Infineon Technologies CY14B116N-ZSP45XI
- Part No.:
- CY14B116N-ZSP45XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B116N-ZSP45XI.pdf
- Description:
- IC NVSRAM 16MBIT PAR 54TSOP II
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY14B116N-ZSP45XI from Infineon Technologies (formerly Cypress) is a 16-Mbit nonvolatile SRAM (nvSRAM) with ×16 organization (1024K × 16), 45-ns access time, 2.7–3.6 V supply, and industrial temperature range (–40 °C to +85 °C). It integrates QuantumTrap nonvolatile storage per cell, enabling automatic STORE on power-down and software/hardware-controlled RECALL-used in mission-critical data logging, industrial PLCs, and telecom control planes where volatile memory persistence is essential.
For engineers reviewing the CY14B116N-ZSP45XI datasheet, CY14B116N-ZSP45XI pinout, CY14B116N-ZSP45XI application, or CY14B116N-ZSP45XI equivalent, key selection considerations include its 45-ns timing, TSOP II 54-pin package, AutoStore capacitor (VCAP) interface, HSB busy signaling, and dual CE support for robust memory enable control in high-availability systems.
Technical Context
This nvSRAM combines a fast static RAM array (4096 × 4096) with parallel QuantumTrap nonvolatile elements, enabling bit-cell-level nonvolatility without external EEPROM or flash. STORE transfers data from SRAM to QuantumTrap via internal charge pump; RECALL restores data on power-up using stored energy from VCAP.
It supports three STORE initiation modes: AutoStore (triggered by VCC drop), Hardware STORE (via HSB pin assertion), and Software STORE (via command sequence). Sleep mode (enabled via ZZ pin) reduces current to 10 µA but is not supported in this TSOP II variant-only in 165-ball FBGA packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (1024K × 16 organization), enabling compact 2 MB data buffer with 16-bit bus alignment. |
| Access Time | 45 ns-guarantees deterministic read/write latency for real-time control loops in industrial microcontrollers. |
| Supply Voltage | 2.7 V to 3.6 V-compatible with modern 3.3 V system rails and tolerant of brown-out conditions down to 2.7 V. |
| STORE Endurance | 1 million STORE cycles to QuantumTrap-supports daily firmware state saves over 27 years of operation. |
| Data Retention | 20 years at +85 °C-ensures long-term data integrity in unpowered storage for industrial backup logs. |
| Active Current | 75 mA at 45 ns-enables predictable power budgeting in always-on edge controllers with burst memory access. |
| Standby Current | 650 µA-reduces quiescent draw during idle periods without requiring full power-down sequencing. |
Pinout & Package
Package: 54-pin Thin Small-Outline Package (TSOP II), RoHS-compliant, surface-mount, 0.8 mm pitch, 20.0 mm × 10.0 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Inputs | 1024K-word addressing space; A0–A19 fully decoded for ×16 mode-no address multiplexing required. |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; supports byte-wide writes via BHE/ BLE pins for partial-word updates. |
| CE | Chip Enable | Single active-low chip select (TSOP II); enables memory access only when asserted-critical for bus arbitration. |
| WE | Write Enable | Active-low write strobe; latches input data on falling edge-synchronizes with microcontroller write timing. |
| OE | Output Enable | Active-low output gate; tristates DQ lines when HIGH-prevents bus contention during read hold states. |
| HSB | Hardware STORE Busy | Open-drain status signal: LOW during STORE execution; used for hardware handshake and timeout monitoring. |
| VCAP | AutoStore Capacitor Terminal | Connects external 4.7 µF tantalum capacitor; supplies hold-up energy for reliable STORE during VCC collapse. |
| VCC / VSS | Power / Ground | Dual VCC pins (pins 26 & 39) and multiple VSS pins (pins 1, 25, 38, 49, 50, 51, 52, 53, 54) reduce IR drop and improve noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Hands-off AutoStore on power-down | Requires only a single external 4.7 µF capacitor at VCAP-eliminates need for backup batteries or supercaps. |
| Software STORE/RECALL control | Executed via standard SRAM write sequences-no special protocol or dedicated controller needed. |
| Infinite SRAM read/write cycles | Enables continuous runtime logging without wear-out concerns-ideal for cyclic buffer applications. |
| QuantumTrap nonvolatile element | Embedded per-cell storage ensures atomic STORE/RECALL without block erasure or page management overhead. |
| Industrial temperature range | –40 °C to +85 °C operation validated across full voltage and timing specs-suitable for factory-floor deployment. |
Applications
| Industrial PLC Data Logging | Telecom Control Plane Storage |
|---|---|
|
Use Scenario: Storing configuration snapshots and operational state before unexpected power loss in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile memory buffer interfaced directly to ARM Cortex-M7 MCU via 16-bit parallel bus; 45-ns access synchronizes with 100 MHz bus clock. Use Value: Guarantees zero-data-loss state recovery after brownouts-eliminates need for external FRAM or battery-backed SRAM modules. |
Use Scenario: Preserving routing table entries and session state in carrier-grade Ethernet switches during hot-swap power module replacement. IC Role / Device Role / Timing Role: Standalone ×16 nvSRAM acting as primary control memory for network processor; CE/WE/OE timing aligned to PCI Express memory-mapped I/O cycles. Use Value: Enables sub-100 ms failover with full state restoration-meets ITU-T G.8032 Ethernet ring protection timing requirements. |
| Military Avionics Boot Memory | Medical Imaging System Buffer |
|
