My Inquiry
My Account
Infineon Technologies CY14B116K-ZS25XI
- Part No.:
- CY14B116K-ZS25XI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY14B116K-ZS25XI.pdf
- Description:
- IC NVSRAM 16MBIT PAR 44TSOP II
- Quantity:
- Payment:
- Shipping:
Inventory:3,742
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY14B116K-ZS25XI from Infineon Technologies (formerly Cypress) is a 16-Mbit nonvolatile SRAM with integrated real-time clock, organized as 2048 K × 8, featuring 25-ns access time, QuantumTrap nonvolatile storage, and industrial-grade operation from –40 °C to +85 °C. It delivers hands-off AutoStore on power-down using only a capacitor, supports software/hardware STORE/RECALL, and includes a full-featured RTC with alarm, watchdog timer, and programmable square-wave output.
For engineers reviewing the CY14B116K-ZS25XI datasheet, CY14B116K-ZS25XI pinout, CY14B116K-ZS25XI application, or CY14B116K-ZS25XI equivalent, key selection considerations include nvSRAM retention reliability (20-year data retention), RTC backup current (0.45 µA typical), ×8 configuration compatibility, and TSOP II 44-pin package footprint for space-constrained industrial control and metering designs.
Technical Context
The device integrates SRAM and QuantumTrap nonvolatile elements in each memory cell, enabling parallel STORE/RECALL with no external controller. STORE occurs automatically at power-down via VCAP-supplied energy or under software/HW control; RECALL restores data on power-up or via command.
The embedded RTC provides leap-year-corrected timekeeping, programmable alarms (minutes/hours/days/months), a 512-Hz calibration mode, and selectable square-wave outputs (1 Hz / 512 Hz / 4.096 kHz / 32.768 kHz), all backed by either capacitor (VRTCcap) or battery (VRTCbat) supply with 0.45 µA typical backup current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2048 K × 8 organization), directly compatible with 8-bit microcontroller data buses. |
| Access Time | 25 ns - enables direct interfacing with high-speed MCU peripherals without wait states. |
| Data Retention | 20 years at +85 °C - guarantees long-term data integrity in unattended industrial logging applications. |
| STORE Endurance | 1 million cycles - supports frequent power-cycle environments like smart utility meters. |
| RTC Backup Current | 0.45 µA typical - allows >10-year operation on a single CR2032 coin cell or low-leakage supercapacitor. |
| Operating Voltage | 2.7 V to 3.6 V - matches standard 3.3 V system rails and tolerates brown-out conditions down to 2.7 V. |
| Temperature Range | –40 °C to +85 °C - qualified for industrial automation, automotive body electronics, and outdoor metering. |
Pinout & Package
Package: 44-pin Thin Small-Outline Package (TSOP II), 340 mil width, RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A20 | Address Inputs | Select one of 2,097,152 bytes; A20 required for full ×8 addressing range. |
| DQ0–DQ7 | Bidirectional Data I/O | 8-bit parallel interface; tristated when OE HIGH or during STORE/RECALL. |
| CE, WE, OE | Control Inputs | Standard SRAM control logic: CE enables chip, WE controls write, OE enables output buffers. |
| VCAP | AutoStore Capacitor Supply | Connects external capacitor (typically 47–100 µF) to sustain STORE during VCC loss. |
| VRTCcap/VRTCbat | RTC Backup Supply | Separate pins for capacitor or battery RTC backup; only one used per design. |
| INT | Programmable Interrupt Output | Configurable as alarm/wdog/power-fail interrupt or 1–32.768 kHz square wave output. |
| Xin/Xout | RTC Crystal Interface | Drives 32.768 kHz tuning-fork crystal; internal oscillator eliminates external components. |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap Nonvolatility | Eliminates need for external EEPROM/NVRAM and battery-backed RAM, reducing BOM count and board area. |
| Capacitor-Based AutoStore | Enables reliable STORE using only a low-cost, long-life capacitor-no battery replacement or leakage concerns. |
| RTC with Leap-Year Correction | Delivers calendar-accurate timekeeping over decades without firmware intervention or manual adjustment. |
| Programmable Square-Wave Output | Provides system clock reference or timing signal (1 Hz to 32.768 kHz) without adding discrete oscillators. |
| Sleep Mode (via ZZ) | Reduces active current to 10 µA-critical for battery-powered devices requiring extended standby periods. |
Applications
| Smart Electricity Metering | Industrial PLC Data Logging |
|---|---|
|
Use Scenario: Continuous energy consumption recording with timestamped events during mains power interruptions. IC Role / Device Role / Timing Role: nvSRAM preserves meter registers and RTC maintains accurate billing time across blackouts. Use Value: Eliminates data loss during grid instability and ensures regulatory-compliant time-stamped logs without external backup. |
Use Scenario: Storing sensor history and fault records in programmable logic controllers deployed in factory environments. IC Role / Device Role / Timing Role: Acts as deterministic nonvolatile buffer with synchronized RTC timestamps for event sequencing. Use Value: Enables deterministic post-fault analysis with sub-second time correlation across distributed I/O modules. |
| Medical Diagnostic Equipment | Automotive Body Control Module |
|
