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IC41C1665 Datasheet(PDF) 2 Page - Integrated Circuit Solution Inc

Part No. IC41C1665
Description  64K x16 bit Dynamic RAM with Fast Page Mode
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Maker  ICSI [Integrated Circuit Solution Inc]
Homepage  http://www.icsi.com.tw
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IC41C1665 Datasheet(HTML) 2 Page - Integrated Circuit Solution Inc

 
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IC41C1665
IC41LV1665
2
Integrated Circuit Solution Inc.
DR031-0A 10/17/2001
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.
FEATURES
• Fast access and cycle time
• TTL compatible inputs and outputs
• Refresh Interval: 256 cycles/4 ms
• Refresh Mode:
RAS-Only, CAS-before-RAS
(CBR), Hidden
• JEDEC standard pinout
• Single power supply:
— 5V ± 10% (IC41C1665)
— 3.3V ± 10% (IC41LV1665)
• Byte Write and Byte Read operation via
two
CAS
• Available in 40-pin SOJ and TSOP-2
DESCRIPTION
The
ICSI IC41C1665 and the IC41LV1665 are 65,536 x 16-
bit high-performance CMOS Dynamic Random Access
Memory. Fast Page Mode allows 256 random accesses
within a single row with access cycle time as short as 12 ns
per 16-bit word. The Byte Write control, of upper and lower
byte, makes these devices ideal for use in 16-, 32-bit wide
data bus systems.
These features make the IC41C1665 and the IC41LV1665
ideally suited for high band-width graphics, digital signal
processing, high-performance computing systems, and
peripheral applications.
The IC41C1665 and the IC41LV1665 are packaged in a 40-
pin, 400mil SOJ and TSOP-2.
64K x 16 (1-MBIT) DYNAMIC RAM
WITH FAST PAGE MODE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
NC
A7
A6
A5
A4
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
I/O0
I/O1
I/O2
I/O3
VCC
I/O4
I/O5
I/O6
I/O7
NC
NC
WE
RAS
NC
A0
A1
A2
A3
VCC
GND
I/O15
I/O14
I/O13
I/O12
GND
I/O11
I/O10
I/O9
I/O8
NC
LCAS
UCAS
OE
NC
A7
A6
A5
A4
GND
PIN DESCRIPTIONS
A0-A7
Address Inputs
I/O0-I/O15
Data Inputs/Outputs
WE
Write Enable
OE
Output Enable
RAS
Row Address Strobe
UCAS
Upper Column Address
Strobe
LCAS
Lower Column Address
Strobe
Vcc
Power
GND
Ground
NC
No Connection
40-Pin SOJ
PIN CONFIGURATIONS
40-Pin TSOP-2
KEY TIMING PARAMETERS
Parameter
-25
-30
-35
-40
Unit
Max.
RAS Access Time (tRAC)
2530
3540
ns
Max.
CAS Access Time (tCAC)8
9
10
11
ns
Max. Column Address Access Time (tAA) 1216
1820
ns
Min. Fast Page Mode Cycle Time (tPC)
1520
2325
ns
Min. Read/Write Cycle Time (tRC)
4355
6575
ns


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