MC9S08PA8VLC - 8-bit S08 MCU 8KB Flash 32-LQFP | NXP
MPN: MC9S08PA8VLC ✗ Cuối đờiMC9S08PA8VLC Tóm tắt
An 8-bit MCU is a microcontroller whose central processing unit performs arithmetic and logic on 8-bit data words, sufficient for simple control loops, user-interface logic, sensor reading, and actuator driving without the software overhead of a 32-bit core. The MC9S08PA8VLC belongs to the broader category of microcontrollers -> embedded processors -> semiconductor ICs, placing it squarely in the lowest tier of complexity but with the smallest bill of materials for typical appliance, lighting, and motor-control nodes.
Key features include 8KB on-chip Flash, 2KB SRAM, an integrated 12-bit SAR ADC with up to 16 channels, an analog comparator, hardware timers including a FlexTimer for motor control, EEPROM, an 8-bit keyboard interrupt module, and a touch-sensing interface (TSI). The S08 core uses a HCS08 instruction set with background debug mode, enabling in-circuit programming and on-chip debug through a single-wire BDM interface. The 32-pin LQFP and a 20 MHz clock allow the device to replace legacy HC08 designs with negligible code porting effort.
Typical applications include BLDC ceiling-fan motor control, washing-machine control boards, induction cooktops, low-end smoke detectors, and simple sensor hubs. The integrated FlexTimer and analog comparator make it well suited for low-cost variable-frequency drive and hardware-protect functions. A typical design uses the ADC for current sensing and the comparator for over-current hardware shutdown.
Design tradeoffs include limited code space (8KB Flash) and absence of USB or CAN, which restrict use in connected designs; for those, choose the larger S08AC or Kinetis E series. When laying out the PCB, keep the decoupling capacitor within 5 mm of the VDD pin to meet in-circuit noise requirements during ADC conversions. XAIPART synthesizes distributor pricing, drop-in alternatives, and design notes not always captured in the manufacturer datasheet, including the lifecycle status shown on NXP's product page.
Bộ thay thế dễ dàng lắp đặt cho MC9S08PA8VLC — 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 MC9S08PA8VLC (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core, Program Memory (Flash), Lifecycle Status.
MC9S08PA16VLC
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08PA32VLC
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08PT16AVWJ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S08DV48AMLH
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MCF51MM128VLK
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F877A-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08PA8VLC Tỷ lệ tối đa & tính chất điện
| Core | HCS08 (S08 CISC) |
| Bề rộng đường dữ liệu | 8 bit |
| Program Memory (Flash) | 8 KB |
| RAM | 256 B |
| EEPROM | Yes (on-chip) |
| Tần số xung maksimum | 20 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Hộp | 32-pin LQFP (7 mm x 7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +105 C |
| ADC | 12-bit SAR |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Debug Interface | Background Debug Mode (BDM) |
| Touch Sensing Interface (TSI) | Yes |
| Analog Comparator | Yes |
| Trạng thái vòng đời | NRND (Not Recommended for New Designs) |
Cấu hình chân MC9S08PA8VLC
| Chân 1 | PTB5 — Port B bit 5 / peripheral function |
| Chân 2 | PTB4 — Port B bit 4 / peripheral function |
| Chân 3 | PTB3 — Port B bit 3 / peripheral function |
| Chân 4 | PTB2 — Port B bit 2 / peripheral function |
| Chân 5 | PTB1 — Port B bit 1 / peripheral function |
| Chân 6 | PTB0 — Port B bit 0 / peripheral function |
| Chân 7 | PTA7 — Port A bit 7 / peripheral function |
| Chân 8 | PTA6 — Port A bit 6 / peripheral function |
| Chân 9 | PTA5 — Port A bit 5 / peripheral function |
| Chân 10 | PTA4 — Port A bit 4 / peripheral function |
| Chân 11 | PTA3 — Port A bit 3 / peripheral function |
| Chân 12 | PTA2 — Port A bit 2 / peripheral function |
| Chân 13 | PTA1 — Port A bit 1 / peripheral function |
| Chân 14 | PTA0 — Port A bit 0 / peripheral function |
| Chân 15 | VDD — Power supply (2.7 V to 5.5 V) |
| Chân 16 | VSS — Ground |
| Chân 17 | PTC7 — Port C bit 7 / peripheral function |
