Número de pieza
I18A04X
componentes Descripción
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Nuvoton Technology
I18A04X Hoja de datos - Nuvoton Technology
Nuvoton Technology
GENERAL DESCRIPTION
Nuvoton’s ISD18A04 ChipCorder® is a new device of 4 to 8 seconds with wide operating voltage ranging from 2.4V to 5.5V. It provides high-quality, single chip, single-message, record/playback solution with user-selectable duration. The CMOS devices include an on-chip oscillator (with external control), microphone amplifier, multilevel storage array and speaker amplifier. A minimum record/playback subsystem can be configured with a microphone, a speaker, several passive components, two push buttons, and a power source. Recordings are stored in on-chip nonvolatile memory cells, providing zero-power message storage. This unique, single-chip solution is made possible through Nuvoton’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.
FEATURES
• Single power supply : 2.4V to 5.5V
• Easy-to-use single-chip, single-message voice record/playback solution
• Active Low on all control inputs for operations
• High-quality, natural voice/audio reproduction
• Level-hold for recording operation
• Either edge-triggered or level-triggered for playback operation
• Optional beeping sound effects for recording operation
• User-selected variable sampling frequency and duration via external resistor
• Automatic power-down mode
o Enters into standby mode immediately after a record or playback cycle
o 1.0 µA standby current (typical)
• Zero-power message storage
o Eliminates battery backup circuits
• 100-year message retention (typical)
• 100,000 record cycles (typical)
• On-chip oscillator
• No algorithm development required
• Available in die form
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