FEDL2502-03
OKI Semiconductor
ML2502
Phrase 1 Play Operation
(1) To power up the LSI and start playing from the top address of the memory, input a “H” pulse to the PLAY1
pin.
(2) The LSI automatically stops playing when the last address of the recorded phrase has been reached.
(3) When playing is complete, the LSI automatically powers down, entering a low-power-consumption state.
(4) To stop playing Phrase 1 half way, input a “H” pulse to the PLAY1 or PLAY2 pin again. When playing is
complete, the LSI automatically powers down, entering a low-power-consumption state.
(5) During playback operation (after a “H” pulse input to start playing), the valid input signal is one to the
PLAY1 or PLAY2 pin only and input signals to other pins are disregarded.
Stop pulse
(Only to stop playing half way)
Start pulse
PLAY1
PLAY2
MON
Power Down
Powering UP
Playing
Power Down
Shifting to Power-down
Figure 5 Phrase 1 Play Operation Timing Chart
Note: If you input a Start-Play pulse during the period when the LSI transits to power-down after stopping
playback, such Start-Play pulse is disregarded.
Start pulse (Invalid)
Start pulse
PLAY1
PLAY2
MON
Power Down
Powering UP
Playing
Power Down
Shifting to Power-down
Figure 6 Phrase 1 Play Operation Timing Chart
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OKI [ OKI ELECTRONIC COMPONETS ]
