Skip to main content
Log in
Infineon Technologies CY14B101PA-SFXI — Discrete Semiconductors

Infineon CY14B101PA-SFXI NVSRAM, 1Mbit SPI 40MHz

MPNCY14B101PA-SFXI
End of Life

Infineon CY14B101PA-SFXI, 1Mbit NVSRAM, SPI interface, 40 MHz clock, 128K x 8 organization, 2.7V-3.6V supply, -40°C to 85°C, 16-SOIC package, Tube.

$13.97Ref. price · indicative, final on quote
Infineon Technologies CY14B101PA-SFXI datasheet (PDF)
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY14B101PA-SFXI specifications
ParameterValue
Memory typeNon-Volatile
MountingSurface Mount
Supply voltage2.7V ~ 3.6V
Clock frequency40 MHz
Memory interfaceSPI
Operating temperature-40°C ~ 85°C (TA)
PackageTube
TechnologyNVSRAM (Non-Volatile SRAM)
Memory size1Mbit
Memory formatNVSRAM
Case16-SOIC (0.295\", 7.50mm Width)
Memory organization128K x 8

Product details

NVSRAM with instant non-volatility

The Infineon CY14B101PA-SFXI is a 1 Mbit NVSRAM (Non-Volatile SRAM) organized as 128K x 8, accessed through a 40 MHz SPI bus. It combines the fast read/write cycle of an SRAM — no write-cycle delays or wear-out — with automatic store-to-Flash on power-down, so data survives a supply loss without a battery or supercap. The 2.7 V to 3.6 V supply and -40°C to 85°C industrial temperature range suit it for factory automation, motor drives, and outdoor telecom where parameter logging or configuration data must persist across power cycles.

Frequently asked questions

What is an NVSRAM?

NVSRAM (Non-Volatile SRAM) is a memory that combines the fast, unlimited read/write cycles of an SRAM with automatic data retention on power loss — no battery, supercap, or EEPROM wear-leveling needed. The CY14B101PA-SFXI uses an internal store-to-Flash operation on supply dropout.

What are the equivalent replacements for CY14B101PA-SFXI?

The FM25VN10-G from Cypress (now Infineon) is a functional alternative: 1 Mbit non-volatile memory with SPI at 40 MHz, same 128K x 8 organization and -40°C to 85°C range, but using FRAM technology instead of NVSRAM. FRAM offers similar write speed and endurance but with a different internal architecture — verify timing and supply voltage (2.0 V for FM25VN10-G) against your design.

How to test or program CY14B101PA-SFXI?

This part is programmed and read via standard SPI commands at up to 40 MHz. Most production programmers (e.g., Dataman, Xeltek) support the NVSRAM family. For in-circuit testing, a standard SOIC-16 test clip connects to the SPI bus — no special voltage sequence required.