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Infineon Technologies CY14B108L-ZS25XI
- Part No.:
- CY14B108L-ZS25XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B108L-ZS25XI.pdf
- Description:
- IC NVSRAM 8MBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:4,915
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Product details
Overview
CY14B108L-ZS25XI from Cypress Semiconductor is an 8-Mbit nonvolatile SRAM (nvSRAM) with QuantumTrap technology, organized as 1024 K × 8, supporting 25 ns access time, single 3 V (+20% / –10%) supply, and industrial temperature range (–40°C to +85°C). It performs automatic STORE on power-down using a VCAP capacitor and supports software/hardware-initiated STORE/RECALL for data retention in mission-critical logging and control systems.
For engineers reviewing the CY14B108L-ZS25XI datasheet, CY14B108L-ZS25XI pinout, CY14B108L-ZS25XI application, or CY14B108L-ZS25XI equivalent, key selection criteria include AutoStore reliability, infinite SRAM read/write endurance, 20-year nonvolatile data retention, 1 million STORE cycles, and compatibility with legacy parallel SRAM interfaces in industrial PLCs and telecom line cards.
Technical Context
This nvSRAM integrates standard fast SRAM with embedded QuantumTrap nonvolatile elements per cell-enabling parallel STORE/RECALL across all 8 Mbits without block erasure. The device uses internal voltage regulation to drive VCAP during power loss and monitors VCC against VSWITCH (2.7 V typical) to trigger AutoStore.
It operates in ×8 configuration only for this variant (CY14B108L), with address pins A0–A19, bidirectional DQ0–DQ7, and dedicated control signals CE, OE, WE, HSB, and VCAP. BHE/ BLE are not used, confirming its 8-bit bus interface and exclusion from ×16 mode operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1024 K × 8), providing 1 MiB of directly addressable byte-wide SRAM space. |
| Access Time | 25 ns max - enables direct replacement of standard 25 ns SRAMs in legacy 8-bit microcontroller buses. |
| Supply Voltage | 3.0 V ±10% (2.7 V to 3.3 V) - compatible with industrial 3.3 V logic rails and eliminates need for level shifters. |
| Data Retention | 20 years at +85°C - ensures long-term firmware or calibration data persistence without battery backup. |
| STORE Endurance | 1 million cycles - sufficient for daily power-cycle logging in energy meters or industrial controllers. |
| Operating Temperature | –40°C to +85°C - qualified for deployment in uncontrolled industrial enclosures and outdoor base stations. |
| AutoStore Trigger | VCC < VSWITCH (2.7 V typ.) - initiates seamless STORE using charge stored on external VCAP capacitor (0.1 µF). |
Pinout & Package
Package: 44-pin Thin Small Outline Package (TSOP II), Type II, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Input | 20-bit address bus for 1024 K × 8 addressing; full decoding enables random access without external logic. |
| DQ0–DQ7 | I/O | Bidirectional 8-bit data bus; tristated when OE HIGH or during STORE/RECALL to prevent bus contention. |
| CE, OE, WE | Input | Standard SRAM control trio: CE enables chip select, OE gates output drivers, WE controls write latching. |
| VCAP | Power Supply | Connects to 0.1 µF storage capacitor; supplies regulated current for STORE during VCC brownout. |
| HSB | I/O (open-drain) | Indicates STORE busy (driven LOW); also accepts external LOW pulse to initiate hardware STORE. |
| VCC, VSS | Power | Single 3 V supply and ground; no separate I/O or core voltage rails required. |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatile Cell | Embedded per-cell storage eliminates need for external EEPROM/NVRAM and avoids wear leveling complexity. |
| AutoStore on Power Loss | Zero-software intervention STORE triggered by VCC drop below 2.7 V, using on-chip regulator and external VCAP. |
| Software STORE/RECALL | Controlled via address-based command sequences - enables deterministic data capture before controlled shutdown. |
| Infinite SRAM Read/Write Cycles | Enables continuous real-time data buffering (e.g., sensor streams) without degradation over product lifetime. |
| Hardware STORE Busy Signal (HSB) | Open-drain status pin provides system-level visibility into STORE progress and prevents premature access. |
Applications
| Industrial PLC Data Logging | Telecom Line Card Configuration Storage |
|---|---|
|
Use Scenario: Storing runtime I/O state and fault history in programmable logic controllers during unexpected AC mains failure. IC Role / Device Role / Timing Role: Nonvolatile memory buffer that captures last valid controller state before power collapse, using AutoStore. Use Value: Eliminates supercapacitor or battery backup subsystems while guaranteeing 20-year retention of critical event logs. |
Use Scenario: Preserving port mapping, QoS policies, and alarm thresholds in carrier-grade DSLAM line cards during firmware updates. IC Role / Device Role / Timing Role: Parallel-interface nvSRAM serving as configuration scratchpad and persistent store, accessed via MPU bus. Use Value: Enables zero-downtime reconfiguration by recalling validated settings within tHRECALL (max 20 ms) after power restoration. |
| Medical Infusion Pump Calibration Data | Smart Grid Energy Meter Firmware Parameters |
|
