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Infineon Technologies CY14B108M-ZSP25XI
- Part No.:
- CY14B108M-ZSP25XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B108M-ZSP25XI.pdf
- Description:
- IC NVSRAM 8MBIT PAR 54TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:194
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Product details
Overview
CY14B108M-ZSP25XI from Cypress Semiconductor is an 8-Mbit nonvolatile SRAM (512 K × 16) with integrated real-time clock, watchdog timer, and alarm functionality. It operates at 3.0 V ±10%, delivers 25 ns access time, supports infinite SRAM read/write cycles, and provides 1 million STORE cycles to QuantumTrap nonvolatile elements with 20-year data retention. Used in industrial control systems requiring persistent time-stamped data logging during power loss.
For engineers reviewing the CY14B108M-ZSP25XI datasheet, CY14B108M-ZSP25XI pinout, CY14B108M-ZSP25XI application, or CY14B108M-ZSP25XI equivalent, key selection criteria include ×16 bus interface support, hardware STORE via HSB pin, RTC backup via VRTCcap/VRTCbat, and AutoStore capacitor-based power-loss recovery.
Technical Context
The device integrates a 512 K × 16 SRAM array with parallel QuantumTrap nonvolatile storage, enabling simultaneous STORE/RECALL across all cells. Its RTC includes leap-year tracking, programmable alarm (minutes/hours/days/months), and a calibrated 32.768 kHz oscillator with Xin/Xout pins.
Power management is dual-path: VCAP supplies energy for AutoStore during VCC dropout, while VRTCcap or VRTCbat independently powers the RTC. The HSB pin serves both as STORE request input and busy status output, with internal weak pull-up and open-drain capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit organized as 512 K × 16 words - enables 16-bit microprocessor interface without byte enable logic overhead |
| Access Time | 25 ns - meets timing requirements for high-speed industrial MCU interfaces operating up to 33 MHz |
| Supply Voltage | 3.0 V +20% / –10% - compatible with standard 3.3 V rail with margin for brown-out tolerance |
| STORE Endurance | 1 million cycles to QuantumTrap - supports daily firmware state saves over 27 years of operation |
| Data Retention | 20 years at TA ≤ 85°C - ensures long-term reliability in unattended industrial deployments |
| RTC Backup | Capacitor (VRTCcap) or battery (VRTCbat) selectable - eliminates need for primary battery in cost-sensitive designs |
| Operating Temp | –40°C to +85°C - qualified for extended industrial temperature range without derating |
Pinout & Package
Package: 54-pin Thin Small Outline Package (TSOP II), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Input | Selects one of 524,288 × 16-bit locations; A18 required for full address space coverage in ×16 mode |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; BHE/ BLE control upper/lower byte writes in mixed-access scenarios |
| HSB | Hardware STORE Control / Busy Indicator | Pulled LOW to initiate STORE; driven LOW internally during STORE execution; weak pull-up maintains HIGH idle state |
| VRTCcap / VRTCbat | RTC Backup Supply | Exclusive selection: capacitor on VRTCcap for low-cost RTC hold-up; battery on VRTCbat for multi-year backup |
| INT | Programmable Interrupt Output | Signals RTC alarm, watchdog timeout, or power monitor event; configurable active-HIGH push-pull or active-LOW open-drain |
| VCAP | AutoStore Energy Storage | Connects external capacitor (≥12 µF, 5.5 V) to supply energy for single STORE during VCC collapse |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatile Storage | Enables true hands-off STORE on power loss without external controller intervention or firmware dependency |
| Software-Controlled STORE/RECALL | Allows deterministic, atomic state capture via write sequence - critical for firmware crash recovery and checkpointing |
| RTC with Leap-Year Tracking | Eliminates manual date rollover correction in embedded logging applications running beyond February 2024 |
| Watchdog Timer + Alarm | Provides dual independent timing supervision: system-level watchdog reset and user-configurable RTC-triggered interrupts |
| ×16 Bus Interface Support | Reduces PCB trace count vs ×8 configuration; BHE/ BLE pins enable selective 8-bit writes within 16-bit word boundary |
Applications
| Industrial PLC Data Logger | Smart Meter Time-Stamped Event Recorder |
|---|---|
Use Scenario: Captures sensor readings and operational states at 100 ms intervals during mains power outage. IC Role / Device Role / Timing Role: nvSRAM stores volatile runtime data; RTC timestamps each record with calendar accuracy. Use Value: Maintains synchronized, gap-free logging across power cycles using AutoStore and 20-year RTC retention. |
Use Scenario: Records tamper events, voltage sags, and phase faults with precise UTC-aligned timestamps. IC Role / Device Role / Timing Role: Acts as time-aware memory buffer; alarm interrupt triggers immediate flash save upon fault detection. Use Value: Enables forensic analysis of grid disturbances with sub-second temporal resolution and leap-year correctness. |
| Medical Infusion Pump State Keeper | Railway Signaling Controller Memory |
Use Scenario: Preserves therapy parameters, dose history, and error logs during battery-switchover or AC failure. IC Role / Device Role / Timing Role: Stores critical treatment context; RECALL on power-up restores safe operational state. Use Value: Meets IEC 62304 Class C software safety requirements via deterministic STORE/RECALL and infinite SRAM cycles. |
