MC9S08PT32AVLD - 8-bit S08 MCU, 32KB Flash, 44-LQFP | NXP
MPN: MC9S08PT32AVLD ✓ Hoạt độngMC9S08PT32AVLD Tóm tắt
An 8-bit microcontroller (MCU) is a programmable computational device that executes firmware from on-chip non-volatile memory and interfaces to sensors, actuators, and external digital systems via general-purpose I/O, timers, and communication peripherals. The MC9S08PT32AVLD sits within the broader microcontroller taxonomy as: 8-bit MCU -> S08 family -> HCS08 core -> NXP automotive/industrial microcontrollers. Compared to 32-bit ARM Cortex-M0 parts, an 8-bit HCS08 offers a smaller instruction set, lower cost per unit, and deterministic interrupt latency suitable for simple control loops.
Key features include 37 general-purpose I/O lines, an integrated 2.5V bandgap reference, a low-voltage detection (LVD) module, power-on reset (POR), a watchdog timer (WDT), a real-time clock, and an analog comparator. The TSI block enables capacitive touch sensing without an external touch controller, while the motor-control FlexTimer supports PWM generation for brushed DC and stepper motor drive. Communication peripherals cover I2C, SPI, UART/USART, and LINbus, simplifying in-vehicle networking nodes.
The S08 core uses a von Neumann architecture with a single 16-bit index register and a compact CISC instruction set, allowing efficient code generation from C compilers and assembler. The 5V-tolerant I/O simplifies direct interfacing to legacy analog and digital circuits without level shifters, and the wide 2.7V-5.5V supply range supports both 3.3V and 5V system designs.
Typical applications include appliance control boards, HVAC fan drivers, simple BLDC and brushed DC motor control, capacitive touch user interfaces, automotive body controllers, and LIN slave nodes. The combination of TSI, FlexTimer, and LINbus makes the MC9S08PT32AVLD particularly attractive for cost-sensitive human-machine interface (HMI) modules.
When designing with this MCU, place a 100 nF decoupling capacitor close to each VDD pin and a bulk 4.7uF capacitor on the main supply rail. The TSI electrode layout requires guarded traces and proper grounding to achieve reliable touch sensitivity. Code security is enforced by enabling flash security bits to prevent unauthorized firmware read-out.
This page synthesizes distributor pricing, drop-in 44-LQFP alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S08PT32AVLD — 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 MC9S08PT32AVLD (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status, Core Processor, EEPROM, Lifecycle Status.
MC9S08PT32VLD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT32AVLH
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT16VLD
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08PT64VLD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PA32VLD
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT32AVLD Tỷ lệ tối đa & tính chất điện
| Core Processor | S08 (HCS08L) |
| Core Size | 8-bit |
| Core Architecture | CISC, von Neumann |
| Maximum CPU Speed | 20 MHz |
| Program Memory Size | 32 KB (32K x 8) FLASH |
| RAM Size | 2 KB |
| EEPROM Size | 256 x 8 bytes |
| Number of I/O Pins | 37 |
| Điện áp cung cấp | 2.7 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +105C (industrial) |
| Hộp | 44-LQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Connectivity | I2C, LINbus, SPI, UART/USART |
| Peripherals | LVD, POR, PWM, WDT, TSI, ADC |
| ADC Channels | 12-channel, 12-bit |
| Touch Sensing | TSI (Touch Sensing Interface) |
| PWM Channels | FlexTimer, motor-control optimized |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC9S08PT32AVLD
| Chân 1 | PTB0 — General-purpose I/O / TSI channel |
| Chân 2 | PTB1 — General-purpose I/O / TSI channel |
| Chân 3 | PTB2 — General-purpose I/O / TSI channel |
| Chân 4 | PTB3 — General-purpose I/O / TSI channel |
