ACCUTEK AK5916384GP-60 16,777,216 word by 9 bit cmos dynamic random access memory Datasheet

Accutek
Microcircuit
Corporation
AK5916384S / AK5916384G
16,777,216 Word by 9 Bit CMOS
Dynamic Random Access Memory
DESCRIPTION
Front View
The Accutek AK5916384S high density memory module is a CMOS
random access memory organized in 16 Meg x 9 bit words. The assembly consists of nine 16 Meg x 1 DRAMs in plastic SOJ packages
mounted on the front side of a printed circuit board in 30 pad SIM
(leadless) or 30 pin SIP (leaded) configuration. The module is only
0.8 inch high (same height as standard 1 Meg modules), making it
ideally suited for applications with low height restrictions.
The operation of the AK5916384 is identical to nine 16 Meg x 1
dynamic RAMs. For the lower eight bits data input is tied to data
output and brought out separately for each device, with common
RAS, CAS and WE control. This common I/O feature dictates the
use of early-write cycles to prevent contention of D and Q. 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. For the ninth bit, the data input (D9) and the data output
(Q9) pins are brought out separately and controlled by a separate
PCAS for that bit. Bit nine is generally used for parity.
FEATURES
30-Pin SIM
30
1
30-Pin SIP
1
· Downward compatible with AK594096, AK591024, and
AK59256
· TTL-Compatible Inputs and Outputs
· RAS-Only Refresh
· 16,777,216 x 9 bit organization
· 4096 Cycle Refresh every 64mSEC
· Optional 30 Pad leadless SIM (Single In-Line Module) or 30
Pin leaded SIP (Single In-Line Package)
· JEDEC standard pinout
· Power:
4.45 Watt Max Active (60 nS)
3.96 Watt Max Active (70 nS)
49.5 mWatt Max Standby
· Common CAS and RAS control for the lower eight bits
· Operating free air temperature 0oC to 70oC
· Separate PCAS control for D9 and Q9
· Fast Page Mode
· CAS-before-RAS refresh
PIN NOMENCLATURE
DQ1 - DQ8
Data In/Data Out
· 8 Bit version (without parity bit) also available
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
PIN #
SYMBOL
PIN #
SYMBOL
1
Vcc
16
DQ5
2
CAS
17
A8
D9
Data In
Q9
Data Out
3
DQ1
18
A9
A0 - A11
Address Inputs
4
A0
19
A10
CAS, PCAS
Column Address Strobe
DQ6
RAS
5
A1
20
6
DQ2
21
WE
Row Address Strobe
7
A2
22
Vss
WE
Write Enable
8
A3
23
DQ7
Vcc
5v Supply
Vss
NC
9
Vss
24
A11
10
DQ3
25
DQ8
Ground
11
A4
26
Q9
No Connect
12
A5
27
RAS
13
DQ4
28
PCAS
14
A6
29
D9
15
A7
30
Vcc
MODULE OPTIONS
Leadless SIM: AK5916384S
Leaded SIP: AK5916384G
MECHANICAL DIMENSIONS
ORDERING INFORMATION
Inches
PART NUMBER CODING INTERPRETATION
Position
1
2
3
4
5
6
7
8
1
0.815
0.785
0.425
0.375
.100
.060
0.325
0.275
0.815
0.785
0.100
TYP
1
1
0.100
TYP
3.525
3.475
3.100
3.090
0.024
0.016
30
0.200
MAX
0.053
0.047
Product
AK = Accutek Memory
2 Type
4 = Dynamic RAM
5 = CMOS Dynamic RAM
6 = Static RAM
3 Organization/Word Width
1 = by 1 16 = by 16
4 = by 4 32 = by 32
8 = by 8 36 = by 36
9 = by 9
4 Size/Bits Depth
64 = 64K
4096 = 4 MEG
256 = 256K
8192 = 8 MEG
1024 = 1 MEG 16384 = 16 MEG
5 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)
6 Special Designation
P = Page Mode
N = Nibble Mode
K = Static Column Mode
W = Write Per Bit Mode
V = Video Ram
7 Separator
- = Commercial 00C to +700C
M = Military Equivalent Screened
(-550C to +1250C)
I = Industrial Temperature Tested
(-450C to +850C)
X = Burned In
8 Speed (first two significant digits)
DRAMS
SRAMS
60 = 60 nS
8 =
8 nS
70 = 70 nS
12 = 12 nS
80 = 80 nS
15 = 15 nS
The numbers and coding on this page do not include all variations available but are shown as examples of the most widely
used variations. Contact Accutek if other information is required.
0.100
TYP
EXAMPLES:
AK5916384SP-70
16 Meg x 9, 70 nSEC, Leadless SIM, Fast Page Mode
AK5916384GP-60
16 Meg x 9, 60 nSEC, Leaded SIP, Fast Page Mode
ACCUTEK MICROCIRCUIT CORPORATION
BUSINESS CENTER at NEWBURYPORT
2 NEW PASTURE ROAD, SUITE 1
NEWBURYPORT, MA 01950-4054
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.
Similar pages