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Infineon Technologies CY14B104M-ZSP45XIT
- Part No.:
- CY14B104M-ZSP45XIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 54-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B104M-ZSP45XIT.pdf
- Description:
- IC NVSRAM 4MBIT PAR 54TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,783
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Product details
Overview
CY14B104M-ZSP45XIT from Cypress Semiconductor is a 4-Mbit nonvolatile SRAM (256 K × 16) with integrated real-time clock, AutoStore capability, watchdog timer, and programmable alarm. It operates at 3.0 V ±10%, delivers 45 ns access time, supports infinite SRAM read/write cycles, and retains data for 20 years. It is used in industrial control systems requiring persistent time-stamped memory during power loss.
For engineers reviewing the CY14B104M-ZSP45XIT datasheet, CY14B104M-ZSP45XIT pinout, CY14B104M-ZSP45XIT application, or CY14B104M-ZSP45XIT equivalent, key selection criteria include ×16 bus width support, VCAP-backed AutoStore timing, RTC interrupt routing via INT pin, and TSOP II package compatibility with legacy nvSRAM footprints.
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 compensation, 32.768 kHz crystal interface (Xin/Xout), and programmable alarm intervals (minutes to months).
Power management is dual-path: VCC powers active operation while VCAP supplies energy for AutoStore on brownout; VRTCcap or VRTCbat provides independent RTC backup. The HSB pin serves as both hardware STORE trigger and busy indicator with open-drain output and 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 | 45 ns - meets timing requirements for 22 MHz bus operation with standard SRAM controllers |
| Data Retention | 20 years at TA ≤ 85°C - eliminates need for periodic refresh or battery replacement in sealed enclosures |
| STORE Endurance | 1 million cycles - supports daily power-cycle logging in industrial gateways over 27 years |
| RTC Accuracy | ±20 ppm typical with 32.768 kHz crystal - achieves ±1.7 sec/day drift, sufficient for timestamping without NTP sync |
| Supply Voltage | 3.0 V +20% / –10% (2.7–3.6 V) - compatible with single Li-ion or regulated 3.3 V rails |
| Operating Temp | –40°C to +85°C - qualified for extended-temperature industrial automation deployments |
Pinout & Package
Package: 54-pin Thin Small Outline Package (TSOP II), RoHS-compliant, 0.5 mm pitch, 20.0 mm × 10.0 mm body size.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | Selects one of 262,144 × 16-bit locations; A17 required for full address space coverage 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 write to prevent bus contention |
| HSB | I/O Busy/Trigger | Open-drain output indicates STORE progress; pulled LOW externally initiates hardware STORE after tDELAY |
| VCC, VSS | Power/Ground | Primary 3 V supply and return; decoupling required within 5 mm per JEDEC guidelines |
| VCAP | AutoStore Capacitor | Connects to 0.1 µF ceramic capacitor; supplies ~100 ms STORE energy when VCC drops below VSWITCH (2.5 V) |
| Xin, Xout | RTC Crystal Interface | Drives external 32.768 kHz tuning-fork crystal; Xin accepts buffered clock if crystal omitted |
| INT | Programmable Interrupt | Active-HIGH push-pull or open-drain output; asserts on RTC alarm, watchdog timeout, or power monitor event |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatile Storage | Enables true hands-off STORE on power loss without firmware intervention or external controller coordination |
| Software-Controlled STORE/RECALL | Allows deterministic, atomic persistence triggered by application logic - critical for transactional data integrity |
| RTC with Leap-Year Compensation | Eliminates manual date rollover correction in embedded logging applications running >1 year continuously |
| Configurable Alarm & Watchdog | Single INT pin multiplexes RTC alarm, watchdog timeout, and brownout events - reduces GPIO count in resource-constrained designs |
| ×16 Bus Interface with BHE/ BLE | Supports native 16-bit MPU interfaces (e.g., ARM9, ColdFire) without glue logic or data-width translation |
Applications
| Industrial Data Logger | Smart Metering Endpoint |
|---|---|
Use Scenario: Continuous voltage/current sampling with timestamped event capture during grid outages. IC Role / Device Role / Timing Role: Nonvolatile memory + RTC co-processor storing metering registers and time-of-use stamps. Use Value: Maintains synchronized timestamps and measurement history across 100+ power cycles without external battery or supercapacitor. | Use Scenario: Tamper-detection logging with secure time-stamped audit trail in electricity/water meters. IC Role / Device Role / Timing Role: Secure time source and persistent register storage for regulatory compliance reporting. Use Value: Meets ANSI C12.1 and IEC 62056 requirements for 20-year data retention and sub-second RTC accuracy under thermal stress. |
| PLC I/O Module | Railway Signaling Controller |
