CY15B104Q-SXI Cypress Semiconductor Integrated Circuit (Small Outline Packages) In Stock
Cypress CY15B104Q-SXI is a 4 Mbit (512 KB) Serial SPI Ferroelectric RAM (F-RAM) with 2 V to 3.6 V supply range in an 8-pin SOIC package. Delivers unlimited read/write endurance, 100-year data retention, and up to 40 MHz SPI clock speed. Available from stock worldwide with same-day shipping.
- Manufacturer
- Cypress Semiconductor
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- CY15B104Q-SXI Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $12.7400(MOQ 5)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CY15B104Q-SXI?
- 4 Mbit (512 KB) F-RAM with unlimited read/write endurance — no wear-leveling required unlike Flash or EEPROM
- Up to 40 MHz SPI interface operating from 2 V to 3.6 V supply, enabling fast non-volatile data logging in low-power systems
- 100-year data retention with byte-level write granularity in a compact 8-pin SOIC package rated -40 °C to +85 °C
What is CY15B104Q-SXI used for?
The CY15B104Q-SXI is well-suited for industrial IoT data loggers, smart meters, and wearable medical devices where rapid, frequent non-volatile writes to 512 KB of storage are required without wear-out risk. Its 2 V to 3.6 V supply range makes it directly compatible with ARM Cortex-M microcontroller SPI buses running at 3.3 V. The 8-pin SOIC footprint simplifies PCB layout in space-constrained embedded designs needing reliable data persistence across power cycles.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the CY15B104Q-SXI datasheet?
CY15B104Q-SXI Datasheet DownloadOfficial datasheet from Cypress Semiconductor
What are equivalent replacements for CY15B104Q-SXI?
Compatible alternatives and drop-in replacements for CY15B104Q-SXI:
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the write endurance of CY15B104Q-SXI compare to standard SPI Flash memory?
The CY15B104Q-SXI provides unlimited write endurance due to its F-RAM (Ferroelectric RAM) technology, compared to typical SPI Flash devices limited to 100,000 erase/write cycles per sector. This makes it ideal for applications that write data continuously at up to 40 MHz SPI clock speed without requiring wear-leveling algorithms.
What supply voltage range and SPI clock speed does the CY15B104Q-SXI support?
The CY15B104Q-SXI operates from a 2 V to 3.6 V supply voltage and supports SPI clock speeds up to 40 MHz. It is compatible with standard SPI Modes 0 and 3, making it a drop-in upgrade for SPI EEPROM or Flash memory designs in 3.3 V microcontroller systems requiring 512 KB of non-volatile storage.
Which embedded applications benefit most from the CY15B104Q-SXI 4 Mbit F-RAM?
Industrial data loggers, smart energy meters, and automotive black-box recorders benefit most because the CY15B104Q-SXI writes 512 KB of data at byte-level granularity with no erase cycle, enabling sustained logging at up to 40 MHz SPI. The -40 °C to +85 °C operating range and 100-year data retention guarantee reliable operation in harsh field environments.
Is the CY15B104Q-SXI a pin-compatible replacement for SPI EEPROM devices in 8-pin SOIC packages?
Yes, the CY15B104Q-SXI in the 8-pin SOIC package is pin-compatible with many standard SPI EEPROM devices and offers a significantly larger 512 KB (4 Mbit) storage capacity. Its unlimited write endurance and 40 MHz SPI speed make it a direct upgrade for designs using slower EEPROMs with 1 million cycle endurance limits.
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About Cypress Semiconductor
Cypress Semiconductor is a leading electronic component manufacturer. FindMyChip sources Cypress Semiconductor ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $60.0000 | $300.00 |
| 50+ | $24.3616 | $1218.08 |
| 94+ | $22.3300 | $2099.02 |
| 500+ | $17.2400 | $8620.00 |
| 889+ | $12.7400 | $11325.86 |
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