ISD25120S Nuvoton Technology Corporation of America, ISD25120S Datasheet - Page 8

• Manufacturer Part Number: ISD25120S
• Description: IC VOICE REC/PLAY 120SEC 28-SOIC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: ISD2500r

Specifications of ISD25120S

• Interface: Button/MCU
• Filter Pass Band: 1.7kHz
• Duration: 120 Sec
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIN NAME
EOM
OVF
CE
PD
SOIC/
PDIP
22
23
24
25
PIN NO.
TSOP
1
2
3
4
Overflow : This signal pulses LOW at the end of memory array,
indicating the device has been filled and the message has
overflowed. The OVF output then follows the CE input until a
PD pulse has reset the device. This pin can be used to cascade
several ISD2500 devices together to increase record/playback
durations.
Chip Enable : The CE input pin is taken LOW to enable all
playback
playback/record pin (P/ R ) are latched by the falling edge of CE .
Operational Mode as described in the Operational Mode section.
Power Down : When neither record nor playback operation, the PD
pin should be pulled HIGH to place the part in standby mode (see
I
overflow condition, PD should be brought HIGH to reset the
address pointer back to the beginning of the memory array. The PD
pin has additional functionality in the M6 (Push-Button) Operation
Mode as described in the Operational Mode section.
End-Of-Message : A nonvolatile marker is automatically inserted at
the end of each recorded message. It remains there until the
message is recorded over. The EOM output pulses LOW for a
period of T
In addition, the ISD2500 series has an internal V
maintain message integrity should V
When the device is configured in Operational Mode M6 (Push-
Button Mode), this pin provides an active-HIGH signal, indicating
the device is currently recording or playing. This signal can
conveniently drive an LED for visual indicator of a record or
playback operation in process.
CE
EOM goes LOW and the device is fixed in Playback-only mode.
SB
specification). When overflow ( OVF ) pulses LOW for an
has additional functionality in the M6 (Push-Button)
EOM
and
at the end of each message.
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record
operations.
FUNCTION
ISD2560/75/90/120
CC
fall below 3.5V. In this case,
The
address
CC
detect circuit to
pins
and