ISD2532 View Datasheet(PDF) - Winbond

Part Name

Description

Manufacturer

ISD2532

SINGLE-CHIP, MULTIPLE-MESSAGES, VOICE RECORD/PLAYBACK DEVICE 32-, 40-, 48-, AND 64-SECOND DURATION

Winbond 

ISD2532/40/48/64

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

ISD2532/40/48/64

1 A0

2 A1

3 A2

4 A3

5 A4

6 A5

7 A6

9 A7

10 A8

VCCD 28

VCCA 16

VSSD 12

VSSA 13

SP+ 14

SP- 15

U2 AUX IN 11

ANA IN 20

23 CE

24 PD

27 P/R

25 OEM

22 OVF

26 XCLK

ANA OUT 21

MIC REF 18

MIC 17

AGC 19

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.

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