ISD1212S

Overview

The ISD1212S is a single-chip voice record/playback device from the ISD1200 series, manufactured by Winbond. It provides 12 seconds of recording duration using Multi-Level Storage (MLS) technology. The device operates on a single +5V supply and includes an on-chip oscillator, microphone preamplifier, automatic gain control, and speaker amplifier. Key electrical parameters include a sampling frequency of 5.3 kHz, a filter passband of 2.2 kHz, and standby current of 0.5 µA. It supports edge- or level-activated playback via PLAYE/PLAYL pins and features fully addressable memory segments for multiple messages.

Feature Summary

• Single-chip solution with integrated nonvolatile memory for zero-power message storage
• Built-in microphone preamplifier with automatic gain control and speaker amplifier
• Push-button interface supporting both edge-activated and level-activated playback modes
• Fully addressable architecture allowing up to 80 distinct message segments

Applications

• Single-message voice prompts in consumer electronics
• Multiple-message systems requiring simple push-button control
• Industrial automation voice signaling devices
• Security alarm system announcements

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm package type availability as the ISD1200 series is offered in PDIP, SOIC, and die formats. Check operational temperature range compliance for commercial applications (0°C to 70°C). Ensure power supply stability within the specified +4.5V to +5.5V range for optimal performance.

Selection Notes

Select the ISD1212S when 12 seconds of recording time 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 external clocking needs if precise timing accuracy beyond the internal oscillator's ±2.25% variation is necessary for the application.

Part Context

The ISD1212S belongs to the ISD1200 series of ChipCorder devices, which utilize patented Multi-Level Storage technology. This series offers solid-state voice reproduction without synthetic effects. The family includes variants like ISD1210 for 10-second durations. These devices eliminate the need for external microcontrollers or development systems for basic operation.

Replacement Considerations

ISD1210: Offers identical functionality but with 10 seconds of recording duration instead of 12 seconds. Both share the same pinout and operational characteristics. Verify that the reduced duration meets the specific messaging requirements of the target application before substitution.