isd2560x Winbond Electronics Corp America, isd2560x Datasheet - Page 32

• Manufacturer Part Number: isd2560x
• Description: Single-chip, Multiple-messages, Voice Record/playback Device 60-, 75-, 90-, And 120-second Duration
• Manufacturer: Winbond Electronics Corp America

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.
FIGURE 6: ISD2560/75/90/120 APPLICATION EXAMPLE – MICROCONTROLLER/ISD2500
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P/R
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A0
A1
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A9
OEM
XCLK
CE
PD
ISD2560/75/90/120
ISD2560/75/90/120
U
2
ANA OUT
MIC REF
ANA IN
AUX IN
AGC
V
V
V
V
SP+
MIC
SP-
CCD
CCA
SSD
SSA
16
28
12
13
14
15
11
20
21
18
17
19