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Infineon Technologies CY14B104L-BA45XCT
- Part No.:
- CY14B104L-BA45XCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-TFBGA
- Datasheet:
-
CY14B104L-BA45XCT.pdf
- Description:
- IC NVSRAM 4MBIT PARALLEL 48FBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,346
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Product details
Overview
CY14B104L-BA45XCT from Cypress Semiconductor is a 4 Mbit (512K × 8) nonvolatile SRAM with QuantumTrap® technology, operating at 45 ns access time, single 3V ±10% supply, and supporting AutoStore® on power loss via VCAP capacitor. It performs hardware/software STORE and RECALL operations, enabling data retention without external backup power in industrial control logging systems.
For engineers reviewing the CY14B104L-BA45XCT datasheet, CY14B104L-BA45XCT pinout, CY14B104L-BA45XCT application, or CY14B104L-BA45XCT equivalent, key selection criteria include x8 vs x16 configuration compatibility, HSB-driven store timing, VCAP capacitance requirement (0.1 µF), and 200,000 STORE cycle endurance.
Technical Context
The CY14B104L-BA45XCT integrates parallel SRAM and QuantumTrap nonvolatile cells per bit, enabling simultaneous STORE/RECALL across all 524,288 bytes. Its architecture supports three STORE initiation modes: AutoStore on VCC drop below VSWITCH, hardware STORE via HSB pin assertion, and software STORE via six-address CE-read sequence.
It uses 19 address lines (A0–A18) for x8 mode, 8-bit bidirectional DQ0–DQ7 I/O, and active-low control signals CE, OE, and WE. The HSB pin serves dual role: open-drain busy indicator during STORE/RECALL and hardware trigger input, with internal weak pull-up when unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Mbit (512K × 8), fixed x8 organization for this variant |
| Access Time | 45 ns - defines maximum clock-to-data valid delay in read cycles |
| Supply Voltage | 3.0 V ±10% - requires stable 2.7–3.6 V rail; no 5 V tolerance |
| STORE Endurance | 200,000 cycles - limits total nonvolatile write events over lifetime |
| Data Retention | 20 years at +85°C - guaranteed nonvolatile data hold without refresh |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature range |
| VCAP Capacitor | 0.1 µF - minimum ceramic capacitor required for AutoStore operation |
Pinout & Package
Package: 48-ball Fine-Pitch Ball Grid Array (FBGA), 6 mm × 8 mm, RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Input | Address inputs selecting one of 524,288 bytes in x8 mode |
| DQ0–DQ7 | I/O | Bidirectional data bus for read/write; tri-stated when OE HIGH |
| CE | Input | Active-low chip enable; disables device and places outputs in high-Z when HIGH |
| OE | Input | Active-low output enable; controls data buffer drive during reads |
| WE | Input | Active-low write enable; latches DQ data into SRAM when CE LOW |
| HSB | I/O | Open-drain hardware store busy/status pin; LOW = STORE/RECALL in progress or initiated |
| VCAP | Power | Capacitor connection point; supplies energy for STORE during VCC dropout |
| VCC | Power | Main 3V supply input; powers SRAM and internal regulators |
| VSS | Ground | System ground reference; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore® on power loss | Enables automatic STORE using VCAP charge without host intervention or firmware |
| Hardware STORE via HSB | Allows deterministic, externally triggered nonvolatile save with status feedback |
| Software STORE/RECALL | Permits controlled, application-timed data persistence using 6-address CE-read sequence |
| QuantumTrap® cell architecture | Delivers 20-year data retention and infinite SRAM read/write cycles alongside 200K STOREs |
| x8 organization with 48-ball FBGA | Optimizes board space and signal integrity for compact industrial controllers and PLC modules |
Applications
| Industrial PLC Data Logging | Medical Device Parameter Storage |
|---|---|
|
Use Scenario: Storing real-time sensor readings and alarm history in programmable logic controllers during unexpected mains failure. IC Role / Device Role / Timing Role: Nonvolatile memory buffer preserving last known state and operational logs without battery backup. Use Value: Eliminates need for supercapacitors or coin cells while guaranteeing 20-year data retention at 85°C ambient. |
Use Scenario: Saving calibration coefficients, usage counters, and fault logs in portable diagnostic equipment between power cycles. IC Role / Device Role / Timing Role: Fast-access SRAM with seamless recall on power-up ensures immediate system readiness after battery replacement. Use Value: 45 ns access enables direct MPU interface without wait states; software RECALL allows controlled initialization sequence. |
| Avionics Black Box Buffer | Smart Meter Firmware State Backup |
|
Use Scenario: Capturing flight-critical telemetry snapshots in aircraft data acquisition units where power interruption is transient but frequent. IC Role / Device Role / Timing Role: Hardware STORE triggered by HSB monitors voltage sag and initiates atomic save before brownout. Use Value: HSB-driven STORE completes within tSTORE (max 20 ms), ensuring capture of final valid sensor frame prior to shutdown. |
