High-Performance, Low-Power, System-on-Chip with SDRAM & Digital Audio

The EP7311 is designed for ultra-low power applications such as industrial hand-held information appliances, medical equipment, and general purpose low power applications. The core-logic functionality of the device is built around an ARM720T processor running at clock speeds up to 74 and 90 MHz with 8 KB of four-way, set-associative, unified cache and a write buffer. Incorporated into the ARM720T is an enhanced memory management unit (MMU) which allows for support of sophisticated operating systems like Microsoft Windows CE and Linux.

The EP7311 is designed for low-power operation. Its core operates at only 2.5V, while its I/O has an operation range of 2.5 to 3.3V. The device has three basic power states: operating, idle, and standby.

Simply by adding the desired memory and peripherals to the highly integrated EP7311 completes a low-power system solution. All necessary interface logic is integrated on-chip. Available in commercial and industrial temperatures.

• ARM7TDMI processor and MMU with 64-entry TLB
  • 8 KB of four-way set-associative cache + 48 KB SRAM
  • Thumb code support enabled
• 32-bit unique MaverickKey ID for SDMI compliance
• Dynamic clock speeds of 74 and 90 MHz
• LCD controller, interrupt controller, and boot ROM
• IrDA, PWW (2), and 16550 UART (2) interfaces
• Real-time clock and two general purpose 16-bit timers
• Integrated peripheral interfaces
  • 32-bit SDRAM Interface up to 2 external banks
  • 8/32/16-bit SRAM/FLASH/ROM
  • Multimedia CODEC port and sound interface
  • Two synchronous serial interfaces (SSI1, SSI2)
  • 8x8 keypad scanner & dedicated LED flasher (via RTC)
  • 27 general purpose input/output pins
• Full JTAG boundary scan and Embedded ICE, support
• Ultra-low power:
  • 90 mW at 74 MHz typical; 30 mW at 18 MHz typical
  • 10 mW in the Idle State; <1 mW in the Standby state
• Package: 208-pin LQFP, 256-ball PBGA, or 204-ball TFBGA