PXA255 Processor — Electrical, Mechanical, and Thermal Specification
Figures
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Processor Block Diagram......................................................................................8
PXA255 processor ..............................................................................................19
Power-On Reset Timing......................................................................................31
Hardware Reset Timing ......................................................................................32
GPIO Reset Timing.............................................................................................33
Sleep Mode Timing .............................................................................................34
LCD AC Timing Definitions .................................................................................37
SSP AC Timing Definitions .................................................................................38
AC Test Load ......................................................................................................39
Tables
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Related Documentation.........................................................................................7
Processor Pin Types.............................................................................................9
Pin and Signal Descriptions for the PXA255 Processor........................................9
Pin Description Notes..........................................................................................18
PXA255 processor 256-Lead 17x17mm mBGA Pinout — Ballpad No. Order....20
θ
JA and Maximum Power Ratings........................................................................22
Absolute Maximum Ratings ................................................................................23
Power Consumption Specifications for PXA255 processor ................................24
Voltage, Temperature, and Frequency Electrical Specifications.........................25
10 Standard Input, Output, and I/O Pin DC Operating Conditions...........................26
11 Standard Input, Output, I/O Pin DC Operating Conditions for 2.5-V Memory .....27
12 Standard Input, Output, and I/O Pin AC Operating Conditions ...........................28
13 32.768-kHz Oscillator Specifications...................................................................28
14 3.6864-MHz Oscillator Specifications .................................................................29
15 Power-On Timing Specifications .........................................................................31
16 Hardware Reset Timing Specifications ...............................................................32
17 GPIO Reset Timing Specifications......................................................................33
18 Sleep Mode Timing Specifications ......................................................................34
19 SRAM / ROM / Flash / Synchronous Fast Flash AC Specifications....................35
20 Variable Latency I/O Interface AC Specifications ...............................................35
21 Card Interface (PCMCIA or Compact Flash) AC Specifications .........................36
22 Synchronous Memory Interface AC Specifications 1 ..........................................36
23 LCD AC Timing Specifications ............................................................................37
24 SSP AC Timing Specifications ............................................................................38
25 Boundary Scan Test Signal Timing.....................................................................38
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Data Sheet
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