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Infineon Technologies CY14B108L-ZS20XI
- Part No.:
- CY14B108L-ZS20XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B108L-ZS20XI.pdf
- Description:
- IC NVSRAM 8MBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,101
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Product details
Overview
CY14B108L-ZS20XI from Cypress Semiconductor is an 8-Mbit nonvolatile SRAM (nvSRAM) with QuantumTrap technology, organized as 1024 K × 8, 20 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, supports software/hardware STORE/RECALL, and delivers 20-year data retention with 1 million STORE cycles - deployed in industrial PLCs, medical data loggers, and telecom control plane memory.
For engineers reviewing the CY14B108L-ZS20XI datasheet, CY14B108L-ZS20XI pinout, CY14B108L-ZS20XI application, or CY14B108L-ZS20XI equivalent, key selection criteria include AutoStore timing dependency on VCAP capacitance, HSB-driven hardware STORE arbitration, ×8 vs ×16 configuration pin compatibility, and absence of functional AutoStore Disable per errata.
Technical Context
The CY14B108L-ZS20XI integrates parallel SRAM and QuantumTrap nonvolatile cells per bit, enabling simultaneous STORE/RECALL across all 8 Mbits. Its architecture inhibits SRAM access during STORE/RECALL, uses internal voltage regulation to charge VCAP, and requires tDELAY (≥100 ns) between HSB assertion and STORE initiation.
AutoStore triggers when VCC drops below VSWITCH (2.7 V min), disconnecting VCAP from VCC and powering the STORE operation from the capacitor. The HSB pin serves dual roles: open-drain busy indicator (driven LOW during STORE) and active-LOW STORE request input, with internal 100 kΩ pull-up and tHHHD (100 ns) high-drive pulse post-STORE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1024 K × 8 organization); enables byte-wide interface without external data multiplexing. |
| Access Time | 20 ns; guarantees SRAM read latency under worst-case industrial temperature and voltage conditions. |
| Supply Voltage | 3.0 V ±10% / +20%; operates directly from standard 3.3 V rails with margin for brown-out resilience. |
| Data Retention | 20 years at +85°C; validated retention without refresh, critical for unattended field-deployed systems. |
| STORE Endurance | 1 million cycles; defines maximum guaranteed nonvolatile write count before QuantumTrap wear-out. |
| Operating Temperature | –40°C to +85°C; qualified for industrial environments without derating or thermal management overhead. |
| VCAP Capacitance | 0.1 µF ceramic; minimum value required to complete AutoStore at VCC = 2.7 V and T = +85°C. |
Pinout & Package
Package: 44-pin Thin Small Outline Package (TSOP Type II), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address Input | 20-bit address bus for 1024 K × 8 mode; A19 used only in ×8 configuration (not ×16). |
| DQ0–DQ7 | Bidirectional Data I/O | 8-bit parallel data path; tristated when OE HIGH or during STORE/RECALL. |
| WE | Write Enable (Active LOW) | Controls SRAM write latching; must be held HIGH during AutoStore to avoid bus contention. |
| CE | Chip Enable (Active LOW) | Selects device for read/write; deassertion disables outputs and reduces standby current. |
| OE | Output Enable (Active LOW) | Enables DQ drivers during reads; HIGH forces high-impedance state independent of CE/WE. |
| HSB | Hardware STORE Busy | Open-drain status output (LOW = STORE in progress); also accepts external LOW pulse to trigger STORE. |
| VCAP | AutoStore Capacitor Supply | Internal regulator output; connects to 0.1 µF capacitor to sustain STORE during VCC collapse. |
| VCC / VSS | Power / Ground | Single 3 V supply domain; VSS must be low-inductance connection to minimize STORE timing jitter. |
Key Features
| Feature | Design Value |
|---|---|
| Hands-off AutoStore | Zero-software intervention STORE on power loss, enabled by internal VCAP regulation and VSWITCH detection. |
| Software STORE/RECALL | Non-disruptive firmware-controlled STORE/RECALL via address sequence, usable during system idle. |
| Infinite SRAM endurance | Unlimited read/write cycles to volatile array - no wear leveling or ECC required for SRAM operations. |
| Hardware STORE arbitration | HSB pin synchronizes external STORE requests with ongoing SRAM writes, preventing data corruption. |
| Industrial qualification | Full temperature and voltage range validation per AEC-Q100 stress test profiles for long-life embedded use. |
Applications
| Industrial Programmable Logic Controllers | Medical Diagnostic Data Loggers |
|---|---|
|
Use Scenario: Retaining real-time I/O state and configuration during unexpected AC mains failure in factory automation controllers. IC Role / Device Role / Timing Role: Nonvolatile memory buffer that captures last valid scan cycle before power collapse, recalled on reboot. Use Value: Eliminates need for battery-backed SRAM or external EEPROM write sequencing, reducing BOM cost and field failure risk. |
Use Scenario: Storing patient vital sign snapshots and calibration parameters in portable ECG monitors during battery swap. IC Role / Device Role / Timing Role: Zero-latency recall memory ensuring uninterrupted waveform continuity across power transitions. Use Value: Guarantees 20-year data integrity without periodic refresh, meeting FDA Class II device data retention requirements. |
