The AT75C221 is a high-performance intelligent network appliance processor for professional network appliance applications such as the Ethernet IP phone. The processor is based on an ARM7TDMI microcontroller core running at 40 MHz with an OakDSPCore coprocessor running at 60 MHz and a dual Ethernet 10/100 Mbit/s MAC interface.
The document describes the Atmel AT75C221, a Smart Internet Appliance Processor (SIAP) designed for professional applications such as Ethernet IP phones. The device integrates an ARM7TDMI microcontroller core running at 40 MHz with an OakDSPCore coprocessor operating up to 60 MHz.
| ARM7TDMI Core Operation Frequency | 40 MHz |
|---|---|
| OakDSPCore Operation Frequency | 60 MHz |
| Integrated Fast RAM Size | 104K bytes |
| Ethernet Interface Speed | 10/100 Mbps |
| Boot ROM Size | 1K-Byte |
| Frame Buffer Size | 16-Kbyte |
| Operating Temperature Range | 0°C to + 70°C |
The device ships in a 208-lead PQFP package and a 256-ball BGA package.
The nominal operating voltage for VDDIO is 3.3V.