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IS42S16400J

ISSI
Part Number IS42S16400J
Manufacturer ISSI
Description SYNCHRONOUS DYNAMIC RAM
Published May 12, 2014
Detailed Description IS42S16400J IS45S16400J 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM FEBRUARY 2022 FEATURES • Cloc...
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IS42S16400J
IS42S16400J

Overview
IS42S16400J IS45S16400J 1 Meg Bits x 16 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM FEBRUARY 2022 FEATURES • Clock frequency: 200, 166, 143, 133 MHz • Fully synchronous; all signals referenced to a positive clock edge • Internal bank for hiding row access/precharge • Single 3.
3V power supply • LVTTL interface • Programmable burst length – (1, 2, 4, 8, full page) • Programmable burst sequence: Sequential/Interleave • Self refresh modes • Auto refresh (CBR) • 4096 refresh cycles every 64 ms (Com, Ind, A1 grade) or 16ms (A2 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 TF-BGA (8mm x 8mm) 60-ball TF-BGA (10.
1mm x 6.
4mm) • 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 64Mb Synchronous DRAM is organized as 1,048,576 bits x 16-bit x 4-bank for improved performance.
The synchronous DRAMs achieve high-speed data transfer using pipeline architecture.
All inputs and outputs signals refer to the rising edge of the clock input.
KEY TIMING PARAMETERS Parameter -5 -6 -7 Unit Clk Cycle Time CAS Latency = 3 CAS Latency = 2 5 6 7 ns 7.
5 7.
5 7.
5 ns Clk Frequency CAS Latency = 3 CAS Latency = 2 200 166 143 Mhz 133 133 133 Mhz Access Time from Clock CAS Latency = 3 4.
8 5.
4 5.
4 ns CAS Latency = 2 5.
4 5.
4 5.
4 ns ADDRESS TABLE Parameter 4M x 16 Configuration 1M x 16 x 4 banks Refresh Count Com.
/Ind.
A1 A2 4K/64ms 4K/64ms 4K/16ms Row Addresses A0-A11 Column Addresses A0-A7 Bank Address Pins BA0, BA1 Auto Precharge Pins A10/AP Copyright © 2022 Integrated Silicon Solution, Inc.
All rights reserved.
ISSI reserves the right to make changes to this specification and its products at any time without notice...


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