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參數資料
| 型號： | CY7C1049D |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | 4-Mbit (512K x 8) Static RAM |
| 中文描述： | 4兆位（為512k × 8）靜態RAM |
| 文件頁數： | 1/8頁 |
| 文件大小： | 390K |
| 代理商： | CY7C1049D |
4-Mbit (512K x 8) Static RAM
CY7C1049D
Cypress Semiconductor Corporation
Document #: 38-05474 Rev. *C
198 Champion Court
San Jose
,
CA 95134-1709
408-943-2600
Revised April 3, 2006
Features
Pin- and function-compatible with CY7C1049B
High speed
— t
AA
= 10 ns
Low active power
— I
CC
= 90 mA @ 10 ns
Low CMOS Standby power
— I
SB2
= 10 mA
2.0V Data Retention
Automatic power-down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE and OE features
Available in lead-free 36-Lead (400-Mil) Molded SOJ
package
Functional Description
[1]
The CY7C1049D is a high-performance CMOS static RAM
organized as 512K words by 8 bits. Easy memory expansion
is provided by an active LOW Chip Enable (CE), an active
LOW Output Enable (OE), and tri-state drivers. Writing to the
device is accomplished by taking Chip Enable (CE) and Write
Enable (WE) inputs LOW. Data on the eight I/O pins (I/O
0
through I/O
7
) is then written into the location specified on the
address pins (A
0
through A
18
).
Reading from the device is accomplished by taking Chip
Enable (CE) and Output Enable (OE) LOW while forcing Write
Enable (WE) HIGH. Under these conditions, the contents of
the memory location specified by the address pins will appear
on the I/O pins.
The eight input/output pins (I/O
0
through I/O
7
) are placed in a
high-impedance state when the device is deselected (CE
HIGH), the outputs are disabled (OE HIGH), or during a write
operation (CE LOW, and WE LOW).
The CY7C1049D is available in a standard 400-mil-wide
36-pin SOJ package with center power and ground (revolu-
tionary) pinout.
Note:
1. For guidelines on SRAM system design, please refer to the ‘System Design Guidelines’ Cypress application note, available on the internet at www.cypress.com.
1
A
1
A
Logic Block Diagram
Pin Configuration
A
1
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
9
A
10
COLUMN
DECODER
R
S
INPUT BUFFER
POWER
DOWN
WE
OE
I/O
0
I/O
1
I/O
2
I/O
3
512K x 8
I/O
7
I/O
6
I/O
5
I/O
4
A
0
A
1
A
1
A
1
CE
A
1
A
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
23
22
24
28
27
26
25
29
32
31
30
Top View
SOJ
33
36
35
34
16
17
21
20
GND
I/O
2
I/O3
A
1
A
2
A
3
A
4
CE
A
5
A
6
A
7
A
8
A
9
WE
V
CC
I/O
5
I/O
4
A
18
A
17
A
16
A
15
OE
I/O
7
I/O
6
A
12
A
11
A
14
A
13
A
0
I/O
0
I/O
1
V
CC
A
1
18
19
GND
A
10
NC
NC
Selection Guide
-10
10
90
10
Unit
ns
mA
mA
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
[+] Feedback
相關PDF資料 |
PDF描述 |
|---|---|
| CY7C1049D-10VXI | 4-Mbit (512K x 8) Static RAM |
| CY7C1049L-20VI | Plastic Connector Backshell; Enclosure Material:Plastic; Approval Bodies:UL, CSA; Enclosure Color:Beige; Leaded Process Compatible:No; No. of Positions:26; Peak Reflow Compatible (260 C):No RoHS Compliant: No |
| CY7C1049AV33-10 | 256K x 16 Static RAM |
| CY7C1049AV33-12 | 256K x 16 Static RAM |
| CY7C1049 | D-Subminiature Connector; Gender:Female; No. of Contacts:100; Contact Termination:IDC; D Sub Shell Size:DB100; Body Material:Steel; Leaded Process Compatible:Yes; Mounting Type:PC Board; Peak Reflow Compatible (260 C):No RoHS Compliant: Yes |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CY7C1049D10VXI | 制造商:Cypress Semiconductor 功能描述: |
| CY7C1049D-10VXI | 功能描述:靜態隨機存取存儲器 4M FAST ASYNC HI SPD IND RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C1049D-10VXI | 制造商:Cypress Semiconductor 功能描述:IC SRAM 4MBIT PARALLEL 10NS SOJ-36 制造商:Cypress Semiconductor 功能描述:IC, SRAM, 4MBIT, PARALLEL, 10NS, SOJ-36 |
| CY7C1049D-10VXIT | 功能描述:靜態隨機存取存儲器 4M FAST ASYNC HI SPD IND RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY7C1049DV33-10VXI | 功能描述:靜態隨機存取存儲器 4M FAST ASYNC HI SPD IND RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
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