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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies CY15E016Q-SXE

Name: CY15E016Q-SXE
Brand: Infineon Technologies
SKU: CY15E016Q-SXE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY15E016Q-SXE

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: CY15E016Q-SXE.pdf

Description:: IC FRAM 16KBIT SPI 16MHZ 8SOIC

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Product details

Overview

CY15E016Q-SXE from Infineon Technologies (formerly Cypress) is a 16-Kbit (2K × 8) serial SPI automotive F-RAM nonvolatile memory IC. It functions as a drop-in hardware replacement for serial EEPROM and flash in systems requiring rapid, high-endurance writes, with 10¹³ read/write cycles, 121-year data retention, and NoDelay™ write capability at up to 16 MHz SPI clock speed. It operates across –40 °C to +125 °C and is AEC-Q100 Grade 1 qualified.

For engineers reviewing the CY15E016Q-SXE datasheet, CY15E016Q-SXE pinout, CY15E016Q-SXE application, or CY15E016Q-SXE equivalent, key selection criteria include write endurance vs. EEPROM/flash, SPI mode 0/3 compatibility, hardware/software write protection, automotive temperature compliance, and SOIC-8 package integration into space-constrained control modules.

Technical Context

The CY15E016Q-SXE implements ferroelectric memory array architecture enabling true RAM-like write behavior without erase cycles or polling. Its internal instruction decoder and status register support configurable block protection (1/4, 1/2, or full array) and dual-layer write enable control via WP pin and WREN/WRSR commands.

It operates as an SPI slave device synchronized to SCK rising edge (input latch) and falling edge (output drive), supporting both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). Addressing uses 11-bit effective address space within a 16-bit field, with upper 5 bits ignored.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory density	16 Kbit (2,048 × 8 bytes); enables compact storage of calibration tables or event logs without external buffering.
Write endurance	10¹³ cycles; supports >27,000 writes/day for 10 years - eliminates wear leveling firmware overhead.
Data retention	121 years at +85 °C; guarantees nonvolatile integrity over full automotive lifecycle without refresh.
SPI speed	Up to 16 MHz; achieves sub-μs write latency per byte - no wait states or polling required.
Operating voltage	4.5 V to 5.5 V; compatible with standard 5 V automotive power rails and legacy microcontroller I/O.
Temperature range	–40 °C to +125 °C (Automotive-E); validated for engine control units and transmission modules.
Package	8-pin SOIC (SOIC-8); surface-mount compatible with automated PCB assembly and thermal cycling reliability.

Pinout & Package

8-pin small outline integrated circuit (SOIC) package with standard footprint and gull-wing leads. RoHS-compliant, lead-free finish, JEDEC MS-012AC compliant.

Pin/Terminal	Circuit Role	Design Meaning
CS	Chip Select input	Active-low enable; places device in standby (10 μA) when HIGH; initiates all SPI transactions on falling edge.
SCK	Serial clock input	Synchronizes all I/O; rising edge latches SI data; falling edge drives SO output; supports 0–16 MHz with interrupt tolerance.
SI	Serial input	Receives opcodes, addresses, and write data; sampled on SCK rising edge; must be driven to valid logic level.
SO	Serial output	Drives read data and status register contents; tristated during HOLD or CS HIGH; transitions on SCK falling edge.
WP	Write protect input	Hardware lock for status register writes when WPEN = 1; must be tied to VDD if unused to prevent accidental protection.
HOLD	Bus hold input	Suspends ongoing SPI transaction when pulled LOW while SCK is LOW; allows host CPU to service higher-priority tasks.
VSS	Ground	Reference return path for all internal circuits; requires low-impedance connection to system ground plane.
VDD	Power supply	4.5–5.5 V supply; powers core logic and F-RAM array; internal POR ensures safe initialization.

Key Features

Feature	Design Value
NoDelay™ write	Immediate byte-level write completion at bus speed - eliminates firmware polling loops and timeout handling.
10¹³ endurance	Enables real-time logging in telematics or ADAS sensors without lifetime wear-out concerns or predictive failure algorithms.
SPI Mode 0 & 3 support	Interoperable with diverse microcontrollers including Renesas RH850, NXP S32K, and ST STM32 families without interface translation.
Configurable block protection	Software-selectable 1/4, 1/2, or full array write lock - secures critical calibration or safety-critical configuration data.
AEC-Q100 Grade 1	Qualified for under-hood applications with guaranteed operation at +125 °C ambient - meets ISO/TS 16949 production requirements.

Applications

Engine Control Unit (ECU)

Advanced Driver Assistance Systems (ADAS)

Use Scenario: Storing real-time sensor calibration offsets and fault codes during vehicle operation.

IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory interfacing directly with MCU SPI peripheral for sub-millisecond write updates.

Use Value: Eliminates flash wear-out risk from frequent recalibration writes and avoids EEPROM's 5–10 ms write latency that could miss transient events.

Use Scenario: Logging radar object tracking history and camera frame metadata for post-crash analysis.

