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ISD14B00 データシート(PDF) 10 Page - Nuvoton Technology Corporation

部品番号 ISD14B00
部品情報  SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE
Download  27 Pages
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メーカー  NUVOTON [Nuvoton Technology Corporation]
ホームページ  http://www.nuvoton.com
Logo NUVOTON - Nuvoton Technology Corporation

ISD14B00 データシート(HTML) 10 Page - Nuvoton Technology Corporation

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ISD14B00
Publication Release Date: Jan 19, 2009
- 10 -
Revision 0.30
S3
( E3 )
S2
( E2 )
S1
( E1 )
S0
( E0 )
Row #
I14B80
Duration [s]
0
0
0
0
0
0
0
0
0
1
32
4.0
0
0
1
0
64
8.0
0
0
1
1
96
12.0
0
1
0
0
128
16.0
0
1
0
1
160
20.0
0
1
1
0
192
24.0
0
1
1
1
224
28.0
1
0
0
0
256
32.0
1
0
0
1
288
36.0
1
0
1
0
320
40.0
1
0
1
1
352
44.0
1
1
0
0
384
48.0
1
1
0
1
416
52.0
1
1
1
0
464
56.0
1
1
1
1
480
60.0
Below is an example:
Given sampling rate set to 6.4 kHz, using the ISD14B20 to record four messages: three messages of
2.5 seconds and one message of 12.5 seconds, then the memory can be assigned as follows:
S3, S2, S1, S0
E3, E2, E1, E0
Message 1 (2.5 seconds)
0
0
0
0
0
0
0
1
Message 2 (2.5 seconds)
0
0
1
0
0
0
1
1
Message 3 (2.5 seconds)
0
1
0
0
0
1
0
1
Message 4 (12.5 seconds)
0
1
1
0
1
1
1
1
5.1.1.
Record (REC
¯¯¯¯) Operation
Low active input:
o
level-hold for level-trigger or
o
falling edge for edge-trigger with debounce required.
For 8kHz sampling frequency, if REC
¯¯¯¯ is held at Low for a period equal to 1 sec or more, then
level recording is activated.
However, if REC
¯¯¯¯ is pulsed Low for less than 1 sec, then edge-
trigger recording is initiated.
For 6.4kHz sampling frequency, if REC
¯¯¯¯ is held at Low for a period equal to 1.25 sec or more,
then level recording is activated.
However, if REC
¯¯¯¯ is pulsed Low for less than 1.25 sec, then
edge-trigger recording is initiated.
Recording begins from the start address to end address and LED
¯¯¯¯ is on.
Recording ceases whenever:
REC
¯¯¯¯ returns to High in level-hold mode or


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