CY14B256Q1/CY14B256Q2/CY14B256Q3, 256-KBIT (32K X 8) SERIAL (SPI) NVSRAM | 赛普拉斯半导体
CY14B256Q1/CY14B256Q2/CY14B256Q3, 256-KBIT (32K X 8) SERIAL (SPI) NVSRAM
- 256-Kbit nonvolatile static random access memory (nvSRAM)
- Internally organized as 32 K × 8
- 在断电时自动启动 (AutoStore) 或者由用户使用 HSB 引脚（硬件 STORE）或 SPI 指令（软件 STORE）启动数据存储至量子井非易失性组件
- 在通电时启动（通电 RECALL）或者由 SPI 指令（软件 RECALL）启动数据恢复至 SRAM
- Automatic STORE on power-down with a small capacitor (except for CY14B256Q1)
- 1 百万次存储至量子井的循环
- 数据保留时间：20 年
- High-speed serial peripheral interface (SPI)
- 40-MHz clock rate
- Supports SPI mode 0 (0,0) and mode 3 (1,1)
- Write protection
- Hardware protection using Write Protect (WP) pin
- Software protection using Write Disable instruction
- Software block protection for 1/4,1/2, or entire array
- Single 3 V +20%, –10% operation
- Average active current of 10 mA at 40-MHz operation
- Industry standard configurations
- CY14B256Q1 has identical pin configuration to industry standard 8-pin NV memory
- 8-pin dual flat no-lead (DFN) package and 16-pin small outline integrated circuit (SOIC) package
- Restriction of hazardous substances (RoHS) compliant
The Cypress CY14B256Q1/CY14B256Q2/CY14B256Q3 combines a 256-Kbit nvSRAM with a nonvolatile element in each memory cell with serial SPI interface. 该存储器采用“32 K 字，每字 32 位”的组织方式。嵌入式非易失性组件通过采用量子井技术，打造出世界上最可靠的非易失性存储器。SRAM 能够实现无限次读写循环，而量子井单元则能够提供高度可靠的非易失性数据存储空间。Data transfers from SRAM to the nonvolatile elements (STORE operation) takes place automatically at power-down (except for CY14B256Q1). On power-up, data is restored to the SRAM from the nonvolatile memory (RECALL operation). The STORE and RECALL operations can also be initiated by the user through SPI instruction.
Dear valued customer,
Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you.
Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.
For the full version of this message, please download the PDF version.