IS42RM16800E View Datasheet(PDF) - Integrated Silicon Solution
Part Name
Description
Manufacturer
IS42RM16800E Datasheet PDF : 25 Pages
| |||
IS42SM81600E / IS42SM16800E / IS42SM32400E
IS42RM81600E / IS42RM16800E / IS42RM32400E
OPERATING FREQUENCY/LATENCY RELATIONSHIPS
Symbol
—
—
tcac
trcd
trac
trc
tras
trp
trrd
tccd
Parameter
Clock Cycle Time
Operating Frequency
CAS Latency
Active Command To Read/Write Command Delay Time
RAS Latency (trcd + tcac)
Command Period (REF to REF / ACT to ACT)
Command Period (ACT to PRE)
Command Period (PRE to ACT)
Command Period (ACT[0] to ACT [1])
Column Command Delay Time
(READ, READA, WRIT, WRITA)
tdpl
Input Data To Precharge Command Delay Time
tdal
Input Data To Active/Refresh Command Delay Time
(During Auto-Precharge)
trbd
Burst Stop Command To Output in HIGH-Z Delay Time
(Read)
twbd
Burst Stop Command To Input in Invalid Delay Time
(Write)
trql
Precharge Command To Output in HIGH-Z Delay Time
(Read)
twdl
Precharge Command To Input in Invalid Delay Time
(Write)
tpql
Last Output To Auto-Precharge Start Time (Read)
tqmd
DQM To Output Delay Time (Read)
tdmd
DQM To Input Delay Time (Write)
tmrd
Mode Register Set To Command Delay Time
-6
-7
-75E Units
6
7
7.5
ns
166
143
133
MHz
3
3
2
cycle
3
3
2
cycle
6
6
4
cycle
10
10
9
cycle
7
7
6
cycle
3
3
2
cycle
2
2
2
cycle
1
1
1
cycle
2
2
2
cycle
5
5
4
cycle
3
3
2
cycle
0
0
0
cycle
3
3
2
cycle
0
0
0
cycle
–2
–2
–2
cycle
2
2
2
cycle
0
0
0
cycle
2
2
2
cycle
Integrated Silicon Solution, Inc. - www.issi.com
19
Rev. B
04/15/2011
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