CY14B512I
Overview
- 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 using I2C command (Software STORE) or HSB pin (Hardware STORE) ❐ RECALL to SRAM initiated on power-up (Power-Up RECALL) or by I2C command (Software RECALL) ❐ Automatic STORE on power-down with a small capacitor
- High reliability ❐ Infinite read, write, and RECALL cycles ❐ 1 million STORE cycles to QuantumTrap ❐ Data retention: 20 years at 85 °C
- Real Time Clock (RTC) ❐ Full-featured RTC ❐ Watchdog timer ❐ Clock alarm with programmable interrupts ❐ Backup power fail indication ❐ 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) 2
- High-speed I C 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 I2C access to special functions ❐ Nonvolatile STORE/RECALL ❐ 8-byte serial number ❐ Manufacturer ID and Product ID ❐ Sleep mode Low power consumption ❐ Average active current of 1 mA at 3.4 MHz operation ❐ Average standby mode current of 250 µA ❐ Sleep mode current of 8 µA Industry standard configurations ❐ Operating voltages:
- CY14C512I : VCC = 2.4 V to 2.6 V
- CY14B512I : VCC = 2.7 V to 3.6 V
- CY14E512I : VCC = 4.5 V to 5.5 V ❐ Industrial temperature ❐ 16-pin small outline integrated circuit (SOIC) package ❐ Restriction of hazardous substances (RoHS) compliant *
- Overview The Cypre