Use Scenario: Preserving metering registers, tariff tables, and tamper-event timestamps during grid voltage sags in utility smart meters. IC Role / Device Role / Timing Role: AutoStore activated by VCC drop below 2.7 V automatically saves critical billing data without MCU involvement. Use Value: 0.1 µF VCAP requirement simplifies BOM and layout; eliminates EEPROM wear-out concerns in high-write-rate metering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-45I | 4 Mbit nvSRAM, 45 ns, 3V, but uses older SONOS nonvolatile technology; 100K STORE cycles, 10-year retention | Lacks HSB pin and software STORE/RECALL sequences; relies solely on VCAP-based AutoStore | Choose if simpler interface suffices and 10-year retention meets requirements; avoid for high-reliability 20-year deployments |
| FM24V04-G | 4 Mbit F-RAM, 3V, 55 ns, unlimited endurance, but no AutoStore - requires external power-fail detection and MCU-controlled save | No built-in power-loss detection or VCAP support; needs external circuitry for STORE triggering | Prefer when infinite write cycles are mandatory and system can dedicate GPIO/interrupt for power-fail signaling |
Compared with STK14C88-45I and FM24V04-G, the CY14B104L-BA45XCT uniquely combines 20-year retention, hardware-triggered STORE via HSB, and zero-software-overhead AutoStore - making it optimal for industrial systems requiring autonomous, deterministic nonvolatile save without MCU supervision.
Availability
CY14B104L-BA45XCT is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics equipment, avionics data recorders, and smart utility meters requiring stable component supply with long-term lifecycle assurance.
Supply support for CY14B104L-BA45XCT 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 systems.
The CY14B series targets applications needing battery-free nonvolatile storage with SRAM speed - specifically engineered for mission-critical data logging where power loss is unpredictable and data integrity is non-negotiable.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B104L-BA45XCT requires a minimum 0.1 µF ceramic capacitor on the VCAP pin to ensure sufficient energy for one complete STORE operation during VCC dropout. Larger values (e.g., 0.22 µF) improve margin under worst-case voltage droop and temperature extremes but do not extend STORE endurance.
Can the HSB pin be left unconnected if hardware STORE is not used?
Yes - the HSB pin has an internal weak pull-up resistor and may be left floating if hardware STORE initiation and busy indication are unused. In that case, STORE operations rely solely on AutoStore (power loss) or software sequence, and HSB remains HIGH during normal operation.
Does the CY14B104L-BA45XCT support x16 data width?
No - the CY14B104L variant is strictly 512K × 8 (x8). The x16 configuration is implemented only in the CY14B104N part number. Pinouts, address mapping (A0–A17), and byte-enable signals (BHE/BLE) differ; mixing them causes functional failure.
How does the software STORE sequence prevent accidental activation?
The software STORE requires six exact CE-controlled read cycles to specific addresses (0x4E38, 0xB1C7, 0x83E0, 0x7C1F, 0x703F, 0x8FC0) in order, with WE held HIGH throughout. Any intervening write, address violation, or timing violation (e.g., exceeding tSS) aborts the sequence - ensuring robustness against spurious noise or firmware errors.
CY14B104L-BA45XCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-FBGA (6x10)
CY14B104L-BA45XCT FAQ
1.How can I place an order for CY14B104L-BA45XCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B104L-BA45XCT 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 CY14B104L-BA45XCT reliable?
The price and inventory of CY14B104L-BA45XCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B104L-BA45XCT is usually 5 days.
3.What payment methods are accepted for CY14B104L-BA45XCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B104L-BA45XCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B104L-BA45XCT?
CY14B104L-BA45XCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B104L-BA45XCT 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 CY14B104L-BA45XCT?
For technical support, including CY14B104L-BA45XCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B104L-BA45XCT requirements.
6.How does Aetrix verify that CY14B104L-BA45XCT is sourced from the original manufacturer or authorized distributors?
All CY14B104L-BA45XCT 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 CY14B104L-BA45XCT meets industry standards.
7.What is the process for return or replacement of CY14B104L-BA45XCT?
All CY14B104L-BA45XCT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B104L-BA45XCT, 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 CY14B104L-BA45XCT part is unused and in its original packaging.
Return procedure for CY14B104L-BA45XCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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