CY8C27443-24PVXIT - 8-bit PSoC 1 MCU, 24MHz, 16KB Flash | Infineon
MPN: CY8C27443-24PVXIT ✓ Hoạt độngCY8C27443-24PVXIT Tóm tắt
A PSoC (Programmable System-on-Chip) is a mixed-signal MCU that combines a CPU, configurable analog peripherals (op-amps, filters, ADCs, DACs, comparators), and configurable digital peripherals (timers, PWMs, UARTs, SPI, CRC) in space, all wired through an internal programmable interconnect. PSoC belongs to the hypernym hierarchy: PSoC 1 -> mixed-signal microcontroller -> microcontroller -> embedded controller -> semiconductor IC. Unlike fixed-function MCUs, the user-programmable analog and digital blocks let a single PSoC 1 device replace multiple discrete op-amps, timers and counter components on the BOM.
The CY8C27443 family integrates up to 24 GPIO pins, an 8-channel 14-bit delta-sigma ADC (depending on configuration), multiple digital PSoC blocks, full-speed USB 2.0 on selected SKUs (not the -24PVXIT), and an M8C 8-bit Harvard-architecture core. The industrial-grade operating window of -40C to +85C plus 15-year longevity make it attractive for long-lifecycle industrial equipment, white goods, and sensor conditioning nodes where the MCU family must remain available for a decade or more without forced requalification.
Architecturally, the CY8C27443-24PVXIT uses four digital PSoC blocks and twelve analog PSoC blocks interconnected via a programmable switch matrix. This analog/digital co-design lets designers instantiate filters, instrumentation amplifiers, and 14-bit ADCs directly on-chip, which reduces analog front-end component count by up to 50% versus a conventional 8-bit MCU + external op-amp/filter design.
Typical applications include industrial sensor conditioning (strain gauge, thermocouple, RTD, 4-20 mA loop), USB HID peripherals in the SKUs that include the USB block, white-goods and appliance control boards, smart-card / secure-access readers, and human-interface panels with capacitive touch buttons. It is also commonly used in HVAC thermostats, motor control BLDC drivers, and battery chargers requiring programmable analog front-ends.
When designing with this part, evaluate whether the application actually needs 16 KB of Flash and 24 MHz; if lower power and lower analog block counts suffice, the CY8C21323 family or CY8C21x34 family may provide a smaller / cheaper pin-compatible fit. Developers should plan for the PSoC Designer IDE (legacy tool chain) rather than ModusToolbox, because PSoC 1 devices are not supported by ModusToolbox.
This page synthesises distributor pricing, drop-in same-package alternatives, datasheet pointers, and practical design notes that go beyond what is presented on the bare Infineon product page.
Bộ thay thế dễ dàng lắp đặt cho CY8C27443-24PVXIT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với CY8C27443-24PVXIT (cùng hình factor và footprint) — khác nhau ở Package, Programmable Analog Blocks, Series, Supply Voltage.
CY8C27443-24PVXI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
CY8C27543-24PVXIT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C27643-24PVXIT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C27443-24SXI
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C27443-24SXIES
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C27443-24PVXIT Tỷ lệ tối đa & tính chất điện
| Product Type | PSoC 1 Mixed-Signal Microcontroller |
| Series | CY8C27x43 (PSoC 1) |
| CPU Core | M8C (8-bit Harvard) |
| Maximum CPU Clock | 24 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (SRAM) | 256 bytes |
| Supply Voltage - Operating | 3.0 V to 5.25 V |
| GPIO Count | Up to 24 |
| Digital PSoC Blocks | 4 |
| Analog PSoC Blocks | 12 |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 28-pin SSOP |
| Kiểu lắp đặt | Surface Mount |
| Longevity Program | 15 years |
| Đông trùng haogen | Yes |
| RoHS Compliance | Compliant |
| Lead-Free Plating | Yes |
| Packaging | Tape and Reel (7-inch) |
Cấu hình chân CY8C27443-24PVXIT
| Chân 1 | P0[0] — GPIO / Analog I/O / SIO |
| Chân 2 | P0[1] — GPIO / Analog I/O |
| Chân 3 | P0[2] — GPIO / Analog I/O |
| Chân 4 | P0[3] — GPIO / Analog I/O |
| Chân 5 | P0[4] — GPIO / Analog I/O |
| Chân 6 | P0[5] — GPIO / Analog I/O |
| Chân 7 | P0[6] — GPIO / Analog I/O |
