The ISD4004 ChipCorder® Products provide highquality, 3-volt, single-chip record/playback solutions for 8- to 16-minute messaging applications which are ideal for cellular phones and other portable products。 The CMOS-based devices include an on-chip oscillator, antialiasing filter, smoothing filter, AutoMute™ feature,audio amplifier, and high density,multilevel Flash storage array。 The ISD4004 series is designed to be used in a microprocessor- or microcontroller-based system。 Address and control are accomplished through a Serial Peripheral Interface (SPI) or Microwire Serial Interface to minimize pin count。
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