ICM7211ALM44 INTERSIL [Intersil Corporation], ICM7211ALM44 Datasheet

ICM7211ALM44

Manufacturer Part Number

ICM7211ALM44

Description

4-Digit, ICM7211 (LCD) and ICM7212 (LED) Display Drivers

Manufacturer

INTERSIL [Intersil Corporation]

Datasheet

1.ICM7211ALM44.pdf (12 pages)

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August 1997

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

http://www.intersil.com or 407-727-9207

Features ICM7211 (LCD)

• Four Digit Non-Multiplexed 7 Segment LCD Display

• Complete Onboard RC Oscillator to Generate Backplane

• Backplane Input/Output Allows Simple Synchronization

• ICM7211 Devices Provide Separate Digit Select Inputs to

• ICM7211M Devices Provide Data and Digit Address

• ICM7211 Decodes Binary to Hexadecimal; ICM7211A

• ICM7211A Available in Surface Mount Package

Features ICM7212AM (LED)

• 28 Current-Limited Segment Outputs Provide 4-Digit

• Brightness Input Allows Direct Control of LED

• ICM7212AM Device Provides Same Input Conﬁguration

Ordering Information

ICM7211lPL

ICM7211MlPL

ICM7211AlPL

ICM7211AMlPL

ICM7211AlM44

ICM7211AMlM44

ICM7212AMlPL

PART NUMBER

Outputs with Backplane Driver

Frequency

of Slave-Devices to a Master

Accept Multiplexed BCD Input (Pinout and Functionally

Compatible with Siliconix DF411)

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)

Non-Multiplexed Direct LED Drive at >5mA Per Segment

Segment Current with a Single Potentiometer or

Digitally as a Display Enable

and Output Decoding Options as the ICM7211AM

DISPLAY

TYPE

LCD

LED

Hexadecimal

Code B

DECODING

DISPLAY

Intersil Corporation 1999

Multiplexed

Microprocessor

Multiplexed

Microprocessor

Multiplexed

Microprocessor

INTERFACING

ICM7211, ICM7212

INPUT

9-6

Description

The ICM7211 (LCD) and ICM7212 (LED) devices constitute

a family of non-multiplexed four-digit seven-segment CMOS

display decoder-drivers.

The ICM7211 devices are conﬁgured to drive conventional

LCD displays by providing a complete RC oscillator, divider

chain, backplane driver, and 28 segment outputs.

The ICM7212 devices are conﬁgured to drive common-

anode LED displays, providing 28 current-controlled, low

leakage, open-drain N-Channel outputs. These devices

provide a brightness input, which may be used at normal

logic levels as a display enable, or with a potentiometer as a

continuous display brightness control.

These devices are available with multiplexed or microproces-

sor input conﬁgurations. The multiplexed versions provide four

data inputs and four Digit Select inputs. This conﬁguration is

suitable for interfacing with multiplexed BCD or binary output

devices, such as the ICM7217, ICM7226, and ICL7135. The

microprocessor versions provide 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 micro-

processor systems, without requiring extensive ROM or CPU

time for decoding and display updating.

The standard devices will provide two different decoder

conﬁgurations. The basic device will decode the four bit

binary inputs into a seven-segment alphanumeric hexadeci-

mal output. The “A” versions will provide the “Code B” output

code, i.e., 0-9, dash, E, H, L, P, blank. Either device will cor-

rectly decode true BCD to seven-segment decimal outputs.

Direct Drive

Common Anode

DISPLAY DRIVE

TYPE

ICM7212 (LED) Display Drivers

4-Digit, ICM7211 (LCD) and

RANGE (

-40 to 85

TEMP.

40 Ld PDIP

44 Ld MQFP

40 Ld PDIP

PACKAGE

File Number

E40.6

Q44.10x10

E40.6

PKG. NO.

3158.1

Related parts for ICM7211ALM44

ICM7211ALM44 Summary of contents

Page 1

... TYPE DECODING ICM7211lPL LCD Hexadecimal ICM7211MlPL LCD Hexadecimal ICM7211AlPL LCD Code B ICM7211AMlPL LCD Code B ICM7211AlM44 LCD Code B ICM7211AMlM44 LCD Code B ICM7212AMlPL LED Code B CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | http://www.intersil.com or 407-727-9207 Copyright ICM7211, ICM7212 ICM7212 (LED) Display Drivers ...

Page 2

Pinouts ICM7211, ICM7211A (PDIP) TOP VIEW ...

Page 3

Pinouts (Continued ...

Page 4

Functional Block Diagrams D4 SEGMENT OUTPUTS 7 WIDE DRIVER 7 WIDE LATCH EN PROGRAMMABLE DECODER DATA INPUTS DIGIT SELECT INPUTS OSCILLATOR INPUT ENABLE DIRECTOR D4 SEGMENT OUTPUTS 7 WIDE DRIVER 7 WIDE LATCH EN PROGRAMMABLE 4 TO ...

Page 5

Functional Block Diagrams D4 SEGMENT OUTPUTS 7 WIDE DRIVER 7 WIDE LATCH EN PROGRAMMABLE DECODER 4-BIT DATA LATCH INPUTS ENABLE 2-BIT DIGIT 2-BIT LATCH ADRESS DECODER INPUT ENABLE CHIP ONE SELECT 1 SHOT CHIP ...

Page 6

Absolute Maximum Ratings Supply Voltage ( 6. ...

Page 7

Input Deﬁnitions In this table, V and V DD speciﬁed under Operating Characteristics. For lowest power consumption, input signals should swing over the full supply. INPUT TERMINAL ...

Page 8

Typical Performance Curves 30 LCD DEVICES, TEST CIRCUIT DISPLAY BLANK, PIN 36 OPEN (V) SUPP FIGURE 3. ICM7211 OPERATING SUPPLY CURRENT AS A ...

Page 9

Description Of Operation LCD Devices The LCD devices in the family (ICM7211, ICM7211A, ICM7211M, ICM7211AM) provide outputs suitable for driving conventional four-digit, seven-segment LCD displays. These devices include 28 individual segment drivers, backplane driver, and a self-contained oscillator and divider ...

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ICM7211ALM44 INTERSIL [Intersil Corporation], ICM7211ALM44 Datasheet

ICM7211ALM44

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