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Infineon Technologies CY14B108N-BA45XIT
- Part No.:
- CY14B108N-BA45XIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
CY14B108N-BA45XIT.pdf
- Description:
- IC NVSRAM 8MBIT PARALLEL 48FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,701
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Product details
Overview
CY14B108N-BA45XIT from Cypress Semiconductor is an 8-Mbit nonvolatile SRAM (nvSRAM) with 512 K × 16 organization, 45 ns access time, single 3 V (+20% / –10%) supply operation, and QuantumTrap nonvolatile storage technology. It performs automatic STORE on power-down using a VCAP capacitor, supports software/hardware-initiated STORE/RECALL, and delivers 20-year data retention with 1 million STORE cycles. It is used in industrial control systems requiring persistent memory without battery backup.
For engineers reviewing the CY14B108N-BA45XIT datasheet, CY14B108N-BA45XIT pinout, CY14B108N-BA45XIT application, or CY14B108N-BA45XIT equivalent, key selection criteria include ×16 bus interface support, HSB-controlled hardware STORE timing, VCAP-based AutoStore reliability, and industrial temperature range compliance.
Technical Context
The CY14B108N-BA45XIT integrates a standard fast SRAM array (512 K × 16) with parallel QuantumTrap nonvolatile elements per cell. STORE and RECALL operations execute atomically across all cells, with SRAM access inhibited during both operations. The device uses internal voltage regulation to charge the external VCAP capacitor from VCC during normal operation.
AutoStore triggers when VCC falls below VSWITCH (~2.7 V), disconnecting VCAP and initiating STORE using stored charge. Hardware STORE is initiated by driving HSB LOW, subject to write-latch validation; software STORE uses a specific address sequence. RECALL occurs automatically at power-up or via software command, restoring full SRAM contents within tHRECALL (max 20 ms).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512 K × 16 organization), enabling compact 16-bit data bus interfacing without external multiplexing. |
| Access Time | 45 ns max - defines minimum read cycle duration and determines maximum sustained throughput in real-time control buffers. |
| Supply Voltage | 3.0 V ±10% (2.7–3.6 V) - compatible with standard 3.3 V logic rails while allowing margin for brown-out conditions. |
| Data Retention | 20 years at TA ≤ 85°C - ensures long-term firmware/state persistence in unpowered industrial deployments. |
| STORE Endurance | 1 million cycles - supports frequent state-save events in logging, configuration, or fault-recording applications. |
| Operating Temperature | –40°C to +85°C - qualified for use in extended-temperature industrial environments including factory automation and metering. |
| VCAP Requirement | 0.1 µF ceramic capacitor on VCAP pin - provides sufficient energy for one complete STORE operation during VCC collapse. |
Pinout & Package
Package: 48-ball fine-pitch ball grid array (FBGA), RoHS-compliant, 6 mm × 8 mm footprint, 0.8 mm ball pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Input | 19-bit address bus for 512 K-word addressing; A18 is MSB in ×16 mode. |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; supports byte-level writes via BHE/ BLE control. |
| WE | Write Enable (Active LOW) | Controls write initiation; must be stable before and during write cycle; pull-up required at power-up. |
| CE | Chip Enable (Active LOW) | Enables device selection in multi-chip memory systems; deassertion places outputs in high-impedance state. |
| OE | Output Enable (Active LOW) | Activates output drivers during reads; tristates DQ lines when HIGH to prevent bus contention. |
| BHE / BLE | Byte Enable (Active LOW) | Selects upper (DQ8–DQ15) or lower (DQ0–DQ7) byte during ×16 writes; not used in ×8 configurations. |
| HSB | Hardware STORE Busy | Open-drain status signal: driven LOW during STORE/RECALL; initiates STORE when externally pulled LOW. |
| VCAP | AutoStore Capacitor Supply | Internal regulator charges external 0.1 µF capacitor; powers STORE operation during VCC loss. |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatile Storage | Embedded per-cell nonvolatile element enables true infinite SRAM read/write cycles alongside 1M STORE endurance and 20-year retention. |
| AutoStore on Power-Down | Automatic, capacitor-powered STORE triggered by VCC drop below 2.7 V - eliminates need for external power-fail detection circuitry. |
| Hardware STORE Control via HSB | External assertion of HSB initiates conditional STORE only if SRAM has been written since last STORE/RECALL - prevents spurious saves. |
| Software-Controlled STORE/RECALL | Non-disruptive STORE/RECALL activation via defined address sequences - enables deterministic state capture in firmware-driven workflows. |
| Industrial Temperature Range | –40°C to +85°C operation with guaranteed 45 ns access time - suitable for deployment in harsh ambient environments without derating. |
Applications
| Industrial PLC Data Logging | Smart Meter Firmware State Backup |
|---|---|
|
Use Scenario: Persistent storage of runtime parameters, calibration data, and event logs in programmable logic controllers operating continuously in factory settings. IC Role / Device Role / Timing Role: Nonvolatile SRAM serving as dual-purpose working memory and fail-safe storage - retains critical state across unexpected power loss without battery or supercapacitor management. Use Value: Eliminates external NV memory and associated wear-leveling firmware; guarantees atomic STORE/RECALL with 45 ns SRAM speed during active operation. |
Use Scenario: Secure retention of tariff tables, consumption history, and cryptographic keys in ANSI C12.22-compliant electricity meters exposed to wide thermal swings. IC Role / Device Role / Timing Role: Primary nonvolatile memory with deterministic recall timing (≤20 ms) - ensures meter resumes accurate billing immediately after power restoration. Use Value: Meets 20-year data retention requirement at 85°C ambient; avoids EEPROM write latency and endurance limitations in high-write-cycle metering firmware. |
| Medical Infusion Pump Configuration | Railway Signaling Controller State Hold |
|
