IC41C4405x and IC41LV4405x Series
4M x 4 (16-MBIT) DYNAMIC RAM
WITH FAST PAGE MODE
FEATURES
• Fast Page Mode Access Cycle
• TTL compatible inputs and outputs
• Refresh Interval:
-- 2,048 cycles/32 ms
-- 4,096 cycles/64 ms
• 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
DESCRIPTION
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.
These features make the 4405x Series ideally suited for high-
bandwidth graphics, digital signal processing, high-performance
computing systems, and peripheral applications.
The 4405x Series is packaged in a 24-pin 300mil SOJ and a 24
pin TSOP-2
PRODUCT SERIES OVERVIEW
Part No.
IS41C44052
IS41C44054
IS41LV44052
IS41LV44054
2K
4K
Refresh
2K
4K
Voltage
V10%
5
±
V10%
5
±
3.3V ± 10%
3.3V ± 10%
KEY TIMING PARAMETERS
Parameter
RAS
Access Time (t
RAC
)
CAS
Access Time (t
CAC
)
Column Address Access Time (t
AA
)
Fast Page Mode Cycle Time (t
PC
)
Read/Write Cycle Time (t
RC
)
-50
0
5
1
3
2
5
2
0
8
4
6
0
15
30
25
104
-60
ns
ns
ns
ns
ns
Unit
PIN CONFIGURATION
24 (26) Pin SOJ, TSOP-2
VCC
I/O0
I/O1
WE
RAS
*A11(NC)
A10
A0
A1
A2
A3
VCC
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
GND
I/O3
I/O2
CAS
OE
A9
A8
A7
A6
A5
A4
GND
PIN DESCRIPTIONS
A0-A11
A0-A10
I/O0-3
WE
OE
RAS
CAS
Vc
c
GND
NC
Address Inputs (4K Refresh)
Address Inputs (2K Refresh)
Data Inputs/Outputs
Write Enable
Output Enable
Row Address Strobe
Column Address Strobe
Power
Ground
No Connection
* 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
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