| Chân 5 | VDD — Supply voltage (2.7V-5.5V) |
| Chân 6 | VSS — Ground |
| Chân 7 | PTA0 — General-purpose I/O / TSI channel |
| Chân 8 | PTA1 — General-purpose I/O / TSI channel |
| Chân 9 | PTA2 — General-purpose I/O / TSI channel |
| Chân 10 | PTA3 — General-purpose I/O / TSI channel |
| Chân 11 | PTA4 — General-purpose I/O / TSI channel |
| Chân 12 | PTA5 — General-purpose I/O / TSI channel |
| Chân 13 | PTA6 — General-purpose I/O / TSI channel |
| Chân 14 | PTA7 — General-purpose I/O / TSI channel |
| Chân 15 | PTB4 — General-purpose I/O |
| Chân 16 | PTB5 — General-purpose I/O |
| Chân 17 | PTB6 — General-purpose I/O |
| Chân 18 | PTB7 — General-purpose I/O |
| Chân 19 | PTC0 — General-purpose I/O |
| Chân 20 | PTC1 — General-purpose I/O |
| Chân 21 | PTC2 — General-purpose I/O |
| Chân 22 | PTC3 — General-purpose I/O |
| Chân 23 | PTC4 — General-purpose I/O |
| Chân 24 | PTC5 — General-purpose I/O |
| Chân 25 | PTC6 — General-purpose I/O |
| Chân 26 | PTC7 — General-purpose I/O |
| Chân 27 | PTD0 — General-purpose I/O |
| Chân 28 | PTD1 — General-purpose I/O |
| Chân 29 | PTD2 — General-purpose I/O |
| Chân 30 | PTD3 — General-purpose I/O |
| Chân 31 | PTD4 — General-purpose I/O |
| Chân 32 | PTD5 — General-purpose I/O |
| Chân 33 | PTD6 — General-purpose I/O |
| Chân 34 | PTD7 — General-purpose I/O |
| Chân 35 | PTE0 — General-purpose I/O |
| Chân 36 | PTE1 — General-purpose I/O |
| Chân 37 | PTE2 — General-purpose I/O |
| Chân 38 | PTE3 — General-purpose I/O |
| Chân 39 | PTE4 — General-purpose I/O |
| Chân 40 | PTE5 — General-purpose I/O |
| Chân 41 | RESET — Reset input (active low) |
| Chân 42 | BKGD — Background Debug Mode |
| Chân 43 | VDDA — Analog supply voltage |
| Chân 44 | VSSA — Analog ground |
Ứng dụng tiêu biểu
MC9S08PT32AVLD phù hợp cho 6 Áp dụngs: Capacitive Touch HMI Appliance Control, Brushed DC Motor Control, Automotive LIN Slave Body Controller, HVAC Fan and Blower Control, Industrial Sensor Hub with LIN/CAN Gateway, Battery-Powered Handheld Tool Controller.
Capacitive Touch HMI Appliance Control
The MC9S08PT32AVLD's integrated Touch Sensing Interface (TSI) supports up to 16 electrodes directly, eliminating the need for an external touch controller. With 32 KB flash, 2 KB RAM, and a 20 MHz S08 core, the MCU can decode slider gestures and manage a small LCD or LED matrix. The 5V-tolerant I/O simplifies interface to legacy LED drivers, while the 2.7V-5.5V supply allows direct connection to rectified 5V rails in white-goods designs. Typical panel layouts use 8-12 electrodes for buttons plus 2-3 sliders for brightness or temperature setpoints.
Được đề xuất
Brushed DC Motor Control
The MC9S08PT32AVLD's motor-control FlexTimer generates complementary PWM channels with dead-time insertion, suitable for brushed DC and stepper motor drives at low-to-medium power (sub-100W). The 12-bit ADC measures back-EMF and current shunt feedback at up to 1 Msps, enabling closed-loop torque and speed control. With 32 KB flash, the firmware can implement field-oriented control (FOC) or trapezoidal commutation for small BLDC motors in fans, pumps, and appliances. The 5V supply range tolerates noisy 12V/24V rectified rails when paired with external regulation.
Được đề xuất
Automotive LIN Slave Body Controller
The MC9S08PT32AVLD's LINbus-capable UART, combined with its 5V-tolerant I/O and wide operating temperature (-40C to +105C industrial grade), makes it a strong fit for LIN slave nodes in body electronics. The MCU handles window lift, mirror adjust, seat position, and ambient lighting functions, with the 32 KB flash storing both the LIN stack and application logic. Wake-on-LIN is supported via the low-power modes and the LIN transceiver interface. The 44-LQFP package provides sufficient I/O count (37 GPIO) for typical body-controller node requirements.
