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Infineon Technologies CY14B104M-ZSP25XI
- Part No.:
- CY14B104M-ZSP25XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B104M-ZSP25XI.pdf
- Description:
- IC NVSRAM 4MBIT PAR 54TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,132
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Product details
Overview
CY14B104M-ZSP25XI from Cypress Semiconductor is a 4-Mbit nonvolatile SRAM (256 K × 16) integrated with a full-featured real-time clock, watchdog timer, and alarm functionality. It operates at 3.0 V ±10%, supports 25 ns access time, enables automatic STORE on power-down via VCAP capacitor, and retains data for 20 years. It is used in industrial control systems requiring persistent time-stamped memory during brownout events.
For engineers reviewing the CY14B104M-ZSP25XI datasheet, CY14B104M-ZSP25XI pinout, CY14B104M-ZSP25XI application, or CY14B104M-ZSP25XI equivalent, key selection criteria include ×16 bus width support, RTC interrupt programmability, AutoStore timing behavior, VRTCcap/VRTCbat backup source selection, and HSB-controlled hardware STORE latency.
Technical Context
The device integrates SRAM and QuantumTrap nonvolatile elements in a single die, enabling parallel STORE/RECALL across all 262,144 words. Its RTC includes leap-year tracking, programmable oscillator calibration, and independent alarm/wdog registers mapped into SRAM address space.
AutoStore initiates when VCC drops below VSWITCH, using charge stored on the external VCAP capacitor (0.1 µF typical); software STORE uses a write-sequence to address 0x0000–0x000F, while RECALL occurs automatically on power-up or via software command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 4 Mbit organized as 256 K × 16 - supports 16-bit microprocessor data bus without byte-lane splitting. |
| Access Time | 25 ns - enables direct interface with legacy 40 MHz bus systems without wait states. |
| Supply Voltage | 3.0 V +20% / –10% - compatible with standard 3.3 V rails and tolerant of industrial voltage sag. |
| Data Retention | 20 years at 85°C - ensures long-term logging integrity in unattended remote sensors. |
| STORE Endurance | 1 million cycles - sufficient for daily power-cycle logging over 27 years. |
| RTC Accuracy | ±2 ppm after calibration - achieves <1 sec/month drift with external 32.768 kHz crystal and trim register. |
| Backup Power Source | Capacitor (VCAP) or battery (VRTCbat) - dual-path design eliminates battery replacement in field-deployed equipment. |
Pinout & Package
Package: 54-pin Thin Small Outline Package (TSOP II), RoHS-compliant, industrial temperature range (–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 enables full memory map access in ×16 mode. |
| DQ0–DQ15 | Bidirectional Data I/O | 16-bit parallel data path; BHE/ BLE enable high/low byte writes independently. |
| WE, CE, OE | Control Inputs | Standard SRAM control tri-state logic; OE HIGH disables outputs during writes to prevent bus contention. |
| HSB | I/O Busy/Request | Open-drain output indicates STORE in progress; driven LOW externally to trigger hardware STORE. |
| VRTCcap / VRTCbat | RTC Backup Supply | Exclusive OR selection: VRTCcap powers RTC from charged capacitor; VRTCbat accepts coin-cell input. |
| 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; asserts on alarm, watchdog timeout, or power monitor event. |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatile Storage | Enables infinite SRAM read/write cycles while guaranteeing 1M STORE endurance and 20-year retention without wear leveling. |
| AutoStore on Power Loss | Triggers STORE autonomously when VCC falls below VSWITCH, using energy from VCAP capacitor-no host intervention required. |
| Integrated RTC with Alarm & WDT | Provides calendar-correct timekeeping, periodic interrupts (minutes/hours/days/months), and configurable watchdog reset window. |
| Flexible RTC Backup | Supports either capacitor-based (VRTCcap) or battery-based (VRTCbat) backup-eliminates need for soldered coin cells in cost-sensitive designs. |
| ×16 Bus Interface | Native 16-bit organization avoids glue logic or multiplexing; BHE/ BLE allow byte-granular writes in mixed-data-width systems. |
Applications
| Industrial Data Logger | Smart Energy Meter |
|---|---|
|
Use Scenario: Continuous timestamped sensor data capture during mains power interruption. IC Role / Device Role / Timing Role: nvSRAM stores latest measurement buffer; RTC maintains accurate UTC time during blackout via VCAP. Use Value: Eliminates external RTC + EEPROM combo; guarantees no data loss or time drift across >100,000 power cycles. |
Use Scenario: Billing cycle storage and tamper-proof time-stamping of kWh consumption records. IC Role / Device Role / Timing Role: Stores meter firmware variables and tariff schedules; RTC provides audit-trail timestamps with leap-year accuracy. Use Value: Meets IEC 62056-21 compliance for time-critical billing; avoids battery replacement service calls over 15+ year lifetime. |
| Medical Infusion Pump | Railway Signaling Controller |
|
