MC9S08PL32CLC - 8-Bit 20MHz 32KB Flash MCU | NXP 32-LQFP
MPN: MC9S08PL32CLC ✓ Hoạt độngMC9S08PL32CLC Tóm tắt
An 8-bit microcontroller (MCU) is a small, single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and a set of peripherals such as timers, ADC and communication interfaces on one die. The S08 family sits in the 8-bit MCU hierarchy below 32-bit Cortex-M parts but above simple hardware controllers: S08 -> HCS08 core -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. The S08PL line in particular emphasises 5 V I/O tolerance, integrated EEPROM and strong EFT/ESD performance for harsh environments.
Key features include 4 KB SRAM, a 10-bit ADC with multiple channels, an analog comparator, flexible timers (including TPM and PWT), and a 20 MHz bus clock derived from an internal clock source. The MCU operates from 2.7 V to 5.5 V and supports industrial-grade ambient temperatures. The 32-LQFP footprint exposes up to 28 general-purpose I/O pins and integrates an SCI/UART plus SPI and I2C communication channels.
The S08 architecture uses a von-Neumann bus with an HCS08 enhanced instruction set, including multiply and divide, and a BDM (Background Debug Mode) interface for in-circuit programming and debug. Internal EEPROM emulates data-logging or user-configuration storage without external serial memory, and the 10-bit ADC supports both scan and single conversion modes.
Typical applications include white-goods and small home appliances, low-end motor control (BLDC, PMSM, brushed DC), lighting controls, user-interface boards, and battery-operated 5 V industrial sensors. The 5 V tolerance makes it a clean replacement for legacy 5 V designs that need extra Flash headroom.
When designing, route the VDDA/VSS analog pair separately from the digital supply to preserve ADC accuracy, and follow NXP's S08PL reference manual for layout. The internal EEPROM is rated for a finite endurance; structure writes carefully to avoid premature wear.
This page synthesises distributor pricing, drop-in NXP S08PL/S08PA family alternatives and practical design notes not collected on a single OEM page.
Bộ thay thế dễ dàng lắp đặt cho MC9S08PL32CLC — 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 MC9S08PL32CLC (cùng hình factor và footprint) — khác nhau ở Package, ADC, Analog Comparator, Core, Flash Memory.
MC9S08PL16CLC
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PL8CLC
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PA32VLC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PA16VLC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08AW32CPUE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08PL32CLC Tỷ lệ tối đa & tính chất điện
| Core | HCS08L (S08) |
| Bề rộng đường dữ liệu | 8 bit |
| Tần số xung maksimum | 20 MHz |
| Program Memory Size | 32 KB (32K x 8) Flash |
| RAM Size | 4 KB |
| EEPROM Size | 256 B |
| Supply Voltage Range | 2.7 V to 5.5 V |
| ADC | 10-bit |
| Analog Comparator | Yes (internal) |
| Communication Interfaces | SCI (UART), SPI, I2C |
| Timers | TPM, PWT, RTC |
| I/O Pins | Up to 28 GPIO |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 32-LQFP (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| EFT/ESD Performance | Enhanced (per NXP S08PL family spec) |
Cấu hình chân MC9S08PL32CLC
| Chân 1 | PTC0 — General-purpose I/O / analog input |
| Chân 2 | PTC1 — General-purpose I/O / analog input |
| Chân 3 | PTC2 — General-purpose I/O / analog input |
| Chân 4 | PTC3 — General-purpose I/O / analog input |
