ISD1964SYI Datasheet, PDF (4/29 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE

ISD1900
• While in Address Mode, flexible message duration is defined by start address and end address.
• Utilize four start address pins (S0, S1, S2 & S3) and four end address pins (E0, E1, E2 & E3) to specify
the message duration.
• ¯R¯E¯C¯: Level-hold or Edge-trigger (toggle on-off) recording from start to end addresses.
• ¯P¯la¯y¯E¯: Edge-trigger playback from start to end address and stops at EOM marker, if EOM is prior to
end address. Toggle on-off.
• ¯P¯la¯y¯L¯: Level-hold playback from start to end address. Also, if constantly Low, device will loop
playback from start to end address.
2.2. DIRECT MODE
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• While Direct Mode is active, utilizing the configuration pins, FMC1, FMC2 & FMC3, to define up to eight
similar duration messages for random access.
• The control pins are: M¯¯1 ~ M¯¯8 (message activation) and ¯R¯/P (record or playback selection).
• The record or playback operation is pre-defined by the ¯R¯/P pin.
• Each message can be randomly accessed via its message control pin (M¯¯1 ~ M¯¯8) and the desired
operation is facilitated accordingly.
Publication Release Date: Jan 5, 2009
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Revision 0.51