Product Lines
ISD2532 Series ChipCorder
The following products are EOL (End Of Life) and no longer supported by Winbond Electronics Corporation. Winbond makes every effort to inform all customers, distributors and agents about any change in status on product support, and strives to give 6 months’ notice of a planned product obsolescence in which time the customer can order lifetime buy quantities. In cases where an exact or functional replacement are available, we have listed the alternative below. In all cases, though, it is highly recommended to consult the product datasheet and/or contact your Winbond representative regarding these parts. Any product recommendations made for non-Winbond components are based on publicly available information only and are not guarantees of product performance or functional specifications.

Winbond’s ISD2500 ChipCorder® Series provide high-quality, single-chip, Record/Playback solutions for 32- to 64-second messaging applications. The CMOS devices include an on-chip oscillator, microphone preamplifier, automatic gain control, antialiasing filter, smoothing filter, speaker amplifier, and high density multi-level storage array. In addition, the ISD2500 is microcontroller compatible, allowing complex messaging and addressing to be achieved. Recordings are stored into on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through Winbond’s patented multilevel storage technology. Voice and audio signals are stored directly into memory in their natural form, providing high-quality, solid-state voice reproduction.
Related links
 

Block Diagram

Application Diagram

Product Selection Guide

Part
Duration
Density
Sample
Cut-off
Package
Demo
Number
 
(k cells)
Rate
Frequency*
 
Board
ISD2532
32 sec.
256
8.0
3.4
DIP, SOIC, Die
ISD-ES002
ISD2540
40 sec.
256
6.4
2.7
DIP, SOIC, Die
ISD-ES002
ISD2548
48 sec.
256
5.3
2.3
DIP, SOIC, Die
ISD-ES002
ISD2564
64 sec.
256
4.0
1.7
DIP, SOIC, Die
ISD-ES002
* Typical Filter Pass Band (KHz)

Application Notes:

AB5
ISD2500 Family Push-Button Operation— M6 Mode
This brief attempts to make the ISD2500 Push-Button operation easier to understand. It explains how the chip changes its operation for the Push-Button Operational Mode, including the pin name changes. It is three pages long, including a “state diagram.”
apbr05.pdf

AB9
Technical Considerations for the Conversion from an ISD1000A Application to an ISD2500 Application
This brief explains how to design a circuit with the ISD1000A now and upgrade it later to use the extended time of the ISD2500 series devices. Included is a table of pin comparisons which discusses the new “Overflow” indicator, pin 22. This brief also mentions the one new Operation Mode in the ISD2500 devices, the M6 Push-Button Mode, which is explained thoroughly in Application Brief 5.
apbr09.pdf

AB31
Programming the ISD2532/40/48/64 Products in the ISDSD101 Programmer

The ISD-SD101 Programmer Software Versions 5.00 and 5.01 do not provide options on the menu for the ISD2532/40/48/64 products. This Application Brief resolves this issue.
apbr31.pdf

APIN9
Circuit Examples for ISD1000A and ISD2500 Products

apin09.pdf