256Mb SYNCHRONOUS DRAM
IS42S83200J, IS42S16160J IS45S83200J, IS45S16160J
32Meg x 8, 16Meg x16 SEPTEMBER 2020 256Mb SYNCHRONOUS DRAM
FEATURES...
Description
IS42S83200J, IS42S16160J IS45S83200J, IS45S16160J
32Meg x 8, 16Meg x16 SEPTEMBER 2020 256Mb SYNCHRONOUS DRAM
FEATURES Clock frequency: 166, 143, 133 MHz Fully synchronous; all signals referenced to a
positive clock edge Internal bank for hiding row access/precharge Single Power supply: 3.3V + 0.3V LVTTL interface Programmable burst length
– (1, 2, 4, 8, full page) Programmable burst sequence:
Sequential/Interleave Auto Refresh (CBR) Self Refresh 8K refresh cycles every 32 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
OPTIONS Package:
54-pin TSOP-II 54-ball BGA Operating Temperature Range: Commercial (0oC to +70oC) Industrial (-40oC to +85oC) Automotive Grade A1 (-40oC to +85oC) Automotive Grade A2 (-40oC to +105oC)
OVERVIEW
ISSI's 256Mb Synchronous DRAM achieves high-speed
data transfer using pipeline architecture. All inputs and outputs signals refer to the rising edge of the clock input. The 256Mb SDRAM is organized as follows.
IS42/45S83200J IS42/45S16160J
8M x 8 x 4 Banks 4M x16x4 Banks
54-pin TSOPII 54-pin TSOPII
54-ball BGA
54-ball BGA
KEY TIMING PARAMETERS
Parameter -6
-7
Unit
Clk Cycle Time
CAS Latency = 3
6
7
ns
CAS Latency = 2
10
7.5 ns
Clk Frequency
CAS Latency = 3
166 143 Mhz
CAS...
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