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Infineon Technologies CY14B101Q2-LHXI
- Part No.:
- CY14B101Q2-LHXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
CY14B101Q2-LHXI.pdf
- Description:
- IC NVSRAM 1MBIT SPI 40MHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,643
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Product details
Overview
CY14B101Q2-LHXI from Infineon Technologies (formerly Cypress) is a 1-Mbit serial SPI nonvolatile SRAM (nvSRAM), internally organized as 128K × 8, featuring AutoStore on power-down, Software STORE/RECALL via SPI, and 40 MHz interface speed. It uses QuantumTrap nonvolatile technology for 20-year data retention and supports industrial temperature range (–40°C to +85°C) in an 8-pin DFN package with VCAP pin for capacitor-backed STORE.
For engineers reviewing the CY14B101Q2-LHXI datasheet, CY14B101Q2-LHXI pinout, CY14B101Q2-LHXI application, or CY14B101Q2-LHXI equivalent, key selection criteria include AutoStore capability (enabled), absence of WP pin, VCAP-based power-loss protection, SPI mode 0/3 compatibility, and support for infinite SRAM write cycles without endurance penalty.
Technical Context
This nvSRAM integrates volatile SRAM and nonvolatile QuantumTrap cells per bit, enabling zero-cycle-delay reads/writes to SRAM while preserving data across power loss via STORE operations. It operates as an SPI slave supporting modes 0 and 3, with dedicated control logic for AutoStore (triggered by VCAP discharge), Hardware STORE (via HSB pin), and Software STORE/RECALL (via SPI opcodes).
The device implements dual-layer write protection: hardware-level via HOLD and HSB status signaling, and software-level via Status Register BP0/BP1 bits for 1/4-, 1/2-, or full-array block protection. STORE and RECALL inhibit memory access until completion, with busy status indicated by HSB pin low or RDY bit = 1 in Status Register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128K × 8) - provides byte-addressable nonvolatile storage with SRAM-speed access |
| SPI Clock Rate | 40 MHz - enables high-throughput data logging without wait states |
| Data Retention | 20 years - guaranteed nonvolatile data hold at industrial temperature without refresh |
| STORE Endurance | 1 million cycles - limits total nonvolatile write events, independent of infinite SRAM writes |
| Operating Voltage | 2.7 V to 3.6 V - single-supply operation compatible with 3.3 V systems |
| Temperature Range | –40°C to +85°C - qualified for industrial environments without derating |
| AutoStore Support | Yes - enabled via external VCAP capacitor; automatic on power-down (not available in Q1) |
Pinout & Package
Package: 8-pin Dual Flat No-Lead (DFN), 5 mm × 6 mm, exposed pad (recommended connected to VSS). Pinout validated per Cypress document 001-50091 Rev. *P, Figure 1 and Page 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby when high, disabling current draw |
| SCK | Serial clock input | Latches SI on rising edge; drives SO on falling edge; max 40 MHz |
| SI | Serial data input | Accepts all SPI instructions (READ, WRITE, STORE, RECALL, WRSR, etc.) |
| SO | Serial data output | Drives read data and status register bits; tri-stated when CS high |
| VCAP | AutoStore capacitor supply | Connects to external capacitor (typ. 4.7 µF) to sustain STORE during power loss |
| HOLD | Operation suspend input | Halts ongoing SPI transfer without resetting internal address pointer |
| HSB | Hardware STORE Busy I/O | Output: driven LOW during STORE/RECALL; Input: pull LOW to trigger Hardware STORE |
| VSS | Ground | Reference for all signals and power domains; exposed pad tied to VSS for thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| QuantumTrap nonvolatile cell | Enables infinite SRAM write cycles while retaining 1M STORE endurance and 20-year data retention |
| AutoStore with VCAP | Eliminates need for external power-fail detection circuitry; stores data automatically on VCC drop |
| Software STORE/RECALL | Allows deterministic, host-controlled nonvolatile save/restore without power-cycle dependency |
| SPI mode 0 and 3 support | Ensures interoperability with diverse microcontroller SPI peripherals without configuration conflict |
| Block write protection | Configurable 1/4, 1/2, or full array lock via BP0/BP1 bits - prevents accidental overwrite of critical firmware or calibration data |
Applications
| Industrial Data Logger | Medical Device Memory Backup |
|---|---|
Use Scenario: Continuous sensor sampling in programmable logic controllers with periodic power interruption. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory holding last valid measurement set before power loss. Use Value: Eliminates battery-backed SRAM and associated maintenance; retains data for ≥20 years without refresh. | Use Scenario: Storing patient calibration profiles and therapy history in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, fast-access memory for time-critical parameter recall on boot. Use Value: Enables immediate post-power-up operation with validated settings; meets IEC 62304 data integrity requirements. |
| Automotive Telematics ECU | Smart Grid Metering Module |
