參數(shù)資料
型號(hào): CY7C1049B-12VC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 512K x 8 Static RAM
中文描述: 512K X 8 STANDARD SRAM, 12 ns, PDSO36
封裝: 0.400 INCH, SOJ-36
文件頁數(shù): 1/10頁
文件大?。?/td> 132K
代理商: CY7C1049B-12VC
512K x 8 Static RAM
CY7C1049B
Cypress Semiconductor Corporation
Document #: 38-05169 Rev. *A
3901 North First Street
San Jose
CA 95134
Revised September 13, 2002
408-943-2600
049B
Features
High speed
—t
AA
= 12 ns
Low active power
—1320 mW (max.)
Low CMOS standby power (Commercial L version)
—2.75 mW (max.)
2.0V Data Retention (400
μ
W at 2.0V retention)
Automatic power-down when deselected
TTL-compatible inputs and outputs
Easy memory expansion with CE and OE features
Functional Description
[1]
The CY7C1049B is a high-performance CMOS static RAM or-
ganized as 524,288 words by 8 bits. Easy memory expansion
Logic Block Diagram
is provided by an active LOW Chip Enable (CE), an active
LOW Output Enable (OE), and three-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 En-
able (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 CY7C1049B is available in a standard 400-mil-wide
36-pin SOJ package with center power and ground (revolu-
tionary) pinout.
Pin Configuration
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
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
ARRAY
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
7C1049B-12 7C1049B-15 7C1049B-17 7C1049B-20
12
15
240
220
8
8
-
-
-
-
7C1049B-25
25
180
8
0.5
9
Maximum Access Time (ns)
Maximum Operating Current (mA)
Maximum CMOS Standby
Current (mA)
17
195
8
0.5
-
20
185
8
0.5
9
Com
l
Com
l/Ind
l L
Ind
l
相關(guān)PDF資料
PDF描述
CY7C1049B-15VC 512K x 8 Static RAM
CY7C1049B-15VI 512K x 8 Static RAM
CY7C1049B-17VC 512K x 8 Static RAM
CY7C1049BL-25VC 512K x 8 Static RAM
CY7C1049BL-25VI 512K x 8 Static RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY7C1049B-15VC 功能描述:IC SRAM 4MBIT 15NS 36SOJ RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:16M(2M x 8,1M x 16) 速度:70ns 接口:并聯(lián) 電源電壓:2.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP(0.724",18.40mm 寬) 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤
CY7C1049B-15VXC 功能描述:IC SRAM 4MBIT 15NS 36SOJ RoHS:是 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 格式 - 存儲(chǔ)器:RAM 存儲(chǔ)器類型:移動(dòng) SDRAM 存儲(chǔ)容量:256M(8Mx32) 速度:133MHz 接口:并聯(lián) 電源電壓:1.7 V ~ 1.95 V 工作溫度:-40°C ~ 85°C 封裝/外殼:90-VFBGA 供應(yīng)商設(shè)備封裝:90-VFBGA(8x13) 包裝:帶卷 (TR) 其它名稱:557-1327-2
CY7C1049B-17VC 功能描述:IC SRAM 4MBIT 17NS 36SOJ RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:16M(2M x 8,1M x 16) 速度:70ns 接口:并聯(lián) 電源電壓:2.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP(0.724",18.40mm 寬) 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤
CY7C1049B-1XW14 制造商:Cypress Semiconductor 功能描述:
CY7C1049B-20VC 功能描述:IC SRAM 4MBIT 20NS 36SOJ RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:16M(2M x 8,1M x 16) 速度:70ns 接口:并聯(lián) 電源電壓:2.65 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-TFSOP(0.724",18.40mm 寬) 供應(yīng)商設(shè)備封裝:48-TSOP 包裝:托盤