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Infineon Technologies CY14B104M-ZSP25XIT
- Part No.:
- CY14B104M-ZSP25XIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B104M-ZSP25XIT.pdf
- Description:
- IC NVSRAM 4MBIT PAR 54TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,281
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Product details
Overview
CY14B104M-ZSP25XIT from Cypress Semiconductor is a 4-Mbit nonvolatile SRAM (256 K × 16) with integrated real-time clock, watchdog timer, and alarm functionality. It operates at 3.0 V ±10%, supports 25 ns access time, delivers 20-year data retention, and performs up to 1 million STORE cycles to QuantumTrap nonvolatile elements. Used in industrial control systems requiring persistent time-stamped data logging during power loss.
For engineers reviewing the CY14B104M-ZSP25XIT datasheet, CY14B104M-ZSP25XIT pinout, CY14B104M-ZSP25XIT application, or CY14B104M-ZSP25XIT equivalent, key selection considerations include ×16 bus width support, hardware STORE via HSB pin, RTC backup via VRTCcap/VRTCbat, and AutoStore activation on VCC drop below VSWITCH.
Technical Context
The device integrates a 256 K × 16 SRAM array with parallel QuantumTrap nonvolatile storage, enabling simultaneous STORE/RECALL across all cells. Its RTC includes leap-year correction, programmable alarm (minutes/hours/days/months), and a calibrated 32.768 kHz oscillator with Xin/Xout pins.
Power management is dual-path: VCAP supplies charge for AutoStore during VCC collapse, while VRTCcap or VRTCbat independently powers the RTC. The HSB pin serves both as STORE trigger input and busy-status open-drain output with internal 100 kΩ pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit organized as 256 K × 16 words - enables 16-bit microprocessor interface without byte-lane splitting. |
| Access Time | 25 ns - meets timing requirements for high-speed 33 MHz ISA or legacy industrial MPU buses. |
| Data Retention | 20 years at industrial temperature range - ensures long-term timestamped log integrity without battery replacement. |
| STORE Endurance | 1 million cycles to QuantumTrap - supports daily power-cycle logging for >2,700 years of operation. |
| RTC Accuracy | ±20 ppm over –40°C to +85°C - achieves <1.7 sec/day drift for uncalibrated operation with 32.768 kHz crystal. |
| Supply Voltage | 3.0 V ±10% (VCC) - compatible with standard 3.3 V LDOs with 10% tolerance margin. |
| Backup Options | Capacitor (VRTCcap) or battery (VRTCbat) - allows flexible RTC holdover design without primary power dependency. |
Pinout & Package
Package: 54-pin Thin Small Outline Package (TSOP II), RoHS-compliant, industrial temperature grade (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Input | 18-bit address bus for 256 K-word addressing; A17 required for full memory map access. |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; BHE/ BLE control upper/lower byte writes in ×16 mode. |
| HSB | I/O (Open-Drain) | Hardware STORE request input and busy status indicator; driven LOW during STORE execution. |
| VRTCcap / VRTCbat | RTC Backup Supply | Exclusive-use pins: only one connected; VRTCcap requires external capacitor, VRTCbat accepts coin cell. |
| Xin / Xout | Crystal Interface | Connects to 32.768 kHz tuning-fork crystal; internal oscillator circuit eliminates external load capacitors. |
| INT | Interrupt Output | Programmable active-HIGH push-pull or active-LOW open-drain output for alarm/watchdog/power events. |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore on Power Loss | Self-triggered when VCC drops below VSWITCH; uses charge from VCAP capacitor - no host intervention required. |
| Software STORE/RECALL | Initiated via specific address write sequence - enables deterministic nonvolatile save points in firmware-controlled workflows. |
| RTC with Alarm & Watchdog | Independent timekeeping with programmable periodic interrupts and system reset capability - reduces need for external timers. |
| QuantumTrap Nonvolatile Technology | Eliminates wear-out mechanisms of flash/EEPROM - supports infinite SRAM reads/writes and 1M STORE cycles. |
| Industrial Temperature Support | Guaranteed operation from –40°C to +85°C - suitable for uncontrolled cabinet environments in PLCs and HMIs. |
Applications
| Industrial Data Logger | PLC Real-Time Event Recorder |
|---|---|
Use Scenario: Continuous timestamped sensor data capture during mains power interruption. IC Role / Device Role / Timing Role: nvSRAM stores volatile process data; RTC maintains accurate wall-clock time and triggers alarm on scheduled log flush. Use Value: Preserves synchronized event history across power cycles without external battery-backed RAM or separate RTC IC. | Use Scenario: Recording machine state transitions (e.g., start/stop, fault codes) with precise millisecond timestamps. IC Role / Device Role / Timing Role: Acts as time-stamped ring buffer; RECALL restores last known state on cold boot; watchdog resets hung logic. Use Value: Enables deterministic forensic analysis of equipment failures using internally consistent time references. |
| Smart Meter Firmware Log | Medical Device Audit Trail |