Use Scenario: Holding flight control firmware checksums and calibration constants in airborne mission computers subject to rapid power cycling. IC Role / Device Role / Timing Role: Critical boot-time memory mapped at fixed address; accessed during cold start before OS initialization. Use Value: Ensures verified firmware integrity on every power-up-avoids corrupted boot due to incomplete flash writes or voltage sag. |
Use Scenario: Caching DICOM header metadata and acquisition parameters in portable ultrasound devices with intermittent battery operation. IC Role / Device Role / Timing Role: High-speed SRAM buffer between FPGA image pipeline and SD card storage; stores metadata during RF acquisition bursts. Use Value: Prevents metadata loss during battery switchover-maintains audit trail compliance for FDA 21 CFR Part 11 medical records. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY14B116N-ZS25XI | 25-ns access time; same 54-pin TSOP II package and ×16 organization; identical VCC range and temperature grade. | Supports higher-speed microcontrollers (e.g., Cortex-R5F @ 200 MHz) requiring tighter tAA/tOH timing margins. | Select for designs prioritizing worst-case latency over power efficiency-active current increases to 110 mA. |
| FM16W08-55-TG | F-RAM-based 8-Mbit (512K × 16); 55-ns access; 3.0–3.6 V; SOIC-32 package; no VCAP or HSB required. | Lacks hardware STORE trigger and AutoStore capacitor interface-relies solely on power-fail detection circuitry. | Choose when board space is constrained and deterministic STORE timing is less critical than ultra-low standby current (150 nA). |
Compared with CY14B116N-ZSP45XI, the -ZS25XI offers faster timing at higher power cost, while the FM16W08 uses F-RAM architecture with no STORE/RECALL latency but requires external power-fail sensing and lacks HSB status feedback.
Availability
CY14B116N-ZSP45XI is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and avionics applications requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.
Supply support for CY14B116N-ZSP45XI 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 systems, automotive ICs, and memory solutions-acquiring Cypress Semiconductor in 2020 to strengthen its embedded connectivity and nonvolatile memory portfolio.
CY14B116N belongs to Infineon's nvSRAM product line, designed specifically for systems demanding instant, deterministic, and battery-free nonvolatility-targeting industrial control, networking, and safety-critical embedded applications where data persistence cannot rely on external components.
FAQ
What is the function of the VCAP pin, and what capacitor value is required?
The VCAP pin connects an external 4.7 µF tantalum capacitor that supplies hold-up energy during VCC collapse, enabling reliable AutoStore operation. The capacitor must be placed within 10 mm of the pin with low-ESR (< 1 Ω) and rated for ≥6.3 V. Ceramic capacitors are not recommended due to insufficient energy storage and voltage derating issues under transient load.
Can CY14B116N-ZSP45XI operate in Sleep mode?
No-Sleep mode (activated via ZZ pin) is only supported in the 165-ball FBGA package variants (e.g., CY14B116N-BLFXI). The CY14B116N-ZSP45XI uses a 54-pin TSOP II package, which does not implement the ZZ pin functionality or associated low-power circuitry per the datasheet specification.
How does Hardware STORE differ from Software STORE in practice?
Hardware STORE is initiated by pulling the HSB pin LOW externally, triggering immediate nonvolatile write with no CPU involvement-used for emergency save during detected power failure. Software STORE requires writing specific address/data sequences to reserved SRAM locations, allowing controlled, application-timed saves during normal operation or graceful shutdown.
Is the CY14B116N-ZSP45XI pin-compatible with other CY14X116N variants?
Yes-all CY14X116N parts share identical 54-pin TSOP II pinout and ×16 organization. Differences are limited to access time (25/35/45 ns), supply voltage family (CY14B = 2.7–3.6 V; CY14E = 4.5–5.5 V), and package marking-allowing direct substitution in designs where timing and voltage margins permit.
CY14B116N-ZSP45XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 54-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 16Mbit
- Memory Organization:
- 1M x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-TSOP II
CY14B116N-ZSP45XI FAQ
1.How can I place an order for CY14B116N-ZSP45XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B116N-ZSP45XI 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 CY14B116N-ZSP45XI reliable?
The price and inventory of CY14B116N-ZSP45XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B116N-ZSP45XI is usually 5 days.
3.What payment methods are accepted for CY14B116N-ZSP45XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B116N-ZSP45XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B116N-ZSP45XI?
CY14B116N-ZSP45XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B116N-ZSP45XI 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 CY14B116N-ZSP45XI?
For technical support, including CY14B116N-ZSP45XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B116N-ZSP45XI requirements.
6.How does Aetrix verify that CY14B116N-ZSP45XI is sourced from the original manufacturer or authorized distributors?
All CY14B116N-ZSP45XI 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 CY14B116N-ZSP45XI meets industry standards.
7.What is the process for return or replacement of CY14B116N-ZSP45XI?
All CY14B116N-ZSP45XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B116N-ZSP45XI, 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 CY14B116N-ZSP45XI part is unused and in its original packaging.
Return procedure for CY14B116N-ZSP45XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY14B116N-ZSP45XI Tags

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