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SM5907AF - compression and non compression type shock-proof memory controller

Description

Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Pin name VDD2 UC1 UC2 UC3 UC4 UC5 NCAS3 NTEST CLK VSS YSRDATA YLRCK YSCK ZSCK ZLRCK ZSRDATA YFLAG YFCLK YBLKCK NRESET ZSENSE VDD1 I/O Ip/O Ip/O Ip/O Ip/O Ip/O O Ip I I I I O O O I I I I O I I Function H VDD supply pin

Features

  • - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, right-justified format ⋅ Wide capture function (up to 3 × speed input rate) - System clock input ⋅ 384fs (16.9344 MHz) - Shock-proof memory controller ⋅ ADPCM compression method 4-bit compression mode 2.78 s/Mbit 5-bit compression mode 2.22 s/Mbit 6-bit compression mode 1.85 s/Mbit Full-bit non compression mode 0.74 s/Mbit ⋅ 4 external DRAM configurations selectable 1 or 2 × 16M DRAM (4M × 4 bits, refresh cycle = 204.

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Datasheet Details

Part number SM5907AF
Manufacturer Nippon Precision Circuits Inc
File Size 231.00 KB
Description compression and non compression type shock-proof memory controller
Datasheet download datasheet SM5907AF Datasheet

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Full PDF Text Transcription

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SM5907AF NIPPON PRECISION CIRCUITS INC. compression and non compression type shock-proof memory controller Overview The SM5907AF is a compression and non compression type shock-proof memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external memory can be selected from 4 options (4M, 4M× 2, 16M, 16M× 2). It operates from a 2.4 to 3.6 V supply voltage range. Features - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, right-justified format ⋅ Wide capture function (up to 3 × speed input rate) - System clock input ⋅ 384fs (16.9344 MHz) - Shock-proof memory controller ⋅ ADPCM compression method 4-bit compression mode 2.78 s/Mbit 5-bit compression mode 2.22 s/Mbit 6-bit compression mode 1.
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