AK616256D_13 [ACCUTEK]

Static Ran dom Ac cess Memory; 冉静DOM交流塞斯记忆
AK616256D_13
型号: AK616256D_13
厂家: ACCUTEK MICROCIRCUIT CORPORATION    ACCUTEK MICROCIRCUIT CORPORATION
描述:

Static Ran dom Ac cess Memory
冉静DOM交流塞斯记忆

文件: 总2页 (文件大小:740K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
AK616256D  
262,144 x 16 Bit CMOS/BiCMOS  
Static Random Access Memory  
ACCUTEK  
DESCRIPTION  
The Accutek AK616256D SRAM Module consists of four fast high  
performance SRAMs mounted on a low profile 48 pin DIP Board.  
The module utilizes four 28 pin 256K x 4 SRAMs in SOJ packages  
and four decoupling capacitors mounted on a printed circuit board.  
The SRAMs used have common I/O functions and single output en-  
able functions. Also, four separate chip select (CS) connections are  
used to independently enable the four chips. The modules can be  
supplied in a variety of access time values from 12nSEC to 45nSEC  
in CMOS or BiCMOS technology.  
The Accutek module is designed to have a maximum seated height  
of 0.230 inch to provide for the lowest height off the board. Each  
conforms to JEDEC standard sizes and pin-out configurations.  
FEATURES  
ELECTRICAL SPECIFICATIONS  
262,144 x 16 bit organization  
Timing diagrams and basic electrical characteristics are those of  
the standard 256K x 4 SRAMs used to construct these modules.  
Accutek's module design allows the flexibility of selecting industry-  
compatible 256K x 4 SRAMs from several semiconductor  
manufactrurers.  
JEDEC Standardized 48 Pin DIP  
Common I/O with four separate chip selects (CS)  
Low height 0.230 inch DIP maximum  
Fast access times range from 12 nSEC BiCMOS to 45nSEC  
CMOS  
TTL-compatible inputs and outputs  
Single 5 volt power supply - AK616256D  
Single 3.3 volt power supply - AK616256D-3.3  
0 0  
Operating free air temperature 0 C to 70 C  
PIN NOMENCLATURE  
PIN ASSIGNMENTA16  
A0 - A17  
CS1 - CS4  
DQ0 - DQ15  
WEL - WEU  
Vcc  
Address Inputs  
Chip Select  
Data In/Date Out  
Write Enable  
5v Supply  
PIN #  
1
SYMBOL  
GND  
NC  
PIN #  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
SYMBOL  
A9  
PIN #  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
SYMBOL  
GND  
NC  
PIN #  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
SYMBOL  
A8  
2
A10  
A7  
3
A0  
A11  
A17  
A6  
4
A1  
A12  
A16  
A5  
5
A2  
A13  
A15  
A4  
6
WEL  
CS2  
D4  
WEU  
CS4  
D12  
A14  
A3  
7
CS3  
D11  
CS1  
D3  
8
Vss  
Ground  
9
D5  
D13  
D10  
D2  
NC  
No Connect  
10  
11  
12  
D6  
D14  
D9  
D1  
D7  
D15  
D8  
D0  
GND  
Vcc  
Vcc  
Vcc  
MODULE OPTIONS  
EXAMPLES  
DIP: AK616256D  
AK616256D-12  
256K x 16, 12 nSEC SRAM Module, DIP  
AK616256D-15  
256K x 16, 15nSEC SRAM Module, DIP  
FUNCTIONAL DIAGRAM  
MECHANICAL DIMENSIONS  
+0.025"  
-0.025"  
2.400"  
+0.010"  
-0.010"  
0.900"  
PIN#1  
MAX  
0.230"  
+0.010"  
-0.010"  
0.160"  
+0.005"  
-0.005"  
+0.001"  
-0.001"  
0.100"  
0.020"  
1
2 3 4 5 6 7 8  
Position  
ORDER INFORMATION  
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)  
PART NUMBER CODING INTERPRETATION  
1
2
3
4
5
6
7 8  
Position  
1
Product  
AK  
=
Accutek Memory  
2
Type  
Special Designation  
4
5
6
= Dynamic RAM  
= CMOS Dynamic RAM  
= Static RAM  
P = Page Mode  
N = Nibble Mode  
K = Static Column Mode  
W = Write Per Bit Mode  
V = Video Ram  
3
Organization/Word Width  
1 = b y 1 16 = by 16  
4 = by 4 32 = by 32  
8 = by 8 36 = by 36  
9 = by 9  
Separator  
0 0  
= Commercial 0 C to +70 C  
-
M = Military Equivalent Screened  
0 0  
(-55 C to +125 C)  
4
Size/Bits Depth  
I
= Industrial Temperature Tested  
64  
256  
1024 = 1 MEG  
=
64K  
4096  
8192  
=
=
=
4 MEG  
8 MEG  
16 MEG  
0 0  
(-45 C to +85 C)  
=
256K  
X = Burned In  
16384  
8
Speed (first two significant digits)  
DRAMS SRAMS  
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.  
50  
60  
70  
=
=
=
50 nS  
60 nS  
70 nS  
8
12  
15  
=
=
=
8 nS  
12 nS  
15 nS  
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 ob-  
jectives, which are subject to change upon full characterization over the spe-  
cific operating conditions.  
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  
MICROCIRCUIT CORPORATION  

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