 1 Features
- Fast digital programming capability
Programming rate can reach to 1Mbit / s, second only to the flash memory erase speed
External Flash memory size of up to 128Mbit, storage time up to 64 minutes
A free address allocation: When ISD3900 memory allocation for the good new storage address, the SPI interface back to Start address stored audio information is through high-quality digital compression technology to achieve simple instructions based on playing
Internal reference with the internal oscillation frequency: 2.048MHz from 10% deviation
Adjusted with external resistors internal oscillation frequency: when using external resistors 80ohm 5% frequency deviation 2.048MHz
Crystal resonator and supports the standard audio sampling frequency, 4.096 2.048 8.192,12.288 and 11.2896MHz
- Operating voltage :2.7-3 .6 V
2 ISD3900 is a new release of Nuvoton 2008 models
3 SPI protocol format
4 I2S protocol format
5 ISD3900 Application Circuit
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