IC41C4105 Datasheet, PDF (2/17 Pages) Integrated Circuit Solution Inc – 1Mx4 bit Dynamic RAM with Fast Page Mode

IC41C4105 and IC41LV4105
1M x 4 (4-MBIT) DYNAMIC RAM
WITH FAST PAGE MODE
FEATURES
• Fast Page Mode Access Cycle
• TTL compatible inputs and outputs
• Refresh Interval:
-- 1,024 cycles/16 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 4105 Series is a 1,048,576 x 4-bit high-performance
CMOS Dynamic Random Access Memory. The Fast Page
Mode allows 1,024 random accesses within a single row with
access cycle time as short as 12 ns per 4-bit word.
These features make the 4105 Series ideally suited for high-
bandwidth graphics, digital signal processing, high-performance
computing systems, and peripheral applications.
The 4105 Series is packaged in a 20-pin 300mil SOJ and a 20
pin TSOP-2
PRODUCT SERIES OVERVIEW
Part No.
Refresh
Voltage
IC41C4105
1K
5V ± 10%
IC41LV4105
1K
3.3V ± 10%
PIN CONFIGURATION
20 (26) Pin SOJ, TSOP-2
KEY TIMING PARAMETERS
Parameter
RAS Access Time (tRAC)
CAS Access Time (tCAC)
-35 -50 -60 Unit
35 50 60 ns
10 14 15 ns
Column Address Access Time (tAA) 18 25 30 ns
Fast Page Mode Cycle Time (tPC) 12 20 25 ns
Read/Write Cycle Time (tRC)
60 90 110 ns
PIN DESCRIPTIONS
A0-A9
I/O0-3
WE
OE
RAS
CAS
Vcc
GND
Address Inputs
Data Inputs/Outputs
Write Enable
Output Enable
Row Address Strobe
Column Address Strobe
Power
Ground
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.
DR019-0A 08/01/2001