DESCRIPTION
Accutek
Microcircuit
Corporation
AK584096AS / AK584096AG
4,194,304 x 8 Bit CMOS
Dynamic Random Access Memory
Front View
30-Pin SIM
The Accutek AK584096 high density memory module is CMOS
DRAM organized in 4 Meg x 8 bit words. The assembly consists of
eight standard 4 Meg x 1 DRAMs in plastic SOJ packages mounted
on the front side of a printed circuit board. The module can be con-
figured as a leadless 30 pad SIM or a leaded 30 pin SIP. The mod-
ule is only 0.800 inch high (same height as a standard 1 Meg
module) making it ideally suited for applications with low height
restrictions.
The operation of the AK584096 is identical to eight 4 Meg x 1
DRAMs. The data input is tied to the data output and brought out
separately for each device, with common RAS, CAS and WE con-
trol. This common I/O feature dictates the use of early-write cycles
to prevent contention of D and Q. Since the Write-Enable (WE) sig-
nal must always go low before CAS in a write cycle, Read-Write and
Read-Modify-Write operation is not possible.
1
30
30-Pin SIP
1
FEATURES
·
4,194,304 x 8 bit organization
·
Optional 30 Pad leadless SIM (Single In-Line Module) or 30
Pin leaded SIP (Single In-Line Package)
·
JEDEC standard pinout
·
Each device has common D and Q lines with common RAS,
CAS and WE control
·
CAS-before-RAS refresh
·
Power
4.40 Watt Max Active (80 nSEC)
3.75 Watt Max Active (100 nSEC)
44 mW Max Standby
·
Operating free air temperature 0
0
C to 70
0
C
·
Upward compatible with AK5816384
·
Downward compatible with AK58256 and AK581024
PIN NOMENCLATURE
DQ
1
- DQ
8
A
0
- A
10
CAS
RAS
WE
Vcc
Vss
NC
Data In / Data Out
Address Inputs
Column Address Strobe
Row Address Strobe
Write Enable
5v Supply
Ground
No Connect
PIN ASSIGNMENT
PIN #
SYMBOL
PIN #
SYMBOL
FUNCTIONAL DIAGRAM
DQ5
A8
A9
A10
DQ6
WE
Vss
DQ7
NC
DQ8
NC
RAS
NC
NC
Vcc
1
2
3
4
5
6
7
8
9
10
11
Vcc
CAS
DQ1
A0
A1
DQ2
A2
A3
Vss
DQ3
A4
A5
DQ4
A6
A7
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
MODULE OPTIONS
Leadless SIM: AK584096AS
Leaded SIP: AK584096AG
12
13
14
15
Position
1
2
ORDERING INFORMATION
PART NUMBER CODING INTERPRETATION
1
2
3
4
5
6
7
8
MECHANICAL DIMENSIONS
Inches
3
4
5
6
7
8
Product
AK = Accutek Memory
Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
Organization/Word Width
1 = by 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
Size/Bits Depth
64 = 64K
4096 = 4 MEG
256 = 256K
8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
Package Type
G = Single In-Line Package (SIP)
S = Single In-Line Module (SIM)
D = Dual In-Line Package (DIP)
W = .050 inch Pitch Edge Connect
Z = Zig-Zag In-Line Package (ZIP)
Special Designation
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
Separator
- = Commercial 0
0
C to +70
0
C
M = Military Equivalent Screened
(-55
0
C to +125
0
C)
I = Industrial Temperature Tested
(-45
0
C to +85
0
C)
X = Burned In
Speed (first two significant digits)
DRAMS
SRAMS
50 = 50 nS
8 =
8 nS
60 = 60 nS
10 = 10 nS
70 = 70 nS
12 = 12 nS
80 = 80 nS
15 = 15 nS
0.815
0.785
0.425
0.375
.100
.060
0.100
TYP
0.815
0.785
0.325
0.275
1
1
0.100
TYP
3.100
3.090
3.525
3.475
0.024
0.016
30
0.053
0.047
0.200
MAX
0.100
TYP
The numbers and coding on this page do not include all variations
available but are show as examples of the most widely used variations.
Contact Accutek if other information is required.
EXAMPLES:
AK584096ASP-80
4 Meg x 8, 80 nSEC DRAM 30 pin SIM Configuration, Page Mode
AK584096AGN-70
4 Meg x 8, 70 nSEC Dram 30 pin SIP Configuration, Nibble Mode
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
VOICE: 978-465-6200 FAX: 978-462-3396
Email: accutek@seacoast.com
Internet: www.accutekmicro.com
Accutek Reserves the right to make changes in specifications at any
time and without notice. Accutek does not assume any responsibility
for the use of any circuitry described; no circuit patent licenses are im-
plied. Preliminary data sheets contain minimum and maximum limits
based upon design objectives, which are subject to change upon full
characterization over the specific operating conditions.
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