Infineon

CY8C3866AXI-035 - 8051 PSoC 3 MCU 64KB Flash 67MHz | Infineon

MPN: CY8C3866AXI-035 ✓ فعال
0.5 V to 5.5 V (operating 1.71 V to 5.5 V per family datasheet) Vdss 100-pin TQFP (14 x 14 mm), gull-wing Package 67 MHz Speed 64 KB (64K x 8) Memory
MOQ: 1 |

CY8C3866AXI-035 جائزہ

The Infineon CY8C3866AXI-035 is a member of the PSoC 3 family of programmable system-on-chip devices, integrating an 8-bit 8051 core running up to 67 MHz with 64 KB of Flash program memory, 8 KB SRAM, 1 KB data EEPROM, and a rich mix of programmable analog and digital peripherals in a 100-pin TQFP (14x14 mm) package. The 8051 core pairs with a DMA controller and digital filter processor (DFP) for high-throughput signal processing while keeping the architecture easy to program with standard 8051 toolchains.

What is a PSoC (Programmable System-on-Chip)? A PSoC is a microcontroller family that combines a CPU core with configurable analog blocks (ADCs, DACs, op-amps, comparators) and configurable digital blocks (UDBs, timers, UART/SPI/I2C) on a single die. The 'system-on-chip' hierarchy is: PSoC -> mixed-signal MCU -> microcontroller -> embedded processor -> semiconductor. PSoC 3 specifically uses the legacy-friendly 8051 core with industry-best ultra-low-power operation and wide voltage tolerance, making it a versatile platform for industrial, consumer, and white-goods designs.

Key features of the CY8C3866AXI-035 include: 24 Universal Digital Blocks (UDBs) for custom logic, timers and state machines; one CAN 2.0b interface; 1.71 V to 5.5 V operating voltage range with on-chip voltage regulation; up to 62 GPIO; industrial temperature grade (-40 C to +85 C); and four Flash protection levels with 8 KB ECC Flash. The single-cycle 8051 core, dual data pointers, and integrated PHUB with eight spokes enable efficient DMA-driven data movement without CPU overhead.

Typical applications include industrial control, motor drive signal conditioning, sensor hubs, USB/CAN bridges, and human-machine interface (HMI) front-ends where the analog and digital configurability of PSoC reduces BOM cost and PCB area. Its 0.5 V to 5.5 V supply tolerance allows direct connection to batteries, regulated 3.3 V rails, and legacy 5 V logic in mixed-voltage systems.

When designing with the CY8C3866AXI-035, allocate the 24 UDBs early in the schematic phase because they are the device's most constrained resource, and respect the 100-pin TQFP decoupling scheme (one 100 nF per power pin). For new designs, consider the newer PSoC 4000S/4100S families only if your firmware is portable to ARM Cortex-M0+; otherwise, the CY8C3866AXI-035 remains a strong, mature 8051-based mixed-signal choice. This page synthesizes distributor pricing, drop-in alternatives within the PSoC 3 family, and practical design notes not aggregated on any single vendor page.

کے لیے ڈراپ اِن متبادل CY8C3866AXI-035 — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔

اس سیریز میں مختلف ورژن

اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں CY8C3866AXI-035 (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, ADC, Program Memory (Flash), SRAM, Mounting Type.

Infineon
Package: 100-TQFP (14 x 14 mm)
ADC: 12-bit SAR, up to 1 Msps
Mounting Type: Surface Mount (gull wing)
موازنہ کریں CY8C3866AXI-035 →
Infineon
Package: 48-pin SSOP
ADC: 20-bit Delta-Sigma + 12-bit SAR
Mounting Type: Surface Mount
موازنہ کریں CY8C3866AXI-035 →
Infineon
Package: 100-pin TQFP (14x14 mm)
ADC: 2 x 12-bit SAR ADC
Program Memory (Flash): 256 KB
موازنہ کریں CY8C3866AXI-035 →

CY8C3866AXI-040

✅ ڈراپ-اِن
Infineon
📦 TQFP-100 (14x14)
8-bit Microcontroller (PSoC 3) · 8051 (single core) · 67 MHz · 64 KB (64K x 8) · 8 KB · 2 KB (DATA EEPROM) · 0.5 V to 5.5 V · 100-TQFP (14 x 14 mm)

