ISD1964SYI Datasheet, PDF (14/29 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE

ISD1900
6.1.2 Edge-triggered Playback (¯P¯la¯y¯E¯) Operation
22
• Low active input, edge-trigger, toggle on-off, debounce required.
• Playback begins from the start address to end address or EOM, whichever occurrs first.
• At the end of message, ¯L¯E¯D¯ pulses Low momentarily.
o Then device will automatically power down.
• During playback, a subsequent trigger terminates the playback operation. If EOM marker is not encountered,
then ¯L¯E¯D¯ will not pulses Low momentarily.
• This pin has an internal pull-up device.
• Once ¯P¯la¯y¯E¯ is active, input on ¯P¯la¯y¯L¯, ¯R¯E¯C¯, F¯¯T, Addr/¯D¯r¯c¯t , S0, S1, S2, S3, E0, E1, E2 or E3 is
banned.
Addr/Drct
<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-
Figure 6-4 Playback–Edge (¯P¯la¯y¯E¯) function
T_EOM
End of
Message
6.1.3 Level-triggered Playback (¯P¯la¯y¯L¯) Operation
23
• Low active input, Level-hold, debounce required.
• Once active, playback begins from the start address and stops whenever ¯P¯la¯y¯L¯ returns to High.
When an EOM is encountered, ¯L¯E¯D¯ pulses Low momentarily.
o Then device will automatically power down.
• This pin has an internal pull-up device.
• Once ¯P¯la¯y¯L¯ is active, input on ¯P¯la¯y¯E¯, ¯R¯E¯C¯, F¯¯T, Addr/¯D¯r¯c¯t , S0, S1, S2, S3, E0, E1, E2 or E3 is
prohibited.
Publication Release Date: Jan 5, 2009
14
Revision 0.51