PXA255 Processor — Electrical, Mechanical, and Thermal Specification
Data Sheet
3
Contents
1.0
About This Document
............................................................................................7
2.0
Functional Overview
..............................................................................................7
3.0
Package Information
..............................................................................................8
3.1
Package Introduction.....................................................................................8
3.1.1
Functional Signal Definitions............................................................8
3.1.1.1
PXA255 Processor Signal Pin Descriptions .....................8
3.2
Package Power Ratings..............................................................................22
4.0
Electrical Specifications
......................................................................................22
4.1
Absolute Maximum Ratings.........................................................................22
4.2
Power Consumption Specifications.............................................................23
4.3
Operating Conditions...................................................................................25
4.4
Targeted DC Specifications.........................................................................26
4.5
Targeted AC Specifications.........................................................................27
4.6
Oscillator Electrical Specifications...............................................................28
4.6.1
32.768-kHz Oscillator Specifications..............................................28
4.6.2
3.6864 MHz Oscillator Specifications.............................................29
4.7
Reset and Power AC Timing Specifications................................................30
4.7.1
Power-On Timing ...........................................................................30
4.7.2
Hardware Reset Timing..................................................................32
4.7.3
Watchdog Reset Timing.................................................................32
4.7.4
GPIO Reset Timing ........................................................................32
4.7.5
Sleep Mode Timing ........................................................................33
4.8
Memory Bus and PCMCIA AC Specifications.............................................35
4.9
Peripheral Module AC Specifications..........................................................37
4.9.1
LCD Module AC Timing..................................................................37
4.9.2
SSP Module AC Timing..................................................................37
4.9.3
Boundary Scan Test Signal Timings ..............................................38
4.10
AC Test Conditions .....................................................................................39