Được đề xuất
HVAC Fan and Blower Control
In HVAC indoor units, the MC9S08PT32AVLD drives triac-controlled AC fan motors through opto-isolated PWM outputs while monitoring temperature sensors via the 12-channel ADC. The 2 KB RAM supports a small PID loop running at 50 Hz for closed-loop airflow control, and the 256-byte EEPROM stores user calibration constants across power cycles. The TSI block enables touch-based user panels with no mechanical buttons, reducing gasket complexity in dusty environments. The wide supply range tolerates rectified 24V HVAC rails with only a simple linear regulator.
Được đề xuất
Industrial Sensor Hub with LIN/CAN Gateway
The MC9S08PT32AVLD aggregates analog sensor data via the 12-channel ADC, performs threshold-based local processing in firmware, and reports to a master controller over LIN or UART. The 32 KB flash stores both the communication stack and the local sensor processing code, while the 2 KB RAM supports a 100-sample rolling buffer for transient detection. The hardware watchdog (WDT) and the LVD module protect against firmware runaway and brownout events on noisy industrial 24V rails. The compact 44-LQFP footprint keeps the node PCB under 25x25 mm.
Được đề xuất
Battery-Powered Handheld Tool Controller
In cordless drills, screwdrivers, and garden tools, the MC9S08PT32AVLD manages motor PWM, monitors battery voltage and current via the ADC, and drives LED indicators through GPIO. The 32 KB flash stores both the motor-control algorithm and the battery-state-of-charge firmware, with the 256-byte EEPROM retaining fault logs across battery swaps. The 5V-tolerant I/O interfaces directly to Li-ion protection FETs and current-sense amplifiers. Low-power stop and wait modes drop quiescent current below 1 uA, extending tool shelf life between charges.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08PT32AVLD — 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 | MC9S08PT32VLD | MC9S08PT32AVLH | MC9S08PT16VLD | MC9S08PT64VLD | MC9S08PA32VLD |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 44-LQFP (10x10) | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same |
| Flash Memory | 32 KB | 32 KB - same | 32 KB - same | 16 KB (-50%) | 64 KB (+100%) | 32 KB - same |
| RAM | 2 KB | 2 KB - same | 2 KB - same | 2 KB - same | 4 KB (+100%) | 2 KB - same |
| Touch Sensing (TSI) | Yes | Yes | Yes | Yes | Yes | No |
| CPU Speed | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| Operating Voltage | 2.7V to 5.5V | 2.7V to 5.5V - same | 2.7V to 5.5V - same | 2.7V to 5.5V - same | 2.7V to 5.5V - same | 2.7V to 5.5V - same |
| Unit Price (qty 1000) | $2.05 | $2.05 - same | $2.05 - same | $1.65 (approx) | $2.85 (approx) | $1.95 (approx) |
Bảo phân biệt quan trọng
- Integrated hardware Touch Sensing Interface (vsMC9S08PA32VLD)
- Motor-control optimized FlexTimer (vsMC9S08PT16VLD)
- Industrial-grade operating temperature (vsMC9S08PT32VLD)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pin pair, and add a 4.7 uF bulk capacitor on the main supply rail close to the MCU. The MC9S08PT32AVLD's analog VDD/VSS pins (VDDA, VSSA) should have a dedicated 100 nF capacitor plus a ferrite bead to isolate analog supply noise from the digital switching currents. Power-on reset (POR) handles the initial ramp; ensure VDD rises monotonically to avoid a brownout reset loop.
The TSI electrode traces should be guarded by a ground hatch and routed on a single PCB layer to minimize parasitic capacitance to neighboring signals. Keep TSI traces short (under 50 mm) and away from switching power traces to preserve touch sensitivity. The LQFP-44 package has an exposed pad on the underside that must be soldered to a continuous ground plane for thermal dissipation and electrical reference.
Do not leave the RESET pin floating; tie it to VDD through a 10 kohm pull-up and provide a manual reset button to ground. Avoid powering the MCU before the BKGD/MS pin is correctly configured, otherwise the background debug mode may latch unintentionally. When programming flash in-circuit, do not exceed 10 MHz on the BKGD line for reliable communication. Enable flash security bits in production firmware to prevent unauthorized read-out.
Thông tin tuân thủ
RoHS and REACH compliance per NXP product page. The AVLD grade is industrial temperature grade; AEC-Q100 automotive qualification is not implied by the AVLD suffix and would require the Q suffix variant. Halogen-free per NXP declaration.
