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CY14C101PA_1105 PDF预览

CY14C101PA_1105

更新时间: 2024-11-24 09:41:07
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 静态存储器时钟
页数 文件大小 规格书
44页 1063K
描述
1-Mbit (128 K x 8) Serial (SPI) nvSRAM with Real Time Clock

CY14C101PA_1105 数据手册

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CY14C101PA  
CY14B101PA  
CY14E101PA  
1-Mbit (128 K × 8) Serial (SPI) nvSRAM  
with Real Time Clock  
1-Mbit (128  
K × 8) Serial (SPI) nvSRAM with Real Time Clock  
Write protection  
Hardware protection using Write Protect (WP) pin  
Features  
1-Mbit nonvolatile static random access memory (nvSRAM)  
Internally organized as 128 K × 8  
Software protection using Write Disable instruction  
Software block protection for 1/4, 1/2, or entire array  
STORE to QuantumTrap nonvolatile elements initiated  
automatically on power-down (AutoStore) or by using SPI  
instruction (Software STORE) or HSB pin (Hardware  
STORE)  
RECALLtoSRAMinitiatedonpower-up(PowerUpRECALL)  
or by SPI instruction (Software RECALL)  
Low power consumption  
Average active current of 3 mA at 40 MHz operation  
Average standby mode current of 250 µA  
Sleep mode current of 8 µA  
Industry standard configurations  
Operating voltages:  
Automatic STORE on power-down with a small capacitor  
High reliability  
• CY14C101PA : VCC = 2.4 V to 2.6 V  
• CY14B101PA : VCC = 2.7 V to 3.6 V  
• CY14E101PA : VCC = 4.5 V to 5.5 V  
Industrial temperature  
Infinite read, write, and RECALL cycles  
1 million STORE cycles to QuantumTrap  
Data retention: 20 years at 85°C  
Real time clock (RTC)  
16-pin small outline integrated circuit (SOIC) package  
Restriction of hazardous substances (RoHS) compliant  
Full-featured RTC  
Watchdog timer  
Clock alarm with programmable interrupts  
Backup power fail indication  
Overview  
The Cypress CY14X101PA combines a 1 Mbit nvSRAM[1] with a  
full-featured RTC in a monolithic integrated circuit with serial SPI  
interface. The memory is organized as 128 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).  
You can also initiate the STORE and RECALL operations  
through SPI instruction.  
Square wave output with programmable frequency (1 Hz,  
512 Hz, 4096 Hz, 32.768 kHz)  
Capacitor or battery backup for RTC  
Backup current of 0.45 µA (typical)  
40 MHz, and 104 MHz High-speed serial peripheral interface  
(SPI)  
40 MHz clock rate SPI write and read with zero cycle delay  
104 MHz clock rate SPI write and read (with special fast read  
instructions)  
Supports SPI mode 0 (0,0) and mode 3 (1,1)  
SPI access to special functions  
Nonvolatile STORE/RECALL  
8-byte serial number  
Manufacturer ID and Product ID  
Sleep mode  
VRTCcap VRTCbat  
VCC VCAP  
Logic Block Diagram  
Serial Number  
8 x 8  
Power Control  
Block  
Manufacture ID/  
Product ID  
Quantrum Trap  
128 K x 8  
SLEEP  
STORE  
RECALL  
SRAM  
128 K x 8  
RDSN/WRSN/RDID  
READ/WRITE  
SI  
CS  
Memory Data  
&
Address Control  
SPI Control Logic  
Write Protection  
Instruction decoder  
STORE/RECALL/ASENB/ASDISB  
SCK  
WP  
SO  
WRSR/RDSR/WREN  
RDRTC/WRTC  
Status Register  
Xin  
INT/SQW  
Xout  
RTC Control Logic  
Registers  
Counters  
Note  
1. This device will be referred to as nvSRAM throughout the document.  
Cypress Semiconductor Corporation  
Document #: 001-54392 Rev. *E  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised May 5, 2011  

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