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Infineon Technologies CY14E064L-SZ45XI
- Part No.:
- CY14E064L-SZ45XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 28-SOIC (0.345", 8.77mm Width)
- Datasheet:
-
CY14E064L-SZ45XI.pdf
- Description:
- IC NVSRAM 64KBIT PARALLEL 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,903
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Product details
Overview
CY14E064L-SZ45XI from Cypress Semiconductor is a 64 Kbit (8K × 8) nonvolatile static RAM with QuantumTrap™ technology, operating at 5V ±10%, delivering 45 ns access time and supporting automatic STORE on power loss via VCAP capacitor. It integrates SRAM and nonvolatile storage in each cell, enabling unlimited READ/WRITE/RECALL cycles and 1,000,000 STORE cycles for industrial control data logging.
For engineers reviewing the CY14E064L-SZ45XI datasheet, CY14E064L-SZ45XI pinout, CY14E064L-SZ45XI application, or CY14E064L-SZ45XI equivalent, key selection factors include AutoStore™ timing behavior, HSB-controlled hardware store synchronization, VCAP capacitor sizing (68 µF), and software STORE/RECALL address sequence compliance.
Technical Context
The CY14E064L-SZ45XI implements a dual-cell architecture: a standard fast SRAM array (128 × 512) paired with parallel QuantumTrap nonvolatile elements. STORE and RECALL operations transfer all 8,192 bytes simultaneously, with SRAM access inhibited during nonvolatile cycles.
It supports three STORE initiation methods-AutoStore on VCC drop below VSWITCH (~3.6 V), hardware STORE via HSB pin (open-drain, active-low), and software STORE via six-address CE-controlled READ sequence (0x0000 → 0x0F0F). RECALL occurs automatically on power-up or via software (0x0F0E).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64 Kbit (8K × 8), providing byte-wide interface for legacy microcontroller bus systems. |
| Access Time | 45 ns max - defines minimum read/write cycle time for synchronous system timing budgets. |
| STORE Endurance | 1,000,000 cycles - limits field-replaceable unit lifetime in high-frequency logging applications. |
| Data Retention | 100 years at +25°C - ensures long-term archival integrity without refresh or backup power. |
| VCC Range | 4.5 V to 5.5 V - requires stable 5V rail; incompatible with 3.3V-only systems without level translation. |
| VCAP Capacitor | 68 µF ±20% - supplies energy for single STORE operation during power failure; must be low-ESR tantalum or polymer. |
| Operating Temp | 0°C to +70°C (Commercial) - validated for office, telecom, and non-automotive industrial environments. |
Pinout & Package
Package: 28-pin SOIC (Small Outline Integrated Circuit), RoHS-compliant, surface-mount, 300 mil body width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A12 | Input | 13-bit address bus selecting one of 8,192 memory locations; compatible with 8-bit microprocessor address latching. |
| DQ0–DQ7 | Input/Output | Bidirectional 8-bit data bus; tri-stated when OE HIGH or during STORE/RECALL to prevent bus contention. |
| WE | Input | Active-low write enable; must remain HIGH during AutoStore or software STORE to avoid corruption. |
| CE | Input | Active-low chip enable; controls device selection and initiates software STORE/RECALL sequences. |
| OE | Input | Active-low output enable; disables output drivers during WRITE or STORE to isolate data bus. |
| HSB | Input/Output | Open-drain hardware store busy signal; pulled LOW by device during STORE, used to synchronize multi-chip STORE. |
| VCAP | Power Supply | External capacitor connection point; internal charge pump drives it to 5V; powers STORE when VCC fails. |
| VSS / VCC | Power | Ground and +5V supply pins; requires 0.1 µF high-frequency bypass capacitor between them near package. |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore™ on Power Loss | Enables zero-software, zero-intervention data preservation using external 68 µF capacitor and internal charge pump. |
| Hardware Store Synchronization | HSB pin allows coordinated STORE across multiple CY14E064L devices sharing one VCAP capacitor bank. |
| Software STORE/RECALL Sequencing | 6-address CE-controlled READ sequence (0x0000→0x0F0F or 0x0F0E) provides deterministic, debuggable nonvolatile control. |
| QuantumTrap™ Cell Architecture | Parallel SRAM + nonvolatile storage per cell eliminates serial EEPROM bottlenecks and wear leveling complexity. |
| Data Protection During Brown-out | Automatic inhibition of STORE/WRITE when VCC < VSWITCH (~3.6 V) prevents partial writes and memory corruption. |
Applications
| Industrial PLC Data Logging | Point-of-Sale Transaction Buffering |
|---|---|
|
Use Scenario: Capturing sensor readings and operational states in programmable logic controllers during mains power interruption. IC Role / Device Role / Timing Role: Nonvolatile memory buffer preserving last known state and I/O configuration before shutdown. Use Value: Eliminates need for battery-backed SRAM or external EEPROM, reducing BOM count and field failure risk from battery leakage. |
Use Scenario: Storing incomplete sales transactions and tax register values in retail terminals during unexpected AC loss. IC Role / Device Role / Timing Role: Atomic STORE-on-power-loss ensures transaction atomicity without host CPU intervention. Use Value: Guarantees fiscal compliance by preventing revenue loss or duplicate entries after power recovery. |
| Medical Device Configuration Storage | Telecom Line Card Status Backup |
|