| Chân 5 | VSS — Digital ground |
| Chân 6 | VDD — Digital supply 2.7-5.5 V |
| Chân 7 | PTB0 — Port B bit 0 / TPM channel |
| Chân 8 | PTB1 — Port B bit 1 / TPM channel |
| Chân 9 | PTB2 — Port B bit 2 / TPM channel |
| Chân 10 | PTB3 — Port B bit 3 / TPM channel |
| Chân 11 | PTB4 — Port B bit 4 / SPI |
| Chân 12 | PTB5 — Port B bit 5 / SPI |
| Chân 13 | PTB6 — Port B bit 6 / I2C SDA |
| Chân 14 | PTB7 — Port B bit 7 / I2C SCL |
| Chân 15 | PTA0 — Port A bit 0 / TPM |
| Chân 16 | PTA1 — Port A bit 1 / TPM |
| Chân 17 | PTA2 — Port A bit 2 / SCI TX |
| Chân 18 | PTA3 — Port A bit 3 / SCI RX |
| Chân 19 | PTA4 — Port A bit 4 |
| Chân 20 | PTA5 — Port A bit 5 |
| Chân 21 | PTA6 — Port A bit 6 |
| Chân 22 | PTA7 — Port A bit 7 |
| Chân 23 | VDDA — Analog supply |
| Chân 24 | VSSA — Analog ground |
| Chân 25 | PTD0 — Port D bit 0 / comparator |
| Chân 26 | PTD1 — Port D bit 1 / comparator |
| Chân 27 | PTD2 — Port D bit 2 |
| Chân 28 | PTD3 — Port D bit 3 |
| Chân 29 | RESET — Active-low reset input |
| Chân 30 | BKGD — Background debug mode |
| Chân 31 | VSS — Digital ground |
| Chân 32 | VDD — Digital supply |
Ứng dụng tiêu biểu
MC9S08PL32CLC phù hợp cho 6 Áp dụngs: White Goods and Home Appliance Control, Low-End BLDC and Brushed DC Motor Control, Lighting Control and LED Drivers, User Interface Boards with Keypad and LCD, Battery-Powered Industrial Sensors, Consumer Toys and Educational Electronics.
White Goods and Home Appliance Control
The MC9S08PL32CLC is well matched to white-goods control boards (washing machines, dishwashers, refrigerators) thanks to its 5 V native I/O, integrated EEPROM for user settings and 10-bit ADC for sensor readout. The 20 MHz HCS08L core executes appliance state machines with ample headroom for UI handling, while the 32-LQFP footprint exposes enough GPIO for relay triac drivers and keypad scanning. Compared with switching to a 3.3 V Cortex-M0+, the S08PL eliminates level shifters for legacy 5 V triac interfaces and reduces BOM cost.
Được đề xuất
Low-End BLDC and Brushed DC Motor Control
For fans, pumps and small drives the MC9S08PL32CLC provides TPM centre-aligned PWM, an analog comparator for BEMF zero-crossing detection, and a 10-bit ADC for current shunt sampling. The 20 MHz core closes single-shunt sensorless BLDC loops in real time without DSP overhead. The 32-LQFP package supports 6-step or FOC firmware variants and the 5 V I/O domain directly drives gate-driver logic. This is the same architecture used in NXP's reference designs for 24 V appliance motors.
Được đề xuất
Lighting Control and LED Drivers
Dimmable LED controllers and DMX512-compatible lighting nodes benefit from the MC9S08PL32CLC's PWM timer, SCI/UART for DMX and EEPROM for storing calibration constants. With 4 KB RAM the MCU can buffer DMX frames and run software PWM at 8 kHz refresh without flicker. The integrated ADC monitors supply current and temperature for adaptive thermal fold-back, while the 5 V tolerance allows direct connection to commercial lighting bus transceivers.
Được đề xuất
User Interface Boards with Keypad and LCD
Appliance user-interface boards combining keypad scanning, segment LCD driving and buzzer control deploy the MC9S08PL32CLC because its GPIO count, timer-driven segment multiplex and EEPROM storage fit in a single chip. The S08PL supports software-driven LCD charge-pump timing and matrix keypad scanning with interrupt-on-change wakeup. The 32-LQFP keeps board area under 10x10 mm, leaving room for the LCD glass and connectors.
