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CY14C512J PDF预览

CY14C512J

更新时间: 2024-11-20 09:41:07
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 静态存储器
页数 文件大小 规格书
31页 1505K
描述
512-Kbit (64 K x 8) Serial (I2C) nvSRAM Infinite read, write, and RECALL cycles

CY14C512J 数据手册

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CY14C512J  
CY14B512J, CY14E512J  
512-Kbit (64 K × 8) Serial (I2C) nvSRAM  
512-Kbit (64  
K × 8) Serial (I2C) nvSRAM  
Industry standard configurations  
Operating voltages:  
Features  
512-Kbit nonvolatile static random access memory (nvSRAM)  
Internally organized as 64 K × 8  
• CY14C512J: VCC = 2.4 V to 2.6 V  
• CY14B512J: VCC = 2.7 V to 3.6 V  
STORE to QuantumTrap nonvolatile elements initiated  
automatically on power-down (AutoStore) or by using I2C  
command (SoftwareSTORE) orHSBpin(HardwareSTORE)  
• CY14E512J: VCC = 4.5 V to 5.5 V  
Industrial temperature  
8- and 16-pin small outline integrated circuit (SOIC) package  
Restriction of hazardous substances (RoHS) compliant  
RECALL to SRAM initiated on power-up (Power-Up  
RECALL) or by I2C command (Software RECALL)  
Overview  
Automatic STORE on power-down with a small capacitor  
(except for CY14X512J1)  
The Cypress CY14C512J/CY14B512J/CY14E512J combines a  
512-Kbit nvSRAM[1] with a nonvolatile element in each memory  
cell. The memory is organized as 64 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 (except for CY14X512J1). 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 I2C commands.  
High reliability  
Infinite read, write, and RECALL cycles  
1 million STORE cycles to QuantumTrap  
Data retention: 20 years at 85 C  
High speed I2C interface  
Industry standard 100 kHz and 400 kHz speed  
Fast-mode Plus: 1 MHz speed  
High speed: 3.4 MHz  
Zero cycle delay reads and writes  
Write protection  
Hardware protection using Write Protect (WP) pin  
Software block protection for one-quarter, one-half, or entire  
array  
Configuration  
Feature  
AutoStore  
CY14X512J1 CY14X512J2 CY14X512J3  
I2C access to special functions  
Nonvolatile STORE/RECALL  
8 byte serial number  
Manufacturer ID and Product ID  
Sleep mode  
No  
Yes  
No  
Yes  
Yes  
Yes  
Yes  
Software STORE  
Hardware STORE  
No  
Yes  
Slave Address pins A2, A1, A0  
A2, A1  
A2, A1, A0  
Low power consumption  
Average active current of 1 mA at 3.4 MHz operation  
Average standby mode current of 150 µA  
Sleep mode current of 8 µA  
Logic Block Diagram  
Serial Number  
8 x 8  
VCC VCAP  
Manufacture ID/  
Product ID  
Power Control  
Block  
Memory Control Register  
Command Register  
Quantrum Trap  
64 K x 8  
Sleep  
STORE  
SRAM  
64 K x 8  
Control Registers Slave  
Memory Slave  
SDA  
SCL  
A2, A1, A0  
WP  
I2C Control Logic  
Slave Address  
Decoder  
Memory  
Address and Data  
Control  
RECALL  
Note  
2
1. Serial (I C) nvSRAM is referred to as nvSRAM throughout the datasheet.  
Cypress Semiconductor Corporation  
Document #: 001-65232 Rev. *B  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised May 4, 2011  
[+] Feedback  

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