Use Scenario: Holding calibrated flow rate coefficients and safety limits in Class II medical devices subject to IEC 62304 requirements. IC Role / Device Role / Timing Role: Tamper-resistant, long-life nonvolatile storage for regulatory-mandated calibration records. Use Value: Meets 20-year data retention mandate without periodic refresh or external NV memory, reducing BOM count. |
Use Scenario: Storing tariff tables, metering constants, and cryptographic keys in ANSI C12.22-compliant electricity meters. IC Role / Device Role / Timing Role: Secure, high-endurance storage for parameters updated infrequently but requiring guaranteed persistence. Use Value: Supports 1 million STORE cycles - sufficient for >27 years of daily firmware parameter updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-3AJ | 55 ns access time; 3.3 V only; no AutoStore - requires external controller-driven STORE sequence. | Lacks hands-off power-loss STORE; demands additional GPIO and firmware overhead for data protection. | Choose only if system already implements STORE sequencing and timing budget allows slower access. |
| FM24V10-G | F-RAM-based; 45 ns access; unlimited STORE endurance; no VCAP capacitor required. | No power-loss STORE latency or capacitor sizing constraints; lower standby current than nvSRAM. | Prefer where frequent STOREs (>1M/day) or capacitor-free layout is mandatory; verify F-RAM soft-error immunity for target environment. |
Compared with STK14C88-3AJ and FM24V10-G, CY14B108L-ZS25XI uniquely balances 25 ns speed, capacitor-assisted AutoStore simplicity, and 20-year retention - making it optimal for cost-sensitive industrial designs needing plug-and-play nonvolatility without firmware redesign.
Availability
CY14B108L-ZS25XI is available at Aetrix Electronics and suitable for industrial PLCs, telecom line cards, medical infusion pumps, and smart grid energy meters requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for CY14B108L-ZS25XI 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) is a fabless semiconductor company specializing in memory, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.
CY14B108L belongs to Cypress's nvSRAM product line, engineered specifically to replace battery-backed SRAM in harsh-environment applications where maintenance-free, long-term data retention is mandatory.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B108L-ZS25XI requires a 0.1 µF ceramic capacitor on the VCAP pin, rated for ≥10 V, placed within 5 mm of the package. This value ensures sufficient charge to complete one full STORE cycle during VCC dropout down to 2.7 V. Larger values do not improve reliability and may delay RECALL startup due to extended VCAP recharge time.
Can CY14B108L-ZS25XI be used in ×16 mode?
No. The CY14B108L-ZS25XI is factory-configured for 1024 K × 8 organization only. Its pinout lacks BHE/ BLE support in this variant, and address range A0–A19 is fixed for byte-wide access. The ×16 version is the distinct part number CY14B108N, which uses different pin assignments and package markings.
How does the HSB pin behave during a Software STORE?
During a Software STORE, HSB is driven LOW by the device for the entire duration of the STORE cycle (tSTORE = 20 ms max), then driven HIGH for tHHHD (100 ns min) with full drive strength before reverting to weak internal pull-up. This behavior is identical to Hardware STORE and AutoStore, enabling consistent system-level busy monitoring regardless of initiation method.
Is the AutoStore Disable feature functional in CY14B108L-ZS25XI?
No. Per Errata on page 24 of datasheet 001-45523 Rev. *P, the AutoStore Disable feature is nonfunctional in all CY14B108L/CY14B108N silicon revisions. If VCAP is unconnected, AutoStore attempts to execute with insufficient charge, corrupting stored data. Therefore, either connect the 0.1 µF capacitor or implement system-level power monitoring to disable writes before brownout.
CY14B108L-ZS25XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-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:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 25ns
- Access Time:
- 25 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
CY14B108L-ZS25XI FAQ
1.How can I place an order for CY14B108L-ZS25XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B108L-ZS25XI 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 CY14B108L-ZS25XI reliable?
The price and inventory of CY14B108L-ZS25XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B108L-ZS25XI is usually 5 days.
3.What payment methods are accepted for CY14B108L-ZS25XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B108L-ZS25XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B108L-ZS25XI?
CY14B108L-ZS25XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B108L-ZS25XI 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 CY14B108L-ZS25XI?
For technical support, including CY14B108L-ZS25XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B108L-ZS25XI requirements.
6.How does Aetrix verify that CY14B108L-ZS25XI is sourced from the original manufacturer or authorized distributors?
All CY14B108L-ZS25XI 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 CY14B108L-ZS25XI meets industry standards.
7.What is the process for return or replacement of CY14B108L-ZS25XI?
All CY14B108L-ZS25XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B108L-ZS25XI, 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 CY14B108L-ZS25XI part is unused and in its original packaging.
Return procedure for CY14B108L-ZS25XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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