SM5906AF datasheet(1/30 Pages) NPC

部件名	SM5906AF

功能描述	Shock-proof Memory Controller for Video CD Players

PDF	30 Pages

Scroll/Zoom	100%

制造商	NPC [Nippon Precision Circuits Inc]

网页	http://www.npc.co.jp/en

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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

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