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AHA3431A-050PQC

Description
SIMULTANEOUS COMPRESSOR/DECOMPRESSOR IC, 3.3V
File Size771KB,4 Pages
ManufacturerETC1
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AHA3431A-050PQC Overview

SIMULTANEOUS COMPRESSOR/DECOMPRESSOR IC, 3.3V

comtech
aha
corporation
PRODUCT BRIEF*
AHA3431 StarLite
SIMULTANEOUS
COMPRESSOR/DECOMPRESSOR IC, 3.3V
AHA3431 is a high speed lossless compression
coprocessor IC for the hardcopy systems on many
standard platforms. The AHA3431 is functionally
backward compatible to the AHA3411.
Simultaneous compression and decompression,
flexible interfaces and advanced banding support
make this a unique solution for high performance
Raster Image Processing (RIP) controller designs.
Advanced banding support handles blank,
uncompressed and compressed bands during
decompression mode. Scan line and record length
counters accommodate various print resolutions
and band buffer sizes.
Software simulation and an analysis of the
algorithm for printer and copier images of various
complexity are available for evaluation.
PA[3]
PA[2]
PA[1]
PA[0]
TEST0
VOACKN
VSS
VDD
COEORN
VOD[7]
VOD[6]
VOD[5]
VOD[4]
VOD[3]
VSS
VDD
VOD[2]
VOD[1]
VOD[0]
VOEORN
VOREQN
D[31]
VSS
VSS
VDD
VDD
D[30]
D[29]
D[28]
D[27]
D[26]
D[25]
FEATURES
PERFORMANCE:
• 66 MBytes/sec compression/decompression rates
• 264 MBytes/sec burst data rate over a 32-bit
data bus
• 66 MBytes/sec synchronous optional 8-bit video
in and video out ports
• Simultaneous compression and decompression at
full bandwidth
• Average 15 to 1 compression ratio for 1200 dpi
bitmap image data
• Advanced banding support
FLEXIBILITY:
VDD
PA[5]
VSS
PA[4]
COEOTN
VOEOTN
PROCMODE[1]
PROCMODE[0]
CSN
VDD
VSS
DIR
RSTN
PD[7]
PD[6]
PD[5]
VDD
VSS
PD[4]
PD[3]
PD[2]
PD[1]
PD[0]
VDD
VSS
RDYN
VIACKN
VID[7]
VID[6]
VID[5]
VDD
VSS
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128
AHA3431A-066 PQC
YYWW - COUNTRY OF ORIGIN
LLLLL
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VDD
VSS
D[24]
D[23]
D[22]
D[21]
D[20]
D[19]
D[18]
D[17]
D[16]
D[15]
VDD
VSS
VDD
VDD
VSS
CLOCK
VDD
VSS
VSS
TEST1
D[14]
D[13]
D[12]
VDD
VSS
D[11]
D[10]
D[9]
D[8]
D[7]
• Big Endian or Little Endian; 32 or 16-bit bus
width and data bit/byte reordering for duplex
printing support
• Programmable Record Length, Record Count and
Scan Length Registers may be prearmed
• Scan line length up to 2K bytes
• Interfaces directly with various Motorola 68xxx
and Cold FIRE and Intel i960 embedded processors
• Pass-through mode passes raw data through
compression and decompression engines
SYSTEM INTERFACE:
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• Single chip compression/decompression
solution–no external SRAM required
• Four internal 16 × 32-bit FIFOs
• Maskable interrupts
• Tristatable outputs to facilitate board level testing
OTHERS:
Low power modes
Optional counter checks errors in decompression
Software emulation program available
128 pin quad flat package
3.3V operation
RoHS compliant
NOTE: YYWW = DATE CODE, LLLLL = LOT NUMBER
VID[4]
VID[3]
VID[2]
VID[1]
VID[0]
INTRN
VSS
VDD
DRIVEN
SD
DOACKN
COACKN
DIACKN
CIACKN
VSS
VDD
DOREQN
COREQN
DIREQN
CIREQN
VIREQN
D[0]
VSS
VSS
VDD
VDD
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
APPLICATIONS
• Digital copiers
• Printer controllers
• Multifunction printers and copiers
comtech
aha
corporation
*Request the AHA3431 Product Specification (PS3431) for complete details.

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