ACCUTEK AK584096BS_09

AK584096BS / AK584096BG
4,194,304 Word by 8 Bit CMOS
Dynamic Random Access Memory
ACCUTEK
DESCRIPTION
MICROCIRCUIT
CORPORATION
Front View
30-Pin SIM
The Accutek AK584096 high density memory module is a CMOS
dynamic RAM organized in 4 Meg x 8 bit words. The assembly consists of two 4 Meg x 4 DRAMS, mounted on the front side of a printed
circuit board in 30 pad SIM (leadless) or 30 pin SIP (leaded) configuration with JEDEC-standard pinouts. Designed especially for
low-height applications such as VMEbus boards, this low profile
module is 0.550 inch high.
+
+
1
30
30-Pin SIP
+
+
The operation is identical to eight 4 Meg x 1 DRAMs. The data input/output is brought out separately for each bit, with common RAS ,
CAS and WE control. This common I/O feature dictates the use of
early-write cycles to prevent contention of Data In and Data Out.
Since the Write-Enable (WE) signal must always go low before CAS
in a write cycle, Read-Write and Read-Modify-Write operation is not
possible.
1
FEATURES
· 4,194,304 x 8 bit organization
· Low Profile 30 pin (SIP) Single In-Line package
· Power
0.095 Watt Max Active, 70 nSEC
1.060 Watt Max Active, 60 nSEC
11.0 mWatt Max Standy
· JEDEC standard pinout
· Operating free air temperature 00C to 700C
· Low Profile 30 pad (SIM) Single In-Line Memory
· Common CAS and RAS control for eight common DQ Lines
· Downward compatible with AK581024 and AK58256
· CAS-before-RAS refresh
· Upward compatible with AK5816384
· Refresh cycle 2048 cycles in 32 mSEC
PIN NOMENCLATURE
A0 - A10
Address Inputs
RAS0
Row Address Strobe
Column Address Strobe
CAS
· Fast Page Mode and Static Column Mode versions available,
nibble mode is not possible
PIN ASSIGNMENT
Pi
n#
FUNCTIONAL DIAGRAM
Symbol
Pi
n#
Symbol
1
Vcc
16
DQ5
2
CAS
17
A8
3
DQ1
18
A9
A0
19
A10
DQ6
WE
Write Enable
4
OE
Output Enable
5
A1
20
6
DQ2
21
WE
7
A2
22
Vss
DQ7
DQ1 - DQ8
Data In/Data Out
Vcc
5v Supply
8
A3
23
Ground
9
Vss
24
NC
10
DQ3
25
DQ8
11
A4
26
NC
12
A5
27
RAS0
13
DQ4
28
NC
14
A6
29
NC
15
A7
30
Vcc
Vss
NC
No Connect
MODULE OPTIONS
Leadless SIM: AK584096BS
Leaded SIP: AK584096BG
EXAMPLES:
ORDERING INFORMATION
AK584096BGP-70
PART NUMBER CODING INTERPRETATION
Position
1 2 3 4 5 6 7 8
4 Meg x 8, CMOS Dynamic RAM, Leaded SIP, Page Mode, Commercial, 70 nSEC Access Time
AK584096BSP-60
1
4 Meg x 8, CMOS Dynamic RAM, Leadless SIM, Page Mode, Commercial, 60 nSEC Access Time
Product
AK = Accutek Memory
2
Type
MECHANICAL DIMENSIONS
Inches
3
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
Organization/Word Width
4
1 = by 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
Size/Bits Depth
5
64 = 64K
256 = 256K
1024 = 1 MEG
Package Type
4096 =
8192 =
16384 =
4 MEG
8 MEG
16 MEG
+
1
0.100"
+
1
C
L C
L
3.505"
MAX
3.100"
MAX
30
+
0.200"
MAX
- = Commercial 00C to +700C
M = Military Equivalent Screened
(-550C to +1250C)
I = Industrial Temperature Tested
(-450C to +850C)
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
+
8
0.100"
7
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
Separator
C
L C
L
6
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
.550"
MAX
.550"
MAX
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.
ACCUTEK
MICROCIRCUIT CORPORATION
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
PHONE: 978-465-6200 FAX: 978-462-3396
Email: [email protected]
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 implied. 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.