ISD1112SR

Overview

The ISD1112SR is a single-chip voice record and playback device from the Winbond ISD1100 series, offering a nominal recording duration of 12 seconds. It operates on a single 5V supply within a commercial temperature range of 0°C to 70°C. The device utilizes Multi-Level Storage (MLS) technology for non-volatile memory, retaining messages for up to 100 years with zero power consumption. Key electrical parameters include a sampling frequency of 5.3 kHz, a filter passband of 2.2 kHz, and a standby current of typically 0.5 µA. It features an integrated microphone preamplifier, automatic gain control, and a speaker amplifier capable of driving a 16 Ω load.

Feature Summary

• Integrated analog transceivers including microphone preamplifier, automatic gain control, anti-aliasing filter, smoothing filter, and speaker amplifier.

Applications

• Single-message or multi-message automated announcements
• Voice prompts in consumer electronics
• Security alarm systems

Procurement Notes

Verify that the component is sourced as a genuine Winbond product, as the datasheet identifies Winbond as the manufacturer. Confirm the package type matches the required PCB footprint, as the series is available in SOIC, PDIP, and die formats. Ensure the specific suffix corresponds to the desired packaging configuration.

Selection Notes

Select the ISD1112 variant when a 12-second recording duration is required, distinguishing it from the 10-second ISD1110 model. Consider the external clock pin if precise timing stability beyond the internal oscillator's ±2.25% variation is necessary for the application environment.

Part Context

This component belongs to the ISD1100 series of ChipCorder devices, which are designed for simple, low-cost voice messaging applications without the need for external microcontrollers or complex programming systems.

Replacement Considerations

ISD1110: Offers identical functionality but with a 10-second recording duration instead of 12 seconds.

FAQ

How does the device handle multiple messages?

The device supports fully addressable operations using pins A0 through A7. By setting specific address levels, users can initiate record or playback cycles at different memory locations, enabling multi-message applications.

What is the mechanism for automatic power management?

The device automatically enters a standby mode with typical standby current of 0.5 µA following the completion of a record or playback operation, eliminating the need for manual power-down controls.