IC41C4405x and IC41LV4405x Series
4M x 4 (16-MBIT) DYNAMIC RAM
WITH FAST PAGE MODE
FEATURES
DESCRIPTION
• Fast Page Mode Access Cycle
• TTL compatible inputs and outputs
• Refresh Interval:
The ICSI 4405x Series is a 4,194,304 x 4-bit high-performance
CMOS Dynamic Random Access Memory. The Fast Page
Mode allows 2,048 or 4096 random accesses within a single
row with access cycle time as short as 20 ns per 4-bit word.
-- 2,048 cycles/32 ms
-- 4,096 cycles/64 ms
These features make the 4405x Series ideally suited for high-
bandwidthgraphics, digitalsignalprocessing, high-performance
computing systems, and peripheral applications.
• Refresh Mode: RAS-Only,
CAS-before-RAS (CBR), and Hidden
• JEDEC standard pinout
• Single power supply:
5V ± 10% or 3.3V ± 10%
• Byte Write and Byte Read operation via
two CAS
The 4405x Series is packaged in a 24-pin 300mil SOJ and a 24
pin TSOP-2
PRODUCT SERIES OVERVIEW
KEY TIMING PARAMETERS
Part No.
Refresh
Voltage
Parameter
-50
05
13
-60 Unit
60 ns
RAS Access Time (tRAC)
CAS Access Time (tCAC)
Column Address Access Time (tAA)
Fast Page Mode Cycle Time (tPC)
Read/Write Cycle Time (tRC)
IS41C44052
IS41C44054
IS41LV44052
IS41LV44054
2K
5V±10%
15 ns
4K
5V±10%
25
30
ns
2K
4K
3.3V ± 10%
3.3V ± 10%
20
25 ns
84
104 ns
PIN CONFIGURATION
24 (26) Pin SOJ, TSOP-2
PIN DESCRIPTIONS
A0-A11 Address Inputs (4K Refresh)
VCC
I/O0
1
2
3
4
5
6
24
GND
I/O3
I/O2
CAS
OE
23
22
21
20
19
A0-A10 Address Inputs (2K Refresh)
I/O1
I/O0-3
WE
Data Inputs/Outputs
Write Enable
WE
RAS
OE
Output Enable
Row Address Strobe
Column Address Strobe
Power
*A11(NC)
A9
RAS
CAS
Vcc
A10
A0
7
18
17
16
15
14
13
A8
8
A7
A1
9
A6
GND
NC
Ground
A2
10
11
12
A5
No Connection
A3
A4
VCC
GND
* A11 is NC for 2K Refresh devices.
ICSI 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 2000, Integrated Circuit Solution Inc.
2
Integrated Circuit Solution Inc.
DR013-0B 10/17/2002
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
