ISD1112SR Nuvoton Technology Corporation of America, ISD1112SR Datasheet - Page 9

• Manufacturer Part Number: ISD1112SR
• Description: IC VOICE REC/PLAY 12-SEC 28-SOIC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD1100r

Specifications of ISD1112SR

• Interface: Pushbutton
• Filter Pass Band: 2.2kHz
• Duration: 12 Sec
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Notes:
PIN NAME
[1]
[2]
[3]
REC
The REC signal is debounced for 50 ms on the rising edge to prevent a false retriggering from a push-
button switch.
During playback, if either PLAYE or PLAYL is held LOW during EOM or OVF, the device will still
enter into standby mode and the internal oscillator and timing generator will stop. However, the rising
edge of PLAYE and PLAYL are not debounced and any subsequent falling edge (particularly switch
bounce) present on the input pins will initiate another playback.
standby current consumption.
NC
REC , PLAYL and PLAYE have internal pull-ups to V
[1][3]
PIN NO.
11
27
Record: The REC input is an active-LOW signal. The device
records whenever REC is LOW. This signal must remain
LOW for the duration of the recording. A record cycle is
completed when REC is pulled HIGH or the memory space
is filled up.
cycle, the playback immediately ceases and recording begins.
An end-of-message (EOM) marker is internally recorded,
enabling
appropriately. The device automatically powers down into
standby mode when REC goes HIGH. This pin has an
internal pull-up resistor.
NC: No connect
REC takes precedence over either playback ( PLAYE or
PLAYL ) signal. If REC is pulled LOW during a playback
a
- 9 -
subsequent
CC
. Holding on these pins LOW wil increase
FUNCTION
Publication Release Date: April 21, 2005
playback
ISD1100 SERIES
cycle
to
terminate
Revision 1.1