ISD14B20 WINBOND [Winbond], ISD14B20 Datasheet - Page 15

• Manufacturer Part Number: ISD14B20
• Description: SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 10.6- TO 32-SECONDS DURATION
• Manufacturer: WINBOND [Winbond]

• When R
• If the ground side of R
• The operation will resume when the resistor is connected back to ground.
5.3.2.
•
5.3.3. Feed-Through mode Operation
• As
• After
• If
• During an operation, activating the
5.3.4. Power-On Playback Operation
• If
• If
5.3.5. Automatic Single Message Playback
• If
5.3.6. Power is interrupted Abruptly
• During the device is in operation, it is strongly recommended that the supply power cannot be
faster or slower.
be sufficiently greater than debounce time.
transmitted to the speaker outputs. Under this mode, Mic- pin is not used (must be floated).
Feed-Through path remains on.
recorded message. Once playback completes, FT path will be resumed.
message repeatedly, with insignificant dead time between messages regardless of sampling
frequencies. This status will sustain unless power is turned off or
without power down between the looping playback. However, if
playback, then playback will stop.
interrupted. Otherwise, it may cause the device to become malfunctioning.
LED
FT
PlayE
PlayL
LED
FT
LED
turns on during recording. Also,
FT
is already enabled, activating either
is connected to
OSC
is held Low, the Mic+ pin will be reconfigured as AnaIn input then the AnaIn signal will be
is kept at Low during power turns on, the device plays message once, then powers down.
is held at Low during power turns on and constantly maintained at Low, the device will play the
Operation
is enabled, If
resistor value is changed during playback, the tone of a recorded message will alter either
OSC
REC
PlayE
resistor is floated or tied to V
is triggered, then AnaIn signal will be recorded into memory while the
, once
FT
LED
PlayE
pin is not allowed.
PlayE
pulses Low at the end of message. The Low period must
is triggered, then the device plays message repeatedly
- 15 -
or
CC
PlayL
, then the current operation will be freezed.
Publication Release Date: October 9, 2007
will first disable the FT path then play the
PlayL
PlayE
somehow returns to High.
is triggered again during
ISD14B20
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