AK68512D_09 [ACCUTEK]
Static Random Access Memory; 静态随机存取存储器
| 型号： | AK68512D_09 |
| 厂家： | 
ACCUTEK MICROCIRCUIT CORPORATION |
| 描述： | Static Random Access Memory |
| 文件： | 总2页 (文件大小：185K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AK68512D
524,288 x 8 Bit CMOS
Static Random Access Memory
ACCUTEK
MICROCIRCUIT CORPORATION
DESCRIPTION
The Accutek AK68512D-1C high density memory module is a static
random access memory organized in 512K x 8 bit words. The as-
sembly consists of one medium speed 512K x 8 SRAM in a TSOP
package. The module is supplied in a 600 mil wide, 32 pin DIP (Dual
In-Line Package) configuration. This pinout is completely compati-
ble with industry standard monolithic designs. These modules are
intended for use in applications where limited board space dictates
compact module designs.
The operation of the AK68512D is identical to standard monolithic 8
bit word wide SRAMs.
The AK68512D offers the features of low power and medium speed
by using CMOS devices and makes high density mounting possible
with no surface mount technology.
FEATURES
· 524,288 x 8 bit organization
ELECTRICAL SPECIFICATIONS
· Fast access time: 55 - 70 nSEC
Timing diagrams and basic electrical characteristics are those of
the standard 512K x 8 SRAMs used to construct these modules.
Accutek’s module design allows the flexibility of selecting indus-
try-compatible 512K x 8 SRAMs from any of a number of semicon-
ductor manufacturers.
· Completely static RAM, no clock or timing strobe required
· Inputs and outputs TTL compatible
· Conventional 600 mil wide SIP package with industry
compatible pinout
· Single 5 volt power supply - AK68512D-1C
· Single 3.3 volt power supply - AK68512D-1C/3.3
· Operating free air temperature 00 to 700C
PIN NOMENCLATURE
PIN ASSIGNMENT
FUNCTIONAL DIAGRAM
DQ1 - DQ8
A0 - A18
CE
Data In/Data Out
Adress Inputs
Chip Enable
Write Enable
5v Supply
A18
A16
A14
A12
A7
Vcc
A15
A17
WE
A13
A8
WE
Vcc
Vss
Ground
A6
A5
A9
OE
Output Enable
A4
A11
OE
A3
A2
A10
CE
TIMING OPTIONS
A1
A0
DQ8
DQ7
DQ6
DQ5
DQ4
55 nSEC Access Time
70 nSEC Access Time
DQ1
DQ2
DQ3
Vss
0.22uF CAPACITOR
ORDERING INFORMATION
MECHANICAL DIMENSIONS
PART NUMBER CODING INTERPRETATION
5
Inches
1
2
3
4
6
7
8
Position
1
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
32 = 32K
64 = 64K
128 = 128K
256 = 256K
512 = 512K
1024 = 1 MEG
4096 = 4 MEG
8192 = 8 MEG
16384 = 16 MEG
5
6
7
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 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)
SRAMS
DRAMS
50
60
70
80
=
=
=
=
50 nS
60 nS
70 nS
80 nS
8
12
55
70
=
=
=
=
8 nS
12 nS
55 nS
70 nS
The numbers and coding on this page do not include all variations avail-
able but are show as examples of the most widely used variations.
Contact Accutek if other information is required.
EXAMPLES:
AK68512D1C-70
512K x 8, 70 nSEC SRAM Module, DIP Configuration
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.
5 NEW PASTURE ROAD
NEWBURYPORT, MA 01950-4040
PHONE: 978-465-6200 FAX: 978-462-3396
ACCUTEK
MICROCIRCUIT CORPORATION
Email: sales@accutekmicro.com
Internet: www.accutekmicro.com
相关型号：
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