MT47H128M8HQ-187EIT:G Micron Technology Inc, MT47H128M8HQ-187EIT:G Datasheet - Page 60
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MT47H128M8HQ-187EIT:G
Manufacturer Part Number
MT47H128M8HQ-187EIT:G
Description
Manufacturer
Micron Technology Inc
Datasheet
1.MT47H128M8HQ-187EITG.pdf
(136 pages)
Specifications of MT47H128M8HQ-187EIT:G
Lead Free Status / Rohs Status
Compliant
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Input Slew Rate Derating
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. W 7/11 EN
For all input signals, the total
by adding the data sheet
value, respectively. Example:
t
crossing of V
a falling signal is defined as the slew rate between the last crossing of V
first crossing of V
If the actual signal is always earlier than the nominal slew rate line between shaded
“V
(page 63)).
If the actual signal is later than the nominal slew rate line anywhere between the shaded
“V
level to DC level is used for the derating value (see Figure 24 (page 63)).
t
crossing of V
ing signal, is defined as the slew rate between the last crossing of V
crossing of V
If the actual signal is always later than the nominal slew rate line between shaded “DC
to V
(page 64)).
If the actual signal is earlier than the nominal slew rate line anywhere between shaded
“DC to V
level to V
Although the total setup time might be negative for slow slew rates (a valid input signal
will not have reached V
put signal is still required to complete the transition and reach V
For slew rates in between the values listed in Table 29 (page 61) and Table 30
(page 62), the derating values may obtained by linear interpolation.
IS, the nominal slew rate for a rising signal, is defined as the slew rate between the last
IH, the nominal slew rate for a rising signal, is defined as the slew rate between the last
REF(DC)
REF(DC)
REF(DC)
REF(DC)
REF(DC)
to AC region,” use the nominal slew rate for the derating value (Figure 23
to AC region,” the slew rate of a tangent line to the actual signal from the AC
region,” use the nominal slew rate for the derating value (Figure 25
REF(DC)
IL(DC)max
REF(DC)
region,” the slew rate of a tangent line to the actual signal from the DC
level is used for the derating value (Figure 26 (page 64)).
IL(AC)max
.
and the first crossing of V
and the first crossing of V
IH[AC]
t
.
IS (base) and
/V
t
60
t
IS (total setup time) =
IS (setup time) and
IL[AC]
at the time of the rising clock transition), a valid in-
t
Micron Technology, Inc. reserves the right to change products or specifications without notice.
IH (base) value to the
IH(AC)min
1Gb: x4, x8, x16 DDR2 SDRAM
REF(DC)
t
IH (hold time) required is calculated
t
IS (base) +
Input Slew Rate Derating
. Setup nominal slew rate (
.
t
IH, nominal slew rate for a fall-
2007 Micron Technology, Inc. All rights reserved.
t
IS and
IH(AC)
t
IS.
IH(DC)min
/V
REF(DC)
IL(AC)
t
IH derating
and the first
.
and the
t
IS) for
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