MCIMX255AJM4A Freescale, MCIMX255AJM4A Datasheet - Page 39

• Manufacturer Part Number: MCIMX255AJM4A
• Manufacturer: Freescale

Specifications of MCIMX255AJM4A

• Lead Free Status / RoHS Status: Compliant

3. Maximum condition for tdit: bcs model, 1.3 V, I/O 3.6 V, and –40 °C.
4. Maximum condition for tpi and trfi: wcs model, 1.1 V, I/O 3.0 V and 105 °C. Minimum condition for tpi and trfi: bcs model, 1.3 V,
3.6.3.3
Table 27
Note:
1. Maximum condition for tpr, tpo, tpi, and tpv: wcs model, 1.1 V, I/O 1. V, and 105 °C. Minimum condition for tpr, tpo, and tpv: bcs
2. Minimum condition for tps: wcs model, 1.1 V, I/O 1.7 V, and 105 °C. tps is measured between VIL to VIH for rising edge and
3. Maximum condition for tdit: bcs model, 1.3 V, I/O 1.9 V, and –40 °C.
4. Maximum condition for tpi and trfi: wcs model, 1.1 V, I/O 1.7 V and 105 °C. Minimum condition for tpi and trfi: bcs model, 1.3 V,
Freescale Semiconductor
Output pad slew rate
Output pad dI/dt
Input pad transition times
Input pad propagation delay, 50%–50%
Input pad propagation delay, 40%–60%
Duty cycle
Clock frequency
Output pad transition times
Output pad propagation delay, 50%–50%
Output pad propagation delay, 40%–60%
Output enable to output valid delay,
50%–50%
Output enable to output valid delay,
40%–60%
I/O 3.6 V and –40 °C. Input transition time from pad is 5 ns (20%–80%).
model, 1.3 V, I/O 1.9 V and –40 °C. Input transition time from core is 1 ns (20%–80%).
between VIH to VIL for falling edge.
I/O 1.9 V and –40 °C. Input transition time from pad is 5 ns (20%–80%).
shows AC parameters for DDR2 I/O.
DDR_TYPE = 10 Max Setting I/O AC Parameters and Requirements
Parameter
i.MX25 Applications Processor for Automotive Products, Rev. 4
Table 27. AC Parameters for DDR2 I/O
Symbol
Fduty
tpo
tpo
tpv
tpv
tps
tdit
tpr
trfi
tpi
tpi
f
Condition
1.0 pF
1.0 pF
1.0 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
25 pF
50 pF
Load
—
—
0.53/0.52
1.01/0.98
0.93/1.25
1.26/1.54
1.01/1.17
1.27/1.53
1.30/1.19
1.62/1.54
1.39/1.27
1.64/1.55
0.86/0.98
0.07/0.08 0.10/0.12 0.17/0.20
0.83/0.99 1.23/1.49 1.79/2.04
1.65/1.81 2.05/2.31 2.60/2.84
Rise/Fall
0.46/054
Min.
40
65
70
—
0.80/0.72
1.49/1.34
1.56/1.70
2.07/2.19
1.60/1.75
2.00/2.14
2.17/1.81
2.56/2.29
2.13/1.86
2.62/2.23
0.72/0.81
1.35/1.5
Typ.
157
167
50
—
Rise/Fall
1.19/1.04
2.21/1.90
2.52/2.53
3.29/3.24
2.49/2.52
3.11/3.10
3.35/2.84
3.35/2.54
3.38/2.83
4.14/2.38
2.15/2.19
1.12/1.16
Max.
133
373
396
60
mA/ns
Units
MHz
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
%
Notes
—
—
1
1
1
1
1
2
3
4
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