This datasheet introduces the features of Cirrus Logic EP9312 chip
The EP9312 is a 200‑MHz ARM920T‑based system‑on‑chip processor with a rich peripheral set, targeting thin‑client computers, internet radios, POS terminals, industrial computers and other embedded applications. It integrates an ARM920T core, MaverickCrunch math engine, MaverickKey unique ID, Ethernet MAC, USB host, multiple UARTs, LCD, touchscreen and keypad interfaces.
The device is offered in a 352‑pin PBGA package with variants for commercial (0 °C to +70 °C) and industrial (‑40 °C to +85 °C) temperature ranges, and supports up to four banks of 32‑bit SDRAM, NOR flash, and a range of serial and audio interfaces.
| Maximum CPU clock | 200 MHz (184 MHz for industrial) |
|---|---|
| Instruction cache | 16 KB |
| Data cache | 16 KB |
| Ethernet MAC speed | 1/10/100 Mbps |
| UARTs | Three 16550‑compatible UARTs (two HDLC, one IrDA) |
| Package | 352‑pin PBGA |
| Operating voltage | Core 1.8 V, I/O 3.3 V |
| Power consumption | 100 mW to 750 mW (speed dependent) |
The EP9312 can run up to 200 MHz, or 184 MHz in industrial temperature conditions.
It includes a 1/10/100 Mbps Ethernet Media Access Controller.
The device is supplied in a 352‑pin PBGA package.