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CY14B256PA-SFXI
  • CY14B256PA-SFXI

CY14B256PA-SFXI

Active and preferred

CY14B256PA-SFXI is a 256-Kbit (32 K × 8) SPI nvSRAM with an integrated real-time clock. QuantumTrap nonvolatile elements STORE SRAM data on power loss using a VCAP capacitor and RECALL it on power-up, with 1,000 K STORE endurance and 20-year retention at 85°C. It operates from 2.7 V to 3.6 V over -40°C to 85°C, supports SPI clocks up to 40 MHz, and is supplied in a 16-pin SOIC package.

Infineon Technologies CY14B256PA-SFXI Product Info

16 April 2026 0

Parameters

Alarms

Y

Density

256 kBit

Frequency

40 MHz

Interfaces

SPI

Lead Ball Finish

Pure Sn

Operating Temperature range

-40 °C to 85 °C

Operating Voltage (VCCQ) max

3.6 V

Operating Voltage range

2.7 V to 3.6 V

Organization (X x Y)

32Kb x 8

Peak Reflow Temp

260 °C

Qualification

Industrial

Real Time Clock

Y

Speed

0 ns

Watchdog Timer

Y

Features

  • 256-Kbit nvSRAM, 32 K x 8
  • AutoStore on power-down
  • STORE via SPI or HSB pin
  • Power-up RECALL to SRAM
  • 40 MHz SPI read/write
  • 104 MHz fast read instructions
  • SPI mode 0 and mode 3
  • 8-byte serial number
  • Manufacturer and product ID
  • WP pin and block write protection
  • RTC alarm, watchdog, INT/SQW
  • Sleep mode current 8 µA max

Description

  • Keeps data with no firmware saves
  • AutoStore secures data on power loss
  • Choice of SPI or pin STORE control
  • RECALL restores state after reset
  • 40 MHz SPI reduces access latency
  • 104 MHz fast reads raise throughput
  • Mode 0/3 simplifies MCU interface
  • Serial number supports traceability
  • ID read enables auto configuration
  • Write protection avoids corruption
  • RTC functions reduce BOM count
  • 8 µA sleep cuts standby drain

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