Use Scenario: Storing tamper-detection events, calibration logs, and tariff-switch timestamps in utility meters. IC Role / Device Role / Timing Role: Provides secure, battery-free timekeeping and nonvolatile storage; alarm signals meter firmware to initiate secure upload. Use Value: Meets ANSI C12.1/C12.20 requirements for time-critical audit data retention without consumable batteries. | Use Scenario: Capturing operator actions, therapy parameters, and error conditions in infusion pumps or diagnostic analyzers. IC Role / Device Role / Timing Role: Stores FDA 21 CFR Part 11-compliant audit trail with cryptographically verifiable timestamps. Use Value: Ensures regulatory compliance by maintaining immutable, time-synchronized operational records independent of main system power. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM-with-RTC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14CA8-NF55I | 4-Mbit ×8-only configuration; no RTC; uses NVSRAM with lithium battery backup instead of capacitor-based AutoStore. | Lacks integrated timekeeping - requires external RTC and battery management circuitry. | Select when RTC is already present in system and only nonvolatile SRAM is needed. |
| DS1249Y-120+T&R | 2-Mbit ×8 nvSRAM with integrated RTC and lithium battery; 120 ns access time; no AutoStore or HSB pin. | Slower access limits use in real-time control loops; battery-dependent RTC lacks capacitor option. | Choose for cost-sensitive designs where 120 ns latency is acceptable and battery maintenance is feasible. |
Compared with STK14CA8-NF55I and DS1249Y-120+T&R, CY14B104M-ZSP25XIT uniquely combines ×16 bus width, 25 ns speed, capacitor-backed AutoStore, and fully programmable RTC-making it optimal for new industrial controllers needing compact, low-maintenance time-aware memory.
Availability
CY14B104M-ZSP25XIT is available at Aetrix Electronics and suitable for industrial data loggers, PLC event recorders, and smart meter firmware storage requiring stable component supply and long-term lifecycle support.
Supply support for CY14B104M-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 emphasis on integration and power efficiency.
This part belongs to the QuantumTrap nvSRAM product line, engineered to replace battery-backed SRAM and discrete RTCs in mission-critical systems demanding zero-maintenance time-stamped nonvolatile storage.
FAQ
What is the function of the HSB pin?
The HSB pin serves dual roles: as an input to trigger hardware STORE when pulled LOW, and as an open-drain output indicating STORE/RECALL busy status when driven LOW. After completion, it returns HIGH via internal 100 kΩ pull-up. It does not require external pull-up unless noise immunity is critical in noisy industrial environments.
Can CY14B104M-ZSP25XIT operate without a backup capacitor or battery?
Yes - the nvSRAM core functions normally without VCAP, VRTCcap, or VRTCbat. However, AutoStore will fail silently if enabled without VCAP, and RTC stops when VCC is removed. For RTC-only operation, VRTCcap must be connected to a ≥0.1 µF capacitor; for extended holdover, VRTCbat accepts 3 V coin cells.
How does the ×16 organization affect address and data pin usage?
In ×16 mode, A0–A17 are used (18 address lines), DQ0–DQ15 carry full 16-bit words, and BHE/ BLE enable upper/lower bytes. This differs from ×8 mode (CY14B104K), which uses A0–A18 and DQ0–DQ7. Pin compatibility between variants is partial - CE/OE/WE/HSB/INT/VCC/VSS are shared, but address/data width differs.
Is the RTC calendar compliant with leap year rules?
Yes - the embedded RTC implements full Gregorian calendar logic, automatically adjusting February length for leap years (divisible by 4, except century years not divisible by 400). Date registers update correctly across year boundaries, including century rollovers, without host software intervention.
CY14B104M-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:
- 4Mbit
- Memory Organization:
- 256K 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
CY14B104M-ZSP25XIT FAQ
1.How can I place an order for CY14B104M-ZSP25XIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B104M-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 CY14B104M-ZSP25XIT reliable?
The price and inventory of CY14B104M-ZSP25XIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B104M-ZSP25XIT is usually 5 days.
3.What payment methods are accepted for CY14B104M-ZSP25XIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B104M-ZSP25XIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B104M-ZSP25XIT?
CY14B104M-ZSP25XIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B104M-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 CY14B104M-ZSP25XIT?
For technical support, including CY14B104M-ZSP25XIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B104M-ZSP25XIT requirements.
6.How does Aetrix verify that CY14B104M-ZSP25XIT is sourced from the original manufacturer or authorized distributors?
All CY14B104M-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 CY14B104M-ZSP25XIT meets industry standards.
7.What is the process for return or replacement of CY14B104M-ZSP25XIT?
All CY14B104M-ZSP25XIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B104M-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 CY14B104M-ZSP25XIT part is unused and in its original packaging.
Return procedure for CY14B104M-ZSP25XIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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