ISD2500 ETC1 [List of Unclassifed Manufacturers], ISD2500 Datasheet - Page 27

• Manufacturer Part Number: ISD2500
• Description: Single-Chip Voice Record/Playback Devices 32-, 40-, 48-, 64-,60-,75,90-, and 120-Second Durations
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Product Data Sheets
TIMING DIAGRAMS
Push-Button Mode Record
Push-Button Mode Playback
NOTES:
MIC ANA IN
(Start/Pause)
(Stop/Reset)
(Start/Pause)
(Stop/Reset)
A0-A9
(Run)
A0-A9
EOM
OVF
SP+/–
(Run)
EOM
OVF
P/R
CE
PD
1. A9, A8, and A6 = 1 for push-button operation.
2. The first CE LOW pulse performs a Start function.
3. The part will begin to play or record after a power-up delay T
4. The part must have CE HIGH for a debounce period TDB before it will recognize another falling edge of
5. The second CE LOW pulse, and every even pulse thereafter, performs a Pause function.
6. Again, the part must have CE HIGH for a debounce period TDB before it will recognize another falling
7. The third CE LOW pulse, and every odd pulse thereafter, performs a Resume function.
8. At any time, a HIGH level on PD will stop the current function, reset the address counter, and power down
P/R
CE
PD
Notes:
CE and pause.
edge of CE, which would restart an operation. In addition, the part will not do an internal power down until
CE is HIGH for the TDB time.
the device.
Notes:
(1)
(1)
T
T
T
T
T
RUN
T
T
SET
PUD
T
RUN
SET
SET
PUD
SET
T
T
SET
SET
(2)
(2)
T
T
"Start"
CE
"Start"
CE
(3)
(3)
T
T
DB
DB
(4, 5)
(4, 5)
T
T
"Pause"
CE
"Pause"
CE
T
T
PAUSE
PAUSE
T
T
T
DB
T
DB
*
SET
SET
Advance information: ISD2532/40/48/64 devices.
PUD
(6, 7)
(6, 7)
T
T
"Start"
CE
"Start"
.
CE
T
T
PUD
PUD
T
T
DB
DB
(8)
(8)
"Stop"
"Stop"
T
T
PD
PD
T
T
T
SET
T
SET
SET
SET
ISD2500 Series
1–105
1