Infineon Technologies CY15V116QI-20BKXC

Overview

CY15V116QI-20BKXC from Infineon Technologies (formerly Cypress) is a 16-Mbit serial SPI F-RAM organized as 2048K × 8, operating at 1.71–1.89 V with 20 MHz max clock speed and 10¹⁵ read/write endurance. It delivers NoDelay™ writes, 151-year data retention, and integrates hardware/software write protection for industrial logging and real-time data capture applications.

For engineers reviewing the CY15V116QI-20BKXC datasheet, CY15V116QI-20BKXC pinout, CY15V116QI-20BKXC application, or CY15V116QI-20BKXC equivalent, key selection criteria include low-voltage operation (1.71–1.89 V), FBGA-24 package compatibility, SPI Mode 0/3 support, and absence of write latency in high-frequency data logging systems.

Technical Context

The CY15V116QI-20BKXC implements a ferroelectric memory array with zero write latency-data commits immediately after each byte transfer without polling. Its SPI interface supports dual modes (0 and 3), with inputs latched on SCK rising edge and outputs driven on falling edge.

It features a dedicated 256-byte special sector surviving three reflow cycles, a nonvolatile status register with WPEN control, and hardware write protection via active-low WP pin tied to internal weak pull-up. Device ID and 8-byte programmable serial number enable secure board-level identification.

Key Specifications

Pinout & Package

Package: 24-ball Fine Pitch Ball Grid Array (FBGA), 4.0 mm × 3.0 mm × 0.65 mm body, 0.5 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar nonvolatile serial memory applications.

Compared with CY15B116QI-20BKXC, the CY15V116QI-20BKXC offers tighter voltage tolerance essential for energy-harvesting systems, while the MB85RS1MT provides higher speed in smaller density but omits critical features like reflow-surviving sectors and unique IDs needed for traceability.

Availability

CY15V116QI-20BKXC is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, and medical wearable sensor hubs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant FBGA packaging.

Supply support for CY15V116QI-20BKXC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, delivering power systems, sensors, and memory solutions for industrial, automotive, and IoT applications.

The Excelon LP F-RAM product line was developed by Cypress (acquired by Infineon in 2020) to replace EEPROM and serial flash in high-endurance, low-latency nonvolatile storage applications-specifically targeting data logging, metering, and mission-critical buffering.

FAQ

Is CY15V116QI-20BKXC pin-compatible with CY15B116QI-20BKXC?

Yes, both share identical 24-ball FBGA package, pin assignments, SPI command set, and timing specifications. The only functional difference is VDD range: CY15V116QI requires 1.71–1.89 V, while CY15B116QI operates from 1.8–3.6 V. Swapping requires verifying system rail compliance.

Does the 256-byte special sector require separate addressing or commands?

No. The special sector resides at fixed address 0x1F0000–0x1F00FF and is accessed using standard READ/WRITE opcodes (0x03/0x02). Its reflow resilience is process-based-not enabled by software-and requires no configuration.

Can the serial number be rewritten multiple times, and is it protected against accidental overwrite?

Yes, the 8-byte serial number register is writable via WRITE SERIAL NUMBER (0x1F) instruction and supports unlimited writes. It is protected by the same software/hardware write protection scheme as main memory-WP pin assertion or status register lock disables writes.

What SPI modes does CY15V116QI-20BKXC support, and how is mode selection handled?

It supports SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1) only. Mode selection is automatic and determined by the host controller's SCK idle state and sampling edge-no configuration register or opcode is required.