IS42S81600F Datasheet, PDF (1/62 Pages) Integrated Silicon Solution, Inc – 128Mb SYNCHRONOUS DRAM

IS42/45S81600F
IS42/45S16800F
16M x 8, 8M x16 _{MAY 2012}
128Mb SYNCHRONOUS DRAM
FEATURES
• Clock frequency: 200, 166, 143 MHz
• Fully synchronous; all signals referenced to a
positive clock edge
• Internal bank for hiding row access/precharge
• Power supply
Vdd Vddq
IS42/45S81600F 3.3V 3.3V
IS42/45S16800F 3.3V 3.3V
• LVTTL interface
• Programmable burst length
– (1, 2, 4, 8, full page)
• Programmable burst sequence:
Sequential/Interleave
• Auto Refresh (CBR)
• Self Refresh
• 4096 refresh cycles every 16 ms (A2 grade) or
64 ms (Commercial, Industrial, A1 grade)
• Random column address every clock cycle
• Programmable CAS latency (2, 3 clocks)
• Burst read/write and burst read/single write
operations capability
• Burst termination by burst stop and precharge
command
• Temperature Ranges:
Commercial (0^oC to +70^oC)
Industrial (-40^oC to +85^oC)
Automotive, A1 (-40^oC to +85^oC)
Automotive, A2 (-40^oC to +105^oC)
OVERVIEW
ISSI's 128Mb Synchronous DRAMachieves high-speed
data transfer using pipeline architecture.All inputs and
outputs signals referto the rising edge of the clock input.
The 128Mb SDRAM is organized as follows.
IS42/45S81600F
4M x8 x4 Banks
54-pin TSOPII
IS42/45S16800F
2M x16 x4 Banks
54-pin TSOPII
54-ball BGA
KEY TIMING PARAMETERS
Parameter
-5 -6 -7 Unit
Clk Cycle Time
CAS Latency = 3
567
ns
CAS Latency = 2
10 10 7.5
ns
Clk Frequency
CAS Latency = 3
200 166 143
Mhz
CAS Latency = 2
100 100 133
Mhz
Access Timefrom Clock
CAS Latency = 3
5 5.4 5.4
ns
CAS Latency = 2
6.5 6.5 5.4
ns
Copyright © 2012 Integrated Silicon Solution, Inc.All rights reserved.ISSI reserves the right to make changes to this specification and its products at any time with-
out notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain
the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be
expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated
Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. — www.issi.com
1
Rev. B
05/08/2012