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Infineon Technologies CY14B104L-ZS45XI
- Part No.:
- CY14B104L-ZS45XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B104L-ZS45XI.pdf
- Description:
- IC NVSRAM 4MBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:1,294
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Product details
Overview
CY14B104L-ZS45XI from Cypress Semiconductor is a 4 Mbit (512K × 8) nonvolatile SRAM with QuantumTrap® technology, operating at 3V ±10%, 45 ns access time, and supporting AutoStore® on power loss via VCAP capacitor. It performs infinite SRAM read/write cycles, 200,000 STORE cycles, and retains data for 20 years - deployed in industrial PLCs for real-time control state preservation during unexpected power failure.
For engineers reviewing the CY14B104L-ZS45XI datasheet, CY14B104L-ZS45XI pinout, CY14B104L-ZS45XI application, or CY14B104L-ZS45XI equivalent, key selection criteria include x8 bus interface compatibility, HSB-driven hardware store timing, VCAP capacitance requirements (0.1 µF), and TSOP II/48-FBGA package fit for legacy board layouts.
Technical Context
The CY14B104L-ZS45XI integrates standard SRAM and QuantumTrap nonvolatile cells in each memory location, enabling parallel STORE/RECALL across all 524,288 bytes. Its dual-mode operation supports both software-initiated (6-address sequence) and hardware-triggered (HSB pin) STORE, with automatic RECALL on VCC rise above VSWITCH.
AutoStore activation requires no external controller intervention: internal regulation charges VCAP from VCC during normal operation, and upon VCC drop below 2.7 V, the device disconnects VCAP and executes a full STORE using stored charge. The HSB pin serves as both input trigger and open-drain busy indicator, with tDELAY = 100 ns before STORE initiation after HSB assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Mbit organized as 512K × 8 - matches 8-bit microcontroller data buses without width conversion logic. |
| Access Time | 45 ns - ensures timing compliance with 22 MHz bus clocks in industrial MCU systems. |
| Supply Voltage | 3.0 V ±10% (2.7–3.6 V) - compatible with single-supply 3.3 V systems without LDO regulation. |
| STORE Cycles | 200,000 - supports >10 years of daily power-cycle logging in energy metering applications. |
| Data Retention | 20 years at 85°C - validated for extended deployment in uncooled industrial enclosures. |
| VCAP Requirement | 0.1 µF ceramic capacitor - enables autonomous STORE during <100 µs brownout events. |
| Operating Temp | –40°C to +85°C - qualified for industrial temperature range per JEDEC JESD22-A104. |
Pinout & Package
Package: 44-pin TSOP II (Type I), 400 mil width, RoHS-compliant, lead-free. Pin pitch: 0.8 mm. Mounting compatible with standard reflow profiles for Pb-free solder.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A18 | Address Input | 19-bit address bus for 524,288-byte addressing; A17–A18 are NC in x8 mode per datasheet Figure 2. |
| DQ0–DQ7 | Bidirectional Data I/O | 8-bit parallel data path; tri-stated when OE HIGH or during STORE/RECALL. |
| WE | Write Enable (Active LOW) | Controls write latching; must be held HIGH during AutoStore disable/enable sequences. |
| CE | Chip Enable (Active LOW) | Enables device decoding; required for software STORE/RECALL address sequences. |
| OE | Output Enable (Active LOW) | Activates DQ drivers during reads; must be HIGH during writes to prevent bus contention. |
| VCAP | AutoStore Capacitor Supply | Internal regulator charges external 0.1 µF cap; powers STORE when VCC drops below 2.7 V. |
| HSB | Hardware Store Busy (Open Drain) | Pulled LOW externally to initiate STORE; driven LOW internally during STORE/RECALL execution. |
| VSS / VCC | Ground / Power | Single 3V supply domain; VSS must be low-impedance plane for noise immunity in mixed-signal systems. |
Key Features
| Feature | Design Value |
|---|---|
| AutoStore® on Power Loss | Zero-software overhead STORE triggered by VCC drop; eliminates need for external voltage monitor or backup battery. |
| Software STORE/RECALL | 6-address CE-read sequence (e.g., 0x4E38 → 0x8FC0) enables deterministic nonvolatile update without HSB dependency. |
| Hardware STORE Trigger | HSB pin allows system-level control of STORE timing - critical for synchronized state capture before shutdown. |
| QuantumTrap® Nonvolatile Cell | Embedded per-cell storage eliminates wear-out mechanisms of flash-based nvRAM; enables infinite RECALL cycles. |
| Industrial Temperature Range | –40°C to +85°C operation with full 45 ns timing spec maintained - suitable for DIN-rail mounted controllers. |
Applications
| Programmable Logic Controller (PLC) State Backup | Energy Meter Firmware Parameter Storage |
|---|---|
|
Use Scenario: Preserves real-time I/O mapping and ladder logic state during grid brownouts in factory automation systems. IC Role / Device Role / Timing Role: Nonvolatile SRAM acting as fault-tolerant working memory - stores volatile runtime data before power collapse. Use Value: Eliminates need for supercapacitor-based backup power supplies; reduces BOM cost and board area by >30% vs. battery-backed SRAM. |
Use Scenario: Retains tariff schedules, calibration coefficients, and tamper logs across 10+ yearly power interruptions in smart electricity meters. IC Role / Device Role / Timing Role: High-reliability parameter vault - withstands 200,000 STORE cycles over 15-year field life. Use Value: Meets IEC 62056-61 data retention requirements without periodic refresh or external EEPROM wear leveling. |
