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CY14MB064Q2A-SXIT Datasheet(PDF) 1 Page - Cypress Semiconductor |
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CY14MB064Q2A-SXIT Datasheet(HTML) 1 Page - Cypress Semiconductor |
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1 / 30 page  CY14MB064Q CY14ME064Q 64-Kbit (8 K × 8) SPI nvSRAM Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 001-65018 Rev. *D Revised July 24, 2012 64-Kbit (8 K × 8) SPI nvSRAM Features ■ 64-Kbit nonvolatile static random access memory (nvSRAM) internally organized as 8 K × 8 ❐ STORE to QuantumTrap nonvolatile elements initiated automatically on power-down (AutoStore) or by using SPI instruction (Software STORE) or HSB pin (Hardware STORE) ❐ RECALL to SRAM initiated on power-up (Power-Up RECALL) or by SPI instruction (Software RECALL) ❐ Support automatic STORE on power-down with a small capacitor (except for CY14MX064Q1A) ■ High reliability ❐ Infinite read, write, and RECALL cycles ❐ 1million STORE cycles to QuantumTrap ❐ Data retention: 20 years at 85 C ■ High speed serial peripheral interface (SPI) ❐ 40-MHz clock rate SPI write and read with zero cycle delay ❐ 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 ■ 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 ❐ Average active current of 3 mA at 40 MHz operation ❐ Average standby mode current of 150 A ❐ Sleep mode current of 8 A ■ Industry standard configurations ❐ Operating voltages: • CY14MB064Q: VCC = 2.7 V to 3.6 V • CY14ME064Q: 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 Functional Overview The Cypress CY14MX064Q combines a 64 Kbit nvSRAM with a nonvolatile element in each memory cell with serial SPI interface. The memory is organized as 8 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 CY14MX064Q1A). 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. Configuration Feature CY14MX064Q1A CY14MX064Q2A CY14MX064Q3A AutoStore No Yes Yes Software STORE Yes Yes Yes Hardware STORE No No Yes Memory Data & Address Control Manufacturer ID / Product ID SPI Control Logic Write Protection Instruction decoder Power Control Block RDSN/WRSN/RDID Serial Number 8 x 8 QuantumTrap 8 K x 8 SRAM 8 K x 8 STORE SI CS SCK WP VCC VCAP RECALL READ/WRITE Status Register WRSR/RDSR/WREN STORE/RECALL/ASENB/ASDISB SO SLEEP Logic Block Diagram |
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