Use Scenario: Preserving therapy parameters and dose history after unexpected AC failure. IC Role / Device Role / Timing Role: Holds last-delivered volume, rate, and start time; RTC triggers alarm if infusion exceeds scheduled duration. Use Value: Satisfies IEC 62304 Class C safety requirements for nonvolatile state retention without volatile backup capacitors. |
Use Scenario: Logging switch position changes and fault events with precise sequence timing in trackside cabinets. IC Role / Device Role / Timing Role: Stores interlocking logic state snapshots; RTC synchronizes logs across distributed controllers via NTP-assisted calibration. Use Value: Enables EN 50128 SIL-2 traceability by correlating events to sub-second timestamps across geographically dispersed nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM + RTC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-3AJ5F | 2-Mbit (256 K × 8), 45 ns access, no integrated RTC - requires external clock IC and discrete backup. | Lacks alarm/wdog; limited to simpler time-stamp-only use cases without calendar-aware logging. | Select when cost sensitivity outweighs RTC integration and 4-Mbit density is unnecessary. |
| FM31L278-G | 3-Mbit FRAM + RTC, 100 ns access, 3.3 V only, no AutoStore - relies on software-triggered store on power fail detection. | FRAM offers unlimited endurance but lacks hands-off AutoStore; requires host-level brownout monitoring. | Prefer where deterministic low-power write latency matters more than autonomous power-loss response. |
Compared with STK14C88-3AJ5F and FM31L278-G, CY14B104M-ZSP25XI uniquely delivers monolithic 4-Mbit ×16 nvSRAM with fully autonomous RTC-backed STORE, eliminating external components and host firmware complexity for industrial power-resilient logging.
Availability
CY14B104M-ZSP25XI is available at Aetrix Electronics and suitable for industrial data loggers, smart energy meters, medical infusion pumps, and railway signaling controllers requiring stable component supply and long-term lifecycle assurance.
Supply support for CY14B104M-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 communications infrastructure markets.
CY14B104M belongs to the nvSRAM+RTC product line engineered specifically for mission-critical systems needing deterministic nonvolatile storage and precise timekeeping without external support components.
FAQ
What is the function of the HSB pin during normal operation?
The HSB pin serves dual roles: as an input, pulling it LOW initiates a hardware STORE; as an output, it goes LOW during any STORE or RECALL operation to signal busy status. After completion, it returns HIGH via internal 100 kΩ pull-up. It remains HIGH during idle and SRAM read/write cycles unless STORE/RECALL is active.
Can CY14B104M-ZSP25XI operate without a backup capacitor or battery?
Yes, but RTC functionality is disabled. The device operates as a standard 4-Mbit ×16 SRAM with STORE/RECALL controlled exclusively via software or HSB. VRTCcap and VRTCbat pins must be left unconnected, and the RTC registers become inaccessible. AutoStore remains functional only if VCAP is populated.
How does the ×16 configuration affect address and data pin usage?
In ×16 mode, A0–A17 select 262,144 words, DQ0–DQ15 carry full 16-bit data, and BHE/ BLE control high/low byte writes. A18 is unused, and NC pins replace A18/A19 functions. This differs from ×8 mode (CY14B104K), which uses A0–A18 and DQ0–DQ7 with no BHE/ BLE.
What happens if AutoStore is enabled but VCAP is not installed?
If AutoStore is enabled (default) and VCAP is omitted, the device attempts STORE on power loss without sufficient energy, resulting in incomplete or corrupted nonvolatile data. To prevent this, AutoStore must be disabled via the software sequence in the datasheet before first power-up when VCAP is absent.
CY14B104M-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:
- 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-ZSP25XI FAQ
1.How can I place an order for CY14B104M-ZSP25XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B104M-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 CY14B104M-ZSP25XI reliable?
The price and inventory of CY14B104M-ZSP25XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B104M-ZSP25XI is usually 5 days.
3.What payment methods are accepted for CY14B104M-ZSP25XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B104M-ZSP25XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B104M-ZSP25XI?
CY14B104M-ZSP25XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B104M-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 CY14B104M-ZSP25XI?
For technical support, including CY14B104M-ZSP25XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B104M-ZSP25XI requirements.
6.How does Aetrix verify that CY14B104M-ZSP25XI is sourced from the original manufacturer or authorized distributors?
All CY14B104M-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 CY14B104M-ZSP25XI meets industry standards.
7.What is the process for return or replacement of CY14B104M-ZSP25XI?
All CY14B104M-ZSP25XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B104M-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 CY14B104M-ZSP25XI part is unused and in its original packaging.
Return procedure for CY14B104M-ZSP25XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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