| Chân 8 | P0[7] — GPIO / Analog I/O |
| Chân 9 | Vss — Ground |
| Chân 10 | P1[0] — GPIO / I2C SCL |
| Chân 11 | P1[1] — GPIO / I2C SDA |
| Chân 12 | P1[2] — GPIO |
| Chân 13 | P1[3] — GPIO |
| Chân 14 | P1[4] — GPIO |
| Chân 15 | P1[5] — GPIO |
| Chân 16 | P1[6] — GPIO / XTALin |
| Chân 17 | P1[7] — GPIO / XTALout |
| Chân 18 | Vdd — Power supply 3.0-5.25 V |
| Chân 19 | P2[0] — GPIO |
| Chân 20 | P2[1] — GPIO |
| Chân 21 | P2[2] — GPIO |
| Chân 22 | P2[3] — GPIO |
| Chân 23 | P2[4] — GPIO |
| Chân 24 | P2[5] — GPIO |
| Chân 25 | P2[6] — GPIO |
| Chân 26 | P2[7] — GPIO |
| Chân 27 | Vss — Ground |
| Chân 28 | XRES — External reset (active high) |
Ứng dụng tiêu biểu
CY8C27443-24PVXIT phù hợp cho 6 Áp dụngs: Industrial Sensor Conditioning (4-20 mA / RTD / Bridge), White-Goods Control Boards (Washing Machines / Dishwashers / HVAC), USB HID Peripherals (Keyboard / Mouse / Custom HID), Smart-Card / Secure Access Readers, Human Interface / Cap-Touch Button Panels, Battery Chargers / Power Management Front-Ends.
Industrial Sensor Conditioning (4-20 mA / RTD / Bridge)
The CY8C27443-24PVXIT's 12 analog PSoC blocks and 24 MHz M8C core fit industrial sensor conditioning front-ends requiring an in-place instrumentation amplifier, gain stage, and 14-bit ADC chain on-chip. With 3.0-5.25 V supply tolerance, it can interface directly to 4-20 mA current-loop transmitters and 24 V industrial rails via external drop-downs, and the on-chip analog blocks implement 8 -to 14-bit delta-sigma ADCs and programmable gain amplifiers directly on-chip. Designers typically allocate one analog block to instrumentation amp, another to anti-alias filter, and one to 14-bit ADC, leaving digital blocks for PWM output to a DAC or motor control. The 16 KB Flash holds calibration constants, eight-bit synthesised look-up tables for linearisation, and the Modbus-RTU protocol stack typically expected by 4-20 mA loops.
Được đề xuất
White-Goods Control Boards (Washing Machines / Dishwashers / HVAC)
The CY8C27443-24PVXIT's combination of 24 GPIO, 12 analog PSoC blocks and industrial -40C to +85C operation suits washing-machine motor and HVAC compressor control boards. Designers use the analog blocks for AC-line voltage zero-crossing detection, motor current sensing and temperature sensor ADC, while the digital PSoC blocks generate TRIAC-trigger PWMs and timer run-times. The industrial temperature grade supports refrigerator/freezer storage and unattended oven-temperature drive bays, and the on-package 16 KB Flash holds the user interface, fault diagnostic log, and energy-algorithm state machine. Infineon's 15-year longevity commitment and industrial temperature rating remove forced-requalification risk on long-life white-goods platforms.
Được đề xuất
USB HID Peripherals (Keyboard / Mouse / Custom HID)
Although the -24PVXIT variant does not include the USB block, designers frequently use the CY8C27443 family on digital peripherals for USB HID -keyboard or -mouse peripherals when paired with the CY8C27643 / CY8C27543 family members. The 24 MHz CPU, 16 KB Flash, 256-byte SRAM and 24 GPIO suit multi-key matrix scanning. Designers integrate with multiple UI key matrices, capacitive LEDs, and a rotary encoder via external capacitive-touch sensors while the same MCU scans key states, debounces, and dispatches HID reports over USB 2.0 full-speed. The 256-byte SRAM holds the HID report descriptor and key state machine; the on-chip analog blocks implement row-column scan drivers directly.
Được đề xuất
Smart-Card / Secure Access Readers
The CY8C27443-24PVXIT's 12 analog PSoC blocks implement the precise analog front-end for ISO-7816 smart-card readers and secure access terminals. One analog block implements the card-supply voltage boost converter, another the bidirectional serial-data line driver, and one the over-current comparator required by smart-card standards. The 16 KB Flash holds the ISO-7816 T=0/T=1 protocol stack, while 256-byte SRAM holds the card-to-host APDU exchange buffer. The industrial temperature grade supports outdoor-mounted payment terminals, parking meters, and ticketing kiosks; the 15-year longevity removes forced-requalification risk on payment deployments where certification standards demand end-of-life re-cert.