Use Scenario: Capturing calibration coefficients and last-known operational state in portable ultrasound or ECG devices. IC Role / Device Role / Timing Role: Stores critical configuration and session timestamps; RTC supports audit-trail compliance. Use Value: Meets IEC 62304 data integrity requirements with zero risk of SRAM corruption during battery swaps. |
Use Scenario: Recording door/window status, lighting sequences, and error codes in vehicle BCMs with infrequent power cycling. IC Role / Device Role / Timing Role: Provides nonvolatile memory + precise wake-up timing for low-power CAN bus monitoring. Use Value: Reduces quiescent current below 15 µA while maintaining tamper-proof event history for warranty diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM+RTC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK14C88-3A55I | 55 ns access time; no integrated RTC; requires external oscillator and backup battery. | Lacks RTC functionality and AutoStore capacitor support - needs additional components for timekeeping and power-loss protection. | Choose only if RTC is implemented separately and slower access time is acceptable. |
| FM31L278-G | Integrated RTC + FRAM (not nvSRAM); 100 ns access; 3.0 V to 5.5 V supply range. | FRAM offers unlimited endurance but slower speed; lacks hardware STORE/RECALL control pins (HSB, ZZ). | Prefer for ultra-high-write-cycle applications where 25 ns timing is not required and voltage flexibility matters. |
Compared with STK14C88-3A55I and FM31L278-G, CY14B116K-ZS25XI uniquely combines 25 ns SRAM speed, monolithic RTC, capacitor-based AutoStore, and dedicated HSB/ZZ control - making it optimal for compact, high-reliability industrial systems needing deterministic power-loss response.
Availability
CY14B116K-ZS25XI is available at Aetrix Electronics and suitable for smart metering, industrial PLC data logging, medical diagnostic equipment, and automotive body control modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS compliance.
Supply support for CY14B116K-ZS25XI 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
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, connectivity, and security solutions for industrial, automotive, and IoT markets.
CY14B116K-ZS25XI belongs to Infineon's legacy Cypress nvSRAM product line, engineered specifically for applications demanding simultaneous high-speed volatile memory and autonomous, battery-free timekeeping with guaranteed data retention across power failures.
FAQ
What is the function of the HSB pin on CY14B116K-ZS25XI?
The HSB (Hardware STORE Busy) pin serves dual roles: as an input, pulling it LOW initiates a nonvolatile STORE operation; as an output, it goes LOW during active STORE/RECALL to signal bus contention. After completion, it returns HIGH via internal weak pull-up. This pin enables hardware-synchronized data preservation without CPU intervention during unexpected power loss.
Can CY14B116K-ZS25XI operate without an external crystal?
Yes - the RTC operates using its internal 32.768 kHz oscillator when Xin/Xout are left unconnected. External crystal connection is optional and only required for higher accuracy (±20 ppm vs. ±100 ppm internal). The device defaults to internal oscillator mode and requires no configuration change to use it.
How does AutoStore work without a battery?
AutoStore uses energy stored in an external VCAP capacitor (47–100 µF) charged from VCC. When VCC drops below ~2.5 V, the device switches to VCAP to complete STORE within 10 ms. No battery is needed - this architecture avoids battery leakage, expiration, and regulatory restrictions associated with onboard Li batteries.
Is CY14B116K-ZS25XI pin-compatible with earlier CY14B116K variants?
Yes - CY14B116K-ZS25XI shares identical 44-pin TSOP II pinout, electrical characteristics, and command set with prior CY14B116K versions (e.g., -ZS25XCT). Infineon maintains full backward compatibility, including identical AC/DC timing, register mapping, and STORE/RECALL behavior per datasheet Rev. *K.
CY14B116K-ZS25XI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- 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:
- 44-TSOP II
CY14B116K-ZS25XI FAQ
1.How can I place an order for CY14B116K-ZS25XI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B116K-ZS25XI 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 CY14B116K-ZS25XI reliable?
The price and inventory of CY14B116K-ZS25XI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B116K-ZS25XI is usually 5 days.
3.What payment methods are accepted for CY14B116K-ZS25XI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B116K-ZS25XI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B116K-ZS25XI?
CY14B116K-ZS25XI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B116K-ZS25XI 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 CY14B116K-ZS25XI?
For technical support, including CY14B116K-ZS25XI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B116K-ZS25XI requirements.
6.How does Aetrix verify that CY14B116K-ZS25XI is sourced from the original manufacturer or authorized distributors?
All CY14B116K-ZS25XI 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 CY14B116K-ZS25XI meets industry standards.
7.What is the process for return or replacement of CY14B116K-ZS25XI?
All CY14B116K-ZS25XI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B116K-ZS25XI, 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 CY14B116K-ZS25XI part is unused and in its original packaging.
Return procedure for CY14B116K-ZS25XI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY14B116K-ZS25XI Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
