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ISD2532 Datasheet(PDF) 32 Page - Winbond

Part No. ISD2532
Description  SINGLE-CHIP, MULTIPLE-MESSAGES, VOICE RECORD/PLAYBACK DEVICE 32-, 40-, 48-, AND 64-SECOND DURATION
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Maker  WINBOND [Winbond]
Homepage  http://www.winbond.com
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 32 page
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ISD2532/40/48/64
S2
V
CC
U
1
PB0
PB1
PA0
PA1
OSC1
OSC2
RESET
IRQ
PA2
PA3
PA4
PA5
PA6
PA7
V
DD
V
SS
S1
26
U
2
V
CCD
V
CCA
V
SSD
V
SSA
SP+
SP-
MIC REF
MIC
AGC
AUX IN
ANA IN
ANA OUT
A0
A1
A2
A3
A4
A5
A6
A7
A8
CE
PD
P/R
OEM
OVF
XCLK
ISD2532/40/48/64
1
2
3
4
5
6
7
9
10
23
24
27
25
22
19
17
18
21
20
11
15
14
13
12
16
28
S3
RECORD
PLAY
MSG#
MC68HC705K1A
RUN
D
1
R
1
T
BD
FIGURE 6: ISD2532/40/48/64 APPLICATION EXAMPLE – MICROCONTROLLER/ISD2500
INTERFACE
In this simplified block diagram of a microcontroller application, the Push-Button Mode and message
cueing are used. The microcontroller is a 16-pin version with enough port pins for buttons, an LED,
and the ISD2500 series device. The software can be written to use three buttons: one each for play
and record, and one for message selection. Because the microcontroller is interpreting the buttons
and commanding the ISD2500 device, software can be written for any function desired in a particular
application.
Note: Winbond does not recommend connecting address lines directly to a microprocessor bus.
Address lines should be externally latched.
- 32 -




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