IS42S16800B-7TI ISSI, Integrated Silicon Solution Inc, IS42S16800B-7TI Datasheet - Page 17
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IS42S16800B-7TI
Manufacturer Part Number
IS42S16800B-7TI
Description
Manufacturer
ISSI, Integrated Silicon Solution Inc
Type
SDRAMr
Datasheet
1.IS42S16800B-7TI.pdf
(60 pages)
Specifications of IS42S16800B-7TI
Organization
8Mx16
Density
128Mb
Address Bus
14b
Access Time (max)
6/5.4ns
Maximum Clock Rate
143MHz
Operating Supply Voltage (typ)
3.3V
Package Type
TSOP-II
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
3V
Supply Current
130mA
Pin Count
54
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Not Compliant
OPERATING FREQUENCY / lATENCY RElATIONSHIPS
Integrated Silicon Solution, Inc. — www.issi.com —
Rev. G
06/11/09
IS42S81600B, IS42S16800B
SYMBOl PARAMETER
—
—
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
cac
rcd
rac
rc
ras
rp
rrd
ccd
dpl
dal
rbd
wbd
rql
wdl
pql
qmd
dmd
mrd
Clock Cycle Time
Operating Frequency (CAS Latency = 3)
CAS Latency
Active Command To Read/Write Command Delay Time
RAS Latency (t
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)
Input Data To Precharge Command Delay Time
Input Data To Active/Refresh Command Delay Time5
(During Auto-Precharge)
Burst Stop Command To Output in HIGH-Z Delay Time
(Read)
Burst Stop Command To Input in Invalid Delay Time0
(Write)
Precharge Command To Output in HIGH-Z Delay Time
(Read)
Precharge Command To Input in Invalid Delay Time 0
(Write)
Last Output To Auto-Precharge Start Time (Read)
DQM To Output Delay Time (Read)
DQM To Input Delay Time (Write)
Mode Register Set To Command Delay Time
rcd
+ t
cac
)
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
1-800-379-4774
167
10
—
—
—
-2
—
6
3
3
6
7
3
2
1
2
5
3
0
3
0
2
0
2
143
10
–2
—
—
—
—
7
3
3
6
7
3
2
1
2
5
3
0
3
0
2
0
2
133
7.5
—
—
—
—
-1
2
3
5
9
6
3
2
1
2
4
2
0
2
0
2
0
2
cycle
cycle
cycle
100
10
—
—
—
—
-1
2
2
4
7
5
2
2
1
2
2
2
2
0
2
UNITS
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
cycle
MHz
ns
17