AK594096BG - Accutek Microcircuit Corporation

AK594096BS / AK594096BG
4,194,304 Word by 9 Bit CMOS
Dynamic Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
Front View
DESCRIPTION
30-Pin SIM
The Accutek AK594096 high density memory module is a CMOS
random access memory organized in 4 Meg x 9 bit words. The assembly consists of two 4 Meg x 4 and one 4 Meg x 1 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
+
+
1
The operation is identical to nine 4 Meg x 1 DRAMs. For the lower
eight bits, data input is tied to data output and brought out separately
for each bit, with common RAS and CAS 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)i signal must always go low before CAS in a write cycle, Read-Write and
Read-Modify-Write operation is not possible. For the ninth bit, data
in (D9) and data out (Q9) pins are brought our separately and controlled by a separate PCAS for that bit.
· Refresh cycle 2048 cycles in 32 mSEC
· Power
1.450 Watt Max Active, 70 nSEC
1.610 Watt Max Active, 60 nSEC
16.5 mWatt Max Standy
FEATURES
· 4,194,304 x 9 bit organization
· Low Profile 30 pad (SIM) Single In-Line Memory
· Operating free air temperature 00C to 700C
· Low Profile 30 pin (SIP) Single In-Line package
· Downward compatible with AK591024 and AK59256
· JEDEC standard pinout
· Upward compatible with AK5916384
· Common CAS, RAS and WE for the lower eight bits
· Fast Page Mode and Static Column Mode versions available,
nibble mode is not possible
· CAS-before-RAS refresh
PIN NOMENCLATURE
A0 - A10
Address Inputs
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
Pin #
Symbol
Pin #
Symbol
1
Vcc
16
DQ5
A8
RAS0
Row Address Strobe
2
CAS
17
CAS
Column Address Strobe
3
DQ1
18
A9
4
A0
19
A10
WE
Write Enable
5
A1
20
DQ6
OE
Output Enable
6
DQ2
21
WE
DQ1 - DQ8
Data In/Data Out
7
A2
22
Vss
8
A3
23
DQ7
D9
Data In
9
Vss
24
NC
Q9
Data Out
10
DQ3
25
DQ8
11
A4
26
NC
RAS0
Vcc
5v Supply
12
A5
27
Vss
Ground
13
DQ4
28
NC
No Connect
14
A6
29
NC
15
A7
30
Vcc
NC
MODULE OPTIONS
A0 - A10 +
RAS +
CAS +
WE +
DQ1 +
DQ2 +
DQ3 +
DQ4 +
DQ5
DQ6
DQ7
DQ8
+
+
+
+
PCAS +
11
A0 - A10
* RAS
* CAS
* WE
* DQ1
* DQ2
* DQ3
* DQ4
OE
*
A0 - A9
* RAS
* CAS
* WE
* DQ1
* DQ2
* DQ3
* DQ4
OE
*
A0 - A11
* RAS
* CAS
* WE
Leadless SIM: AK594096BS
Leaded SIP: AK594096BG
D9 +
Q9 +
*D
Q *
EXAMPLES:
ORDERING INFORMATION
AK594096BGP-70
PART NUMBER CODING INTERPRETATION
Position
1 2 3 4 5 6 7 8
4 Meg x 9, CMOS Dynamic RAM, Leaded SIP, Page Mode, Commercial, 70 nSEC Access Time
AK594096BSP-60
1
4 Meg x 9, 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
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
7
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
Separator
4 MEG
8 MEG
16 MEG
.550"
MAX
.550"
MAX
+
1
0.100"
+
1
C
L C
L
0.100"
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
4096 =
8192 =
16384 =
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: sales@accutekmicro.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 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.