Product News

EP7312

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


ProcessorSpeed (Mhz)CacheMMUDRAM CtrllrOn-chip SRAM (KSB)LCD CtrllrDAIEthernetTemperaturePackage
ARM720T 90 & 74 8 KB unified SDRAM 48 Commercial & Industrial 208 LQFP
256 PBGA
204 TFBGA
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The EP7312 is designed for ultra-low-power applications such as portable handheld devices that require digital audio decompression capability, Internet appliances and low-power industrial controls. The core-logic functionality of the device is built around an ARM720T processor running at clock speeds up to 90 MHz and 74 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 EP7312 is designed for ultra-low-power operation. Its core operates at only 2.5 V, while its input/output has an operational range of 2.5 V to 3.3 V. The device has three basic power states: operating, idle and standby.

The EP7312 integrates a digital audio interface to enable a direct connection to many low-cost, high-quality audio converters from Cirrus Logic.

Simply by adding the desired memory and peripherals to the highly integrated EP7312 completes a low-power system solution. All necessary interface logic is integrated on-chip.


  • ARM7TDMI processor and MMU supporting Thumb mode
    • 8 KB of four-way, set-associative cache
  • Supports MP3, WMA, AAC, ADPCM, Audible, etc.
  • 48 KB of on-chip SRAM
  • 32-bit unique MaverickKey™ ID for digital rights management or design IP security (special order feature)
  • Dynamic clock speeds of 90 MHz and 74 MHz
  • LCD controller, interrupt controller and boot ROM
  • IrDA, PWM (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
    • Glueless digital audio plus CODEC interface
    • Two synchronous serial interfaces (SSI1, SSI2)
    • 8x8 keypad scanner and dedicated LED flasher (via real-time clock)
    • 27 general-purpose I/O pins
  • Ultra-low power
    • 90 mW at 74 MHz
    • 108 mW at 90 MHz (typical)
    • <0.03 mW in the standby state
  • Package: 208-pin LQFP, 256-ball PBGA, 204-ball TFBGA
    • Available in commercial and industrial temperatures
    • Available in lead-free

EP7312

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

Overview

ProcessorSpeed (Mhz)CacheMMUDRAM CtrllrOn-chip SRAM (KSB)LCD CtrllrDAIEthernetTemperaturePackage
ARM720T 90 & 74 8 KB unified SDRAM 48 Commercial & Industrial 208 LQFP
256 PBGA
204 TFBGA

Description

The EP7312 is designed for ultra-low-power applications such as portable handheld devices that require digital audio decompression capability, Internet appliances and low-power industrial controls. The core-logic functionality of the device is built around an ARM720T processor running at clock speeds up to 90 MHz and 74 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 EP7312 is designed for ultra-low-power operation. Its core operates at only 2.5 V, while its input/output has an operational range of 2.5 V to 3.3 V. The device has three basic power states: operating, idle and standby.

The EP7312 integrates a digital audio interface to enable a direct connection to many low-cost, high-quality audio converters from Cirrus Logic.

Simply by adding the desired memory and peripherals to the highly integrated EP7312 completes a low-power system solution. All necessary interface logic is integrated on-chip.

Features

Diagram

EP7312 Product Diagram

Related Documents

 
 

Design Resources



Tools and Software


 

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