My Inquiry
My Account
Infineon Technologies CY15B104QN-50SXIT
- Part No.:
- CY15B104QN-50SXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
CY15B104QN-50SXIT.pdf
- Description:
- IC FRAM 4MBIT SPI 50MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,254
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY15B104QN-50SXIT from Infineon is a 4-Mb serial ferroelectric RAM (F-RAM) organized as 512K × 8, operating over SPI at up to 50 MHz with 1.8 V–3.6 V supply, 10¹⁵ write endurance, and 151-year data retention. It serves as a nonvolatile memory replacement for EEPROM/flash in real-time data logging, industrial controllers, and metering systems requiring instant writes without polling.
For engineers reviewing the CY15B104QN-50SXIT datasheet, CY15B104QN-50SXIT pinout, CY15B104QN-50SXIT application, or CY15B104QN-50SXIT equivalent, key selection criteria include SPI mode 0/3 compatibility, hardware/software write protection, deep power-down current (0.70 µA), and industrial temperature range (–40°C to +85°C).
Technical Context
The CY15B104QN-50SXIT implements a true SPI slave interface with zero-write-latency architecture: data commits immediately upon byte transfer, eliminating status polling. Its ferroelectric memory array enables deterministic write timing independent of address location or prior erase cycles.
It integrates a nonvolatile status register with WPEN bit control, dual write protection (hardware WP pin + software WRDI/block protect), and dedicated 256-byte special sector surviving three reflow cycles. Device ID and 8-byte programmable serial number support traceability and system identification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 4 Mb (512K × 8 bits); supports full byte-addressable access via 19-bit SPI address field |
| SPI clock frequency | Up to 50 MHz; enables 5 MB/s peak serial throughput with no wait states |
| Write endurance | 10¹⁵ cycles; eliminates wear-leveling firmware overhead in high-frequency logging |
| Data retention | 151 years at +85°C; validated per JEDEC JESD22-A117, enabling unpowered archival storage |
| Supply voltage | 1.8 V to 3.6 V; compatible with 1.8 V, 2.5 V, 3.3 V logic domains without level shifters |
| Operating temperature | –40°C to +85°C; qualified per AEC-Q100 stress test conditions for industrial use |
| Deep power-down current | 0.70 µA typical; allows battery-backed operation for >10 years on a CR2032 cell |
Pinout & Package
8-pin SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch), RoHS-compliant, industrial-grade moisture sensitivity level (MSL 3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; places device in standby (2.3 µA) when HIGH; required falling edge before each opcode |
| SCK | Serial clock input | Synchronizes all I/O; rising edge latches SI, falling edge drives SO; supports 0–50 MHz with interrupt tolerance |
| SI | Serial data input | Accepts opcodes, addresses, and write data; must be driven to valid logic level to meet IDD specs |
| SO | Serial data output | Drives read data during MISO phase; tristated otherwise; transitions on SCK falling edge |
| WP | Write protect input | Hardware lock for status register when WPEN = 1; must tie to VDD if unused |
| VSS | Ground | Reference return path for all internal circuitry; requires low-impedance connection to system GND |
| VDD | Power supply | Core and I/O supply; bypass capacitor (≥100 nF) required within 5 mm of pin |
| DNU | Do-not-use terminal | No internal connection; must float or tie to VDD; not for PCB routing or thermal relief |
Key Features
| Feature | Design Value |
|---|---|
| Instant non-volatile write | Zero latency commit: data written to F-RAM array immediately after SPI byte transfer completes |
| Dedicated 256-byte special sector | Retains content through ≥3 lead-free reflow cycles (260°C peak), enabling board-level serialization |
| Multi-layer write protection | Combines hardware (WP pin), software disable (WRDI), and block-level (1/4, 1/2, full array) locking |
| Device and serial identification | Factory-programmed 16-bit Device ID + unique 64-bit ID + user-writable 8-byte serial number register |
| Ultra-low deep power-down | 0.70 µA typical current enables multi-year operation from coin-cell batteries in maintenance-free sensors |
Applications
| Smart Energy Metering | Industrial PLC Data Logging |
|---|---|
Use Scenario: Continuous timestamped energy consumption recording with 1-second resolution and tamper-proof audit trail. IC Role / Device Role / Timing Role: Nonvolatile buffer storing raw kWh, voltage, and event logs; replaces EEPROM to eliminate write stalls during power loss. Use Value: 10¹⁵ endurance ensures >30 years of daily 10,000-write cycles; 151-year retention guarantees regulatory compliance without backup power. | Use Scenario: Real-time capture of sensor inputs (temperature, pressure, flow) in factory automation controllers. IC Role / Device Role / Timing Role: High-speed shadow RAM for volatile process data, instantly hardened to nonvolatile storage on cycle boundary. Use Value: 50 MHz SPI enables sub-200 ns per-byte write; eliminates missed samples during burst acquisition windows. |
| Medical Diagnostic Equipment | Automotive Telematics Control Unit |
