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Intel |
Intel® PXA270 Processor
Electrical, Mechanical, and Thermal Specification
Data Sheet
■ High-performance processor:
— Intel XScale® microarchitecture with
Intel® Wireless MMX™ Technology
— 7 Stage pipeline
— 32 KB instruction cache
— 32 KB data cache
— 2 KB “mini” data cache
— Extensive data buffering
■ 256 Kbytes of internal SRAM for high
speed code or data storage preserved
during low-power states
■ High-speed baseband processor interface
(Mobile Scalable Link)
■ Rich serial peripheral set:
— AC’97 audio port
— I2S audio port
— USB Client controller
— USB Host controller
— USB On-The-Go controller
— Three high-speed UARTs (two with
hardware flow control)
— FIR and SIR infrared communications
port
■ Hardware debug features — IEEE JTAG
interface with boundary scan
■ Hardware performance-monitoring
features with on-chip trace buffer
■ Real-time clock
w ■ Operating-system timers
w ■ LCD Controller
w ■ Universal Subscriber Identity Module
.DataSheet4U.cominterface
■ Low power:
— Wireless Intel Speedstep® Technology
— Less than 500 mW typical internal
dissipation
— Supply voltage may be reduced to
0.85 V
— Four low-power modes
— Dynamic voltage and frequency
management
■ High-performance memory controller:
— Four banks of SDRAM: up to 104 MHz
@ 2.5V, 3.0V, and 3.3V I/O interface
— Six static chip selects
— Support for PCMCIA and Compact
Flash
— Companion chip interface
■ Flexible clocking:
— CPU clock from 104 to 624 MHz
— Flexible memory clock ratios
— Frequency changes
— Functional clock gating
■ Additional peripherals for system
connectivity:
— SD Card / MMC Controller (with SPI
mode support)
— Memory Stick card controller
— Three SSP controllers
— Two I2C controllers
— Four pulse-width modulators (PWMs)
— Keypad interface with both direct and
matrix keys support
— Most peripheral pins double as GPIOs
Order Number 280002-005
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Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined. Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. The PXA270
processor may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current
characterized errata are available on request.
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ii Electrical, Mechanical, and Thermal Specification
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