| Telecom Base Station Control Plane | Avionics Flight Data Recorders |
|
Use Scenario: Preserving routing table entries and session state during redundant power module switchover in 5G radio units. IC Role / Device Role / Timing Role: High-speed nvSRAM acting as failover cache for control processor registers and packet buffers. Use Value: Achieves sub-100 µs STORE completion (tHSTORE ≤ 85 µs) - faster than flash-based alternatives by 3 orders of magnitude. |
Use Scenario: Capturing critical flight parameters (altitude, attitude, engine metrics) during emergency power loss in commercial aircraft. IC Role / Device Role / Timing Role: Crash-survivable memory element storing last 25 hours of flight data without backup battery. Use Value: Meets DO-160 Section 22 crashworthiness standards via capacitor-powered STORE, eliminating battery maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-3J | 55 ns access time, 3.3 V ±10%, 10-year retention, no HSB pin, requires external STORE command pulse. | Lacks hardware STORE arbitration and AutoStore; requires MCU GPIO coordination for STORE timing. | Choose when cost sensitivity outweighs STORE latency and system-level STORE reliability requirements. |
| FM24V10-G | F-RAM-based, 55 ns access, unlimited STORE endurance, but 10-year retention at +70°C only, no VCAP dependency. | No capacitor or voltage monitoring needed; however, retention spec does not cover full industrial temperature range. | Prefer where frequent STOREs dominate (e.g., sensor sampling), but verify retention compliance at +85°C for mission-critical use. |
Compared with STK14C88-3J and FM24V10-G, CY14B108L-ZS20XI uniquely combines 20 ns speed, 20-year retention across –40°C to +85°C, and deterministic AutoStore via integrated VCAP regulation - making it optimal for systems requiring guaranteed data capture during rapid, uncontrolled power loss.
Availability
CY14B108L-ZS20XI is available at Aetrix Electronics and suitable for industrial programmable logic controllers, medical diagnostic data loggers, and telecom base station control plane designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for CY14B108L-ZS20XI 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 headquarters in San Jose, CA.
The CY14B nvSRAM product line targets systems needing instant-on nonvolatility without batteries - specifically engineered for deterministic STORE/RECALL in power-fail-prone infrastructure equipment.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B108L-ZS20XI requires a minimum 0.1 µF ceramic capacitor on the VCAP pin to guarantee successful AutoStore at VCC = 2.7 V and +85°C. Lower values risk incomplete STORE due to insufficient hold-up energy; X7R dielectric is recommended for stable capacitance over temperature and bias.
Does the CY14B108L-ZS20XI support ×16 data bus configuration?
No - CY14B108L-ZS20XI is the ×8 variant (1024 K × 8), with pins A0–A19 and DQ0–DQ7. The ×16 variant is CY14B108N (512 K × 16), which uses BHE/ BLE and DQ0–DQ15. Pinouts and address mapping are incompatible between L and N suffixes.
How does the HSB pin behave during a Software STORE?
During Software STORE, HSB is driven LOW by the device for the full STORE duration (tHSTORE ≤ 85 µs), then pulsed HIGH for tHHHD (100 ns) with full drive strength before reverting to weak internal pull-up. This behavior matches Hardware STORE and AutoStore, enabling uniform system-level busy detection.
Is the AutoStore Disable feature functional on this device?
No - per Errata on page 24 of datasheet 001-45523 Rev. *P, the AutoStore Disable feature does not work. If VCAP is unconnected, AutoStore attempts will fail and corrupt data; therefore, either connect the 0.1 µF capacitor or implement system-level power monitoring to suppress STORE requests.
CY14B108L-ZS20XI 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:
- 20ns
- Access Time:
- 20 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-ZS20XI FAQ
1.How can I place an order for CY14B108L-ZS20XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B108L-ZS20XI 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-ZS20XI reliable?
The price and inventory of CY14B108L-ZS20XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B108L-ZS20XI is usually 5 days.
3.What payment methods are accepted for CY14B108L-ZS20XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B108L-ZS20XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B108L-ZS20XI?
CY14B108L-ZS20XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B108L-ZS20XI 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-ZS20XI?
For technical support, including CY14B108L-ZS20XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B108L-ZS20XI requirements.
6.How does Aetrix verify that CY14B108L-ZS20XI is sourced from the original manufacturer or authorized distributors?
All CY14B108L-ZS20XI 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-ZS20XI meets industry standards.
7.What is the process for return or replacement of CY14B108L-ZS20XI?
All CY14B108L-ZS20XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B108L-ZS20XI, 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-ZS20XI part is unused and in its original packaging.
Return procedure for CY14B108L-ZS20XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY14B108L-ZS20XI Tags
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M24C02-WMN6TP
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