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SM5906AF Folha de dados(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5906AF Folha de dados(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 30 page NIPPON PRECISION CIRCUITS INC. NIPPON PRECISION CIRCUITS-1 SM5906AF Shock-proof Memory Controller for Video CD Players Overview – 2-channel processing – Serial data input • 2s complement, 16-bit/MSB first • Right-justified format • Wide capture function (up to 4 × speed input rate) • Selectable 16/24/32-bit clock – System clock input • 384fs (16.9344 MHz) – Shock-proof memory controller • Selectable CD-DA/V-CD/SVC mode • 2 external DRAM configurations selectable 1 × 16M DRAM (4M × 4 bits, refresh cycle = 2048 cycle) 1 × 4M DRAM (1M × 4 bits) – Microcontroller interface • Serial command write and status read-out • Data residual detector: 11-bit operation, 16-bit output (Bits 13 to 15 bit are fixed LOW.) • Forced mute – Extension I/O Microcontroller interface for external control using 3 extension I/O pins – +2.7 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 µs or longer (65 system clock pulses) continuous LOW-level reset - 48-pin QFP package (0.5 mm pin pitch) Pinout (Top View) The SM5906AF is a shock-proof memory controller LSI for video CD players. The operating mode can be set to CD-DA mode, V-CD mode, or Super V-CD mode, and external memory can be selected from 2 options (4M, 16M). It operates from a 2.7 to 3.6 V supply voltage range. Features Ordering Information SM5906AF 48pin QFP 38 39 40 41 42 43 44 45 46 47 48 13 14 15 16 17 18 19 20 21 22 23 A9 A8 A7 A6 A5 A4 A0 A1 A2 A3 VSS4 YMLD YDMUTE ZSENSE NRESET YBLKCK YFLAG ZC2PO ZSRDATA ZSCK ZLRCK VDD2 24 VSS2 37 VDD4 SM5906AF JAPAN |
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