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Integrated Silicon Solution Electronic Components Datasheet

IS42SM32200K Datasheet

512K x 32Bits x 4Banks Mobile Synchronous DRAM

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IS42SM/RM/VM32200K
512K x 32Bits x 4Banks Mobile Synchronous DRAM
Description
These IS42SM/RM/VM32200K are mobile 67,108,864 bits CMOS Synchronous DRAM organized as 4 banks of 524,288 words x 32 bits.
These products are offering fully synchronous operation and are referenced to a positive edge of the clock. All inputs and outputs are
synchronized with the rising edge of the clock input. The data paths are internally pipelined to achieve high bandwidth. All input and
output voltage levels are compatible with LVCMOS.
Features
JEDEC standard 3.3V, 2.5V, 1.8V power supply
• Auto refresh and self refresh
• All pins are compatible with LVCMOS interface
• 4K refresh cycle / 64ms
• Programmable Burst Length and Burst Type
- 1, 2, 4, 8 or Full Page for Sequential Burst
- 4 or 8 for Interleave Burst
• Programmable CAS Latency : 2,3 clocks
• All inputs and outputs referenced to the positive edge of the
system clock
• Data mask function by DQM
• Internal 4 banks operation
• Burst Read Single Write operation
• Special Function Support
- PASR(Partial Array Self Refresh)
- Auto TCSR(Temperature Compensated Self Refresh)
- Programmable Driver Strength Control
- Full Strength or 1/2, 1/4, 1/8 of Full Strength
- Deep Power Down Mode
• Automatic precharge, includes CONCURRENT Auto Precharge
Mode and controlled Precharge.
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 without 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
Rev. A | August 2012
www.issi.com - DRAM@issi.com
1


Integrated Silicon Solution Electronic Components Datasheet

IS42SM32200K Datasheet

512K x 32Bits x 4Banks Mobile Synchronous DRAM

No Preview Available !

IS42SM/RM/VM32200K
Figure1: 90Ball FBGA Ball Assignment
1 23
456
7
8
9
A DQ26 DQ24 VSS
B DQ28 VDDQ VSSQ
C VSSQ DQ27 DQ25
D VSSQ DQ29 DQ30
E VDDQ DQ31 NC
F VSS DQM3 A3
G A4 A5 A6
H A7 A8 NC
J CLK CKE A9
K DQM1 NC
NC
L VDDQ DQ8 VSS
M VSSQ DQ10 DQ9
N VSSQ DQ12 DQ14
P DQ11 VDDQ VSSQ
R DQ13 DQ15 VSS
VDD DQ23 DQ21
VDDQ VSSQ DQ19
DQ22 DQ20 VDDQ
DQ17 DQ18 VDDQ
NC DQ16 VSSQ
A2 DQM2 VDD
A10 A0
A1
NC BA1 NC
BA0 /CS /RAS
/CAS /WE DQM0
VDD DQ7 VSSQ
DQ6 DQ5 VDDQ
DQ1 DQ3 VDDQ
VDDQ VSSQ DQ4
VDD DQ0 DQ2
[Top View]
Rev. A | August 2012
www.issi.com - DRAM@issi.com
2


Part Number IS42SM32200K
Description 512K x 32Bits x 4Banks Mobile Synchronous DRAM
Maker ISSI
Total Page 30 Pages
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