PXA250 INTEL [Intel Corporation], PXA250 Datasheet - Page 32

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

PXA250 and PXA210 — Electrical, Mechanical, and Thermal Specification
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Table 10. Standard Input, Output, and I/O Pin AC Operating Conditions
Targeted AC Specifications
All the non-analog input, output, and I/O pins on the applications processor can be divided into one
of two categories:
A pin’s AC Characteristics include input and output capacitance. These determine loading for
external drivers or other load analysis. The AC Characteristics also include a de-rating factor,
which indicates how much faster or slower the AC timings get with different loads. The AC
Operating Conditions for the high- and low-strength input, output, and I/O pins are shown in
Table 10, “Standard Input, Output, and I/O Pin AC Operating Conditions”. All AC specification
values are valid for entire temperature range of the device.
NOTE: AC Specifications guaranteed for loads in this range. All testing is done at 50pF
1. High Strength Input, Output, and I/O pins:
2. Low Strength Input, Output, and I/O pins - all remaining non-supply pins
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COUT_H
Symbol
tdF_H
tdR_H
nCS[5:1] (GP 33, 80, 79, 78, 15 respectively), nCS[0]
MD[31:0], MA[25:0]
DQM[3:0]
nOE, nWE, nSDRAS, nSDCAS, nSDCS[3:0]
SDCLK[2:0], SDCKE[1:0]
RDnWR, RDY (GP[18])
nPWE, nPOE pins (GP[49:48])
MMCLK (GP[53]), MMCMD, MMDAT
TDO
nACRESET
CIN
Input Capacitance, all standard input and
IO pins
Output Capacitance, all standard high-
strength output and IO pins
Output de-rating, falling edge on all
standard, high-strength output and I/O
pins, from 50pF load.
Output de-rating, rising edge on all
standard, high-strength output and I/O
pins, from 50pF load.
Description
Min
251
Typical
Max
501
10
Datasheet
Units
ns/pF
ns/pF
pF
pF