IC Role / Device Role / Timing Role: High-speed, high-cycle-count data buffer between vision processor and CAN/FlexRay gateway.

Use Value: Supports burst writes at 16 MHz SPI without data loss during collision avoidance maneuvers where timing margins are <100 μs.

Electric Power Steering (EPS)

Body Control Module (BCM)

Use Scenario: Recording torque sensor zero-point drift compensation values across vehicle lifetime.

IC Role / Device Role / Timing Role: Automotive-grade persistent memory storing adaptive parameters updated every ignition cycle.

Use Value: Guarantees 121-year data retention at +125 °C under hood - exceeds OEM 15-year functional safety requirements.

Use Scenario: Storing user-configurable lighting profiles and door lock settings across battery disconnect events.

IC Role / Device Role / Timing Role: Low-power nonvolatile storage accessed during wake-up from deep sleep (<10 μA standby current).

Use Value: Reduces BCM quiescent current by eliminating need for backup battery or capacitor-based SRAM retention.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
FM25V01-G	1-Mbit F-RAM, 3.3 V only, SPI up to 40 MHz, 10¹⁴ endurance, SOIC-8	Higher density and speed but incompatible 3.3 V supply; not automotive-qualified	Select only for 3.3 V industrial systems requiring >16 Kbit capacity and faster throughput.
AT25DF021A-SSH-T	2-Mbit serial flash, 2.7–3.6 V, 80 MHz DTR, 100k write cycles, SOIC-8	Lower endurance, 20+ ms page programming, requires erase before write, no AEC-Q100 Grade 1 rating	Acceptable only for infrequent configuration storage where write latency and cycle count are noncritical.

Compared with FM25V01-G and AT25DF021A-SSH-T, the CY15E016Q-SXE uniquely delivers automotive-grade reliability, 5 V compatibility, and true zero-latency writes - making it the sole choice for safety-critical, high-write-frequency automotive subsystems.

Availability

CY15E016Q-SXE is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and electric power steering modules requiring stable component supply across extended automotive product lifecycles.

Supply support for CY15E016Q-SXE 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, specializing in power management, automotive, and industrial control solutions.

The CY15E016Q-SXE belongs to Infineon's automotive F-RAM product line, engineered specifically to replace EEPROM and flash in safety-critical, high-write-frequency applications where data integrity and deterministic timing are mandatory.

FAQ

Is CY15E016Q-SXE pin-compatible with standard SPI EEPROMs like AT25010B?

Yes - it uses identical SOIC-8 pinout and supports SPI modes 0 and 3, enabling direct hardware replacement without PCB redesign. However, its NoDelay™ write behavior eliminates the need for software polling routines required by EEPROMs, simplifying firmware integration.

Does CY15E016Q-SXE require external high-voltage programming circuitry?

No - unlike EEPROM and flash, it performs writes at standard VDD (4.5–5.5 V) with no charge pump or high-voltage generation. All operations use single-supply logic-level signaling, reducing system complexity and EMI risk in sensitive automotive environments.

How does the HOLD pin function during active memory access?

When HOLD is pulled LOW while SCK is LOW, the CY15E016Q-SXE immediately suspends the current SPI transaction - holding SCK, SI, and SO states - allowing the host MCU to service interrupts or real-time tasks without data corruption or bus contention.

What write protection mechanisms does CY15E016Q-SXE support?

It provides three-tiered protection: hardware lock via WP pin (for status register), software disable via WRDI instruction, and configurable block protection (1/4, 1/2, or full array) set through the Status Register - enabling granular security for calibration, safety, and user data partitions.

CY15E016Q-SXE Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: F-RAM™

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FRAM

Technology:: FRAM (Ferroelectric RAM)

Memory Size:: 16Kbit

Memory Organization:: 2K x 8

Memory Interface:: SPI

Clock Frequency:: 16 MHz

Write Cycle Time - Word, Page:: -

Access Time:: -

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

CY15E016Q-SXE FAQ

1.How can I place an order for CY15E016Q-SXE through Aetrix?

Please submit a Request for Quotation (RFQ) for CY15E016Q-SXE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY15E016Q-SXE reliable?

The price and inventory of CY15E016Q-SXE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15E016Q-SXE is usually 5 days.

3.What payment methods are accepted for CY15E016Q-SXE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15E016Q-SXE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY15E016Q-SXE?

CY15E016Q-SXE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY15E016Q-SXE order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY15E016Q-SXE?

For technical support, including CY15E016Q-SXE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15E016Q-SXE requirements.

6.How does Aetrix verify that CY15E016Q-SXE is sourced from the original manufacturer or authorized distributors?

All CY15E016Q-SXE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY15E016Q-SXE meets industry standards.

7.What is the process for return or replacement of CY15E016Q-SXE?

All CY15E016Q-SXE units undergo pre-shipment inspection (PSI). If there is an issue with CY15E016Q-SXE, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY15E016Q-SXE part is unused and in its original packaging.

Return procedure for CY15E016Q-SXE:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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