| PartNumber | AT89C51SND2C-7FTUL | AT89C51SND1C-ROTUL |
| Description | 8-bit Microcontrollers - MCU MP3 Decoder Flash +DAC100 - Ind | 8-bit Microcontrollers - MCU MP3 FLASH - VER. 3.3 V COM |
| Manufacturer | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | CTBGA-100 | TQFP-80 |
| Series | 89C | 89C |
| Core | 80C51 | 80C51 |
| Data Bus Width | 8 bit | 8 bit |
| Maximum Clock Frequency | 40 MHz | 40 MHz |
| Program Memory Size | 64 kB | 64 kB |
| Data RAM Size | 2.25 kB | 2.25 kB |
| ADC Resolution | No ADC | 10 bit |
| Number of I/Os | 32 I/O | 44 I/O |
| Operating Supply Voltage | 2.7 V to 3.6 V | 3 V |
| Minimum Operating Temperature | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C |
| Height | 0.85 mm | 1.45 mm |
| Length | 9 mm | 14.1 mm |
| Program Memory Type | Flash | Flash |
| Width | 9 mm | 14.1 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Interface Type | ATAPI, I2S, IDE, SPI, UART, USB | 2-Wire, I2S, IDE, SPI, UART |
| Number of Timers/Counters | 2 Timer | 2 Timer |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1300 | 450 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.3 V | 3.3 V |
| Supply Voltage Min | 2.7 V | 2.7 V |
| Number of ADC Channels | - | 2 |
| Unit Weight | - | 0.018117 oz |