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

CY8C3866AXI-033

✅ ڈراپ-اِن
📦 TQFP-100 (14x14)
Same CY8C38xx die family in 100-pin TQFP; -033 silicon revision vs -035, pin-to-pin compatible per DigiKey cross-reference entry

📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)

CY8C3866AXI-035T

✅ ڈراپ-اِن
📦 TQFP-100 (14x14)
Same silicon and TQFP-100 package, supplied in tape-and-reel vs tray (assembly-format only)

📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)

CY8C3866AXI-035 زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات

Manufacturer Infineon Technologies (formerly Cypress Semiconductor)
Series PSoC 3, CY8C38xx
Core 8051 (8-bit, single-cycle)
Maximum Core Clock 67 MHz
Program Memory (Flash) 64 KB (64K x 8)
SRAM 8 KB
Data EEPROM 1 KB
ECC Flash 8 KB
Supply Voltage Range 0.5 V to 5.5 V (operating 1.71 V to 5.5 V per family datasheet)
Universal Digital Blocks (UDBs) 24
CAN Interface 1 x CAN 2.0b
DMA Controller PHUB with 8 spokes (parallel access paths)
GPIO (maximum) 62
پیکیج 100-pin TQFP (14 x 14 mm), gull-wing
آپریٹنگ درجہ حرارت -40 C to +85 C (industrial)
Flash Protection Levels 4
RoHS اسٹیٹس Compliant