Use Scenario: Storing calibration coefficients, fault history, and last-known-safe configuration across power cycles. IC Role / Device Role / Timing Role: Configuration store accessed at boot; retains critical settings even after unexpected shutdown during firmware update. Use Value: No write delay removes need for complex power-fail detection circuits; 1.8 V min operation supports low-power MCU domains. | Use Scenario: Recording vehicle OBD-II diagnostic trouble codes (DTCs), GPS coordinates, and crash-event snapshots. IC Role / Device Role / Timing Role: Crash-triggered nonvolatile logger capturing pre-impact CAN bus state and sensor fusion data. Use Value: Instant write capability ensures DTCs are saved within 100 ns of fault detection-no data loss during brown-out. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar nonvolatile serial memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY15B104QSN-50ZSXI | Same die, UFLGA-8 (2.5 mm × 3.0 mm) package; 0.4 mm pitch; MSL 1 vs SOIC's MSL 3 | Better suited for space-constrained portable medical devices; requires fine-pitch reflow profile | Select for ultra-compact PCB layouts where thermal cycling reliability is secondary to size |
| FM25V04-G | Cypress (Infineon) 4-Mb F-RAM, 50 MHz SPI, but VDD = 2.0–3.6 V; no 1.8 V support; identical endurance/retention | Lacks 1.8 V operation; incompatible with 1.8 V I/O MCUs without level shifting | Choose only when system operates exclusively at ≥2.0 V and UFLGA footprint is unavailable |
Compared with CY15B104QSN-50ZSXI and FM25V04-G, the CY15B104QN-50SXIT uniquely supports 1.8 V operation in an industry-standard SOIC-8 package with MSL 3 rating-making it optimal for industrial controllers requiring robust manufacturability and wide voltage compatibility.
Availability
CY15B104QN-50SXIT is available at Aetrix Electronics and suitable for smart metering, industrial PLC data logging, and automotive telematics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for CY15B104QN-50SXIT 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 German semiconductor manufacturer specializing in power management, automotive ICs, and nonvolatile memory solutions, with global R&D and manufacturing infrastructure.
The EXCELON™ LP F-RAM product line targets high-reliability, high-endurance nonvolatile storage for industrial, automotive, and medical applications where flash/EEPROM limitations in speed, endurance, and power are unacceptable.
FAQ
Is CY15B104QN-50SXIT pin-compatible with standard SPI EEPROMs like AT25DF041?
No. While both use 8-pin SOIC and SPI interface, CY15B104QN-50SXIT has a DNU pin (pin 2) and different pin mapping: SI/SO are separate (not shared), and WP is functional-not NC. Direct replacement requires PCB layout revision and firmware adaptation for F-RAM's zero-latency write protocol.
Does the 256-byte special sector require special commands to access?
Yes. The special sector uses dedicated opcodes: 0x77 (read special sector) and 0x7C (write special sector). Unlike main array access, these commands bypass standard address bytes and operate on fixed 256-byte region. Write protection applies separately and must be disabled explicitly via WRSR command before programming.
Can the serial number be rewritten multiple times?
Yes. The 8-byte serial number register is located in the main F-RAM array and supports full 10¹⁵ write cycles. It is accessed using standard WRITE (0x02) and READ (0x03) opcodes with address 0x7F000–0x7F007. No special unlock sequence is needed beyond standard WREN instruction.
What is the maximum junction temperature during reflow for CY15B104QN-50SXIT in SOIC package?
The SOIC-8 package is rated for lead-free reflow per JEDEC J-STD-020E: peak temperature 260°C for ≤40 seconds, with ramp rate ≤3°C/s. The 256-byte special sector is characterized to retain data after three such cycles; standard F-RAM array retention is unaffected by reflow thermal profiles.
CY15B104QN-50SXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Excelon™-Auto, F-RAM™
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 4Mbit
- Memory Organization:
- 512K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 50 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY15B104QN-50SXIT FAQ
1.How can I place an order for CY15B104QN-50SXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY15B104QN-50SXIT 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 CY15B104QN-50SXIT reliable?
The price and inventory of CY15B104QN-50SXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY15B104QN-50SXIT is usually 5 days.
3.What payment methods are accepted for CY15B104QN-50SXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY15B104QN-50SXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY15B104QN-50SXIT?
CY15B104QN-50SXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY15B104QN-50SXIT 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 CY15B104QN-50SXIT?
For technical support, including CY15B104QN-50SXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY15B104QN-50SXIT requirements.
6.How does Aetrix verify that CY15B104QN-50SXIT is sourced from the original manufacturer or authorized distributors?
All CY15B104QN-50SXIT 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 CY15B104QN-50SXIT meets industry standards.
7.What is the process for return or replacement of CY15B104QN-50SXIT?
All CY15B104QN-50SXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY15B104QN-50SXIT, 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 CY15B104QN-50SXIT part is unused and in its original packaging.
Return procedure for CY15B104QN-50SXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY15B104QN-50SXIT 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
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
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.
