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參數(shù)資料
| 型號： | SM5901AF |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | compression and non compression type anti-shock memory controller with built-in 1M DRAM |
| 中文描述： | 壓縮和非壓縮型抗休克，內(nèi)置100萬DRAM內(nèi)存控制器 |
| 文件頁數(shù)： | 1/31頁 |
| 文件大小： | 154K |
| 代理商： | SM5901AF |
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NIPPON PRECISION CIRCUITS INC.
pemnr
SM5901AF
compression and non compression type anti-shock
memory controller with built-in 1M DRAM
Overview
- 2-channel processing
- Serial data input
2s complement, 16-bit/MSB first, rear-packed
format
- System clock input
384fs (16.9344 MHz)
- Anti-shock 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 0.70 s/Mbit
External memory can be connected
2
×
1M DRAM (256K
×
4 bits)
Internal and external 1M DRAMs
1
×
1M DRAM (256K
×
4 bits)
Only internal 1M DRAM
- Compression mode selectable
- Microcontroller interface
Serial command write and state read-out
Data residual quantity detector:
15-bit operation, 16-bit output
Digital attenuator
Full-bit setting
Soft attenuator function
Noiseless attenuation-level switching
(256- step switching in 23 ms max.)
Soft mute function
Mute ON in 23 ms max.
Direct return after soft mute release
Forced mute
- Extension I/O
Microcontroller interface for external control
using 5 extension I/O pins
- +2.7 to +3.3 V wide 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 SM5901 is a compression and non compres-
sion type anti-shock memory controller with built-in
1M DRAM LSI for compact disc players. The com-
pression level can be set in 4 levels, and external
1M DRAM can be connected to expand the memo-
ed functions are also incorporated. It operates from
a 2.7 to 3.3 V wide supply voltage range.
Features
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SM5902 | compression and non compression type shock-proof memory controller |
| SM5902AF | compression and non compression type shock-proof memory controller |
| SM5903BF | compression and non compression type shock-proof memory controller |
| SM5903CF | compression and non compression type anti-shock memory controller |
| SM5904BF | compression and non compression type shock-proof memory controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SM5902 | 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 |
| SM5902AF | 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 |
| SM5903BF | 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 |
| 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 |
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