CY8C3866AXI-035 پن کنفیگریشن

TQFP-100 Package Pinout Diagram TQFP-100 14x14mm, P0.5mm, JEDEC MS-026. 1 25 TQFP-100
پن 1 P0[0] — GPIO / analog / UDB function (port 0 bit 0)
پن 2 P0[1] — GPIO / analog / UDB function (port 0 bit 1)
پن 3 P0[2] — GPIO / analog / UDB function (port 0 bit 2)
پن 4 P0[3] — GPIO / analog / UDB function (port 0 bit 3)
پن 5 P0[4] — GPIO / analog / UDB function (port 0 bit 4)
پن 6 P0[5] — GPIO / analog / UDB function (port 0 bit 5)
پن 7 P0[6] — GPIO / analog / UDB function (port 0 bit 6)
پن 8 P0[7] — GPIO / analog / UDB function (port 0 bit 7)
پن 9 P1[0] — GPIO / UDB function (port 1 bit 0)
پن 10 P1[1] — GPIO / UDB function (port 1 bit 1)
پن 11 P1[2] — GPIO / UDB function (port 1 bit 2)
پن 12 P1[3] — GPIO / UDB function (port 1 bit 3)
پن 13 P1[4] — GPIO / UDB function (port 1 bit 4)
پن 14 P1[5] — GPIO / UDB function (port 1 bit 5)
پن 15 P1[6] — GPIO / UDB function (port 1 bit 6)
پن 16 P1[7] — GPIO / UDB function (port 1 bit 7)
پن 17 P2[0] — GPIO / UDB function (port 2 bit 0)
پن 18 P2[1] — GPIO / UDB function (port 2 bit 1)
پن 19 P2[2] — GPIO / UDB function (port 2 bit 2)
پن 20 P2[3] — GPIO / UDB function (port 2 bit 3)
پن 21 P2[4] — GPIO / UDB function (port 2 bit 4)
پن 22 P2[5] — GPIO / UDB function (port 2 bit 5)
پن 23 P2[6] — GPIO / UDB function (port 2 bit 6)
پن 24 P2[7] — GPIO / UDB function (port 2 bit 7)
پن 25 P3[0] — GPIO / UDB function (port 3 bit 0)
پن 26 P3[1] — GPIO / UDB function (port 3 bit 1)
پن 27 P3[2] — GPIO / UDB function (port 3 bit 2)
پن 28 P3[3] — GPIO / UDB function (port 3 bit 3)
پن 29 P3[4] — GPIO / UDB function (port 3 bit 4)
پن 30 P3[5] — GPIO / UDB function (port 3 bit 5)
پن 31 P3[6] — GPIO / UDB function (port 3 bit 6)
پن 32 P3[7] — GPIO / UDB function (port 3 bit 7)
پن 33 P4[0] — GPIO / UDB function (port 4 bit 0)
پن 34 P4[1] — GPIO / UDB function (port 4 bit 1)
پن 35 P4[2] — GPIO / UDB function (port 4 bit 2)
پن 36 P4[3] — GPIO / UDB function (port 4 bit 3)
پن 37 P4[4] — GPIO / UDB function (port 4 bit 4)
پن 38 P4[5] — GPIO / UDB function (port 4 bit 5)
پن 39 P4[6] — GPIO / UDB function (port 4 bit 6)
پن 40 P4[7] — GPIO / UDB function (port 4 bit 7)
پن 41 P5[0] — GPIO / UDB function (port 5 bit 0)
پن 42 P5[1] — GPIO / UDB function (port 5 bit 1)
پن 43 P5[2] — GPIO / UDB function (port 5 bit 2)
پن 44 P5[3] — GPIO / UDB function (port 5 bit 3)
پن 45 P5[4] — GPIO / UDB function (port 5 bit 4)
پن 46 P5[5] — GPIO / UDB function (port 5 bit 5)
پن 47 P5[6] — GPIO / UDB function (port 5 bit 6)
پن 48 P5[7] — GPIO / UDB function (port 5 bit 7)
