- 您现在的位置：买卖IC网 > Sheet目录322 > DS2045L-100# (Maxim Integrated)IC NVSRAM 1MBIT 100NS 256BGA
DS2045L 3.3V Single-Piece 1Mb
Nonvolatile SRAM
Recommended Reflow Temperature Profile
Applications Information
PROFILE FEATURE
Average ramp-up rate
(T L to T P )
Preheat
- Temperature min (T Smin )
- Temperature max (T Smax )
- Time (min to max) (ts)
T Smax to T L
- Ramp-up rate
Time maintained above:
- Temperature (T L )
- Time (t L )
Peak temperature (T P )
Time within 5 ° C of actual peak
temperature (T P )
Ramp-down rate
Time 25 ° C to peak temperature
Sn-Pb EUTECTIC
ASSEMBLY
3 ° C/second max
100 ° C
150 ° C
60 to 120 seconds
183 ° C
60 to 150 seconds
225 +0/-5 ° C
10 to 30 seconds
6 ° C/second max
6 minutes max
Power-Supply Decoupling
To achieve the best results when using the DS2045L,
decouple the power supply with a 0.1μF capacitor. Use
a high-quality, ceramic surface-mount capacitor if pos-
sible. Surface-mount components minimize lead induc-
tance, which improves performance, while ceramic
capacitors have adequately high frequency response
for decoupling applications.
Using the Open-Drain RST Output
The RST output is open drain, and therefore requires a
pullup resistor to realize a high logic output level. Pullup
resistor values between 1k ? and 10k ? are typical.
Battery Charging/Lifetime
The DS2045L charges an ML battery to maximum
capacity in approximately 96 hours of operation when
V CC is greater than V TP . Once the battery is charged,
its lifetime depends primarily on the V CC duty cycle.
The DS2045L can maintain data from a single, initial
charge for up to 16 weeks. Once recharged, this deep-
discharge cycle can be repeated up to 20 times, pro-
ducing a worst-case service life of 6 years. More typical
Note: All temperatures refer to top side of the package, mea-
sured on the package body surface.
duty cycles are of shorter duration, enabling the
DS2045L to be charged hundreds of times, therefore
extending the service life well beyond 6 years.
Recommended Cleaning Procedures
The DS2045L may be cleaned using aqueous-based
cleaning solutions. No special precautions are needed
when cleaning boards containing a DS2045L module.
Removal of the topside label violates the environmen-
tal integrity of the package and voids the warranty of
the product.
____________________________________________________________________
11
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
DS2045W-100#
IC NVSRAM 1MBIT 100NS 256BGA
DS2045Y-70#
IC NVSRAM 1MBIT 70NS 256BGA
DS2050W-100#
IC NVSRAM 4MBIT 100NS 256BGA
DS2065W-100#
IC NVSRAM 8MBIT 100NS 256BGA
DS2070W-100#
IC NVSRAM 16MBIT 100NS 256BGA
DS2227-070
IC NVSRAM 4MBIT 70NS 72SIMM
DS2423D/T&R
IC SRAM 4KBIT 6FCHIP
DS2430AP+T&R
IC EEPROM 256BIT 6TSOC
相关代理商/技术参数
DS2045W
制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3.3V Single-Piece 1Mb Nonvolatile SRAM
DS2045W-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
DS2045W-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
DS2045Y
制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Single-Piece 1Mb Nonvolatile SRAM
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
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