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CY14B256KA - 256 Kbit (32K x 8) nvSRAM

General Description

The Cypress CY14B256KA combines a 256 Kbit nonvolatile static RAM with a full featured real time clock in a monolithic integrated circuit.

The embedded nonvolatile elements incorporate QuantumTrap technology producing the world’s most reliable nonvolatile memory.

Key Features

  • 256 Kbit nvSRAM.
  • 25 ns and 45 ns access times.
  • Internally organized as 32K x 8 (CY14B256KA).
  • Hands off automatic STORE on power down with only a small capacitor.
  • STORE to QuantumTrap nonvolatile elements is initiated by software, hardware, or AutoStore on power down.
  • RECALL to SRAM initiated on power up or by software.
  • High Reliability.
  • Infinite Read, Write, and RECALL cycles.
  • 1 Million STORE cycles to QuantumTrap.
  • 20 year data retention.

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Other Datasheets by Cypress (now Infineon)

Part Number Description
CY14B256K 256-Kbit (32K x 8) nvSRAM
CY14B256I 256-Kbit (32 K x 8) Serial (I2C) nvSRAM
CY14B256L 256-Kbit (32K x 8) nvSRAM
CY14B256LA 256 Kbit (32K x 8) nvSRAM
CY14B256P 256-Kbit (32 K X 8) Serial (SPI)

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CY14B256KA 256 Kbit (32K x 8) nvSRAM with Real Time Clock Features ■ ■ 256 Kbit nvSRAM ❐ 25 ns and 45 ns access times ❐ Internally organized as 32K x 8 (CY14B256KA) ❐ Hands off automatic STORE on power down with only a small capacitor ❐ STORE to QuantumTrap nonvolatile elements is initiated by software, hardware, or AutoStore on power down ❐ RECALL to SRAM initiated on power up or by software ■ High Reliability ❐ Infinite Read, Write, and RECALL cycles ❐ 1 Million STORE cycles to QuantumTrap ❐ 20 year data retention ■ Real Time Clock ❐ Full featured Real Time Clock ❐ Watchdog timer ❐ Clock alarm with programmable interrupts ❐ Capacitor or battery backup for RTC ❐ Backup current of 0.