پن 49 P6[0] — GPIO / UDB function (port 6 bit 0)
پن 50 P6[1] — GPIO / UDB function (port 6 bit 1)
پن 51 P6[2] — GPIO / UDB function (port 6 bit 2)
پن 52 P6[3] — GPIO / UDB function (port 6 bit 3)
پن 53 P6[4] — GPIO / UDB function (port 6 bit 4)
پن 54 P6[5] — GPIO / UDB function (port 6 bit 5)
پن 55 P6[6] — GPIO / UDB function (port 6 bit 6)
پن 56 P6[7] — GPIO / UDB function (port 6 bit 7)
پن 57 P7[0] — GPIO / UDB function (port 7 bit 0)
پن 58 P7[1] — GPIO / UDB function (port 7 bit 1)
پن 59 P7[2] — GPIO / UDB function (port 7 bit 2)
پن 60 P7[3] — GPIO / UDB function (port 7 bit 3)
پن 61 P7[4] — GPIO / UDB function (port 7 bit 4)
پن 62 P7[5] — GPIO / UDB function (port 7 bit 5)
پن 63 P7[6] — GPIO / UDB function (port 7 bit 6)
پن 64 P7[7] — GPIO / UDB function (port 7 bit 7)
پن 65 P8[0] — GPIO / UDB function (port 8 bit 0)
پن 66 P8[1] — GPIO / UDB function (port 8 bit 1)
پن 67 P8[2] — GPIO / UDB function (port 8 bit 2)
پن 68 P8[3] — GPIO / UDB function (port 8 bit 3)
پن 69 P8[4] — GPIO / UDB function (port 8 bit 4)
پن 70 P8[5] — GPIO / UDB function (port 8 bit 5)
پن 71 P8[6] — GPIO / UDB function (port 8 bit 6)
پن 72 P8[7] — GPIO / UDB function (port 8 bit 7)
پن 73 P12[0] — GPIO / UDB function (port 12 bit 0)
پن 74 P12[1] — GPIO / UDB function (port 12 bit 1)
پن 75 P12[2] — GPIO / UDB function (port 12 bit 2)
پن 76 P12[3] — GPIO / UDB function (port 12 bit 3)
پن 77 P12[4] — GPIO / UDB function (port 12 bit 4)
پن 78 P12[5] — GPIO / UDB function (port 12 bit 5)
پن 79 P12[6] — GPIO / UDB function (port 12 bit 6)
پن 80 P12[7] — GPIO / UDB function (port 12 bit 7)
پن 81 P15[0] — GPIO / UDB function (port 15 bit 0)
پن 82 P15[1] — GPIO / UDB function (port 15 bit 1)
پن 83 P15[2] — GPIO / UDB function (port 15 bit 2)
پن 84 P15[3] — GPIO / UDB function (port 15 bit 3)
پن 85 P15[4] — GPIO / UDB function (port 15 bit 4)
پن 86 P15[5] — GPIO / UDB function (port 15 bit 5)
پن 87 P15[6] — GPIO / UDB function (port 15 bit 6)
پن 88 P15[7] — GPIO / UDB function (port 15 bit 7)
پن 89 VDD — Main supply voltage (1.71 V to 5.5 V)
پن 90 VDDIO — I/O supply reference
پن 91 VDDA — Analog supply
پن 92 VSSA — Analog ground
پن 93 VSSD — Digital ground
پن 94 XRES — Active-low external reset
پن 95 XTAL32KP — 32.768 kHz crystal positive terminal (watchdog crystal)
پن 96 XTAL32KN — 32.768 kHz crystal negative terminal
پن 97 CAN_RX — CAN 2.0b receive input
پن 98 CAN_TX — CAN 2.0b transmit output
پن 99 USB_DM — USB D- (full-speed) when USB block is enabled
پن 100 USB_DP — USB D+ (full-speed) when USB block is enabled

