IS41C85120 Datasheet, PDF (1/19 Pages) Integrated Silicon Solution, Inc – 512K x 8 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE

IS41C85120
IS41LV85120
512K x 8 (4-MBIT) DYNAMIC RAM
WITH EDO PAGE MODE
ISSI^®
PRELIMINARY INFORMATION
SEPTEMBER 2001
FEATURES
• TTL compatible inputs and outputs
• Refresh Interval: 1024 cycles/16 ms
• Refresh Mode : RAS-Only, CAS-before-RAS
(CBR), and Hidden
• JEDEC standard pinout
• Single power supply
5V ± 10% (IS41C85120)
3.3V ± 10% (IS41LV85120)
• Industrail Temperature Range -40^oC to 85^oC
KEY TIMING PARAMETERS
Parameter
-35
Max. RAS Access Time (tRAC)
35
Max. CAS Access Time (tCAC)
10
Max. Column Address Access Time (tAA) 18
Min. Fast Page Mode Cycle Time (tPC) 12
Min. Read/Write Cycle Time (tRC)
60
-60 Unit
60 ns
15 ns
30 ns
25 ns
110 ns
PIN DESCRIPTIONS
A0-A9
I/O0-I/O7
WE
OE
RAS
CAS
VCC
GND
NC
Address Inputs
Data Inputs/Outputs
Write Enable
Output Enable
Row Address Strobe
Column Address Strobe
Power
Ground
No Connection
DESCRIPTION
The ISSI IS41C85120 and IS41LV85120 are 524,288 x 8-bit
high-performance CMOS Dynamic Random Access
Memory. Both products offer accelerated cycle access EDO
Page Mode. EDO Page Mode allows 512 random accesses
within a single row with access cycle time as short as 10ns per
8-bit word. The Byte Write control, of upper and lower byte,
makes the IS41C85120 and IS41LV85120 ideal for use in 16
and 32-bit wide data bus systems.
These features make the IS41C85120 and IS41LV85120
ideally suited for high band-width graphics, digital signal
processing, high-performance computing systems, and pe-
ripheral applications.
The IS41C85120 and IS41LV85120 are available in a
28-pin, 400-mil SOJ package.
PIN CONFIGURATION
28-Pin SOJ
VCC 1
I/O0 2
I/O1 3
I/O2 4
I/O3 5
NC 6
WE 7
RAS 8
A9 9
A0 10
A1 11
A2 12
A3 13
VCC 14
28 GND
27 I/O7
26 I/O6
25 I/O5
24 I/O4
23 CAS
22 OE
21 NC
20 A8
19 A7
18 A6
17 A5
16 A4
15 GND
This document contains PRELIMINARY INFORMATION data. ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the
best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774
1
PRELIMINARY INFORMATION Rev. 00B
09/25/01