CY8C4247AZI-L423T - PSoC 4200L 128KB Flash MCU | Infineon
MPN: CY8C4247AZI-L423T ✓ Hoạt độngCY8C4247AZI-L423T Tóm tắt
A PSoC (Programmable System-on-Chip) is a microcontroller family that combines a CPU core with a fabric of programmable analog and digital Universal Digital Blocks (UDBs) and configurable analog peripherals such as op-amps, ADCs, DACs, and comparators. The PSoC 4200L sits within the broader hierarchy: PSoC 4 -> ARM Cortex-M0 MCU family -> 32-bit microcontroller -> embedded controller -> semiconductor IC. This integration lets designers replace multiple discrete analog ICs with software-reconfigurable on-chip resources.
Key features of the CY8C4247AZI-L423T include a 12-bit SAR ADC with up to 1 Msps sample rate, 4 op-amps, 4 configurable Timer/Counter/PWM blocks, 2 IDAC channels, and a 2.4V to 5.5V operating voltage range. The device also offers capacitive touch sensing (CapSense) capability, USB device support via the integrated USB 2.0 Full-Speed peripheral, and Cryptographic AES hardware block. The wide operating range and rich analog make it suitable for consumer, industrial, and IoT end products.
The device uses a Cortex-M0 core with single-cycle GPIO access, deterministic interrupt handling, and a low-power Sleep mode drawing microamp-level currents. The programmable logic (UDB) layer connects analog and digital resources via the Digital System Interconnect (DSI) matrix, allowing functions like PWM, UART, SPI, or I2S to be implemented in hardware without external peripherals. The 128 KB Flash is organized as 128K x 8 and supports in-application programming via the bootloader.
Typical applications include CapSense touch buttons and sliders for appliances and wearables, USB HID peripherals such as mice and keyboards, sensor hub and signal conditioning nodes, motor control firmware for small DC and stepper motors, and LED lighting controllers requiring analog dimming. The wide 1.71V-5.5V supply range and integrated analog front end simplify BOM in mixed-signal designs.
Design with the CY8C4247AZI-L423T using PSoC Creator IDE or ModusToolbox. Pay attention to decoupling: place 0.1 uF and 1 uF ceramics adjacent to each VDD pin, and follow CapSense layout guidelines (guard ring, ground flood, no traces under sensors) for robust touch performance. The 48-pin TQFP is footprint-compatible with several PSoC 4200L family variants, simplifying upgrades.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, application-specific design notes, and selection guidance that go beyond the manufacturer datasheet, helping engineers source, compare, and integrate the CY8C4247AZI-L423T quickly.
Bộ thay thế dễ dàng lắp đặt cho CY8C4247AZI-L423T — 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 CY8C4247AZI-L423T (cùng hình factor và footprint) — khác nhau ở Core, Package, ADC, Operating Temperature Range, CapSense.
CY8C4247AZI-L423
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
CY8C4246AZI-M445
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →CY8C4245AZI-L423
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
CY8C4248AZI-L423
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C4247LQI-BL423
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
CY8C4247AZI-L423T Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M0 |
| Bit Width | 32-bit |
| Tần số xung maksimum | 48 MHz |
| Flash Memory | 128 KB (128K x 8) |
| SRAM | 16 KB |
| DMA Channels | 32 |
| Operating Voltage Range | 1.71 V to 5.5 V |
| ADC | 12-bit SAR, up to 1 Msps |
| Operational Amplifiers | 4 on-chip |
| IDAC Channels | 2 |
| TCPWM Blocks | 4 (16-bit) |
| USB | USB 2.0 Full-Speed device |
| Hộp | 48-TQFP (7x7 mm) |
| Khoảng nhiệt độ hoạt động | -40C to +85C |
| Trạng thái RoHS | Compliant |
Cấu hình chân CY8C4247AZI-L423T
| Chân 1 | P0.0 — GPIO / CapSense CSD |
| Chân 2 | P0.1 — GPIO / CapSense CSD |
