IS42S16800E-7BI-TR ISSI, Integrated Silicon Solution Inc, IS42S16800E-7BI-TR Datasheet - Page 17

• Manufacturer Part Number: IS42S16800E-7BI-TR
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S16800E-7BI-TR

• Organization: 16Mx8
• Density: 128Mb
• Address Bus: 14b
• Access Time (max): 6.5/5.4ns
• Maximum Clock Rate: 143MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TFBGA
• 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

AC ElECTRICAl CHARACTERISTICS
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Notes:
1. The power-on sequence must be executed before starting memory operation.
2. measured with t
3. The reference level is 1.4V when measuring input signal timing. Rise and fall times are measured between V
IS42S81600E, IS42S16800E
Integrated Silicon Solution, Inc. — www.issi.com
Rev. C
10/12/2010
Symbol Parameter
ck3
ck2
ac3
ac2
ch
cl
oh3
oh2
lz
hz
ds
dh
as
ah
cks
ckh
cms
cmh
rc
ras
rp
rcd
rrd
dpl
dal
mrd
dde
xsr
t
ref
Clock Cycle Time
Access Time From CLK
CLK HIGH Level Width
CLK LOW Level Width
Output Data Hold Time
Output LOW Impedance Time
Output HIGH Impedance Time
Input Data Setup Time
Input Data Hold Time
Address Setup Time
Address Hold Time
CKE Setup Time
CKE Hold Time
Command Setup Time (CS, RAS, CAS, WE, DQM)
Command Hold Time (CS, RAS, CAS, WE, DQM)
Command Period (REF to REF / ACT to ACT)
Command Period (ACT to PRE)
Command Period (PRE to ACT)
Active Command To Read / Write Command Delay Time 15 —
Command Period (ACT [0] to ACT[1])
Input Data To Precharge
Command Delay time
Input Data To Active / Refresh
Command Delay time (During Auto-Precharge)
Mode Register Program Time
Power Down Exit Setup Time
exit Self-Refresh to Active Time
Transition Time
Refresh Cycle Time (4096)
t
= 1 ns. If clock rising time is longer than 1ns, (t
(2)
(2)
(2)
(2)
(2)
(2)
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
(1,2,3)
(2)
(2)
Min.
2.5 —
2.5 —
2.5
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
0.3 1.2
10 —
55 —
38 100K
15 —
10 —
10 —
25 —
10 —
60 —
—
— 6.5
— 64
5
2
2
0
5
-5
t
—
—
—
—
—
/2 - 0.5) ns should be added to the parameter.
Max.
5
5
Min.
2.5 —
2.5 —
2.7 —
2.7 —
2.7 5.4
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
6.0 —
0.3 1.2
10 —
60 —
42 100K
18 —
18 —
12 —
12 —
12 —
67 —
— 5.4
— 6.5
30
— 64
6
0
-6
—
—
Max.
—
Min.
67.5 —
2.5 —
2.5 —
2.7 —
2.7 —
2.7 5.4
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
7.0 —
0.3 1.2
10 —
45 100K
20 —
20 —
14 —
14 —
15 —
70 —
— 5.4
— 6.5
35
— 64
7
0
-7
—
—
Max.
—
ih
(min.) and V
Min. Max. Units
67.5 —
7.5 —
2.5 —
2.5 —
2.7 —
2.7 —
2.7 5.4
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
1.5 —
0.8 —
7.5 —
0.3 1.2
45 100K
15 —
15 —
15 —
15 —
30 —
15 —
70 —
— —
— —
— 5.5
— 64
0 —
-75E
il
(max).
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
17