參數(shù)資料
型號(hào): 03H4969
元件分類: 通信及網(wǎng)絡(luò)
英文描述: SPECIALTY TELECOM CIRCUIT, PQFP100
封裝: 14 X 20 MM, 2.70 MM HEIGHT, 0.65 MM PITCH, PLASTIC, FP-100
文件頁(yè)數(shù): 44/48頁(yè)
文件大小: 464K
代理商: 03H4969
Product Part Number: IBM22-ALDC1005S
ALDC1-5S
I B M Microelectronics
Document Number: DCALD5DSU-04
Data Compression
Chapter 1. Product Overview
ALDC stands for Adaptive, Lossless, Data
Compression.
The ALDC1-5S is a low cost, high speed data
compression product for use in data storage
and data transmission applications. Using the
ALDC compression algorithm, ALDC1-5S can
achieve an average compression ratio of
approximately 3:1. Many applications can use
the flexible ALDC1-5S hardware interface. Also,
ALDC1-5S's hardware interface allows growth
capability for the future.
1.1 Distinctive Features
ALDC1-5S has a single clock input.
ALDC1-5S interfaces with common TTL and
CMOS/TTL circuits.
ALDC1-5S requires no additional external
memory -- it is a single chip data com-
pression solution.
ALDC1-5S operates at sustained speeds up
to 5 MB/s. Compression and decom-
pression data rates are symmetrical.
ALDC1-5S comes in two package options.
ALDC1-5S compresses and decompresses
data blocks up to 65,535 bytes.
ALDC1-5S provides a simple, eight bit, pro-
grammable interface to the controlling
microprocessor.
The microprocessor interface supports both
polling-driven and interrupt-driven applica-
tions.
The original data interface is an eight bit,
asynchronous direct memory access inter-
face.
The compressed data interface is an eight
bit, asynchronous burst mode direct
memory access interface.
The compressed data interface contains a
configurable, sixteen-byte FIFO buffer.
1.2 Package
ALDC1-5S is designed in IBM CMOS 0.8 micron
triple-level metal gate array/standard cell tech-
nology. There are two package options:
The ALDC1-5S-L has a 14 mm x 14 mm x
1.4 mm body size. It is a 100-lead low quad
flat package with 0.5 mm lead spacing. It is
suitable for PCMCIA applications.
The ALDC1-5S-P has a 14 mm x 20 mm x
2.7 mm body size. It is a 100-lead plastic
flat package with 0.65 mm lead spacing.
Section Chapter 7 on page 7-1 gives the
detailed physical dimension information. Other
packaging options are available to suit applica-
tion and system requirements.
1.3 Part Number
Your IBM Marketing Representative will help
you obtain the ALDC1-5S. The IBM Original
Equipment Manufacturer (OEM) catalog number
for the low quad flat package is
IBM22-ALDC1005S-00. The IBM Original Equip-
ment Manufacturer (OEM) catalog number for
the plastic flat package is IBM22-ALDC1005S-01.
The ALDC1-5S-L IBM part number is 50G6935.
The ALDC1-5S-P IBM part number is 03H4969.
1.4 Quality
The ALDC1-5S Acceptable Quality Level (AQL)
is 50 PPM or less. Customers with different
requirements should contact your IBM Mar-
keting Representative.
Customers should return any module believed
to be defective. IBM will replace any module
confirmed defective by our manufacturing tests.
We encourage you to return defective modules.
The failure analysis results obtained from these
modules help us to improve the quality of our
products.
(C) IBM CORP. 1993, 1994. ALL RIGHTS RESERVED. USE IS FURTHER SUBJECT TO THE PROVISIONS ON THE BACK OF THE TITLE PAGE.
1-1
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