mcimx50 Freescale Semiconductor, Inc, mcimx50 Datasheet - Page 29

• Manufacturer Part Number: mcimx50
• Description: I.mx50 Applications Processors For Consumer Products
• Manufacturer: Freescale Semiconductor, Inc

4.3.2
The DDR2 interface fully complies with JESD79-2E DDR2 JEDEC standard release April, 2008. The
Jedec LPDDR2 specification (JESD209_2B) supersedes any specification in this document. The
parameters in
4.3.3
The LPDDR2 interface fully complies with JEDEC standard release April, 2008. The parameters in
Table 17
Freescale Semiconductor
High-level output voltage
Low-level output voltage
Input reference voltage
DC input high voltage
DC input low voltage
1
2
3
4
5
6
DC Electrical Characteristics
High-level output voltage
Low-level output voltage
Output min source current
Output min sink current
Input reference voltage
DC input high voltage (data
pins)
DC input low voltage (data
pins)
DC input voltage
DC differential input voltage
Termination voltage
Input current
pull-up/down)
Tri-state I/O supply current
Tri-state 2.5V predrivers supply
current
Tri-state core supply current
DC Electrical Characteristics
ovdd=1.7 V; Vout=1.42 V. (Vout-ovdd)/Ioh must be less than 21 Ω for values of Vout between ovdd and ovdd-0.28 V.
ovdd=1.7 V; Vout=280 mV. Vout/Iol must be less than 21 Ω for values of Vout between 0 V and 280 mV.
Vin(dc) specifies the allowable dc excursion of each differential input.
Vid(dc) specifies the input differential voltage |Vtr-Vcp| required for switching, where Vtr is the “pure” input level and Vcp is
the “complementary” input level. the minimum value is equal to Vih(dc) -Vil(dc).
Vtt is expected to track ovdd/2.
Typ condition: typ model, 1.8 V, and 25 °C. Max condition: BCS model, 1.9 V, and 125 °C. Min condition: WCS model, 1.7
V, and -40 °C.
6
are guaranteed per the operating ranges in
DDR2 I/O DC Parameters
Low Power DDR2 I/O DC Parameters
6
(no
Table 16
3
(clk pins)
5
2
1
are guaranteed per the operating ranges in
6
i.MX50 Applications Processors for Consumer Products, Rev. 0
4
6
Table 17. LPDDR2 I/O DC Electrical Parameters
Icc-vdd2p5
Table 16. DDR2 DC Electrical Characteristics
Icc-ovdd
Symbol
Vihd(dc)
Vild(dc)
Icc-vddi
Ioh(dc)
Vin(dc)
Vid(dc)
Iol(dc)
Vref
Symbol
Voh
Vol
Vih(dc)
Vtt
Vil(dc)
Iin
Vref
Voh
Vol
VI = ovdd or 0
VI = ovdd or 0
VI = ovdd or 0
Conditions
Test Conditions
VI=ovdd
VI = 0
Test
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Table
9, unless otherwise noted.
Vref+0.125
0.49*ovdd
Vref-0.04
0.9*ovdd
0.25
MIN
-7.5
-0.3
-0.3
7.5
—
—
—
—
—
0.49*ovdd
Vref+0.13
0.9*ovdd
ovss
MIN
—
Table
0.5*ovdd
9, unless otherwise noted.
TYP
0.07
Vref
2.3
6.4
3.1
—
—
—
—
—
—
—
—
2
0.5*ovdd
TYP
—
—
—
—
Electrical Characteristics
Vref-0.125
0.51*ovdd
Vref+0.04
ovdd+0.3
ovdd+0.3
ovdd+0.6
0.1*ovdd
MAX
360
480
750
720
—
—
—
0.51*ovdd
5
Vref-0.13
0.1*ovdd
ovdd
MAX
—
Units
mA
mA
nA
nA
nA
nA
—
—
V
V
V
V
V
V
Units
—
V
V
V
V
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