ISD1964SYI Nuvoton Technology Corporation of America, ISD1964SYI Datasheet - Page 20

• Manufacturer Part Number: ISD1964SYI
• Description: IC VOICE REC/PLAY 128SEC 28-SOIC
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of ISD1964SYI

• Interface: Pushbutton
• Duration: 42.4 - 128 Sec
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• For Use With: ISD-COB1964 - BOARD DEMO FOR ISD1964/32ISD-COB1916 - BOARD DEMO FOR ISD1916
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Filter Pass Band: -

• LED
• As FT
• After FT
• If FT
• During an operation, activating the FT
• If PlayE
• If PlayL
• If LED
• During the device is in operation, it is strongly recommended that the supply power cannot be
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
¯¯¯¯ turns on during recording. Also, LED
must 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.
the message repeatedly, with insignificant dead time between messages regardless of sampling
frequencies. This status will sustain unless power is turned off or PlayL
power down between the looping playback. However, if PlayE
then playback will stop.
interrupted. Otherwise, it may cause the device to become malfunctioning.
¯¯¯¯¯ is kept at Low during power turns on, the device plays message once, then powers down.
¯¯ is already enabled, activating either PlayE
¯¯¯¯ is connected to PlayE
¯¯¯¯¯ is held at Low during power turns on and constantly maintained at Low, the device will play
¯¯ is held Low, the Mic+ pin will be reconfigured as AnaIn input, and the AnaIn signal will be
¯¯ is enabled, If REC
2 7
2 8
2 9
3 0
3 1
LED Operation
Feed-Through mode Operation
Power-On Playback Operation
Automatic Single Message Playback
Power is interrupted Abruptly
¯¯¯¯ is triggered, then AnaIn signal will be recorded into memory while the
¯¯¯¯¯, once PlayE
¯¯ pin is not allowed.
¯¯¯¯¯ is triggered, the device plays message repeatedly without
¯¯¯¯ pulses Low at the end of message. The Low period
¯¯¯¯¯ or PlayL
20
¯¯¯¯¯ will first disable the FT path and then play the
¯¯¯¯¯ is triggered again during playback,
¯¯¯¯¯ somehow returns to High.
Publication Release Date: Jan 5, 2009
ISD1900
Revision 0.51