MSM9888L 查看數據表（PDF） - Oki Electric Industry

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MSM9888L

Flash-driving Recording and Playback IC

Oki Electric Industry 

¡ Semiconductor

MSM9888L

PIN DESCRIPTION

Pin Symbol

14

DI

13

DO

12

SCK

9

CS

20

15

23

22

24

25

26

27

10

11

16

1

28

29

4

2

3

5

6

17-19

8

21

7

30

BUSY

MON

FDI

FDO

FSCK

FCS

FPRT

FRESET

XT

XT

RESET

SG

LIN

LOUT

ADIN

AMON

FIN

FOUT

AOUT

TEST0-2

DVDD

DGND

AVDD

AGND

I/O

Description

I Inputs the 8-bit command data.

O Outputs the 8-bit status data.

I Inputs the data transfer clock for the DI and DO pins.

Accepts the SCK pulse, when CS is "L" level. Does not accept the SCL pulse

I

when CS is "H" level.

Indicates "H" level during command execution. When driven high, do not input a

O

command from the external micro-controller.

O Outputs "H" level during recording or playback.

O 1s connected to the DI pin of the serial voice flash memory.

I 1s connected to the DO pin of the serial voice flash memory.

O 1s connected to the SCK pin of the serial voice flash memory.

O 1s connected to the CS pin of the serial voice flash memory.

O 1s connected to the PRT pin of the serial voice flash memory.

O 1s connected to the RESET pin of the serial voice flash memory.

I Oscillator connecting pins. When using an external clock, input the clock from

O the XT pin and keep the XT pin open.

The LSI is reset and starts oscillation when "L" level is input, keep "L" level during

I

oscillation stabilization time. Set to "H" level after oscillation stabilizes.

O Analog reference voltage (Signal Ground) output pin

Built-in OP amplifier's invention input pin. The non-invention input pin is

I

internally connected to SG.

O Built-in OP amplifier's output pin

I Built-in 12-bit AD converter's input signal

Connected to the LOUT pin when recording mode, and to the DA converter's

O

output pin when playback mode. Connected to the built-in LPF's input (FIN pin).

I Built-in LPF's input pin

O Built-in LPF's output pin. Connected to the AD converter's input (ADIN pin).

Built-in LPF's output pin. This is the output pin the played back waveform and

O

connected to the speaker driving amplifier.

I LSI testing pins. Fix to "L".

Digital power supply pin. Insert a bypass capacitor of 0.1mF or higher between

—

this pin and DGND pin.

— Digital DGND pin

Analog power supply pin. Insert a bypass capacitor of 0.1mF or higher between

—

this pin and AGND pin.

— Analog GND pin

3/14

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