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参数资料
| 型号： | DS2045Y-100# |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC NVSRAM 1MBIT 100NS 256BGA |
| 标准包装： | 1 |
| 格式 - 存储器： | RAM |
| 存储器类型： | NVSRAM（非易失 SRAM） |
| 存储容量： | 1M (128K x 8) |
| 速度： | 100ns |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 256-BBGA |
| 供应商设备封装： | 256-BGA（27x27） |
| 包装： | 托盘 |
Rev 4; 10/06
DS2045Y/AB Single-Piece 1Mb
Nonvolatile SRAM
General Description
Features
The DS2045 is a 1Mb reflowable nonvolatile (NV) SRAM,
o Single-Piece, Reflowable,
27mm 2
PBGA Package
which consists of a static RAM (SRAM), an NV con-
troller, and an internal rechargeable manganese lithium
(ML) battery. These components are encased in a sur-
face-mount module with a 256-ball BGA footprint.
Whenever V CC is applied to the module, it recharges the
ML battery, powers the SRAM from the external power
source, and allows the contents of the SRAM to be mod-
ified. When V CC is powered down or out of tolerance,
the controller write-protects the SRAM’s contents and
powers the SRAM from the battery. Two versions of the
DS2045 are available, which provide either a 5% or 10%
power-monitoring trip point. The DS2045 also contains a
power-supply monitor output, RST , which can be used
as a CPU supervisor for a microprocessor.
Applications
Footprint
o Internal ML Battery and Charger
o Unconditionally Write-Protects SRAM when V CC
is Out-of-Tolerance
o Automatically Switches to Battery Supply when
V CC Power Failures Occur
o Internal Power-Supply Monitor Detects Power Fail
at 5% or 10% Below Nominal V CC (5V)
o Reset Output can be used as a CPU Supervisor
for a Microprocessor
o Industrial Temperature Range (-40 ° C to +85 ° C)
o UL Recognized
RAID Systems and Servers
Industrial Controllers
Gaming
Router/Switches
POS Terminals
Data-Acquisition Systems
Fire Alarms
PLC
Pin Configuration appears at end of data sheet.
Ordering Information
PART
DS2045AB-70#
DS2045AB-100#
DS2045Y-70#
DS2045Y-100#
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
PIN-PACKAGE
256 Ball 27mm 2 BGA Module
256 Ball 27mm 2 BGA Module
256 Ball 27mm 2 BGA Module
256 Ball 27mm 2 BGA Module
SPEED (ns)
70
100
70
100
SUPPLY TOLERANCE
5
5
10
10
# Denotes a RoHS-compliant device that may include lead that is exempt under the RoHS requirements.
Typical Operating Circuit
P4.0
P3.6
P3.7
(CE0)
(WR)
(RD)
CE
WE
OE
DS2045
8051
AD0–AD7
8 BITS
DQ0–7
128k x 8
MICROPROCESSOR
NV SRAM
P1.0–7
P4.4
P2.0–7
P3.2
(INT0)
8 BITS
8 BITS
A0–7
A16
A8–15
RST
______________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
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|---|---|
| DS2045Y-100# | 功能描述:NVRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS2045Y20# | 制造商:Maxim Integrated Products 功能描述: |
| DS2045Y-70 | 功能描述:NVRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS2045Y-70# | 功能描述:NVRAM RoHS:否 制造商:Maxim Integrated 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
| DS205 | 功能描述:烙铁 Weller Inline Filter For DS1201ESD/1203A RoHS:否 制造商:Weller 产品:Soldering Stations 类型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大温度:+ 850 F 电缆类型:US Cord Included |
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