mcimx27- Freescale Semiconductor, Inc, mcimx27- Datasheet - Page 46

• Manufacturer Part Number: mcimx27-
• Description: Multimedia Applications Processor
• Manufacturer: Freescale Semiconductor, Inc

Signal Descriptions
3.5.1.2
Figure 2
The range of operating conditions appear in
and
46
1
1
PA1
Hysteresis mode is recommended for input with transition time greater than 25 ns.
Hysteresis mode is recommended for input with transition time greater than 25 ns.
PA1
ID
ID
Table 16
Output Pad Transition Times (Max High)
Output Pad Transition Times (High)
Output Pad Transition Times (Standard Drive)
Maximum Input Transition Times
depicts the load circuit for output pads.
Output Pad Transition Times (Max High)
Output Pad Transition Times (High)
Output Pad Transition Times (Normal)
Maximum Input Transition Times
AC Electrical Characteristics
for DDR I/O (unless otherwise noted).
Output (at pad)
Table 14. AC Electrical Characteristics of Slow General I/O Pads
Table 15. AC Electrical Characteristics of Fast General I/O Pads
Parameter
Parameter
Figure 3. Output Pad Transition Time Waveform
Preliminary—Subject to Change Without Notice
Figure 2. Load Circuit for Output Pad
i.MX27 and i.MX27L Data Sheet, Rev. 1.2
1
CL includes package, probe and jig capacitance
1
PA1
From Output
20%
Under Test
80%
Table 14
Figure 3
Symbol
Symbol
trm
tpr
tpr
tpr
trm
tpr
tpr
tpr
for slow general I/O,
Test Point
CL
depicts the output pad transition time waveform.
Test Condition
Test Condition
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
—
PA1
Table 15
1.15
1.25
1.95
1.45
Min
Min
0.9
1.7
2.3
1.7
3.4
2.6
2.6
5.1
—
80%
Typical
Typical
1.9
2.9
20%
1.2
2.4
1.6
3.1
2.4
4.7
—
—
Freescale Semiconductor
—
for fast general I/O,
N
0 V
VDD
Max
4.75
16.5
Max
3.2
4.8
8.4
8.5
2.0
4.0
2.7
5.3
4.0
8.0
25
25
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns