ISD1212P

Overview

The ISD1212P is a single-chip voice record/playback device from the ISD1200 series, manufactured by Winbond Technology. It provides a 12-second recording duration with a sampling frequency of 5.3 kHz and a filter passband of 2.2 kHz. The CMOS device integrates an on-chip oscillator, microphone preamplifier, automatic gain control, antialiasing filter, smoothing filter, and speaker amplifier. It utilizes patented Multi-Level Storage technology to store voice signals directly into nonvolatile memory cells, enabling zero-power message storage. The device operates on a single +5V supply and features a push-button interface for edge- or level-activated playback.

Feature Summary

• Single-chip solution integrating analog transceivers, decoders, and nonvolatile multilevel storage array
• Automatic power-down mode entering standby with typical current of 0.5 µA after operation
• Fully addressable architecture supporting multiple messages via eight address inputs
• Zero-power message retention eliminating the need for battery backup circuits

Applications

• Single-chip voice record/playback messaging systems
• Push-button controlled audio announcement modules
• Multiple message storage applications requiring addressable segments

Procurement Notes

Verify the manufacturer designation as Winbond Technology in official datasheets, as Nuvoton may distribute or rebrand this component. Confirm the specific package type (PDIP or SOIC) required for the application, as the ISD1212P is available in both formats. Ensure the design supports the commercial temperature range of 0°C to 70°C for packaged units.

Selection Notes

Select the ISD1212P when a 12-second recording duration is required, distinguishing it from the 10-second ISD1210 variant. Consider the 5.3 kHz sampling rate and 2.2 kHz passband for speech quality requirements. Evaluate the need for external clocking via the XCLK pin if higher timing precision than the internal oscillator's ±2.25% variation is necessary.

Part Context

The ISD1212P belongs to the ISD1200 series of ChipCorder devices, which also includes the ISD1210. These components share the same core architecture and pinout but differ in recording duration and sampling frequency. The series is designed for simple, low-component-count voice messaging applications using Winbond's proprietary nonvolatile memory technology.

Replacement Considerations

The ISD1210 serves as a functional alternative within the same series for applications requiring 10 seconds of recording time instead of 12. Both parts share identical pinouts and operational modes, allowing for potential interchangeability if duration constraints permit.