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参数资料
| 型号： | DS2045Y-70# |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/12页 |
| 文件大小： | 0K |
| 描述： | IC NVSRAM 1MBIT 70NS 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： | 70ns |
| 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 |
DS2045Y/AB Single-Piece 1Mb
Nonvolatile SRAM
Functional Diagram
CE
V CC
V TP REF
CURRENT-LIMITING
RESISTOR
DELAY TIMING
CIRCUITRY
CHARGER
UNINTERRUPTED
POWER SUPPLY
FOR THE SRAM
V CC
CE
RST
V SW REF
OE
WE
SRAM
DQ0 – 7
REDUNDANT LOGIC
ML
CURRENT-LIMITING
RESISTOR
REDUNDANT
SERIES FET
GND
OE
WE
A0 – A16
BATTERY-CHARGING/SHORTING
PROTECTION CIRCUITRY (UL RECOGNIZED)
DS2045
Detailed Description
The DS2045 is a 1Mb (128k x 8 bits) fully static, NV
memory similar in function and organization to the
DS1245 NV SRAM, but containing a rechargeable ML
battery. The DS2045 NV SRAM constantly monitors V CC
for an out-of-tolerance condition. When such a condition
occurs, the lithium energy source is automatically
switched on and write protection is unconditionally
enabled to prevent data corruption. There is no limit to
the number of write cycles that can be executed and no
additional support circuitry is required for microproces-
sor interfacing. This device can be used in place of
SRAM, EEPROM, or flash components.
The DS2045 assembly consists of a low-power SRAM,
an ML battery, and an NV controller with a battery
charger, integrated on a standard 256-ball, 27mm 2
BGA substrate. Unlike other surface-mount NV memory
modules that require the battery to be removable for
soldering, the internal ML battery can tolerate exposure
to convection reflow soldering temperatures allowing
this single-piece component to be handled with stan-
dard BGA assembly techniques.
Two versions of the DS2045 are available that provide
either a 5% (DS2045AB) or 10% (DS2045Y) 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| 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 |
| DS2-05-07-015-JV | 制造商:IDEC CORPORATION 功能描述:OBJECT DETECTION AND MEASUREMENT LIGHT GRIDS |
| DS2-05-07-030-JV | 制造商:IDEC CORPORATION 功能描述:957501050 Light grids |
| DS2-05-07-045-JV | 制造商:IDEC CORPORATION 功能描述:957501060 Light grids |
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