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Infineon Technologies CY14B108M-ZSP25XIT
- Part No.:
- CY14B108M-ZSP25XIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B108M-ZSP25XIT.pdf
- Description:
- IC NVSRAM 8MBIT PAR 54TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,221
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Product details
Overview
CY14B108M-ZSP25XIT from Cypress Semiconductor is an 8-Mbit nonvolatile SRAM (512 K × 16 organization) with integrated real-time clock (RTC), watchdog timer, and alarm functionality. It operates at 3.0 V ±10%, delivers 25 ns access time, supports infinite SRAM read/write cycles, and guarantees 1 million STORE cycles to QuantumTrap nonvolatile elements with 20-year data retention. It is used in industrial control systems requiring persistent time-stamped logging during unexpected power loss.
For engineers reviewing the CY14B108M-ZSP25XIT datasheet, CY14B108M-ZSP25XIT pinout, CY14B108M-ZSP25XIT application, or CY14B108M-ZSP25XIT 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 without external battery.
Technical Context
The device integrates a 512 K × 16 SRAM array with parallel QuantumTrap nonvolatile storage cells, enabling simultaneous STORE/RECALL across all memory locations. Its RTC includes leap-year correction, programmable alarm interrupts (minutes/hours/days/months), and a calibrated 32.768 kHz oscillator with Xin/Xout pins.
Power management is split: VCAP supplies energy for AutoStore during VCC dropout; VRTCcap or VRTCbat maintains RTC operation independently. The HSB pin serves dual role - input to trigger hardware STORE and open-drain output indicating STORE busy status - with internal weak pull-up and tHHHD timing compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (512 K × 16 organization), enabling 16-bit microprocessor bus interfacing without byte-lane splitting. |
| Access Time | 25 ns (tAA), ensuring compatibility with high-speed 40 MHz+ SRAM bus timing in industrial controllers. |
| Nonvolatile Endurance | 1 million STORE cycles to QuantumTrap cells, supporting daily firmware state saves over 27 years of operation. |
| Data Retention | 20 years at +85°C, validated for long-term unpowered storage in remote telemetry nodes. |
| RTC Accuracy | ±2 ppm typical drift with factory-calibrated oscillator, meeting industrial timestamping requirements without external trimming. |
| Supply Voltage | 3.0 V +20% / –10% (2.7 V–3.6 V), compatible with standard 3.3 V LDO rails and tolerant of brown-out conditions. |
| Operating Temperature | –40°C to +85°C industrial grade, qualified for deployment in motor drives and PLC backplanes. |
Pinout & Package
Package: 54-pin Thin Small Outline Package (TSOP II), RoHS-compliant, 0.5 mm pitch, 22.0 mm × 10.0 mm footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Inputs | Select one of 524,288 16-bit words; A18 enables full 512 K × 16 addressing space. |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; BHE/ BLE control upper/lower byte writes in ×16 mode. |
| HSB | Hardware STORE Busy / Trigger | Input: LOW initiates conditional STORE; Output: OPEN-DRAIN LOW = busy, HIGH = idle or complete. |
| VRTCcap / VRTCbat | RTC Backup Supply | Exclusive dual-source RTC power: capacitor-backed (VRTCcap) or battery-backed (VRTCbat); only one connected. |
| Xin / Xout | RTC Crystal Interface | Connects 32.768 kHz tuning-fork crystal; Xin is input, Xout is buffered output driving crystal load. |
| INT | Programmable Interrupt Output | Active-HIGH push-pull or active-LOW open-drain; asserts on RTC alarm, watchdog timeout, or power monitor event. |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore on Power Loss | Uses internal VCAP regulator and external capacitor (≥12 µF) to autonomously store SRAM contents without software or host intervention. |
| RTC with Leap-Year Logic | Hardware-managed calendar corrects February length across century boundaries; no firmware date-handling overhead required. |
| Watchdog Timer with Reset Control | Configurable timeout (16 ms–2.1 s); INT pin asserts on timeout unless cleared by software, preventing runaway firmware execution. |
| Software-Controlled STORE/RECALL | Initiated via specific address write sequence (0x0000–0x000F), enabling deterministic nonvolatile save points in critical state transitions. |
| Hardware STORE Conditional Execution | HSB-triggered STORE executes only if ≥1 SRAM write occurred since last STORE/RECALL, eliminating redundant nonvolatile writes. |
Applications
| Industrial PLC Data Logging | Smart Meter Time-Stamped Events |
|---|---|
|
Use Scenario: Captures sensor readings and operational states during mains power interruption in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile memory + RTC co-processor; stores last valid state and timestamps each log entry with accurate wall-clock time. Use Value: Eliminates need for separate RTC IC and battery-backed RAM, reducing BOM count and PCB area while guaranteeing synchronized time/data persistence. |
Use Scenario: Records tamper events, voltage sags, and tariff switches in utility smart meters with precise UTC-aligned timestamps. IC Role / Device Role / Timing Role: Time-aware nvSRAM; RTC provides traceable time-of-event stamping independent of communication network availability. Use Value: Meets ANSI C12.1 and IEC 62056 standards for metering accuracy by delivering ±2 ppm RTC stability and 20-year data retention without battery replacement. |
| Medical Infusion Pump State Backup | Factory Automation Motion Controller |
|
