MT47H256M4CF-187ELM View Datasheet(PDF) - Micron Technology
Part Name
Description
MFG CO.
MT47H256M4CF-187ELM Datasheet PDF : 133 Pages
| |||
Table 12: AC Operating Specifications and Conditions (Continued)
Not all speed grades listed may be supported for this device; refer to the title page for speeds supported; Notes: 1–5 apply to the entire table;
VDDQ = 1.8V ±0.1V, VDD = 1.8V ±0.1V
AC Characteristics
-187E
-25E
-25
-3E
-3
-37E
-5E
Parameter
Symbol Min Max Min Max Min Max Min Max Min Max Min Max Min Max Units Notes
DQS rising edge to tDQSS
CK rising edge
MIN = –0.25 × tCK
MAX = 0.25 × tCK
tCK
18
DQS input-high
pulse width
tDQSH
MIN = 0.35 × tCK
MAX = n/a
tCK
18
DQS input-low
pulse width
tDQSL
MIN = 0.35 × tCK
MAX = n/a
tCK
18
DQS falling to CK
rising: setup time
tDSS
MIN = 0.2 × tCK
MAX = n/a
tCK
18
DQS falling from
CK rising:
hold time
tDSH
MIN = 0.2 × tCK
MAX = n/a
tCK
18
Write preamble
setup time
tWPRES
MIN = 0
MAX = n/a
ps 23, 24
DQS write
preamble
tWPRE
MIN = 0.35 × tCK
MAX = n/a
tCK
18
DQS write
postamble
tWPST
MIN = 0.4 × tCK
MAX = 0.6 × tCK
tCK 18, 25
WRITE command
–
to first DQS
transition
MIN = WL - tDQSS
tCK
MAX = WL + tDQSS
Share Link: 