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IS42VS32800J PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 IS42VS32800J
部品説明 256Mb Synchronous DRAM
メーカ ISSI
ロゴ ISSI ロゴ 



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IS42VS32800J Datasheet, IS42VS32800J PDF,ピン配置, 機能
IS42VS83200J / IS42VS16160J / IS42VS32800J
32Mx8, 16Mx16, 8Mx32
256Mb Synchronous DRAM
FEATURES
Fully synchronous; all signals referenced to a
positive clock edge
Internal bank for hiding row access and pre-
charge
Programmable CAS latency: 2, 3
Programmable Burst Length: 1, 2, 4, 8, and Full
Page
Programmable Burst Sequence:
– Sequential and Interleave
Auto Refresh (CBR)
OPTIONS
Configurations:
– 32M x 8
– 16M x 16
– 8M x 32
Power Supply
IS42VSxxx – Vdd/Vddq = 1.8V
Packages:
x8 –TSOP II (54)
x16 –TSOP II (54)
x32 – TSOP II (86)
Temperature Range:
Industrial (–40 ºC to 85 ºC)
FEBRUARY 2015
DESCRIPTION
ISSI's 256Mb Synchronous DRAM achieves high-speed
data transfer using pipeline architecture. All input and
output signals refer to the rising edge of the clock input.
Both write and read accesses to the SDRAM are burst
oriented. The 256Mb Synchronous DRAM is designed
to minimize power consumption making it ideal for low-
power applications.
KEY TIMING PARAMETERS
Parameter
CLK Cycle Time
CAS Latency = 3
CAS Latency = 2
CLK Frequency
CAS Latency = 3
CAS Latency = 2
Access Time from CLK
CAS Latency = 3
CAS Latency = 2
-75
7.5
9.6
133
104
5.4
8
-10
10
12
100
83
8
10
Unit
ns
ns
Mhz
Mhz
ns
ns
ADDRESSING TABLE
Parameter
Configuration
Refresh Count
Row Addressing
Column Addressing
Bank Addressing
Precharge Addressing
32M x 8
8M x 8 x 4 banks
8K/64ms
A0-A12
A0-A9
BA0, BA1
A10
16M x 16
4M x 16 x 4 banks
8K/64ms
A0-A12
A0-A8
BA0, BA1
A10
8M x 32
2M x 32 x 4 banks
4K/64ms
A0-A11
A0-A8
BA0, BA1
A10
Copyright © 2015 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
2/5/2015

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256Mb Synchronous DRAM

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