isd18b12 Winbond Electronics Corp America, isd18b12 Datasheet - Page 6

• Manufacturer Part Number: isd18b12
• Description: Single-chip, Single-message Voice Record/playback Device 6- To 12-seconds Duration
• Manufacturer: Winbond Electronics Corp America

5. FUNCTIONAL DESCRIPTION
For the following related operations
may not be in direct proportional scale.
5.1. Level-triggered Record (
•
•
•
Fig. 1: Record–Level (
5.2. Edge-triggered Record (
•
•
•
Fig. 2: Record–Edge (
(Optional)
RECL
LEDR
BEEP
LEDP
MicIn
Recording starts from beginning of the memory and
Recording ceases whenever
off.
Then device will automatically power down.
Recording starts from beginning of the memory and
Recording ceases whenever a subsequent trigger occurs at
and
Then device will automatically power down.
(Optional)
RECL
LEDR
BEEP
LEDP
MicIn
LEDR
T
r
T
r
is off.
T
Deb
T
T
Deb
D1
T
T
RECE
RECL
D1
B1
T
B1
T
Stop
f
) function till memory full
) function with on-off
RECE
RECL
, if
SE is not enabled, then no beep sound is heard. Also, the timing diagrams
RECL
) Operation :
)Operation :
T
T
Deb
B2
returns to High or when end of memory is reached and
T
P2
- 6 -
T
Memory Full
Deb
T
D1
LEDR
LEDR
Memory Full
T
B1
is on.
is on.
RECE
T
B2
or when end of memory is reached
T
B2
T
P2
T
P2
T
f
ISD18B12
LEDR
is