ML2502 Ver la hoja de datos (PDF) - Oki Electric Industry

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ML2502

RECORD/PLAYBACK LSI with 128Kbit Analog Cell Storage Flash Memory

Oki Electric Industry 

OKI

2. Single-phrase Record/Playback Mode

ML2502

2.1 Recording Operation

(1) In this mode the REC1 has to be connected with the REC2 pin.

Keep on inputting “H” level to the REC1 and the REC2 pin to power up and start recording

from the top address of the memory. Recording goes on while the REC1 and the REC2 pin

being held at “H” level.

(2) The LSI automatically ends recording when the last address of the memory has been

reached.

(3) The LSI automatically shifts to low-power consumption mode after recording ends.

(4) To stop recording before reaching the last address, bring the REC1 and the REC2 pin down

to “L” level. The LSI automatically shifts to low-power consumption mode after recording

stops.

(5) During recording operation any signal input to other pins than the REC1 and the REC2 is

disregarded.

Note: Re-recording always causes to overwrite the existing recording data for a given phrase.

REC1

REC2

PLAY1

PLAY2

Start

MON

Status Power Down Powering Up

Invalid Input

Stop

Recording

Powering Down Power Down

Stopping Process

Figure 2.1 Timing Chart for Single-phrase Recording Operation

ML2502 Data Sheet (Revision 8.0)

8

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