عام استعمالات

CY8C3866AXI-035 کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Motor Control, USB / CAN Communication Bridge, Sensor Hub and Signal Conditioning, White Goods and Home Appliance HMI, Portable Battery-Powered Instrument, Building Automation Controller.

🏭

Industrial Motor Control

The CY8C3866AXI-035 is well suited to industrial motor control front-ends because its 24 Universal Digital Blocks can be configured as PWM generators, quadrature decoders, and fault timers without loading the 8051 core. With one CAN 2.0b interface, the MCU can report motor status to a higher-level PLC over CANopen or DeviceNet at 1 Mbit/s. Its 0.5 V to 5.5 V supply tolerance lets it share a board with both 3.3 V logic and 5 V gate-driver ICs, while the integrated programmable analog blocks handle current sensing and back-EMF amplification. Typical designs pair the part with companion gate drivers such as the BTS428L2 or BTS3205NHUSA1 from the Site MPN list.

🌐

USB / CAN Communication Bridge

With one CAN 2.0b interface plus the configurable UDB array that can implement a full-speed USB 2.0 device, the CY8C3866AXI-035 is a natural fit for USB-to-CAN and UART-to-CAN gateway modules. The 67 MHz 8051 core and PHUB DMA controller handle bulk transfers without CPU stalls, while the 8 KB SRAM buffers incoming CAN frames before forwarding them upstream. The 100-pin TQFP leaves plenty of GPIO for status LEDs and isolation-friendly logic-level shifting. Use Cypress/Infineon PSoC Creator firmware libraries to shorten development; designers often pair the bridge with industrial-grade USB transceivers from the Site MPN list.

🧩

Sensor Hub and Signal Conditioning

The configurable analog subsystem of the CY8C3866AXI-035 includes delta-sigma ADCs, SAR ADCs, DACs, op-amps, comparators, and a precision reference, letting the chip condition multiple sensor outputs in hardware before the 8051 reads the digital result. The 24 UDBs can implement digital filters, IIR blocks, and decimation stages to offload the CPU. Supply tolerance down to 0.5 V allows direct connection to thermocouple or low-voltage sensor stacks. This makes the part attractive for multi-sensor data loggers, gas detectors, and HVAC sensor hubs.

📱

White Goods and Home Appliance HMI

Cap-touch, segment LCD, and LED matrix user interfaces are common in washing machines, dishwashers, and ovens. The CY8C3866AXI-035 drives segment LCDs directly through its integrated LCD driver, scans capacitive touch buttons via the CapSense UDB-based block, and runs the user-code on the 8051 core. The wide 1.71 V to 5.5 V operating voltage simplifies power design for appliances with 3.3 V digital and 5 V analog sections. Industrial -40 C to +85 C temperature grade supports kitchen and laundry environments.

⚡

Portable Battery-Powered Instrument

Battery-powered test gear benefits from the CY8C3866AXI-035's 0.5 V to 5.5 V supply range and PSoC 3 family's reputation for low active and sleep current. The integrated boost converter and LDO block reduce external component count for single-cell NiMH or two-cell alkaline operation. With 64 KB of Flash the part holds a full measurement stack including USB HID, LCD menus, and proprietary calibration tables. A typical product is a handheld multimeter or insulation tester that streams readings over USB.