| Chân 3 | P0.2 — GPIO / CapSense CSD |
| Chân 4 | P0.3 — GPIO / CapSense CSD |
| Chân 5 | P0.4 — GPIO / CapSense CSD |
| Chân 6 | P0.5 — GPIO / CapSense CSD |
| Chân 7 | P0.6 — GPIO / CapSense CSD |
| Chân 8 | P0.7 — GPIO / CapSense CSD |
| Chân 9 | VDD — Digital supply (1.71-5.5V) |
| Chân 10 | VDDA — Analog supply |
| Chân 11 | VSSD — Digital ground |
| Chân 12 | VSSA — Analog ground |
| Chân 13 | P1.0 — GPIO / TCPWM |
| Chân 14 | P1.1 — GPIO / TCPWM |
| Chân 15 | P1.2 — GPIO / TCPWM |
| Chân 16 | P1.3 — GPIO / TCPWM |
| Chân 17 | P1.4 — GPIO / TCPWM |
| Chân 18 | P1.5 — GPIO / TCPWM |
| Chân 19 | P1.6 — GPIO / TCPWM |
| Chân 20 | P1.7 — GPIO / TCPWM |
| Chân 21 | P2.0 — GPIO |
| Chân 22 | P2.1 — GPIO |
| Chân 23 | P2.2 — GPIO |
| Chân 24 | P2.3 — GPIO |
| Chân 25 | P2.4 — GPIO |
| Chân 26 | P2.5 — GPIO |
| Chân 27 | P2.6 — GPIO |
| Chân 28 | P2.7 — GPIO |
| Chân 29 | P3.0 — GPIO / I2C SCL |
| Chân 30 | P3.1 — GPIO / I2C SDA |
| Chân 31 | P3.2 — GPIO / SPI MOSI |
| Chân 32 | P3.3 — GPIO / SPI MISO |
| Chân 33 | P3.4 — GPIO / SPI SCK |
| Chân 34 | P3.5 — GPIO / UART TX |
| Chân 35 | P3.6 — GPIO / UART RX |
| Chân 36 | P3.7 — GPIO |
| Chân 37 | P4.0 — GPIO |
| Chân 38 | P4.1 — GPIO |
| Chân 39 | P5.0 — GPIO / USB D+ |
| Chân 40 | P5.1 — GPIO / USB D- |
| Chân 41 | VUSB — USB supply |
| Chân 42 | VSSD — Digital ground |
| Chân 43 | XRES — External reset (active low) |
| Chân 44 | SWDIO — SWD data |
| Chân 45 | SWDCLK — SWD clock |
| Chân 46 | VDD — Digital supply |
| Chân 47 | VSSD — Digital ground |
| Chân 48 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
CY8C4247AZI-L423T phù hợp cho 6 Áp dụngs: CapSense Touch Button Interface, USB HID Peripheral Controller, Industrial Sensor Hub Node, BLDC / DC Motor Control, LED Lighting Controller, Wearable Health Sensor.
CapSense Touch Button Interface
The CY8C4247AZI-L423T's integrated CapSense peripheral and 4 on-chip op-amps make it ideal for capacitive touch button panels in appliances and consumer electronics. The CapSense Sigma-Delta (CSD) hardware provides 100x better SNR than software-only implementations, enabling reliable touch through 5 mm plastic overlays. With 128 KB Flash the part can store advanced gesture libraries and noise-filtering firmware while the 12-bit SAR ADC enables adjacent analog sensing channels. Typical BOM is reduced by removing external touch ICs and op-amps.
Được đề xuất
USB HID Peripheral Controller
The CY8C4247AZI-L423T integrates a USB 2.0 Full-Speed device controller plus 48 MHz Cortex-M0 core capable of running USB stacks without external PHY. It is well-suited for USB mice, keyboards, game controllers, and HID-class sensor peripherals. The 32 DMA channels keep USB throughput off the CPU, and the 16 KB SRAM holds HID report buffers plus CapSense firmware. Drop-in compatibility within the PSoC 4200L family simplifies product SKU management.
Được đề xuất
Industrial Sensor Hub Node
For industrial 4-20 mA loop-powered or 24 V sensor conditioning nodes, the CY8C4247AZI-L423T's 1.71-5.5 V supply range tolerates wide input rails and its 12-bit SAR ADC samples thermocouple, RTD, or strain-gauge signals at up to 1 Msps. The 4 on-chip op-amps implement instrumentation front-ends without external components. Industrial temperature grade (-40C to +85C) supports factory-floor deployment. Integrated CapSense enables front-panel UI without mechanical buttons.
Được đề xuất
BLDC / DC Motor Control
The CY8C4247AZI-L423T's 4 TCPWM blocks and 32 DMA channels enable sensorless BLDC or brushed DC motor commutation in small appliances, fans, and pumps. The 12-bit ADC samples back-EMF at precise timing intervals, and the programmable UDBs can implement hardware commutation tables. The wide operating voltage and integrated op-amps handle FET gate drive feedback loops. The 48 MHz Cortex-M0 closes FOC loops at sufficient rate for sub-100 W motors.
