PXA250 INTEL [Intel Corporation], PXA250 Datasheet - Page 15

• Manufacturer Part Number: PXA250
• Description: Intel-R PXA250 and PXA210 Applications Processors
• Manufacturer: INTEL [Intel Corporation]

Datasheet
Table 2.
Pin and Signal Descriptions for the PXA250 Applications Processor (Sheet 7 of 7)
TESTCLK
Power and Ground Pins
VCC
VSS
PLL_VCC
PLL_VSS
VCCQ
VSSQ
VCCN
VSSN
BATT_VCC
NOTE:
1. GPIO Reset Operation: Configured as GPIO inputs by default after any reset. The input buffers for these
pins are disabled to prevent current drain.
Name
Electrical, Mechanical, and Thermal Specification — PXA250 and PXA210
Type
SUP
SUP
SUP
SUP
SUP
SUP
SUP
SUP
SUP
IC
Test Clock. This pin should be used for test purposes only. An end user should
ground this pin.
Positive supply for the applications processor internal Logic. Connect this supply
to the low voltage (.85 - 1.3v) supply on the PCB.
Ground supply for the applications processor internal logic. Connect these pins to
the common ground plane on the PCB.
Positive supply for the PLLs and Oscillators. It is recommended that you connect
this pin to the common low voltage supply.
Ground signal for PLLs.
Positive supply for all CMOS I/O, except memory bus and PCMCIA pins. Connect
these pins to the common 3.3 volt supply on the PCB.
Ground supply for all CMOS I/O except memory bus and PCMCIA pins. Connect
these pins to the common ground plane on the PCB.
Positive supply for memory bus and PCMCIA pins. Connect these pins to the
common 3.3 volt supply on the PCB.
Ground supply for memory bus and PCMCIA pins. Connect these pins to the
common ground plane on the PCB.
Backup battery connection. Connect this pin to the backup battery supply. If a
backup battery is not required, then this pin may be connected to the common
3.3 volt supply on the PCB.
Description
15