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32-bit RISC processor with 8kByte Cache, Write Buffer and MMU built around an ARM7TDMI core. The ARM720T macrocell is a 32-bit embedded RISC processor designed for devices using a platform operating system, such as Windows CE, Symbian OS and Linux. In addition to the CPU core, the ARM720T features an 8k Byte unified cache and MMU together with an AMBA-compliant AHB bus interface. It is delivered as a hard macrocell optimized to provide the best combination of performance, power and area characteristics. The ARM720T macrocell enables system designers to build open platform devices requiring small size, low power and high performance.

The ARM7 family also includes the, and processor cores, each of which has been developed to address different market requirements.


  • Personal audio (MP3, WMA, AAC players)
  • Entry level wireless handset
  • Pager
  • Ink-jet/bubble-jet printer
  • Digital still camera
  • PDA


  • 32/16-bit RISC architecture (ARMv4T)
  • 32-bit ARM instruction set for maximum performance and flexibility
  • 16-bit Thumb instruction set for increased code density
  • Unified 32-bit AHB bus interface carries both instructions and data
  • Power-efficient three-stage pipeline
  • 32-bit ALU
  • 8 KByte unified cache
  • Memory Management Unit (MMU)
  • Very small die size and low power consumption
  • Fully static operation
  • Coprocessor interface
  • Extensive debug facilities:
    • EmbeddedICE-RT real-time debug unit
    • JTAG interface unit
    • Interface for direct connection to Embedded Trace Macrocell (ETM)

Revision 4 of the ARM720T processor offers several new features:

  • Portable to process geometries down to 0.13 um
  • Operation at voltages down to 0.9V
  • AHB bus interface
  • Improved manufacturing test facilities
  • Enhanced real-time debug with EmbeddedICE-RT

Arm Ltd Web Site