Được đề xuất
LED Lighting Controller
Smart LED drivers and architectural lighting controllers benefit from the CY8C4247AZI-L423T's 12-bit IDAC channels for analog dimming and TCPWM blocks for high-resolution PWM dimming. CapSense enables touch dimmers without mechanical sliders. The 128 KB Flash supports DALI, DMX, or BLE Mesh stacks (via external radio). The wide supply and small 48-TQFP package suit retrofit and slim-form-factor luminaires.
Được đề xuất
Wearable Health Sensor
Wearable heart-rate, SpO2, and motion-tracking devices benefit from the CY8C4247AZI-L423T's low-power Sleep modes, integrated 12-bit ADC for PPG sensor readout, and compact 48-TQFP footprint. The Cortex-M0 + 32 DMA channels keeps CPU wake time minimal while the 128 KB Flash holds algorithm libraries for fitness metrics. The 2.4-5.5 V operating range accommodates single-cell Li-ion directly via internal LDO.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho CY8C4247AZI-L423T — 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 | CY8C4247AZI-L423 | CY8C4246AZI-M445 | CY8C4245AZI-L423 | CY8C4248AZI-L423 |
|---|---|---|---|---|---|
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Flash | 128 KB | 128 KB | 64 KB | 64 KB | 256 KB |
| SRAM | 16 KB | 16 KB | 8 KB | 8 KB | 32 KB |
| CPU Core | Cortex-M0 | Cortex-M0 | Cortex-M0 | Cortex-M0 | Cortex-M0 |
| Max Clock | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| DMA Channels | 32 | 32 | 16 | 16 | 32 |
| ADC | 12-bit SAR 1 Msps | 12-bit SAR 1 Msps | 12-bit SAR 1 Msps | 12-bit SAR 1 Msps | 12-bit SAR 1 Msps |
| Operating Voltage | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V | 1.71 V to 5.5 V |
| Price (qty 1, USD) | 5.12 | 4.95 | 4.20 | 4.10 | 5.85 |
Bảo phân biệt quan trọng
- Programmable analog fabric (UABs and op-amps) integrated on-chip (vsCY8C4246AZI-M445)
- Higher DMA channel count than lower-tier siblings (vsCY8C4245AZI-L423)
- Tape-and-reel packaging for SMT production (vsCY8C4247AZI-L423)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor within 3 mm of every VDD pin (pins 9, 46) and a single 1 uF bulk cap adjacent to the VDDA pin (pin 10). Connect VSSD and VSSA to a unified ground plane with short, direct vias. Add a 4.7 uF capacitor on VUSB (pin 41) to meet USB 2.0 Full-Sedge bulk requirements. The 48-TQFP package requires no special thermal management given the part's low power consumption under 100 mW.
When using CapSense, route the sensor traces with a minimum 0.5 mm clearance to adjacent traces, avoid ground plane flooding under the sensor pad, and add a guard ring around the sensor driven by a GPIO shadow. Without these layout practices, touch SNR drops by 3-5x and false triggers occur. The XRES pin (pin 43) must have a 1 kohm pull-up to VDD if external reset is not driven.
For battery-powered designs, enable Deep Sleep mode when CPU is idle to reduce current to under 2 uA typical. The PSoC 4200L family supports multiple low-power modes (Active, Sleep, Deep Sleep, Hibernate) controlled by the Power Management API in PSoC Creator. Wake sources include GPIO interrupts, WDT, and RTC alarms. Estimated: at 3.0 V VDD and CapSense scanning every 100 ms, average current consumption is approximately 15-25 uA.
The SWD interface (SWDIO/SWDCLK on pins 44/45) needs 50 kohm pull-ups on each line for reliable programming with PSoC Creator or ModusToolbox. Keep SWD trace length under 100 mm and away from switching signals. For production programming, route SWD to a 2x5 1.27 mm header or test pad pattern. The USB D+/D- traces (pins 39/40) must be 90-ohm differential, length-matched within 2 mm.
Thông tin tuân thủ
RoHS and REACH compliant per Infineon product page. Not AEC-Q100 qualified - select automotive-grade PSoC variants for vehicle applications. Halogen-free per JEDEC JS709.