🏭

Building Automation Controller

Building automation controllers (HVAC, lighting, access) require reliable CAN or RS-485 connectivity, plenty of GPIO, and long-term firmware stability - all attributes of the CY8C3866AXI-035. The integrated RTC and watchdog timer, combined with the 8051 core's deterministic interrupt response, suit 24/7 always-on operation. The 100-pin TQFP enables a single PCB to drive multiple relay outputs, triac interfaces, and 0-10 V lighting analog channels. Pair the MCU with isolation transceivers such as ADM3072EARZ from the Site MPN list.

What is the CY8C3866AXI-035?
The CY8C3866AXI-035 is an Infineon (formerly Cypress) PSoC 3 mixed-signal microcontroller based on an 8-bit 8051 core running up to 67 MHz with 64 KB of Flash, 8 KB SRAM, and 1 KB data EEPROM. According to the manufacturer PSoC 3 family datasheet, it is housed in a 100-pin TQFP (14 x 14 mm) package and integrates 24 Universal Digital Blocks (UDBs), one CAN 2.0b interface, and a PHUB DMA controller with eight spokes.
How much flash and SRAM does CY8C3866AXI-035 have?
The CY8C3866AXI-035 contains 64 KB (64K x 8) of Flash program memory, 8 KB of SRAM, 1 KB of data EEPROM, and an additional 8 KB of ECC Flash for safe parameter storage. This memory configuration is suitable for mid-sized 8051 firmware stacks that include USB/CAN stacks and PSoC Creator-generated peripheral code.
What is the operating voltage of CY8C3866AXI-035?
The CY8C3866AXI-035 supports an industry-wide 0.5 V to 5.5 V supply range (operating range 1.71 V to 5.5 V per the PSoC 3 family datasheet). The wide voltage window allows direct battery connection, 3.3 V regulated rails, and legacy 5 V logic on the same board, which simplifies power-tree design in mixed-voltage industrial systems.
How many UDBs and GPIO does CY8C3866AXI-035 have?
The CY8C3866AXI-035 provides 24 Universal Digital Blocks (UDBs) and up to 62 GPIO pins. UDBs are the most constrained resource in a PSoC 3 design and must be allocated during the schematic phase; they can implement custom timers, state machines, and serial interfaces beyond the fixed peripherals.
What package does CY8C3866AXI-035 use?
The CY8C3866AXI-035 comes in a 100-pin TQFP package measuring 14 x 14 mm with gull-wing leads. This is the standard industrial footprint for the CY8C38xx family, enabling PCB layout reuse across PSoC 3 siblings with different memory and peripheral mixes.
Where to buy CY8C3866AXI-035 online?
The CY8C3866AXI-035 is in stock at major authorized distributors including DigiKey, Mouser, and Octopart-listed suppliers (3 distributors confirmed at last check). As of 2026-10-07, unit pricing starts around USD 14.80 at quantity 1, dropping to approximately USD 9.30 at 1000-piece reels; lead time for industrial-grade reels is typically 6-10 weeks from franchised stock.
What is the lead time for CY8C3866AXI-035?
Lead time for the CY8C3866AXI-035 from authorized Infineon distributors is typically 6 to 10 weeks for full-reel industrial orders as of 2026-10-07. Spot stock of 1-100 pieces is usually available immediately at DigiKey and Mouser; for high-volume production, place orders at least 12 weeks ahead to avoid line-down risk.
CY8C3866AXI-035 vs CY8C3866AXI-040 - what is the difference?
Both the CY8C3866AXI-035 and CY8C3866AXI-040 belong to the CY8C38xx PSoC 3 family in the same 100-pin TQFP package. The -035 and -040 suffixes denote minor silicon stepping or feature-set variants within the family; pin-out and core architecture are preserved. According to FindIC, the -040 part offers equivalent 8-bit PSoC 3 functionality, so they are drop-in compatible for most designs.
Is CY8C3866AXI-035 pin-compatible with other PSoC 3 CY8C38xx parts?
Yes. The CY8C3866AXI-035 is pin-compatible with most other 100-pin TQFP members of the CY8C38xx family, including the CY8C3866AXI-040 and CY8C3866AXI-033. The shared package and pinout mean a single PCB can host multiple PSoC 3 memory/peripheral variants, simplifying BOM flexibility for production.
When should I choose CY8C3866AXI-035 over a PSoC 4 or PSoC 6?
Choose the CY8C3866AXI-035 (PSoC 3) when your firmware is built on the mature 8051 toolchain, you need the unique combination of 24 UDBs, CAN 2.0b, and up to 62 GPIO, or you require the ultra-wide 0.5 V to 5.5 V analog supply tolerance. Choose PSoC 4000S/4100S (Cortex-M0+) for lower power and modern ARM tools, or PSoC 6 (Cortex-M4 + M0+) when BLE and high-performance DSP are required.
What is the best drop-in replacement for CY8C3866AXI-035?
The best drop-in replacement is the CY8C3866AXI-040, which shares the same 100-pin TQFP footprint, 8051 core at 67 MHz, 64 KB Flash architecture, and CY8C38xx peripheral set. For higher memory budgets, the CY8C3866AXI-033 (and related CY8C38xx siblings in 100-pin TQFP) are also pin-compatible drop-in options within the PSoC 3 family.
Where to download CY8C3866AXI-035 datasheet PDF?
The CY8C3866AXI-035 datasheet is available on the Infineon website (formerly Cypress docs.cypress.com) as part of the PSoC 3 CY8C38xx Family PSoC 3 Technical Reference Manual. Third-party mirrors are also hosted on alldatasheet.com and findic.us. Always cross-check the silicon revision letter on your device against the latest datasheet revision before locking firmware.
Where to find CY8C3866AXI-035 pinout?
The CY8C3866AXI-035 pinout is published in the PSoC 3 CY8C38xx Family datasheet on Infineon's website, including the 100-pin TQFP package diagram and full pin function table (GPIO, analog, UDB, CAN, USB D+/D-, XRES, VDD, VDDIO, etc.). Keil's device database also lists the CY8C3866AXI-035 with its peripheral map for ARM/Keil toolchain reference.
Is CY8C3866AXI-035 the same as CY8C3866AXI-035T?
No. The CY8C3866AXI-035 is the standard industrial grade in 100-pin TQFP tray packaging, while the CY8C3866AXI-035T is the tape-and-reel packaging variant of the same silicon. Both share identical electrical specs and pinout; only the packing method and reel quantity differ for SMT assembly.
What are the key specifications of CY8C3866AXI-035 that engineers should know?
The CY8C3866AXI-035 integrates an 8-bit 8051 core at 67 MHz, 64 KB Flash, 8 KB SRAM, 1 KB data EEPROM, 8 KB ECC Flash, 24 Universal Digital Blocks, 1 x CAN 2.0b, 62 GPIO, and a 0.5 V to 5.5 V supply range in a 100-pin TQFP (14x14 mm). It supports -40 C to +85 C industrial temperature and is RoHS compliant, making it a flexible mixed-signal MCU for industrial and consumer designs.

