This is the datasheet of AT89C51SND1C. AT89C51SND1C is a single chip microcomputer with integrated MP3 decoder.
The document describes the AT8xC51SND1C family of chips, which are fully integrated stand-alone hardwired MPEG I/II-Layer 3 decoders featuring a C51 microcontroller core. The family includes three variants: the AT89C51SND1C with Flash memory and ISP capability, the AT83SND1C with ROM, and the AT80C51SND1C which is ROMless.
The chip provides features for human interface such as timers, a keyboard port, serial or parallel interfaces (USB, TWI, SPI, IDE), ADC input, I2S output, and external memory interfaces. It supports applications in MP3 players, PDAs, cameras, mobile phones, car audio, and home multimedia systems.
| Core Type | 8-bit MCU C51 Core Based (Fmax = 20 MHz) |
|---|---|
| Internal RAM | 2304 Bytes |
| Code Memory (AT89C51SND1C) | 64K Bytes Flash |
| Code Memory (AT83SND1C) | 64K Bytes ROM |
| ADC Channels | 2 Channels 10-bit ADC, 8 kHz (8-true bit) |
| Operating Voltage | 3V, +10% |
| Temperature Range | -40°C to +85°C |
Yes, the AT89C51SND1C allows ISP through an embedded 4K Bytes of Boot Flash memory.
The device typically operates at 25 mA under standard conditions.
Supported rates include 48, 44.1, 32, 24, 22.05, and 16 kHz.
The unit operates between -40°C and +85°C.