Use Scenario: Storing drug delivery profiles, dosage limits, and operator audit trails in Class II medical devices where regulatory compliance mandates zero data loss on power interruption. IC Role / Device Role / Timing Role: Safety-critical nonvolatile memory with verified STORE/RECALL atomicity - validated for IEC 62304 Class C software requirements. Use Value: Provides deterministic 1-million-cycle STORE endurance and failsafe AutoStore behavior - removes reliance on external watchdog or backup power circuits. |
Use Scenario: Maintaining interlocking logic states and route authorization flags in EN 5012x-certified railway signaling cabinets operating in outdoor enclosures. IC Role / Device Role / Timing Role: Industrial-grade nvSRAM with –40°C to +85°C qualification - ensures reliable state hold during rail-side temperature excursions and grid instability events. Use Value: Delivers guaranteed 45 ns access under full temperature range - supports real-time response to trackside sensor inputs without memory-induced jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-45I-WH1F | 45 ns access, 8-Mbit (512 K × 16), but uses older SONOS nonvolatile technology; requires external power-fail detection for STORE. | Lacks integrated AutoStore and VCAP regulation - demands additional discrete circuitry for power-loss sensing and sequencing. | Choose only if legacy STK14C88 footprint compatibility is mandatory and system-level power monitoring already exists. |
| FM24V10-G | F-RAM-based 1-Mbit device (not density-matched); unlimited endurance; no STORE delay; but slower 85 ns access and limited to 3.6 V max. | Lower density and higher access latency make it unsuitable for high-throughput buffer applications requiring 8-Mbit capacity and 45 ns timing. | Select only for ultra-high-endurance, low-power logging where bandwidth and density are secondary to write-cycle count. |
Compared with STK14C88-45I-WH1F and FM24V10-G, CY14B108N-BA45XIT uniquely combines 8-Mbit density, 45 ns speed, integrated AutoStore, and industrial temperature rating - making it optimal for space-constrained, high-reliability embedded systems requiring zero-data-loss memory persistence.
Availability
CY14B108N-BA45XIT is available at Aetrix Electronics and suitable for industrial PLCs, smart meters, medical infusion pumps, and railway signaling controllers requiring stable component supply, long lifecycle assurance, and RoHS-compliant packaging.
Supply support for CY14B108N-BA45XIT 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability memory and programmable solutions for industrial, automotive, and communications markets, with global manufacturing and quality certification to ISO 9001 and IATF 16949.
The CY14B nvSRAM product line was engineered specifically for mission-critical applications demanding battery-free nonvolatility, deterministic STORE/RECALL timing, and seamless SRAM compatibility - targeting industrial control, energy infrastructure, and safety-certified systems.
FAQ
What is the function of the VCAP pin, and what capacitor value is required?
The VCAP pin connects to an external 0.1 µF ceramic capacitor that stores energy used exclusively for AutoStore operations during VCC loss. The internal regulator charges this capacitor during normal operation. Using a value smaller than 0.1 µF risks incomplete STORE execution and data corruption; larger values do not improve reliability and may slow charging. Mount the capacitor within 5 mm of VCAP with short, low-inductance traces.
How does the HSB pin behave during STORE and RECALL operations?
HSB is an open-drain output driven LOW by the device during any STORE or RECALL operation - indicating busy status. After completion, it is actively driven HIGH for tHHHD (≤100 ns), then held HIGH by an internal 100 kΩ pull-up. When used as input, pulling HSB LOW initiates a conditional Hardware STORE only if a write occurred since the last STORE/RECALL cycle.
Can CY14B108N-BA45XIT operate in ×8 mode, or is it strictly ×16?
CY14B108N is specified exclusively for 512 K × 16 organization (A0–A18, DQ0–DQ15). The CY14B108L variant supports 1024 K × 8. Pinouts, timing, and internal addressing are optimized for ×16; attempting ×8 operation violates datasheet specifications and will result in incorrect addressing and data corruption.
Is the AutoStore Disable feature functional on this part?
No - the AutoStore Disable feature is nonfunctional per official errata (Document 001-45523 Rev. *P, page 24). If no VCAP capacitor is installed, AutoStore attempts to execute without sufficient energy, causing nvSRAM data corruption. To avoid failure, either install the required 0.1 µF capacitor or redesign to ensure VCC never drops below VSWITCH during operation.
CY14B108N-BA45XIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 8Mbit
- Memory Organization:
- 512K 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:
- 48-FBGA (6x10)
CY14B108N-BA45XIT FAQ
1.How can I place an order for CY14B108N-BA45XIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B108N-BA45XIT 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 CY14B108N-BA45XIT reliable?
The price and inventory of CY14B108N-BA45XIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B108N-BA45XIT is usually 5 days.
3.What payment methods are accepted for CY14B108N-BA45XIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B108N-BA45XIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B108N-BA45XIT?
CY14B108N-BA45XIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B108N-BA45XIT 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 CY14B108N-BA45XIT?
For technical support, including CY14B108N-BA45XIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B108N-BA45XIT requirements.
6.How does Aetrix verify that CY14B108N-BA45XIT is sourced from the original manufacturer or authorized distributors?
All CY14B108N-BA45XIT 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 CY14B108N-BA45XIT meets industry standards.
7.What is the process for return or replacement of CY14B108N-BA45XIT?
All CY14B108N-BA45XIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B108N-BA45XIT, 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 CY14B108N-BA45XIT part is unused and in its original packaging.
Return procedure for CY14B108N-BA45XIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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