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| ISD2560 Datasheet, PDF (32/42 Pages) Winbond – ISD2560 | |||
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ISD2560/75/90/120
MC68HC705K1A
OSC1
PB0
OSC2
PB1
PA0
RESET
PA1
IRQ
U1
PA2
PA3
PA4
VDD
PA5
VSS
PA6
PA7
S1
RECORD
VCC
S2
PLAY
S3
MSG#
R1
TBD
D1
RUN
ISD2560/75/90/120
1 A0
2 A1
3 A2
4 A3
5 A4
6 A5
7 A6
8 A7
9 A8
10 A9
VCCD 28
VCCA 16
VSSD 12
VSSA 13
SP+ 14
SP- 15
U2 AUXIN 11
ANAIN 20
23 CE
24 PD
27 P/R
25 OEM
22 OVF
26 XCLK
ANAOUT 21
MICREF 18
MIC 17
AGC 19
FIGURE 6: ISD2560/75/90/120 APPLICATION EXAMPLE â 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.
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