF
Measured at Pin 5 with Pin 36 at V
All Devices - 200 - pF

Other Chip Select Either Held Active, or
Both Driven Together

DS

ICS

Thermal Resistance (Typical, Note 2)

θ

JA

(°C/W)

PDIP Package* . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

MQFP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150°C

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

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

*Pb-free PDIPs can be used for through hole wave solder process­ing only. They are not intended for use in Reflow solder processing
applications.

or less than VSS may cause

DD

356 V

4--V

--1V

SS

- ±0.01 ±1 µA

200 - - ns

100 - - ns

10 0 - ns

2--µs

3

FN3158.7

April 17, 2006