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參數(shù)資料
| 型號： | SM5903BF |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | compression and non compression type shock-proof memory controller |
| 中文描述： | 壓縮和非壓縮式防震內(nèi)存控制器 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大?。?/td> | 246K |
| 代理商： | SM5903BF |
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NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS-1
SM5903BF
compression and non compression type
shock-proof memory controller
Overview
- 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-level compression mode selectable
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
×
16M DRAM (4M
×
4 bits, refresh cycle =
2048 cycle)
1
×
or 2
×
4M DRAM (1M
×
4 bits)
1
×
1M DRAM (256k
×
4 bits)
- Microcontroller interface
Serial command write and status read-out
Data residual detector:
15-bit operation, 16-bit output
Forced mute
- Extension I/O
Microcontroller interface for external control
using 5 extension I/O pins
- +2.4 to +3.6 V operating voltage range
- Schmitt inputs
All input pins (including I/O pins) except CLK
(system clock)
- Reset signal noise elimination
Approximately 3.8
μ
s or longer (65 system
clock pulses) continuous LOW-level reset
- 44-pin QFP package (0.8 mm pin pitch)
The SM5903BF is a compression and non com-
pression 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 (1M, 4M, 4M
×
2, 16M). It
operates from a 2.4 to 3.6 V supply voltage range.
Features
Ordering Information
SM5903BF
44pin QFP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SM5903CF | compression and non compression type anti-shock memory controller |
| SM5904BF | compression and non compression type shock-proof memory controller |
| SM5904CF | compression and non compression type |
| SM5905AF | compression and non compression type shock-proof memory controller |
| SM5906AF | Shock-proof Memory Controller for Video CD Players |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM5903BF_00 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:compression and non compression type shock-proof memory controller |
| SM5903CF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:compression and non compression type anti-shock memory controller |
| SM5904BF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:compression and non compression type shock-proof memory controller |
| SM5904CF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:compression and non compression type |
| SM5905AF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:compression and non compression type shock-proof memory controller |
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