BQ4017 2048Kx8 非易失性 SRAM，5% 电压容限

BQ4017 描述

The CMOS bq4017 is a nonvolatile 16,777,216-bit static RAM organized as 2,097,152 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 5V 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 bq4017 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

	BQ4017	BQ4017Y
Supply Voltage(V)	5	5
Memory Density(Kb)	16384	16384
Pin/Package	36DIP MODULE	36DIP MODULE
Approx. Price (US$)	71.50 | 1ku	71.50 | 1ku
Neg Voltage Tolerance(%)	5	10

BQ4017 特性

• Data retention in the absence of power
• Automatic write-protection during power-up/power-down cycles
• Conventional SRAM operation; unlimited write cycles
• 5-year minimum data retention in absence of power
• Battery internally isolated until power is applied

BQ4017 芯片订购指南

器件	状态	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
BQ4017MC-70	ACTIVE	71.50 | 1ku	DIP MODULE (MC) | 36	10

BQ4017 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
BQ4017MC-70	Pb-Free (RoHS)	Call TI	N/A for Pkg Type	BQ4017MC-70	BQ4017MC-70

BQ4017 应用技术支持与电子电路设计开发资源下载

1. BQ4017 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. PowerPADTM 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. PowerPADTM 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)

BQ4017 相关工具

名称	型号	公司	工具/软件类型
BQ4017 评估模块	BQ4017EVM	Texas Instruments	开发电路板/EVM