CY14B512P

512-Kbit (64 K × 8) Serial (SPI) nvSRAM with Real Time Clock 512-Kbit (64 K × 8) Serial (SPI) nvSRAM with Real Time Clock Features ■ ■ 512-Kbit nonvolatile static random access memory (nvSRAM) ❐ Internally organized as 64 K × 8 ❐ STORE to QuantumTrap nonvolatile elements initiated automatically on power-down (AutoStore) or by the user using HSB pin (Hardware STORE) or SPI instruction (Software STORE) ❐ RECALL to SRAM initiated on power-up (Power-Up RECALL) or by serial peripheral interface (SPI) instruction (Software RECALL) ❐ Automatic STORE on power-down with a small capacitor High reliability ❐ ❐ ❐ 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 ■ ■ ■ Infinite read, write, and RECALL cycles 1 million STORE cycles to QuantumTrap Data retention: 20 years Overview The Cypress CY14B512P combines a 512-Kbit nvSRAM[1] with a full-featured real time clock in a monolithic integrated circuit with serial SPI interface. The memory is organized as 64 K words of 8 bits each. The embedded nonvolatile elements incorporate the QuantumTrap technology, creating the world’s mos...