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參數(shù)資料
| 型號(hào)： | CYM1622 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 64K x 16 Static RAM Module(64K x 16靜態(tài)RAM模塊) |
| 中文描述： | 64K的× 16靜態(tài)RAM模塊（64K的× 16靜態(tài)RAM的模塊） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 119K |
| 代理商： | CYM1622 |
64K x 16 Static RAM Module
CYM1622
Cypress Semiconductor Corporation
3901 North First Street
San Jose
CA 95134
408-943-2600
November 1988 – Revised March 1995
1CYM1622
Features
High-density 1-megabit SRAM module
High-speed CMOS SRAMs
—Access time of 15 ns
Low active power
—2.2W (max.)
SMD technology
TTL-compatible inputs and outputs
Pinout compatible with CYM1611
Low profile
—Max. height of .50 in.
Small PCB footprint
—0.68 sq. in.
Functional Description
The CYM1622 is a very high performance 1-megabit static
RAM module organized as 64K words by 16 bits. The module
is constructed using four 64K x 4 static RAMs mounted onto a
vertical substrate with pins. The pinout of this module is com-
patible with another Cypress module (CYM1611) to maximize
system flexibility.
Writing to the memory module is accomplished when the chip
select (CS) and write enable (WE) inputs are both LOW. Data
on the sixteen input/output pins (I/O
0
through I/O
15
) of the de-
vice is written into the memory location specified on the ad-
dress pins (A
0
through A
15
).
Reading the device is accomplished by taking chip select (CS)
and output enable (OE) LOW, while write enable (WE) remains
inactive or HIGH. Under these conditions, the contents of the
memory location specified on the address pins will appear on
the appropriate data input/output pins.
The input/output pins remain in a high-impedance state unless
the module is selected, outputs are enabled, and write enable
(WE) is HIGH.
Shaded areas contain preliminary information.
Logic Block Diagram
Pin Configuration
1622–1
A
0
A
15
1622–2
WE
OE
I/O
0
I/O
15
VDIP
Top View
CS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
29
28
30
31
32
33
34
35
36
40
39
38
37
27
26
25
24
23
22
21
S
I/O
0
I/O
1
I/O
2
I/O
3
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
I/O
4
I/O
5
I/O
6
I/O
7
CS
GND
A
14
V
CC
I/O
15
I/O
14
I/O
13
I/O
12
GND
NC
WE
OE
A
15
A
13
A
12
A
11
A
10
A
9
A
8
I/O
11
I/O
10
I/O
9
I/O
8
NC
64K x 4
SRAM
64K x 4
SRAM
64K x 4
SRAM
64K x 4
SRAM
Selection Guide
1622-15
15
600
80
1622-20
20
500
80
1622-25
25
400
140
1622-30
30
400
140
1622-35
35
400
140
1622-45
45
400
140
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum Standby Current (mA)
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|---|---|
| CYM1720 | 32K x 24 Static RAM Module(32K x24 靜態(tài)RAM模塊) |
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| CYM1821 | 16K x 32 Static RAM Module(16K x 32 靜態(tài)RAM模塊) |
| CYM1831 | 64K x 32 Static RAM Module |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CYM1622HV-25C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
| CYM1622HV-30C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
| CYM1622HV-35C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
| CYM1622HV-45C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
| CYM1622PV-15C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x16 SRAM Module |
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