Được đề xuất
Battery-Powered Industrial Sensors
Industrial 4-20 mA loop sensors and 5 V battery monitors use the MC9S08PL32CLC's low-power run modes plus 10-bit ADC for accurate readings. Stop and wait modes drop current to the single-digit microamp range for long-life primary-cell designs, and the on-chip EEPROM retains calibration even when the battery is removed. The 5 V tolerance interfaces directly with 4.5 V industrial transducers without external regulators.
Được đề xuất
Consumer Toys and Educational Electronics
Cost-sensitive consumer toys, robotics kits and STEM learning platforms adopt the MC9S08PL32CLC for its 5 V I/O that drives hobby servos and DC motors directly, and for its generous 32 KB Flash for application code and audio samples. The 32-LQFP hand-solders cleanly on a 0.8 mm pitch, easing prototype rework, while the BDM port allows educators to demonstrate in-circuit debug.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08PL32CLC — 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 | MC9S08PL16CLC | MC9S08PL8CLC | MC9S08PA32VLC | MC9S08PA16VLC | MC9S08AW32CPUE |
|---|---|---|---|---|---|---|
| Package | 32-LQFP (7x7 mm) | 32-LQFP - same | 32-LQFP - same | 32-LQFP - same | 32-LQFP - same | 64-LQFP - different pin count |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS08L @ 20 MHz | HCS08L @ 20 MHz | HCS08L @ 20 MHz | HCS08A @ 20 MHz | HCS08A @ 20 MHz | HCS08AW @ 40 MHz |
| Flash | 32 KB | 16 KB (-50%) | 8 KB (-75%) | 32 KB (same) | 16 KB (-50%) | 32 KB (same) |
| RAM | 4 KB | 1 KB | 1 KB | 4 KB | 2 KB | 2 KB |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 0 B (Flash-emulated) |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| ADC | 10-bit | 10-bit | 10-bit | 12-bit | 12-bit | 10-bit |
| GPIO (max) | 28 | 28 | 28 | 28 | 28 | 56 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +105C | -40C to +105C | -40C to +85C |
Bảo phân biệt quan trọng
- 5 V native I/O with integrated EEPROM (vsSTM8S003F3 (3.3 V))
- Larger Flash than price-tier siblings (vsMC9S08PL16CLC)
- Pin-compatible upgrade path to PA family (vsMC9S08PL8CLC)
Ghi chú thiết kế
Estimated: at VDD=5 V with all peripherals active the S08PL core draws ~10 mA plus GPIO drive; adding decoupling 100 nF X7R at each VDD/VSS pin pair within 3 mm of the package suppresses switching noise. For motor-control boards using the same 5 V rail for gate drivers, place a ferrite bead between the MCU VDD and the noisy half-bridge supply to protect the ADC readings.
Route the VDDA/VSSA pair as a Kelvin connection to the supply, keeping the analog ground island small and tying it to digital ground at a single point near the MCU. Avoid routing high-di/dt signals (PWM outputs, triac drivers) across the analog section to preserve the 10-bit ADC SNR. Leave the BKGD/MS pin accessible with a 2x5 header footprint for production programming.
Do not write the internal EEPROM more frequently than the rated endurance budget (~100k cycles per sector) - structure parameter writes with wear-leveling or buffered commit patterns to extend lifetime. The reset pin has an internal pull-up but external noise can still couple in; add a 100 nF cap to ground and a 10 kohm pull-up for harsh-industrial environments. Watch the S08PL I/O injection current limit - exceeding it on any pin can trigger latch-up.
Estimated: the 32-LQFP has theta-JA around 70 C/W on a 4-layer 1-oz PCB; at 10 mA VDD=5 V the dissipation is ~50 mW, giving <4 C temperature rise. Even at extended industrial ambient 85 C the junction stays well below 125 C, so no heatsink is required. Reduce ambient for closed-enclosure appliance designs where internal self-heating adds another 10-15 C.
Thông tin tuân thủ
RoHS and lead-free per NXP product page. Not AEC-Q100 qualified; for automotive consider S12/S08 automotive-grade siblings. Enhanced EFT/ESD per NXP S08PL family claim.