What is a cross-reference page for CY8C3866AXI-033?
This page groups mapped replacement options for CY8C3866AXI-033 so buyers and engineers can compare alternatives before requesting a quote or approving a substitute.
Alternative part analysis
CY8C3866AXI-033 replacements, alternatives, and cross reference
Compare mapped replacement and alternative options for CY8C3866AXI-033, then verify package, specifications, and application fit before approval.
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Specification view
Parameter Comparison Chart
A side-by-side view of the source part and its mapped alternatives so buyers and engineers can screen package, availability, lifecycle, and key descriptors before RFQ.
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| Parameter Comparison Chart | Current part CY8C3866AXI-033 Cypress Semiconductor |
|---|---|
| Part Number | CY8C3866AXI-033 |
| Manufacturer | Cypress Semiconductor |
| Category | Integrated Circuits (ICs) |
| Subcategory | Embedded - Microcontrollers |
| Package | LQFP |
| Series | PSOC® 3 CY8C38xx |
| Key Attributes | - |
| Description | IC MCU 8BIT 64KB FLASH 100TQFP |
| Lifecycle | - |
| Stock | 158,477 |
| Available | 84,651 |
| Min Order | 1 |
| Datasheet | Request |
| Part Status | Active |
| Packaging | Tray |
| REACH Status | REACH Unaffected |
| Mounting Type | Surface Mount |
| Factory Lead Time | 18 Weeks |
| Published | 2012 |
| Categories | Integrated Circuits (ICs) |
| Peak Reflow Temperature (Cel) | 260 |
| Terminal Form | GULL WING |
| Technology | CMOS |
| Terminal Position | QUAD |
| Terminal Pitch | 0.5mm |
| Operating Temperature | -40°C~85°C TA |
| Sub-Categories | Embedded - Microcontrollers |
| Package / Case | 100-LQFP |
| ECCN | 3A991A2 |
| Radiation Hardening | No |
| Mount | Surface Mount |
| Pbfree Code | yes |
| Manufacturer | Cypress Semiconductor |
| Supply Voltage | 3.3V |
| Number of Pins | 100 |
| Pin Count | 100 |
| Number of Terminations | 100 |
| EEPROM Size | 2K x 8 |
| Reflow Temperature-Max (s) | 20 |
| Frequency | 67MHz |
| UV Erasable | N |
| Subcategory | Other Microprocessor ICs |
| Number of I/O | 62 |
| Interface | EBI/EMI, I2C, LIN, SPI, UART, USART, USB |
| Series | PSOC® 3 CY8C38xx |
| Base Part Number | CY8C3866 |
| Manufacturer's Part No. | CY8C3866AXI-033 |
| JESD-609 Code | e3 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| HTSUS | 8542.31.0001 |
| Oscillator Type | Internal |
| Terminal Finish | Matte Tin (Sn) |
| Core Size | 8-Bit |
| RAM Size | 8K x 8 |
| Supply Voltage-Min (Vsup) | 1.71V |
| Power Supplies | 2/5V |
| Memory Size | 64kB |
| Program Memory Size | 64KB 64K x 8 |
| Program Memory Type | FLASH |
| Supply Voltage-Max (Vsup) | 5.5V |
| Number of Timers/Counters | 4 |
| Boundary Scan | YES |
| Core Processor | 8051 |
| Voltage - Supply (Vcc/Vdd) | 1.71V~5.5V |
| RAM (words) | 8000 |
| Peripherals | CapSense, DMA, POR, PWM, WDT |
| Connectivity | EBI/EMI, I2C, LINbus, SPI, UART/USART, USB |
| ROM Size (bits) | 65536Bits |
| Data Converter | A/D 16x20b; D/A 4x8b |
| Height Seated (Max) | 1.6mm |
| Actions |
Cross-reference FAQ
Replacement Part Questions
Short answers for teams reviewing CY8C3866AXI-033 replacement and equivalent-part options.
Does a mapped alternative mean a guaranteed drop-in replacement for CY8C3866AXI-033?
Not automatically. Cross-reference mapping helps shortlist candidates, but package, electrical behavior, qualification scope, and approval rules still need to be checked before release.
Which parameters should teams compare first for CY8C3866AXI-033 alternatives?
Start with package, series, key attributes, lifecycle status, stock position, datasheet access, and the mapped pin-to-pin or cross-reference note. Then confirm application-specific requirements in the datasheet and RFQ stage.
Can I request a quote for an alternative to CY8C3866AXI-033?
Yes. Use the product links or RFQ actions on this page to request pricing, availability, documentation, and sourcing support for any listed alternative part.
Is CY8C3866AXI-033 obsolete, and what replacement should buyers review first?
Check the lifecycle row on this page first. If buyers need a fast starting point, the strongest mapped replacement currently surfaced here is , followed by the other alternatives shown in the comparison table.
Engineering support
Need help validating the replacement path?
If your team is unsure whether a mapped alternative to CY8C3866AXI-033 from Cypress Semiconductor is really usable, contact us for help on package fit, pin compatibility, key parameter gaps, and qualification-facing review questions.
Contact a hardware engineer
Email our engineering support contact at [email protected], or use the contact page if the question should be routed across sourcing, engineering, and support.
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Package and pin compatibility
Review whether the alternate path looks credible from package, footprint, and pin-level perspectives.
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Parameter and function gaps
Surface the electrical, interface, or application-fit questions that still need confirmation before approval.
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Qualification and approval prep
Organize the documentation, datasheet evidence, and validation checkpoints your internal team may still require.