MCIMX27 Motorola Semiconductor Products, MCIMX27 Datasheet - Page 47

• Manufacturer Part Number: MCIMX27
• Manufacturer: Motorola Semiconductor Products

3.5.1.2
Figure 2
The range of operating conditions appear in
and
Freescale Semiconductor
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 15
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
Output (at pad)
AC Electrical Characteristics
for DDR I/O (unless otherwise noted).
Table 13. AC Electrical Characteristics of Slow General I/O Pads
Table 14. AC Electrical Characteristics of Fast General I/O Pads
Parameter
Parameter
Figure 3. Output Pad Transition Time Waveform
i.MX27 Data Sheet, Advance Information, Rev. 0.1
Preliminary—Subject to Change Without Notice
Figure 2. Load Circuit for Output Pad
PA1
CL includes package, probe and jig capacitance
1
1
20%
80%
From Output
Under Test
Table 13
Figure 3
Symbol
Symbol
trm
tpr
tpr
tpr
trm
tpr
tpr
tpr
for slow general I/O,
Test Point
depicts the output pad transition time waveform.
CL
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 14
1.15
Min
1.25
1.95
1.45
Min
0.9
1.7
2.3
1.7
3.4
2.6
2.6
5.1
—
80%
20%
Typ
N
Typ
0 V
1.9
2.9
1.2
2.4
1.6
3.1
2.4
4.7
—
—
—
for fast general I/O,
VDD
Signal Descriptions
Max
4.75
16.5
Max
3.2
4.8
8.4
8.5
25
2.0
4.0
2.7
5.3
4.0
8.0
25
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
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