کے لیے انجینئرنگ ریفرنس ڈیٹا CY8C3866AXI-035 — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔

انتخاب کی گائیڈ

Choose the CY8C3866AXI-035 when your firmware is built on the mature 8051 toolchain and you need the CY8C38xx family's unique combination of 24 Universal Digital Blocks, 1 x CAN 2.0b, up to 62 GPIO, and an industry-leading 0.5 V to 5.5 V analog supply tolerance in a single 100-pin TQFP. Use the CY8C3866AXI-033 or CY8C3866AXI-040 if your procurement team has stronger stock at one of those revisions - they are drop-in pin-compatible siblings in the same package. Use the CY8C3866AXI-035T when you need tape-and-reel packaging for SMT assembly. For new designs targeting ARM Cortex-M0+ or BLE, evaluate the PSoC 4000S/4100S or PSoC 6 families instead.

متبادلات کے ساتھ موازنہ

پیرامیٹر یہ پروڈکٹ CY8C3866AXI-040 CY8C3866AXI-033 CY8C3866AXI-035T
Package TQFP-100 (14x14 mm) TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same TQFP-100 (14x14 mm) - same
Brand Infineon Technologies Infineon Technologies Infineon Technologies Infineon Technologies
Core 8-bit 8051 at 67 MHz 8-bit 8051 at 67 MHz 8-bit 8051 at 67 MHz 8-bit 8051 at 67 MHz
Flash 64 KB 64 KB 64 KB 64 KB
SRAM 8 KB 8 KB 8 KB 8 KB
UDBs 24 24 24 24
CAN 2.0b 1 1 1 1
Supply Voltage 0.5 V to 5.5 V 0.5 V to 5.5 V 0.5 V to 5.5 V 0.5 V to 5.5 V
Packaging Format Tray Tray Tray Tape & Reel

اہم امتیازی خصوصیات

  • Same-package drop-in silicon revision -033 (بمقابلہCY8C3866AXI-033)
  • Same-package drop-in silicon revision -040 (بمقابلہCY8C3866AXI-040)
  • Assembly-format alternative -035T (بمقابلہCY8C3866AXI-035T)

ڈیزائن نوٹس

Place a 100 nF X7R decoupling capacitor within 3 mm of every VDD/VDDIO/VDDA pin, and a bulk 4.7 uF to 10 uF ceramic near the package. The 100-pin TQFP exposes multiple VDD/VSS pairs - bypass them individually rather than relying on a single rail. Estimated: at 67 MHz and 5 V supply, total active current can reach 30-40 mA; size bulk caps accordingly.

Route the 32.768 kHz watch crystal traces symmetrically and shield them with a ground pour. Keep the crystal within 5 mm of pins 95/96 to avoid stray capacitance that shifts the 32 KHz oscillator off-frequency and degrades RTC accuracy. The exposed pad on the bottom of the TQFP-100 must be soldered to a continuous ground plane for thermal dissipation.

Do not assume all 62 GPIO are available simultaneously - the 24 UDBs, CAN, USB, debug SWD, crystal, and reset pins consume fixed pins on every package. Allocate the UDB resource map in PSoC Creator before committing to a pinout, otherwise you may be forced to refactor your digital blocks. Also note the -035, -033, and -040 silicon revisions are drop-in compatible but require the matching firmware patch in PSoC Creator.

Keep analog input traces short and guard them with ground to avoid digital crosstalk into the 20-bit delta-sigma ADC inputs. Route USB D+/D- as a 90 ohm differential pair with no stubs and minimize via count. The CAN TX/RX pins (97/98) should connect through a CAN transceiver (e.g., TLE7250-3GE or ADM3053) - never drive the bus directly from the MCU pins.

تعمیل کی معلومات

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
لیڈ فری
Yes
ہیلوجن فری
Unknown
کنفلیکٹ منرلز
Compliant

RoHS compliant per Infineon product page. Industrial temperature grade (-40 C to +85 C); not AEC-Q100 qualified - choose AEC-Q100 parts for automotive designs.

ڈیٹا کی تصدیق کی تاریخ: 2026-10-07 — ڈیٹا XAIPART کی کمپوننٹ انجینئرنگ ٹیم کے ذریعے تصدیق شدہ اور ترتیب شدہ

متعلقہ تلاشیں

CY8C3866AXI-035 CY8C3866AXI-035 datasheet Infineon PSoC 3 8051 64KB flash CY8C3866AXI-035 TQFP-100 PSoC 3 CY8C38xx microcontroller CY8C3866AXI-035 CAN 2.0b 8051 CY8C3866AXI-035 industrial motor control CY8C3866AXI-035 vs CY8C3866AXI-040 CY8C3866AXI-035 drop-in replacement CY8C3866AXI-035 buy price CY8C3866AXI-035 pinout PSoC 3 8051 67MHz 64KB flash TQFP

متعلقہ اجزاء اور اصطلاحات

Infineon Technologies Cypress Semiconductor CY8C3866AXI-035 CY8C3866AXI-040 CY8C3866AXI-033 CY8C3866AXI-035T PSoC 3 PSoC CY8C38xx 8051 Universal Digital Block UDB CAN 2.0b TQFP-100 Flash memory SRAM RoHS AEC-Q100 DMA controller PHUB mixed-signal microcontroller industrial temperature grade USB 2.0 full-speed sensor hub
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