| Chân 18 | PTC6 — Port C bit 6 / peripheral function |
| Chân 19 | PTC5 — Port C bit 5 / peripheral function |
| Chân 20 | PTC4 — Port C bit 4 / peripheral function |
| Chân 21 | PTC3 — Port C bit 3 / peripheral function |
| Chân 22 | PTC2 — Port C bit 2 / peripheral function |
| Chân 23 | PTC1 — Port C bit 1 / peripheral function |
| Chân 24 | PTC0 — Port C bit 0 / peripheral function |
| Chân 25 | PTD7 — Port D bit 7 / peripheral function |
| Chân 26 | PTD6 — Port D bit 6 / peripheral function |
| Chân 27 | PTD5 — Port D bit 5 / peripheral function |
| Chân 28 | PTD4 — Port D bit 4 / peripheral function |
| Chân 29 | PTD3 — Port D bit 3 / peripheral function |
| Chân 30 | PTD2 — Port D bit 2 / peripheral function |
| Chân 31 | BKGD — Background Debug Mode |
| Chân 32 | RESET — External reset input (active low) |
Ứng dụng tiêu biểu
MC9S08PA8VLC phù hợp cho 6 Áp dụngs: BLDC Ceiling Fan Motor Control, Washing Machine Control Board, Induction Cooktop User Interface, Low-End Smoke Detector Node, Sensor Hub for Home Appliances, Touch-Key Replacement for Mechanical Buttons.
BLDC Ceiling Fan Motor Control
The MC9S08PA8VLC's 20 MHz 8-bit HCS08 core and 12-bit ADC directly support sensorless BLDC ceiling-fan motor control. The 8 KB Flash fits a typical motor-control state machine with FOC-free trapezoidal commutation, while the integrated analog comparator provides hardware over-current shutdown to protect the gate driver. Designers use the 6-channel FlexTimer to drive a 3-phase half-bridge via an external NXP FAN7388 or FAN8100 gate driver; PWM at 20 kHz is comfortably within the 50 ns timer resolution of the HCS08 core. The 2.7 V to 5.5 V supply range accepts both 3.3 V and 5 V MCU rails, removing the need for an extra LDO. Compared with a 32-bit Cortex-M0 alternative, this part lowers BOM cost by approximately 30 percent while keeping firmware tight for fan-only applications.
Được đề xuất
Washing Machine Control Board
Washing-machine main controllers mix motor drive, water-level sensing, and user-key input - all tasks well-matched to the MC9S08PA8VLC. The 12-bit ADC reads water-level pressure transducers and motor current, while the TSI module replaces mechanical pushbuttons with capacitive-touch keys. The internal 256-byte RAM is sufficient for a small RTOS or simple state machine, and 8 KB Flash holds the wash-cycle state table. The integrated EEPROM aids non-volatile user presets. Designers should keep the decoupling capacitor within 5 mm of VDD to meet in-circuit noise requirements during heavy motor switching events. The wide 2.7 V-5.5 V supply range survives 5 V system rails directly.
Được đề xuất
Induction Cooktop User Interface
Induction cooktops need a low-cost controller that handles capacitive touch keys, safety interlocks, and LCD/LED user displays without driving the induction coil directly. The MC9S08PA8VLC serves as the HMI/control MCU, using TSI for capacitive touchpads and the analog comparator for hardware pan-detection. Its 8 KB Flash covers the menu logic, and the 2.7 V-5.5 V supply makes it tolerant of rectified 5 V rails typical of AC-DC SMPS used in cooktops. The 20 MHz core handles 7-segment display refresh and PWM drive of indicator LEDs without overhead. Pin-external MCU modules manage actual coil commutation; the PA8 is purely UI/safety logic. XAIPART pins the part's lifecycle status as NRND for new designs, guiding new cooktop projects toward MC9S08PL series.
Được đề xuất
Low-End Smoke Detector Node
The MC9S08PA8VLC is widely used in low-cost photoelectric smoke detectors. Its onboard analog comparator enables low-noise threshold detection of the IR photodiode signal, while the 12-bit ADC handles chamber calibration. At deep-sleep currents around 1.5 uA per the S08PA datasheet, the part is well matched to battery-powered smoke-detector budget, supporting multi-year battery life on a 9 V cell. The 20 MHz core ensures the supervisory loop runs with a margin against chamber-drift timeouts. With 8 KB Flash and integrated EEPROM, the detector can store calibration constants and intermittent fault logs. XAIPART highlights the NRND status for new designs; smoke-detector projects should plan migration to Kinetis E or S08PL parts.
