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AK63264 PDF预览

AK63264

更新时间: 2024-09-17 04:32:11
品牌 Logo 应用领域
ACCUTEK 存储
页数 文件大小 规格书
2页 107K
描述
131,072 x 32 Bit CMOS/BiCMOS Static Random Access Memory

AK63264 数据手册

 浏览型号AK63264的Datasheet PDF文件第2页 
Accutek  
Microcircuit  
Corporation  
AK632128W / AK632128Z  
131,072 x 32 Bit CMOS/BiCMOS  
Static Random Access Memory  
DESCRIPTION  
Top View  
64-Pin SIMM  
The Accutek AK632128 SRAM Module consists of fast high perfor-  
mance SRAMs mounted on a low height, 64 pin SIM or ZIP PCB.  
The module utilizes four 32 pin 128K x 8 SRAMs in 400 mil SOJ  
packages and four decoupling capacitors mounted on the front side  
of a printed circuit board.  
1
32 33  
64  
The SRAMs used have common I/O functions and single output en-  
able functions. Also, four separate chip select (CE) connections are  
used to independently enable the four bytes. The modules can be  
supplied in a variety of access time values from 7nSEC to 35nSEC  
in CMOS or BiCMOS technology.  
64-Pin ZIP  
The Accutek module is designed to have a maximum seated height  
of 0.620 inch SIM or 0.540 inch ZIP to provide for the lowest height  
off the board. Each conforms to JEDEC-standard sizes and pin-out  
configurations. Using two pins for module denisty identification,  
PD0 and PD1, minimizes interchangeability and design consider-  
ations when changing from one module size to the other in cus-  
tomer applications.  
32  
33  
64  
1
· Common I/O, single OE functions with four separate chip se-  
lects (CE)  
· Presence Detect PD0 and PD1 for identifying module density  
· Downward compatible with 32K x 32 (AK63232) and 64K x 32  
AK63264)  
· Upward compatible with 256K x 32 (AK632256), 512K x 32  
(AK632512) and 1 Meg x 32 (AK6321024)  
FEATURES  
· Operating free air temperature 00 to 700C  
· 131,072 x 32 bit organization  
· JEDEC Standard 64 pin SIM or ZIP format  
· Access times as fast as 7nSEC  
ELECTRICAL SPECIFICATIONS  
· TTL compatible inputs and outputs  
Timing diagrams and basic electrical characteristics are those of  
the standard 128K x 8 SRAMs used to construct these modules.  
Accutek’s module design allows the flexibility of selecting indus-  
try-compatible 128K x 8 SRAMs from at least seven semiconductor  
manufacturers.  
· Very low profile, 0.620 inch MAX seated height SIM Version  
· Very low profile, 0.540 inch MAX seated height ZIP Version  
· Single 5 Volt power supply - AK632128W, AK632128Z  
· Single 3.3 Volt power supply - AK63128W/3.3, AK632128Z/3.3  
PIN NOMENCLATURE  
PIN ASSIGNMENT  
FUNCTIONAL DIAGRAM  
PIN #  
1
SYMBOL  
Vss  
PIN #  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
SYMBOL  
A2  
PIN #  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
SYMBOL  
CE4  
PIN #  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
SYMBOL  
A4  
A0 - A16  
CE1 - CE4  
DQ1 - DQ32  
OE  
Address Inputs  
A0 - A16  
WE  
+
+
A0 - A16  
WE  
17  
Chip Enable  
Data In/Data Out  
Output Enable  
Presence Detect  
Power Supply  
Ground  
*
*
2
PD0  
PD1  
DQ1  
DQ9  
DQ2  
DQ10  
DQ3  
DQ11  
DQ4  
DQ12  
Vcc  
A9  
CE3  
A11  
+
+
+
+
DQ1 - DQ8  
DQ1 - DQ8  
DQ1 - DQ8  
DQ1 - DQ8  
DQ1 - DQ8  
OE  
3
DQ13  
DQ5  
DQ14  
DQ6  
DQ15  
DQ7  
DQ16  
DQ8  
Vss  
NC  
A5  
+
+
OE  
4
A16  
A12  
CE  
CE1  
5
OE  
Vcc  
PD0 - PD1  
Vcc  
6
Vss  
A13  
A0 - A16  
WE  
7
DQ25  
DQ17  
DQ26  
DQ18  
DQ27  
DQ19  
DQ28  
DQ20  
A3  
A6  
*
*
DQ9 - DQ16  
DQ17 - DQ24  
DQ25 - DQ32  
8
DQ21  
DQ29  
DQ22  
DQ30  
DQ23  
DQ31  
DQ24  
DQ32  
Vss  
OE  
Vss  
9
CE  
WE  
Write Enable  
No Connect  
10  
11  
12  
13  
14  
15  
16  
CE2  
CE3  
CE4  
+
+
+
NC  
A0 - A16  
WE  
WE  
*
*
A0  
A15  
OE  
MODULE OPTIONS  
A7  
A14  
CE  
A1  
CE2  
CE1  
Leadless SIM: AK632128W  
Leaded ZIP: AK632128Z  
A8  
A10  
A0 - A16  
WE  
*
*
PD0 = Open  
PD1 = Open  
OE  
CE  

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