| Railway Signaling System Configuration | Medical Infusion Pump Runtime History |
|
Use Scenario: Captures switch position history and interlocking logic states during emergency power switchover in trackside signaling cabinets. IC Role / Device Role / Timing Role: Fail-safe memory buffer - guarantees atomic STORE within 100 µs of VCC decay detection. Use Value: Achieves SIL-2 compliance per EN 50129 by eliminating single-point failure modes inherent in battery-dependent solutions. |
Use Scenario: Logs dose delivery timestamps, motor stall events, and alarm triggers for audit trail compliance in Class II infusion pumps. IC Role / Device Role / Timing Role: Secure event recorder - stores time-critical diagnostics even during AC/DC adapter disconnection. Use Value: Supports FDA 21 CFR Part 11 electronic record integrity via deterministic, timestamped STORE/RECALL traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-35I5F | 3.3 V, 35 ns, 256K × 16 organization; uses lithium battery backup instead of VCAP-based AutoStore. | Requires battery replacement every 10 years; unsuitable for sealed medical devices or high-vibration rail environments. | Select only if existing design uses x16 bus and battery maintenance is logistically feasible. |
| FM24CL64B-G | 64 Kbit F-RAM, 40 MHz SPI interface; unlimited endurance but serial access limits throughput vs. parallel nvSRAM. | Lower bandwidth (max 40 Mbps) makes it inappropriate for real-time PLC scan cycle buffering. | Prefer for low-power sensor nodes where byte-level writes dominate over burst memory access. |
Compared with STK14C88-35I5F and FM24CL64B-G, the CY14B104L-ZS45XI delivers deterministic parallel-bus STORE latency (<100 µs), eliminates battery logistics, and provides 4× higher density than the F-RAM - making it optimal for safety-critical, high-throughput industrial memory buffering.
Availability
CY14B104L-ZS45XI is available at Aetrix Electronics and suitable for industrial PLCs, smart energy meters, railway signaling systems, and medical infusion pumps requiring stable component supply across long product lifecycles.
Supply support for CY14B104L-ZS45XI 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 memory and programmable solutions for industrial, automotive, and IoT applications.
The CY14B series targets mission-critical systems needing zero-latency nonvolatile storage without batteries - optimized for deterministic STORE/RECALL in harsh, maintenance-free environments.
FAQ
What is the minimum VCAP capacitance required for reliable AutoStore operation?
The CY14B104L-ZS45XI requires a 0.1 µF ±20% X7R ceramic capacitor on the VCAP pin. This value ensures sufficient energy to complete a full STORE cycle during VCC dropout events lasting up to 100 µs. Larger capacitors do not improve reliability and may delay power-up timing due to increased charge time.
Can the HSB pin be left unconnected in systems that only use software STORE?
Yes - the HSB pin has an internal weak pull-up and may be left floating if hardware STORE triggering is unused. However, leaving it unconnected disables STORE busy indication, so firmware must rely solely on fixed tSTORE timing (max 15 ms) for synchronization, increasing risk of premature SRAM access.
Does the CY14B104L-ZS45XI support partial STORE operations for specific memory regions?
No - STORE and RECALL always operate across the entire 512K × 8 memory array. There is no byte- or page-level granularity; the architecture performs full-array transfer to preserve data coherency between volatile and nonvolatile elements in each cell.
How does the device handle simultaneous SRAM access and AutoStore initiation?
When VCC drops below VSWITCH (2.7 V), the CY14B104L-ZS45XI completes any in-progress SRAM read/write cycle before initiating AutoStore. Internal arbitration ensures no data corruption - the last valid write before power loss is guaranteed to be stored, provided VCAP is correctly sized and charged.
CY14B104L-ZS45XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- 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:
- 44-TSOP II
CY14B104L-ZS45XI FAQ
1.How can I place an order for CY14B104L-ZS45XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B104L-ZS45XI 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 CY14B104L-ZS45XI reliable?
The price and inventory of CY14B104L-ZS45XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B104L-ZS45XI is usually 5 days.
3.What payment methods are accepted for CY14B104L-ZS45XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B104L-ZS45XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B104L-ZS45XI?
CY14B104L-ZS45XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B104L-ZS45XI 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 CY14B104L-ZS45XI?
For technical support, including CY14B104L-ZS45XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B104L-ZS45XI requirements.
6.How does Aetrix verify that CY14B104L-ZS45XI is sourced from the original manufacturer or authorized distributors?
All CY14B104L-ZS45XI 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 CY14B104L-ZS45XI meets industry standards.
7.What is the process for return or replacement of CY14B104L-ZS45XI?
All CY14B104L-ZS45XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B104L-ZS45XI, 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 CY14B104L-ZS45XI part is unused and in its original packaging.
Return procedure for CY14B104L-ZS45XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY14B104L-ZS45XI Tags
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