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參數(shù)資料
| 型號(hào)： | CY62137EV30LL-45BVXI |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | DRAM |
| 英文描述： | 2-Mbit (128K x 16) Static RAM |
| 中文描述： | 128K X 16 STANDARD SRAM, 45 ns, PBGA48 |
| 封裝： | 6 X 8 MM, 1 MM HEIGHT, LEAD FREE, VFBGA-48 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 571K |
| 代理商： | CY62137EV30LL-45BVXI |
2-Mbit (128K x 16) Static RAM
CY62137EV30
MoBL
Cypress Semiconductor Corporation
Document #: 38-05443 Rev. *B
198 Champion Court
San Jose
,
CA 95134-1709
408-943-2600
Revised February 14, 2006
Features
Very high speed: 45 ns
Wide voltage range: 2.20V–3.60V
Pin-compatible with CY62137CV30
Ultra-low standby power
—
Typical standby current: 1
μ
A
—
Maximum standby current: 7
μ
A
Ultra-low active power
— Typical active current: 2 mA @ f = 1 MHz
Easy memory expansion with CE, and OE features
Automatic power-down when deselected
CMOS for optimum speed/power
Byte power-down feature
Offered in Pb-free 48-ball VFBGA and 44-pin TSOPII
package
Functional Description
[1]
The CY62137EV30 is a high-performance CMOS static RAM
organized as 128K words by 16 bits. This device features ad-
vanced circuit design to provide ultra-low active current. This
is ideal for providing More Battery Life (MoBL
) in portable
applications such as cellular telephones. The device also has
an automatic power-down feature that significantly reduces
power consumption by 90% when addresses are not toggling.
The device can also be put into standby mode reducing power
consumption by more than 99% when deselected (CE HIGH
or both BLE and BHE are HIGH). The input/output pins (I/O
0
through I/O
15
) are placed in a high-impedance state when:
deselected (CE HIGH), outputs are disabled (OE HIGH), both
Byte High Enable and Byte Low Enable are disabled (BHE,
BLE HIGH), or during a write operation (CE LOW and WE
LOW).
Writing to the device is accomplished by asserting Chip En-
able (CE) and Write Enable (WE) inputs LOW. If Byte Low
Enable (BLE) is LOW, then data from I/O pins (I/O
0
through
I/O
7
), is written into the location specified on the address pins
(A
0
through A
16
). If Byte High Enable (BHE) is LOW, then data
from I/O pins (I/O
8
through I/O
15
) is written into the location
specified on the address pins (A
0
through A
16
).
Reading from the device is accomplished by asserting Chip
Enable (CE) and Output Enable (OE) LOW while forcing the
Write Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW,
then data from the memory location specified by the address
pins will appear on I/O
0
to I/O
7
. If Byte High Enable (BHE) is
LOW, then data from memory will appear on I/O
8
to I/O
15
. See
the truth table at the back of this data sheet for a complete
description of read and write modes.
The CY62137EV30 is available in 48-ball VFBGA and 44-pin
TSOPII packages.
Note:
1. For best practice recommendations, please refer to the Cypress application note “System Design Guidelines” on http://www.cypress.com.
Logic Block Diagram
128K x 16
RAM Array
I/O
0
– I/O
7
R
A
8
A
7
A
6
A
5
A
4
A
3
A
2
A
1
COLUMN DECODER
A
1
A
1
A
1
A
1
A
1
S
DATA IN DRIVERS
OE
BLE
I/O
8
– I/O
15
CE
WE
BHE
A
1
A
0
A
9
Power
-
Down
Circuit
BHE
BLE
CE
A
10
[+] Feedback
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| CY62137EV30LL-45ZSXI | 2-Mbit (128K x 16) Static RAM |
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| CY62137FV30LL-45BVXI | 2-Mbit (128K x 16) Static RAM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY62137EV30LL-45BVXI_12 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:2-Mbit (128 K ?? 16) Static RAM |
| CY62137EV30LL-45BVXIT | 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 SLO 3.0V SUPER LO PWR 128KX16 靜態(tài)隨機(jī)存取存儲(chǔ)器 IND RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
| CY62137EV30LL-45SXES | 制造商:Cypress Semiconductor 功能描述: |
| CY62137EV30LL-45XIKA | 制造商:Cypress Semiconductor 功能描述: |
| CY62137EV30LL-45ZSXI | 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 SLO 3.0V SUPER LO PWR 128KX16 靜態(tài)隨機(jī)存取存儲(chǔ)器 IND RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray |
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