Được đề xuất
Human Interface / Cap-Touch Button Panels
The CY8C27443-24PVXIT's 12 analog PSoC blocks implement Cypress's CapSense capacitive-touch sensing algorithm directly on-chip, eliminating the dedicated cap-touch controller on the BOM. Designers wire each touch electrode to one analog block, which the firmware scans and debounces via the on-chip Cypress-proprietary CSA/CSD algorithm. The 24 GPIO supports up to 24 cap-touch buttons or a small matrix-style slider/wheel, plus indicator LEDs and an optional LCD bias pin. The 16 KB Flash holds the CapSense tuning algorithm and the I2C-keypad-report stack; the industrial temperature grade supports outdoor keypads on ticket kiosks, ATM PIN pads, and appliance front panels.
Được đề xuất
Battery Chargers / Power Management Front-Ends
The CY8C27443-24PVXIT's 12 analog PSoC blocks and digital PSoC blocks together implement closed-loop charger firmware for lead-acid, Li-ion and supercapacitor energy storage. One analog block implements voltage-mode ADC for Vbat sensing, another current-mode ADC for shunt-current sensing, while the digital blocks generate the PWM drivers for synchronous buck/boost converters. The 256-byte SRAM holds state-machine context across converter-mode transitions; the industrial -40C to +85C range supports outdoor storage and unattended-cabinet drive bays. The 15-year longevity is valuable for fleet vehicle charging bays and energy-storage drive bays where redesign/requalification costs are non-trivial.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho CY8C27443-24PVXIT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | CY8C27443-24PVXI | CY8C27543-24PVXIT | CY8C27643-24PVXIT | CY8C27443-24SXI | CY8C27443-24SXIES |
|---|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | 28-pin SSOP | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SOIC - different body width | 28-pin SOIC - different body width |
| CPU Core | M8C 8-bit | M8C 8-bit | M8C 8-bit | M8C 8-bit | M8C 8-bit | M8C 8-bit |
| Maximum CPU Clock | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz | 24 MHz |
| Flash Memory | 16 KB | 16 KB | 32 KB (+100%) | 64 KB (+300%) | 16 KB | 16 KB |
| SRAM | 256 bytes | 256 bytes | 512 bytes | 2 KB | 256 bytes | 256 bytes |
| Supply Voltage | 3.0 V to 5.25 V | 3.0 V to 5.25 V | 3.0 V to 5.25 V | 3.0 V to 5.25 V | 3.0 V to 5.25 V | 3.0 V to 5.25 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Packaging | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tube/SOIC-28 | Tube/SOIC-28 |
| RoHS / Halogen Free | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
Bảo phân biệt quan trọng
- Programmable analog/digital blocks reduce external 8-bit BOM (vsATMEGA328P-AUR)
- Industrial 15-year supply commitment (vsC8051F126-GQR)
- Same 28-pin SSOP family scalability (vsCY8C21323-24PVXI)
Ghi chú thiết kế
Place a 1 uF decoupling capacitor as close as possible to the Vdd pin (pin 18) and a 100 nF high-frequency bypass cap adjacent to it. The CY8C27443-24PVXIT can draw transient spikes of several hundred mA on Vdd when analog PSoC blocks switch; inadequate decoupling causes POR resets and analog block noise injection. Add a 10 uF bulk cap on the supply rail within 25 mm of the IC.
The 28-pin SSOP package is 0.65 mm pitch and 5.30 mm body width - use 0.30 mm-wide traces with 0.15 mm clearance to escape-route all 24 GPIO. Place ground pour under the SSOP body and stitch with at least 4 ground vias around the IC for thermal dissipation and analog-noise isolation. Analog input traces (P0[0..7]) should be length-matched and kept short to preserve ADC accuracy.
Do NOT attempt to develop PSoC 1 firmware in ModusToolbox - PSoC 1 devices are only supported by the legacy PSoC Designer IDE. The PSoC Designer project file (.dwr) is required for PSoC 1 firmware build. Ensure global interrupts remain enabled during analog-block reconfiguration, or block-to-bus assignments may be lost. Also, the CY8C27443-24PVXIT does NOT include the USB peripheral block; use CY8C27543 / CY8C27643 for USB HID designs.
Thông tin tuân thủ
Per Infineon product page: 15-year longevity, halogen free, RoHS compliant, lead free. Not AEC-Q100 qualified - this is an industrial-grade MCU, not automotive-grade. CY8PCH67543-Q1 equivalent family member is available for automotive.
