IS42VM81600E / IS42VM16800E / IS42VM32400E
16Mx8, 8Mx16, 4Mx32
128Mb Mobile Synchronous DRAM
Advanced Information
FEBRUARY 2009
DESCRIPTION
FEATURES
ISSI's 128Mb Mobile 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 128Mb Mobile Synchronous DRAM
is designed to minimize current consumption making it
ideal for low-power applications. Both TSOP and BGA
packages are offered, including industrial grade products.
•ꢀ 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)
KEY TIMING PARAMETERS
Parameter
-71
-752
-10
Unit
•ꢀ TCSR (Temperature Compensated Self Refresh)
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
•ꢀ PASR (Partial Arrays Self Refresh): 1/16, 1/8,
1/4, 1/2, and Full
•ꢀ Deep Power Down Mode (DPD)
7.0
9.6
7.5
9.6
10
12
ns
ns
•ꢀ Driver Strength Control (DS): 1/4, 1/2, and Full
143
104
133
104
100
83
Mhz
Mhz
OPTIONS
•ꢀ Configurations:
- 16M x 8
5.4
8.0
5.4
8.0
8.0
9.0
ns
ns
- 8M x 16
- 4M x 32
•ꢀ Power Supply
IS42VMxxx – Vd d /Vd d q = 1.8 V
•ꢀ Packages:
Note:
1. Available for x8 / x16 only
2. Available for x32 only
x8 / x16 –TSOP II (54), BGA (54) [x16 only]
x32 – TSOP II (86), BGA (90)
•ꢀ Temperature Range:
Commercial (0°C to +70°C)
Industrial (–40 ºC to 85 ºC)
•ꢀ Die Revision: E
ADDRESSING TABLE
Parameter
16M x 8
4M x 8 x 4 banks
4K/64ms
A0-A11
8M x 16
4M x 32
Configuration
2M x 16 x 4 banks
4K/64ms
A0-A11
1M x 32 x 4 banks
4K/64ms
A0-A11
Refresh Count
Row Addressing
Column Addressing
Bank Addressing
Precharge Addressing
A0-A9
A0-A8
A0-A7
BA0, BA1
A10
BA0, BA1
A10
BA0, BA1
A10
Copyright © 2006 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. - www.issi.com
Rev. 00B
1
01/22/09