位置:CY14B256P-SFXI > CY14B256P-SFXI详情
CY14B256P-SFXI中文资料
CY14B256P-SFXI数据手册规格书PDF详情
Overview
The Cypress CY14B256P combines a 256-Kbit nvSRAM[1] with a full-featured real time clock in a monolithic integrated circuit with serial SPI interface. The memory is organized as 32 K words of 8 bits each. The embedded nonvolatile elements incorporate the QuantumTrap technology, creating the world’s most reliable nonvolatile memory. The SRAM provides infinite read and write cycles, while the QuantumTrap cells provide highly reliable nonvolatile storage of data. Data transfers from SRAM to the nonvolatile elements (STORE operation) takes place automatically at power-down. 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.
Features
■ 256-Kbit nonvolatile static random access memory (nvSRAM)
❐ Internally organized as 32 K × 8
❐ STORE to QuantumTrap nonvolatile elements initiated automatically on power-down (AutoStore) or by user using HSB pin (Hardware STORE) or SPI instruction (Software STORE)
❐ RECALL to SRAM initiated on power-up (Power-Up RECALL) or by SPI instruction (Software RECALL)
❐ Automatic STORE on power-down with a small capacitor
■ High reliability
❐ Infinite read, write, and RECALL cycles
❐ 1 million STORE cycles to QuantumTrap
❐ Data retention: 20 years
■ Real time clock (RTC)
❐ Full-featured RTC
❐ Watchdog timer
❐ Clock alarm with programmable interrupts
❐ Capacitor or battery backup for RTC
❐ Backup current of 0.35 µA (typical)
■ High-speed serial peripheral interface (SPI)
❐ 40-MHz clock rate – SRAM memory access
❐ 25-MHz clock rate – RTC memory access
❐ 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
■ Low power consumption
❐ Single 3 V +20, –10 operation
❐ Average active current of 10 mA at 40 MHz operation
■ Industry standard configurations
❐ Industrial temperature
❐ 16-pin small outline integrated circuit (SOIC) package
❐ Restriction of hazardous substances (RoHS) compliant
CY14B256P-SFXI产品属性
- 类型
描述
- 型号
CY14B256P-SFXI
- 制造商
CYPRESS
- 制造商全称
Cypress Semiconductor
- 功能描述
256-Kbit(32 K x 8) Serial(SPI) nvSRAM with Real Time Clock
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
CYPRESS/赛普拉斯 |
24+ |
SOP-16 |
9600 |
原装现货,优势供应,支持实单! |
|||
CYPRESS/赛普拉斯 |
23+ |
SOP-16 |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
|||
Cypress |
22+ |
8SOIC |
9000 |
原厂渠道,现货配单 |
|||
Cypress |
8-SOIC |
5000 |
Cypress一级分销,原装原盒原包装! |
||||
CYPRESS |
23+ |
SOP-8 |
8650 |
受权代理!全新原装现货特价热卖! |
|||
CYPRESS |
25+ |
SOP-8 |
932 |
就找我吧!--邀您体验愉快问购元件! |
|||
Cypress |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
||||
Cypress |
25+ |
电联咨询 |
7800 |
公司现货,提供拆样技术支持 |
|||
Cypress |
17+ |
8-SOIC |
60000 |
保证进口原装可开17%增值税发票 |
|||
Cypress |
1207+ |
SOP8 |
300 |
一级代理,专注军工、汽车、医疗、工业、新能源、电力 |
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