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Infineon Technologies CY14B101LA-SP45XIT
- Part No.:
- CY14B101LA-SP45XIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
CY14B101LA-SP45XIT.pdf
- Description:
- IC NVSRAM 1MBIT PARALLEL 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
CY14B101LA-SP45XIT from Infineon Technologies (formerly Cypress) is a 1-Mbit nonvolatile SRAM (nvSRAM) with QuantumTrap technology, organized as 128 K × 8, 45 ns access time, single 3.0 V (+20% / –10%) supply, and industrial temperature range (–40 °C to +85 °C). It performs automatic STORE on power-down using an external VCAP capacitor and supports software/hardware-initiated STORE/RECALL for data retention in mission-critical embedded systems.
For engineers reviewing the CY14B101LA-SP45XIT datasheet, CY14B101LA-SP45XIT pinout, CY14B101LA-SP45XIT application, or CY14B101LA-SP45XIT equivalent, key selection criteria include AutoStore timing dependency on VCAP capacitance, HSB-driven hardware STORE arbitration, ×8 vs ×16 configuration compatibility, and 1 million STORE endurance versus infinite SRAM read/write cycles.
Technical Context
This nvSRAM integrates parallel SRAM and QuantumTrap nonvolatile storage in each cell, enabling simultaneous STORE/RECALL across all 131,072 bytes without block addressing. The architecture decouples volatile operation from nonvolatile persistence: SRAM functions at full speed during normal operation, while STORE/RECALL inhibit SRAM access only during execution.
AutoStore triggers when VCC drops below VSWITCH (2.5 V typical), disconnecting VCAP from VCC and using stored charge to complete a full-cell STORE in ≤20 ms. Hardware STORE is initiated by pulling HSB low, and software STORE uses a specific address write sequence-both bypass AutoStore's write-activity precondition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mbit (128 K × 8), fixed ×8 organization for this part number |
| Access time | 45 ns - defines maximum clock-to-data delay in SRAM read cycles |
| Supply voltage | 3.0 V ±10% to +20% - supports wide-input industrial rails without external regulation |
| Data retention | 20 years at +85 °C - guaranteed nonvolatile data hold without refresh or power |
| STORE endurance | 1 million cycles - limits total nonvolatile write events over lifetime |
| Operating temperature | –40 °C to +85 °C - qualified for industrial control, metering, and transportation systems |
| VCAP requirement | 12 µF tantalum or 22 µF ceramic - minimum capacitance to sustain full STORE under worst-case VCC droop |
Pinout & Package
Package: 32-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, body width 7.5 mm, lead pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address inputs | Selects one of 131,072 × 8-bit locations; A16 used only in ×8 mode |
| DQ0–DQ7 | Bidirectional data I/O | 8-bit parallel data path; tristated when OE HIGH or during STORE/RECALL |
| CE, OE, WE | Active-low control enables | Chip Enable, Output Enable, Write Enable - standard SRAM control timing interface |
| HSB | Hardware STORE Busy | Open-drain status output indicating active STORE; also accepts LOW pulse to initiate hardware STORE |
| VCAP | AutoStore energy reservoir | Connects to external capacitor; internal regulator charges it to ~2.5 V during normal operation |
| VCC, VSS | Power and ground | Single 3 V supply domain; no separate I/O or core voltage rails |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap nonvolatile cell | Embedded per-cell storage eliminates need for external EEPROM/NAND and associated wear-leveling firmware |
| AutoStore on power-loss | Zero-software overhead persistence: stores entire SRAM contents automatically when main supply fails |
| Software STORE/RECALL | Controlled via address-based command sequence - enables deterministic save points without hardware signal intervention |
| Infinite SRAM read/write cycles | Preserves full SRAM performance and reliability; nonvolatile operations do not degrade volatile access lifetime |
| HSB pin arbitration | Allows system-level coordination of STORE initiation and completion detection - prevents race conditions during brownout |
Applications
| Industrial PLC Data Logging | Smart Meter Firmware State Backup |
|---|---|
Use Scenario: Retaining real-time process variables and alarm history during unexpected AC mains failure in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile SRAM buffer holding last known operational state; AutoStore triggered within 100 µs of VCC drop below 2.5 V. Use Value: Eliminates battery-backed RAM maintenance and ensures deterministic recovery without firmware checksum validation delays. | Use Scenario: Preserving tariff tables, consumption counters, and tamper-event timestamps across power cycles in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Primary data retention element synchronized to metrology SoC interrupts; RECALL completes before first ADC sample post-power-up. Use Value: Meets IEC 62056-21 data integrity requirements without external FRAM or backup capacitors exceeding 10 mm height. |
| Railway Signaling Controller State | Medical Infusion Pump Runtime Parameters |