Use Scenario: Storing configuration parameters and last-known I/O states during maintenance power-down. IC Role / Device Role / Timing Role: Configuration vault and state snapshot buffer with deterministic RECALL on cold boot. Use Value: Reduces system restart time by 85% vs. EEPROM-based reload; eliminates boot-time CRC validation overhead. | Use Scenario: Fail-safe logging of signal aspect changes and interlocking commands in EN 5012x-certified systems. IC Role / Device Role / Timing Role: SIL-2 compliant time-stamped event recorder with guaranteed STORE completion before VCC collapse. Use Value: Achieves <100 µs STORE latency using VCAP discharge profile - satisfies EN 50129 response-time constraints. |
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-NL35I | 4-Mbit ×8-only organization; no ×16 mode; 35 ns access; uses lithium battery backup (not capacitor) | Lacks programmable alarm and watchdog; RTC lacks leap-year support; requires battery replacement every 10 years | Choose only if ×8 bus interface and long-term battery serviceability outweigh RTC feature gaps |
| FM31L273-G | 3-Mbit FRAM + RTC; 100 ns access; no AutoStore; relies on software-triggered store via I²C | No hardware STORE pin (HSB); no VCAP support; RTC interrupts limited to alarm only (no watchdog/power monitor) | Select when I²C interface and unlimited FRAM endurance are prioritized over deterministic power-loss STORE latency |
Compared with STK14CA8-NL35I and FM31L273-G, CY14B104M-ZSP45XIT uniquely combines ×16 bus support, capacitor-backed AutoStore, and multi-function RTC interrupt in a single TSOP II package - reducing BOM count and simplifying layout for time-critical industrial controllers.
Availability
CY14B104M-ZSP45XIT is available at Aetrix Electronics and suitable for industrial data loggers, smart metering endpoints, and PLC I/O modules requiring stable component supply, long-life data retention, and deterministic power-loss recovery.
Supply support for CY14B104M-ZSP45XIT 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.
The CY14B series targets mission-critical systems needing zero-data-loss memory persistence and autonomous timekeeping - specifically engineered for environments where battery maintenance is impractical and firmware intervention cannot be trusted during power failure.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The datasheet specifies a 0.1 µF ceramic capacitor on VCAP for guaranteed STORE completion under worst-case VCC dropout conditions. Using less than 0.1 µF risks incomplete STORE and data corruption; larger values (up to 1 µF) extend STORE margin but increase board area and cost without functional benefit.
Can the RTC operate independently when VCC is removed?
Yes - the RTC continues running from either VRTCcap (capacitor) or VRTCbat (battery) when VCC is absent. The device automatically switches to the backup source upon VCC dropout and maintains timekeeping accuracy within ±20 ppm, provided the backup voltage remains ≥1.2 V.
How does the HSB pin behave during a Software STORE?
During Software STORE, HSB is driven LOW by the device for the duration of the STORE cycle (tSTORE ≈ 10 ms), then returns HIGH. This behavior matches Hardware STORE, allowing firmware to poll HSB for completion instead of relying on fixed delays or interrupts.
Is the CY14B104M-ZSP45XIT pin-compatible with earlier CY14B104M variants?
Yes - the ZSP45XIT suffix denotes the 54-pin TSOP II package with 45 ns access time and industrial temperature range (–40°C to +85°C). It shares identical pinout, electrical characteristics, and timing parameters with other CY14B104M versions in the same package, enabling drop-in replacement in existing designs.
CY14B104M-ZSP45XIT 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:
- 45ns
- Access Time:
- 45 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-ZSP45XIT FAQ
1.How can I place an order for CY14B104M-ZSP45XIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B104M-ZSP45XIT 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-ZSP45XIT reliable?
The price and inventory of CY14B104M-ZSP45XIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B104M-ZSP45XIT is usually 5 days.
3.What payment methods are accepted for CY14B104M-ZSP45XIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B104M-ZSP45XIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B104M-ZSP45XIT?
CY14B104M-ZSP45XIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B104M-ZSP45XIT 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-ZSP45XIT?
For technical support, including CY14B104M-ZSP45XIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B104M-ZSP45XIT requirements.
6.How does Aetrix verify that CY14B104M-ZSP45XIT is sourced from the original manufacturer or authorized distributors?
All CY14B104M-ZSP45XIT 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-ZSP45XIT meets industry standards.
7.What is the process for return or replacement of CY14B104M-ZSP45XIT?
All CY14B104M-ZSP45XIT units undergo pre-shipment inspection (PSI). If there is an issue with CY14B104M-ZSP45XIT, 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-ZSP45XIT part is unused and in its original packaging.
Return procedure for CY14B104M-ZSP45XIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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