Use Scenario: Preserves therapy parameters, dose history, and error logs during AC power failure or battery swap in infusion pumps. IC Role / Device Role / Timing Role: Fail-safe memory + clock source; RECALL restores full operational context on power-up; alarm triggers maintenance alerts. Use Value: Enables FDA Class II compliance for data integrity by ensuring zero data loss and auditable time stamps for all critical events. |
Use Scenario: Maintains axis position, motion profile, and fault history in servo drives during brief line dips or emergency stops. IC Role / Device Role / Timing Role: Deterministic STORE/RECALL controller; HSB pin synchronizes nonvolatile save with motion stop command from FPGA or MCU. Use Value: Reduces system recovery time from seconds to sub-millisecond by restoring full motion context without re-homing or recalibration. |
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 | 512 K × 8 organization, 35 ns access, no integrated RTC, requires external crystal and backup battery. | Lacks RTC and alarm functions; suitable only where time-stamping is handled externally. | Choose when cost sensitivity outweighs RTC integration and ×16 bus efficiency is not required. |
| FM24V10-G | F-RAM-based 1 Mbit (128 K × 8), 45 ns access, RTC optional via separate FM31L273 companion IC. | No monolithic RTC; F-RAM endurance exceeds 10¹⁴ cycles but lacks quantum-trap data retention guarantee. | Prefer for ultra-high-write-cycle applications where RTC can be added separately and 20-year retention is secondary. |
Compared with STK15C88-3LF35I and FM24V10-G, CY14B108M-ZSP25XIT uniquely delivers ×16 interface, 25 ns speed, monolithic RTC with alarm/watchdog, and guaranteed 20-year retention - making it optimal for time-critical industrial systems needing minimal external components.
Availability
CY14B108M-ZSP25XIT is available at Aetrix Electronics and suitable for industrial PLCs, smart utility meters, medical infusion pumps, and factory automation controllers requiring stable component supply with long lifecycle assurance.
Supply support for CY14B108M-ZSP25XIT 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 expertise in nonvolatile memory and timing solutions.
CY14B108M belongs to Cypress's nvSRAM product line, engineered specifically for systems demanding concurrent fast SRAM access, deterministic nonvolatile storage, and autonomous timekeeping without external support circuitry.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B108M-ZSP25XIT requires a minimum 12 µF tantalum or polymer capacitor on the VCAP pin to ensure successful STORE completion during VCC dropout. This value is specified in the DC Electrical Characteristics table (page 19 of Rev. *N datasheet) and assumes VCC falling from 2.7 V to VSWITCH (1.5 V) within 100 µs. Lower capacitance risks incomplete STORE and data corruption.
Can the RTC operate independently while the SRAM is disabled?
Yes. The RTC continues running as long as either VRTCcap or VRTCbat is powered, regardless of VCC state or CE pin level. The RTC oscillator, calendar, alarm, and watchdog functions remain fully active and interrupt-capable even when the nvSRAM array is deselected or in standby, enabling always-on timekeeping in low-power modes.
How does the HSB pin behave during power-up and power-down sequences?
At power-up, HSB is internally pulled HIGH after RECALL completes (~10 ms). During power-down, if VCC drops below VSWITCH, the device disconnects VCAP and initiates AutoStore; HSB goes LOW to indicate busy status and returns HIGH upon completion. External pull-up resistors are optional due to internal weak pull-up but recommended for noise immunity in noisy industrial environments.
Is the CY14B108M-ZSP25XIT pin-compatible with earlier CY14B108M variants?
Yes. The CY14B108M-ZSP25XIT uses the same 54-pin TSOP II package and identical pinout as other CY14B108M variants (e.g., CY14B108M-ZSP45XI). All signal names, electrical characteristics, and timing parameters match Rev. *N datasheet specifications; no layout changes are needed when upgrading from 45 ns to 25 ns versions.
CY14B108M-ZSP25XIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 54-TSOP (0.400", 10.16mm 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:
- 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-ZSP25XIT FAQ
1.How can I place an order for CY14B108M-ZSP25XIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B108M-ZSP25XIT 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-ZSP25XIT reliable?
The price and inventory of CY14B108M-ZSP25XIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B108M-ZSP25XIT is usually 5 days.
3.What payment methods are accepted for CY14B108M-ZSP25XIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B108M-ZSP25XIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B108M-ZSP25XIT?
CY14B108M-ZSP25XIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B108M-ZSP25XIT 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-ZSP25XIT?
For technical support, including CY14B108M-ZSP25XIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B108M-ZSP25XIT requirements.
6.How does Aetrix verify that CY14B108M-ZSP25XIT is sourced from the original manufacturer or authorized distributors?
All CY14B108M-ZSP25XIT 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-ZSP25XIT meets industry standards.
7.What is the process for return or replacement of CY14B108M-ZSP25XIT?
All CY14B108M-ZSP25XIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B108M-ZSP25XIT, 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-ZSP25XIT part is unused and in its original packaging.
Return procedure for CY14B108M-ZSP25XIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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