ISD1916 Datasheet, PDF (11/25 Pages) Winbond – SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 10.6- TO 32-SECONDS DURATION

ISD1916
6.1.2. Edge-triggered Playback ( PlayE ) Operation
• Low active input, edge-trigger, toggle on-off, debounce required.
• Playback begins from the start address to end address or EOM, whichever is occurred first.
• At the end of message, LED pulses Low momentarily.
• Then device will automatically power down.
• During playback, a subsequent trigger terminates the playback operation. If EOM marker is not encountered,
then LED will not pulses Low momentarily.
• This pin has an internal pull-up device.
• Once PlayE is active, input on PlayL , REC , FT , NORM / MODE , S0 , S1 , S2 , S3 , E0 , E1 , E2
or E3 is banned.
Fig. 4 : Playback–Edge ( PlayE ) function
Norm/Mode
<S3:S0>
<E3:E0>
T_ASet
PlayE
LED
T_Deb
T_AHold
Start
T_ASet
Stop
T_Deb
T_Settle2
T_AHold
Start
T_Deb
Sp+
Sp-
T_EOM
End of
Message
6.1.3. Level- triggered Playback ( PlayL )Operation
• Low active input, Level-hold, debounce required.
• Once active, playback begins from the start address and stops whenever PlayL returns to High. When
an EOM is encountered, LED pulses Low momentarily.
• Then device will automatically power down.
• This pin has an internal pull-up device.
• Once PlayL is active, input on PlayE , REC , FT , NORM / MODE , S0 , S1 , S2 , S3 , E0 , E1, E2
or E3 is prohibited.
Fig. 5: Playback–Level ( PlayL ) function
Publication Release Date: September 11, 2007
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Revision 0