Use Scenario: Capturing GPS position and CAN bus event logs during vehicle ignition cycling. IC Role / Device Role / Timing Role: High-reliability buffer between microcontroller and flash, absorbing burst writes. Use Value: Prevents log loss during unexpected ignition-off; supports 1M STORE cycles over 15-year vehicle life. | Use Scenario: Recording energy consumption snapshots during utility grid voltage sags or outages. IC Role / Device Role / Timing Role: Power-loss-resilient memory capturing timestamped kWh values at 1-second intervals. Use Value: Guarantees meter accuracy compliance (ANSI C12.20) even under brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nvSRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY14B101Q3-LHXI | 16-pin SOIC package; includes HSB pin with stronger drive strength and NC pins for layout flexibility | Preferred where board space allows larger footprint and explicit hardware STORE control is required | Select when needing robust HSB signaling and compatibility with legacy 16-pin NV memory footprints |
| FM25V01-G | F-RAM-based; 1 Mbit, SPI interface; no STORE delay; unlimited endurance; no VCAP needed | Better suited for ultra-high-write-frequency logging (e.g., >1 kHz sample rate) where STORE latency is unacceptable | Choose when minimizing STORE latency and eliminating capacitor dependency outweighs cost and density trade-offs |
Compared with CY14B101Q2-LHXI, CY14B101Q3-LHXI offers enhanced HSB functionality and package flexibility but requires more PCB area; FM25V01-G eliminates STORE timing constraints and capacitor reliance but lacks AutoStore's deterministic power-loss capture behavior.
Availability
CY14B101Q2-LHXI is available at Aetrix Electronics and suitable for industrial data loggers, medical device memory backup, automotive telematics ECUs, and smart grid metering modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for CY14B101Q2-LHXI 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, delivering power systems, sensors, and memory solutions for industrial, automotive, and IoT applications.
CY14B101Q2-LHXI belongs to Infineon's nvSRAM product line, designed specifically for applications demanding instant-on reliability, deterministic power-loss data capture, and seamless SPI integration without battery or supercapacitor complexity.
FAQ
What is the function of the VCAP pin on CY14B101Q2-LHXI?
The VCAP pin supplies temporary power to complete the AutoStore operation during VCC dropout. A 4.7 µF tantalum or ceramic capacitor must be connected between VCAP and VSS. If AutoStore is not used, VCAP must remain unconnected - never tied to VSS directly. This pin is absent in CY14B101Q1 and present only in Q2/Q3 variants.
Does CY14B101Q2-LHXI support hardware write protection?
No. Unlike CY14B101Q1, CY14B101Q2-LHXI omits the WP (Write Protect) pin. Write protection is implemented exclusively through software: Write Disable (WRDI) instruction and Status Register block protection bits (BP0/BP1), allowing selective locking of 1/4, 1/2, or full memory array.
How does AutoStore differ between CY14B101Q2-LHXI and CY14B101Q1?
CY14B101Q2-LHXI supports AutoStore using the VCAP capacitor to retain power during VCC collapse, triggering automatic STORE. CY14B101Q1 lacks both VCAP pin and AutoStore functionality - STORE must be initiated manually via Software or Hardware methods, making it unsuitable for uncontrolled power-loss scenarios.
Can CY14B101Q2-LHXI operate at 2.5 V?
No. The absolute minimum supply voltage is 2.7 V per DC Electrical Characteristics (Page 15). Operation below 2.7 V risks unreliable STORE/RECALL execution, invalid status register reads, and potential data corruption. The device is specified for 2.7 V to 3.6 V, aligning with standard 3.3 V I/O systems.
CY14B101Q2-LHXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- NVSRAM
- Technology:
- NVSRAM (Non-Volatile SRAM)
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (5x6)
CY14B101Q2-LHXI FAQ
1.How can I place an order for CY14B101Q2-LHXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY14B101Q2-LHXI 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 CY14B101Q2-LHXI reliable?
The price and inventory of CY14B101Q2-LHXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY14B101Q2-LHXI is usually 5 days.
3.What payment methods are accepted for CY14B101Q2-LHXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY14B101Q2-LHXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY14B101Q2-LHXI?
CY14B101Q2-LHXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY14B101Q2-LHXI 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 CY14B101Q2-LHXI?
For technical support, including CY14B101Q2-LHXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY14B101Q2-LHXI requirements.
6.How does Aetrix verify that CY14B101Q2-LHXI is sourced from the original manufacturer or authorized distributors?
All CY14B101Q2-LHXI 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 CY14B101Q2-LHXI meets industry standards.
7.What is the process for return or replacement of CY14B101Q2-LHXI?
All CY14B101Q2-LHXI units undergo pre-shipment inspection (PSI). If there is an issue with CY14B101Q2-LHXI, 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 CY14B101Q2-LHXI part is unused and in its original packaging.
Return procedure for CY14B101Q2-LHXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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