MCIMX25 Motorola Semiconductor Products, MCIMX25 Datasheet - Page 38

• Manufacturer Part Number: MCIMX25
• Manufacturer: Motorola Semiconductor Products

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,
3.5.3.3
Table 25
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:
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,
38
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%
Output pad slew rate
Output pad dI/dt
Input pad transition times
Input pad propagation delay, 50%–50%
Input pad propagation delay, 40%–60%
I/O 3.6 V and –40 °C. Input transition time from pad is 5 ns (20%–80%).
bcs 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 Consumer and Industrial Products, Rev. 2
Table 25. 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
—
1.19/1.04
2.21/1.90
2.52/2.53
3.29/3.24
2.49/2.52
3.35/2.84
3.35/2.54
3.38/2.83
4.14/2.38
2.15/2.19
1.12/1.16
Rise/Fall
3.11/3.10
Max.
133
373
396
60
Freescale Semiconductor
mA/ns
Units
MHz
V/ns
ns
ns
ns
ns
ns
ns
ns
ns
%
Notes
—
—
1
1
1
1
1
2
3
4