Use Scenario: Holds interlocking logic state and signal timing constraints during track-side power interruption. IC Role / Device Role / Timing Role: Provides fail-safe memory with watchdog-triggered reset and RTC-synchronized event sequencing. Use Value: Ensures SIL-4 compliance by guaranteeing memory integrity and time-coherent state recovery after brownouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM with RTC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK15C88-3LF35I | 4-Mbit (256 K × 16), 35 ns access, no integrated RTC, requires external crystal and backup circuitry | Lacks built-in alarm/watchdog; RTC implementation adds board area, BOM cost, and calibration complexity | Choose when only basic nonvolatile storage is needed and RTC can be implemented externally |
| FM31L278-G | 256-Kbit FRAM + RTC, 100 ns access, unlimited endurance, but lower density and no AutoStore capacitor interface | No VCAP-based power-loss STORE; relies on fast FRAM write - unsuitable for large-state snapshot use cases | Prefer for high-write-frequency logging where STORE cycle count exceeds 1M lifetime limit |
Compared with STK15C88-3LF35I and FM31L278-G, CY14B108M-ZSP25XI uniquely combines 8-Mbit ×16 density, 25 ns speed, integrated RTC with alarm/watchdog, and capacitor-backed AutoStore - making it optimal for industrial systems requiring time-stamped, high-volume state persistence without external timing components.
Availability
CY14B108M-ZSP25XI is available at Aetrix Electronics and suitable for industrial PLCs, smart meters, medical infusion pumps, and railway signaling controllers requiring stable component supply and long-term lifecycle support.
Supply support for CY14B108M-ZSP25XI 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 mixed-signal ICs for industrial, automotive, and IoT applications, with emphasis on nonvolatile memory and timing solutions.
CY14B108M belongs to Cypress's nvSRAM product line, engineered specifically for systems needing deterministic, power-loss-resilient memory with integrated timekeeping - eliminating external RTC and backup components in space-constrained designs.
FAQ
What is the function of the VCAP pin, and what capacitor value is required?
The VCAP pin connects to an external capacitor (minimum 12 µF, rated ≥5.5 V) that supplies energy for AutoStore during VCC dropout. When VCC falls below VSWITCH (~2.0 V), the device isolates VCAP and uses its stored charge to complete a full STORE operation to QuantumTrap cells. Using undersized capacitors risks incomplete STORE and data corruption.
Can the RTC operate without a crystal, and what are the timing accuracy specifications?
No - the RTC requires a 32.768 kHz crystal connected between Xin and Xout pins. Accuracy is ±20 ppm over –40°C to +85°C with proper load capacitance (12.5 pF typical). The oscillator includes digital calibration registers allowing ±1.5 ppm fine-tuning via software to compensate for crystal aging or temperature drift.
How does the HSB pin behave during normal operation versus STORE execution?
During idle, HSB is pulled HIGH by an internal ~100 kΩ resistor. When driven LOW externally, it initiates Hardware STORE after tDELAY (max 100 ns); during STORE, HSB is actively driven LOW. After completion, it returns HIGH with a short strong pull-up pulse (tHHHD), then reverts to weak pull-up. It must not be externally pulled LOW during RECALL.
Is the CY14B108M-ZSP25XI pin-compatible with earlier CY14B108M variants like -ZS25XI?
Yes - the -ZSP25XI suffix denotes the same 54-pin TSOP II package, 25 ns speed grade, and industrial temperature range as -ZS25XI. The 'P' indicates lead-free/RoHS compliance per JEDEC J-STD-609, with identical pinout, timing, and electrical behavior. No layout or firmware changes are required for migration.
CY14B108M-ZSP25XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 54-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:
- 512K x 16
- 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:
- 54-TSOP II
CY14B108M-ZSP25XI FAQ
1.How can I place an order for CY14B108M-ZSP25XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B108M-ZSP25XI 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 CY14B108M-ZSP25XI reliable?
The price and inventory of CY14B108M-ZSP25XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B108M-ZSP25XI is usually 5 days.
3.What payment methods are accepted for CY14B108M-ZSP25XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B108M-ZSP25XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B108M-ZSP25XI?
CY14B108M-ZSP25XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B108M-ZSP25XI 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 CY14B108M-ZSP25XI?
For technical support, including CY14B108M-ZSP25XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B108M-ZSP25XI requirements.
6.How does Aetrix verify that CY14B108M-ZSP25XI is sourced from the original manufacturer or authorized distributors?
All CY14B108M-ZSP25XI 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 CY14B108M-ZSP25XI meets industry standards.
7.What is the process for return or replacement of CY14B108M-ZSP25XI?
All CY14B108M-ZSP25XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B108M-ZSP25XI, 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 CY14B108M-ZSP25XI part is unused and in its original packaging.
Return procedure for CY14B108M-ZSP25XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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