CY14ME064Q
Overview
- 64-Kbit nonvolatile static random access memory (nvSRAM) internally organized as 8K × 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 Description 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 8K 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
