BQ4015 512Kx8 非易失性 SRAM,5% 电压容限

BQ4015 描述

The CMOS bq4015/Y/LY is a nonvolatile 4,194,304-bit static RAM organized as 524,288 words by 8 bits. The integral control circuitry and lithium energy source provide reliable nonvolatility coupled with the unlimited write cycles of standard SRAM. The control circuitry constantly monitors the single supply for an out-of-tolerance condition. When VCC falls out of tolerance, the SRAM is unconditionally write-protected to prevent an inadvertent write operation. At this time the integral energy source is switched on to sustain the memory until after VCC returns valid. The bq4015/Y/LY uses extremely low standby current CMOS SRAMs, coupled with small lithium coin cells to provide nonvolatility without long write-cycle times and the write-cycle limitations associated with EEPROM

BQ4015 BQ4015Y BQ4015LY
Supply Voltage(V) 5   3.3   5  
Memory Density(Kb) 4096   4096   4096  
Pin/Package 32DIP MODULE   32DIP MODULE   32DIP MODULE  
Approx. Price (US$) 30.65 | 1ku   23.60 | 1ku   30.65 | 1ku  
Neg Voltage Tolerance(%) 5   10   10
BQ4015 特性
BQ4015 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
BQ4015MA-70N ACTIVE -40 to 85 23.60 | 1ku DIP MODULE (MA) | 32 12  
BQ4015 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
BQ4015MA-70N Pb-Free (RoHS)  Call TI  N/A for Pkg Type BQ4015MA-70N BQ4015MA-70N
BQ4015 应用技术支持与电子电路设计开发资源下载
  1. BQ4015 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器NVSRAM(非易失性 SRAM)产品选型与价格 . xls
  3. PowerPAD™ Thermally Enhanced Package   (PDF  1040 KB)
  4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
  5. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  6. PowerPAD™ Made Easy (PDF 57 KB)
  7. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)
BQ4015 相关工具
名称 型号 公司 工具/软件类型
BQ4015 评估模块 BQ4015EVM Texas Instruments 开发电路板/EVM