7228AIBIZ 查看數據表（PDF） - Intersil

零件编号

产品描述 (功能)

生产厂家

7228AIBIZ

8-Digit, Microprocessor-Compatible, LED Display Decoder Driver

Intersil 

®

Data Sheet

December 6, 2005

ICM7228

FN3160.8

8-Digit, Microprocessor-Compatible, LED

Display Decoder Driver

The Intersil ICM7228 display driver interfaces

microprocessors to an 8-digit, 7-segment, numeric LED

display. Included on chip are two types of 7-segment

decoder, multiplex scan circuitry, LED display segment

drivers, LED display digit drivers and an 8-byte static

memory as display RAM.

Data can be written to the ICM7228A and ICM7228B’s display

RAM in sequential 8-digit update or in single-digit update

format. Data is written to the ICM7228C display RAM in parallel

random access format. The ICM7228A and ICM7228C drive

common anode displays. The ICM7228B drives common

cathode displays. All versions can display the RAM data as

either Hexadecimal or Code B format. The ICM7228A and

ICM7228B incorporate a No Decode mode allowing each bit of

each digit's RAM word to drive individual display segments

resulting in independent control of all display segments. As a

result, bargraph and other irregular display segments and

formats can be driven directly by this chip.

The Intersil ICM7228 is an alternative to both the Maxim

ICM7218 and the Intersil ICM7218 display drivers. Notice that

the ICM7228A/B has an additional single digit access mode.

This could make the Intersil ICM7218A/B software incompatible

with ICM7228A/B operation.

Features

• Pb-Free Plus Anneal Available (RoHS Compliant)

• Improved 2nd Source to Maxim ICM7218

• Fast Write Access Time of 200ns

• Multiple Microprocessor Compatible Versions

• Hexadecimal, Code B and No Decode Modes

• Individual Segment Control with “No Decode” Feature

• Digit and Segment Drivers On-Chip

• Non-Overlapping Digits Drive

• Common Anode and Common Cathode LED Versions

• Low Power CMOS Architecture

• Single 5V Supply

Applications

• Instrumentation

• Test Equipment

• Hand Held Instruments

• Bargraph Displays

• Numeric and Non-Numeric Panel Displays

• High and Low Temperature Environments where LCD

Display Integrity is Compromised

Ordering Information

PART NUMBER

PART MARKING

DATA ENTRY

PROTOCOL

TEMP. RANGE

DISPLAY TYPE

(oC)

PACKAGE

PKG. DWG. #

ICM7228AIBI

ICM7228AIBI

Sequential

Common Anode

-40 to 85 28 Ld SOIC

M28.3

ICM7228AIBIZ (Note) 7228AIBIZ

Sequential

Common Anode

-40 to 85 28 Ld SOIC (Pb-free) M28.3

ICM7228AIPI

ICM7228AIPI

Sequential

Common Anode

-40 to 85 28 Ld PDIP

E28.6

ICM7228AIPIZ (Note) ICM7228AIPI

Sequential

Common Anode

-40 to 85 28 Ld PDIP* (Pb-free) E28.6

ICM7228BIBI

ICM7228BIBI

Sequential

Common Cathode

-40 to 85 28 Ld SOlC

M28.3

ICM7228BIBIZ (Note) ICM7228BIBIZ Sequential

Common Cathode

-40 to 85 28 Ld SOlC (Pb-free) M28.3

ICM7228BIPI

ICM7228BIPI

Sequential

Common Cathode

-40 to 85 28 Ld PDIP

E28.6

ICM7228BIPIZ (Note) ICM7228BIPIZ Sequential

Common Cathode

-40 to 85 28 Ld PDIP (Pb-free) E28.6

ICM7228CIBI

ICM7228CIBI

Random

Common Anode

-40 to 85 28 Ld SOlC

M28.3

ICM7228CIBIZ (Note) ICM7228CIBIZ Random

Common Anode

-40 to 85 28 Ld SOlC (Pb-free) M28.3

ICM7228CIPI

ICM7228CIPI

Random

Common Anode

-40 to 85 28 Ld PDIP

E28.6

ICM7228CIPIZ (Note) ICM7228CIPI

Random

Common Anode

-40 to 85 28 Ld PDIP (Pb-free) E28.6

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

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.

1

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

Copyright © Intersil Americas Inc. 2002-2005. All Rights Reserved

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

Share Link: