MCIMX255AJM4AR2 Freescale Semiconductor, MCIMX255AJM4AR2 Datasheet - Page 39

• Manufacturer Part Number: MCIMX255AJM4AR2
• Description: Processors - Application Specialized IMX25 1.2 AUTO
• Manufacturer: Freescale Semiconductor

Specifications of MCIMX255AJM4AR2

• Core: ARM926EJ-S
• Processor Series: MCIMX25
• Maximum Clock Frequency: 400 MHz
• Instruction / Data Cache Memory: 16 KB
• Data Ram Size: 128 KB
• Operating Supply Voltage: 1.15 V to 1.52 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: MAPBGA-400
• Interface Type: USB
• Memory Type: DDR2
• Minimum Operating Temperature: - 40 C

1
2
3
4
3.6.3.3
Table 29
Table 30
Freescale Semiconductor
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%
Duty cycle
Clock frequency
Output pad transition times
Output pad propagation delay
signals and crossing of output signals
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
model, 1.3 V, I/O 1.9 V and –40 °C. Input transition time from core is 1 ns (20%–80%).
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
between VIH to VIL for falling edge.
Maximum condition for tdit: bcs model, 1.3 V, I/O 1.9 V, and –40 °C.
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,
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.
shows AC parameters for DDR2 pbijtov18_33_ddr_clk I/O.
DDR_TYPE = 10 Max Setting I/O AC Parameters and Requirements
3
Parameter
Parameter
2
4
1
1
Table 30. AC Parameters for DDR2 pbijtov18_33_ddr_clk I/O
i.MX25 Applications Processor for Automotive Products, Rev. 9
1
, 50%–50% input
4
4
Table 29. AC Parameters for DDR2 I/O
1
1
1
1
Symbol
Symbol
Fduty
Fduty
tpo
tpo
tpv
tpv
tps
tdit
tpo
tpr
trfi
tpi
tpi
tpr
f
f
Condition
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
25 pF
50 pF
25 pF
50 pF
Load
Load
—
—
—
—
0.53/0.52
1.01/0.98
Rise/Fall
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
0.83/0.99
1.65/1.81
Rise/Fall
1.3/1.21
1.59/1.5
0.46/054
Min.
Min.
40
—
40
65
70
—
0.80/0.72
1.49/1.34
1.97/1.84
2.37/2.24
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
0.10/0.12
1.23/1.49
2.05/2.31
1.35/1.5
Typ.
Typ.
157
167
50
—
50
—
1.19/1.04
2.21/1.90
2.91/2.71
3.48/3.28
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
0.17/0.20
1.79/2.04
2.60/2.84
Rise/Fall
Max.
Max.
133
133
373
396
60
60
mA/ns
Units
Units
MHz
V/ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
39