Use Scenario: Retaining calibration parameters, user preferences, and alarm thresholds in portable diagnostic equipment. IC Role / Device Role / Timing Role: RECALL-on-power-up restores full functionality within 10 ms, meeting clinical boot-time requirements. Use Value: Supports IEC 62304 Class C software safety by ensuring deterministic initialization without firmware dependency. |
Use Scenario: Preserving port activation status, loopback settings, and error counters in DSLAM line cards during grid fluctuations. IC Role / Device Role / Timing Role: Hardware STORE triggered by HSB enables synchronized backup across 8+ nvSRAMs on shared VCAP. Use Value: Reduces service downtime by restoring line state in <100 ms, avoiding manual re-provisioning. |
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 | 45 ns access, 64 Kbit nvSRAM, but uses battery-backed SRAM architecture with lithium coin cell; no AutoStore or VCAP support. | Requires mechanical battery holder, periodic replacement, and fails open-circuit if battery depletes; unsuitable for sealed enclosures. | Select only where long-term maintenance access is guaranteed and capacitor-based reliability is not required. |
| FM24V06-G | 64 Kbit F-RAM with 15 ns access, unlimited endurance, but lacks AutoStore and requires external power-fail detection circuitry. | No built-in power-loss detection or VCAP interface; demands additional comparator, timer, and control logic for STORE triggering. | Choose when ultra-fast writes and infinite endurance outweigh added board area and design complexity. |
Compared with STK14C88-45I and FM24V06-G, the CY14E064L-SZ45XI uniquely integrates autonomous power-loss response, eliminating batteries and external detection circuitry while maintaining SRAM timing compatibility and deterministic STORE latency.
Availability
CY14E064L-SZ45XI is available at Aetrix Electronics and suitable for industrial PLC data logging, medical device configuration storage, and telecom line card status backup requiring stable component supply and long-lifecycle support.
Supply support for CY14E064L-SZ45XI 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.
The CY14E064L belongs to Cypress's nvSRAM product line, engineered specifically for systems needing instant nonvolatility without batteries, external controllers, or firmware overhead in mission-critical data retention.
FAQ
What is the minimum VCAP capacitor value required for reliable AutoStore operation?
The CY14E064L-SZ45XI requires a 68 µF ±20% low-ESR capacitor on the VCAP pin to guarantee successful STORE during VCC dropout. Using a smaller capacitor risks incomplete STORE due to insufficient energy; tantalum or polymer types are recommended over aluminum electrolytic for stable ESR across temperature.
Can CY14E064L-SZ45XI operate with a 3.3V supply?
No. The CY14E064L-SZ45XI is specified only for 5V ±10% (4.5 V to 5.5 V) operation. Its internal charge pump, QuantumTrap programming voltage, and VSWITCH threshold (~3.6 V) are designed exclusively for 5V systems. Direct 3.3V connection will prevent STORE/RECALL and may damage the device.
How does the HSB pin behave during multi-device STORE synchronization?
When multiple CY14E064L-SZ45XI devices share a common VCAP and wired-OR HSB net, any device detecting VCC dropout pulls HSB LOW, triggering STORE in all devices that have performed a WRITE since last nonvolatile cycle. Each device independently completes its own STORE, with HSB held LOW until completion.
Is the software STORE sequence tolerant of bus noise or timing jitter?
No. The six-address software STORE sequence (0x0000 → 0x0F0F) must be executed as consecutive CE-controlled READs with no intervening WRITEs, address changes, or control pin transitions. Any deviation aborts the sequence; robust implementation requires disabling interrupts and verifying bus stability before initiation.
CY14E064L-SZ45XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 28-SOIC (0.345", 8.77mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 45ns
- Access Time:
- 45 ns
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC
CY14E064L-SZ45XI FAQ
1.How can I place an order for CY14E064L-SZ45XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14E064L-SZ45XI 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 CY14E064L-SZ45XI reliable?
The price and inventory of CY14E064L-SZ45XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14E064L-SZ45XI is usually 5 days.
3.What payment methods are accepted for CY14E064L-SZ45XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14E064L-SZ45XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14E064L-SZ45XI?
CY14E064L-SZ45XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14E064L-SZ45XI 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 CY14E064L-SZ45XI?
For technical support, including CY14E064L-SZ45XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14E064L-SZ45XI requirements.
6.How does Aetrix verify that CY14E064L-SZ45XI is sourced from the original manufacturer or authorized distributors?
All CY14E064L-SZ45XI 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 CY14E064L-SZ45XI meets industry standards.
7.What is the process for return or replacement of CY14E064L-SZ45XI?
All CY14E064L-SZ45XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14E064L-SZ45XI, 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 CY14E064L-SZ45XI part is unused and in its original packaging.
Return procedure for CY14E064L-SZ45XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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