MCIMX508CZK8B Freescale Semiconductor, MCIMX508CZK8B Datasheet - Page 45
MCIMX508CZK8B
Manufacturer Part Number
MCIMX508CZK8B
Description
Processors - Application Specialized CODEX REV 1.1
Manufacturer
Freescale Semiconductor
Type
Multimedia Applicationsr
Datasheet
1.MCIMX503EVM8B.pdf
(135 pages)
Specifications of MCIMX508CZK8B
Core
ARM Cortex A8
Processor Series
i.MX50
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4.5.7
Table 32
Freescale Semiconductor
AC input logic high
AC input logic low
AC differential input voltage
AC Input differential cross point voltage
AC output differential cross point voltage
Output propagation delay high to low
Output propagation delay low to high
Input propagation delay high to low
Input propagation delay low to high
Single output slew rate
shows the AC parameters for DDR2 I/O.
DDR2 I/O AC Parameters
1
“true” input signal and Vcp is the “complementary” input signal. The Minimum value is equal to
Vih(ac)-Vil(ac)
2
variation of OVDD. Vix(ac) indicates the voltage at which differential input signal must cross.
3
variation in OVDD. Vox(ac) indicates the voltage at which differential output signal must cross.
Vid(ac) specifies the input differential voltage |Vtr-Vcp| required for switching, where Vtr is the
The typical value of Vix(ac) is expected to be about 0.5*OVDD. and Vix(ac) is expected to track
The typical value of Vox(ac) is expected to be about 0.5*OVDD and Vox(ac) is expected to track
Parameter
i.MX50 Applications Processors for Consumer Products, Rev. 4
1
Table 32. DDR2 I/O AC Parameters
2
3
Symbol
Vox(ac)
Vih(ac)
Vid(ac)
Vix(ac)
t
t
Vil(ac)
t
t
POHLD
POLHD
PIHLD
PILHD
tsr
Vref+0.25
0.5*ovdd
0.5*ovdd
-0.175
-0.125
Min
0.5
0.4
-
0.5*ovdd +
0.5*ovdd+
Vref-0.25
0.175
0.125
ovdd
Max
3.5
3.5
1.5
1.5
2
-
Electrical Characteristics
Unit
V/ns
ns
V
45
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