Use Scenario: Capturing interlocking logic states and sensor inputs during emergency shutdown or track power interruption in EN 5012x-certified signaling systems. IC Role / Device Role / Timing Role: Fail-safe memory mapped into microcontroller's SRAM space; HSB monitored to confirm STORE completion before safe state assertion. Use Value: Achieves SIL-2 data preservation assurance without redundant memory controllers or external watchdog supervision. | Use Scenario: Storing dose history, occlusion pressure thresholds, and calibration offsets between power-on cycles in Class IIa infusion pumps. IC Role / Device Role / Timing Role: Critical parameter store accessed via standard SRAM bus; software STORE invoked after each therapy adjustment. Use Value: Complies with IEC 62304 SW safety classification by isolating volatile/nonvolatile writes and enabling deterministic audit trail generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14CA8-45I3F | 45 ns access, 1 Mbit ×8, but uses NVSRAM with different STORE trigger logic and no HSB pin | Lacks hardware STORE arbitration; relies solely on VCC monitoring without status feedback | Prefer when system design omits HSB routing and accepts blind AutoStore behavior |
| FM24V10-G | F-RAM with 1 Mbit ×8, 45 ns, but unlimited STORE endurance and no VCAP capacitor required | No power-loss energy management needed; however, lower data retention (10 years) and higher standby current | Prefer when frequent STORE operations dominate and capacitor footprint must be eliminated |
Compared with STK14CA8-45I3F and FM24V10-G, CY14B101LA-SP45XIT provides deterministic STORE status via HSB, 20-year retention, and seamless SRAM timing compatibility - making it optimal for systems requiring verified persistence confirmation and long-term field deployment without maintenance.
Availability
CY14B101LA-SP45XIT is available at Aetrix Electronics and suitable for industrial PLC data logging, smart meter firmware state backup, and railway signaling controller state retention requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for CY14B101LA-SP45XIT 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.
CY14B101LA-SP45XIT belongs to Infineon's nvSRAM product line, designed specifically for deterministic, battery-free data retention in harsh-environment embedded systems where power integrity cannot be guaranteed.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B101LA-SP45XIT requires a minimum 12 µF tantalum or 22 µF ceramic capacitor on the VCAP pin to guarantee successful STORE under worst-case conditions (VCC = 3.0 V, T = +85 °C, tSTORE ≤ 20 ms). Lower values risk incomplete STORE and data corruption. The capacitor must be placed within 5 mm of the VCAP pin with low-ESR construction.
Can CY14B101LA-SP45XIT be used in a ×16 bus configuration?
No. CY14B101LA-SP45XIT is factory-configured for 128 K × 8 organization only. The CY14B101NA variant supports 64 K × 16. Pinout, address mapping (A0–A16), and DQ pin count (DQ0–DQ7) are fixed for ×8 operation; attempting ×16 use will result in incorrect addressing and data misalignment.
How does the HSB pin function during power-up and power-down sequences?
At power-up, HSB is driven HIGH for tHHHD (≤100 ns) then held HIGH by a weak internal pull-up. During power-down, if AutoStore initiates, HSB goes LOW within 1 µs of VCC crossing VSWITCH and remains LOW until STORE completes (~20 ms). External pull-up is optional but recommended for noise immunity when HSB is used as input.
Is software STORE compatible with all supported packages?
Yes. Software STORE - initiated by writing specific address sequences (0x0000, 0x0001, 0x0002) - operates identically across all packages (SOIC, TSOP, SSOP, FBGA). It does not depend on HSB presence or VCAP connection, making it usable even in configurations where HSB is absent (e.g., 44-pin TSOP II ×16) or VCAP is omitted.
CY14B101LA-SP45XIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
CY14B101LA-SP45XIT FAQ
1.How can I place an order for CY14B101LA-SP45XIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B101LA-SP45XIT 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 CY14B101LA-SP45XIT reliable?
The price and inventory of CY14B101LA-SP45XIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B101LA-SP45XIT is usually 5 days.
3.What payment methods are accepted for CY14B101LA-SP45XIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B101LA-SP45XIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B101LA-SP45XIT?
CY14B101LA-SP45XIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B101LA-SP45XIT 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 CY14B101LA-SP45XIT?
For technical support, including CY14B101LA-SP45XIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B101LA-SP45XIT requirements.
6.How does Aetrix verify that CY14B101LA-SP45XIT is sourced from the original manufacturer or authorized distributors?
All CY14B101LA-SP45XIT 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 CY14B101LA-SP45XIT meets industry standards.
7.What is the process for return or replacement of CY14B101LA-SP45XIT?
All CY14B101LA-SP45XIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B101LA-SP45XIT, 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 CY14B101LA-SP45XIT part is unused and in its original packaging.
Return procedure for CY14B101LA-SP45XIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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