IS42S16160A-6T ISSI, Integrated Silicon Solution Inc, IS42S16160A-6T Datasheet - Page 27

• Manufacturer Part Number: IS42S16160A-6T
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S16160A-6T

• Organization: 16Mx16
• Density: 256Mb
• Address Bus: 15b
• Access Time (max): 5ns
• Maximum Clock Rate: 167MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 160mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

IS42S83200A
IS42S16160A
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. D
11/01/05
CLK SUSPEND
CKE controls the internal CLK at the following cycle.
Figure below shows how CKE works. By negating CKE,
the next internal CLK is suspended. The purpose of
CLK suspend is power down, output suspend or input
Command
Command
Command
CLK
CKE
CKE
CLK
CKE
DQ
(4-bank x 8,388,608 - word x 8-bit)
(4-bank x 4,194,304 - word x 16-bit)
Write
PRE
ACT
ext.CLK
D0
int.CLK
CKE
NOP NOP NOP
NOP NOP NOP
D1
tIH
Power Down by CKE
D2
DQ Suspend by CKE
tIS
D3
tIH
suspend. CKE is a synchronous input except during
the self-refresh mode. CLK suspend can be performed
either when the banks are active or idle. A command
at the suspended cycle is ignored.
tIS
Standby Power Down
Active Power Down
Read
Q0
Q1
Q2
Q3
ISSI
27
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