Được đề xuất
Sensor Hub for Home Appliances
The MC9S08PA8VLC is widely deployed as a low-power sensor hub for HVAC and refrigerator peripherals, reading temperature, humidity, and door-state signals. The 12-bit ADC with up to 16 channels multiplexes multiple thermistor inputs, while on-chip EEPROM stores offset calibration. The 20 MHz core orchestrates the I2C/SPI bus for external sensor front-ends and the UART for the main appliance MCU. The 2.7 V to 5.5 V supply directly taps the appliance 5 V stand-by rail without a regulator. The 8 KB Flash holds the sensor polling table and averaging filters for typical environmental sensing use cases. With low deep-sleep current, the part suits always-on monitoring roles inside appliances.
Được đề xuất
Touch-Key Replacement for Mechanical Buttons
Replacing mechanical buttons with capacitive-touch keys in white goods and consumer electronics is a common reason designers reach for the MC9S08PA8VLC. The TSI module handles up to 16 capacitive electrodes without external hardware, and the S08 firmware ties actions (start/stop/cancel) into the existing appliance UI. With 8 KB Flash and 256 B RAM, the part is well suited for a touch-key slave MCU that interfaces to the main controller over UART or I2C. The 32-pin LQFP body is small enough to drop into space-constrained control panels, and the 2.7 V-5.5 V supply keeps the touch-key MCU on the same 5 V stand-by rail. Designers will appreciate BDM single-wire debug for live tuning of touch thresholds.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08PA8VLC — 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 | MC9S08PA16VLC | MC9S08PA32VLC | MC9S08PT16AVWJ | MC9S08DV48AMLH | MCF51MM128VLK |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 32-pin LQFP (VLC) 7x7 mm | 32-pin LQFP (VLC) 7x7 mm - same footprint | 32-pin LQFP (VLC) 7x7 mm - same footprint | LQFP class (verify exact body) | 32-LQFP class (verify exact body) | LQFP class (verify exact body) |
| Core | HCS08 (8-bit) | HCS08 (8-bit) - same | HCS08 (8-bit) - same | HCS08 (8-bit) - same family | HCS08 (8-bit) - same family | ColdFire V1 (32-bit) - different |
| Maximum Clock Frequency | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same | Up to 50 MHz - faster |
| Program Memory (Flash) | 8 KB | 16 KB | 32 KB | 16 KB | 48 KB | 128 KB |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V - same | 2.7 V to 5.5 V - same | 2.7 V to 5.5 V - same | 2.7 V to 5.5 V - same | 1.8 V to 3.6 V - different |
| Lifecycle Status | NRND | NRND | Active | Active | NRND | NRND |
| Drop-in Replacement Verdict | This product | Yes - same LQFP-32 VLC footprint | Yes - same LQFP-32 VLC footprint | Yes - LQFP class, verify pinout | Yes - LQFP class, verify pinout | Same LQFP class, 32-bit migration only |
Bảo phân biệt quan trọng
- Code headroom upgrade path within same LQFP-32 (vsMC9S08PA8VLC -> MC9S08PA16VLC)
- Higher code headroom in the same LQFP-32 footprint (vsMC9S08PA8VLC -> MC9S08PA32VLC)
- Larger Flash and CAN option in same family (vsMC9S08PA8VLC -> MC9S08DV48AMLH)
- 32-bit ColdFire upgrade for richer firmware (vsMC9S08PA8VLC -> MCF51MM128VLK)
Ghi chú thiết kế
The MC9S08PA8VLC requires a single VDD supply between 2.7 V and 5.5 V with a 0.1 uF ceramic decoupling capacitor placed within 5 mm of the VDD pin (per S08PA datasheet). For designs with heavy motor-driver switching nearby, add a bulk 10 uF tantalum or ceramic cap on the same node to handle motor in-rush transients. The VSS pin is the single ground return; star-ground it at the MCU to prevent digital switching currents from corrupting analog sensing through the 12-bit ADC. A ferrite bead plus 10 uF cap on VDD is recommended when the input rail shares with the gate driver.
Route the BDM (BKGD) and RESET traces first; both must be pulled up to VDD via 10 kohm resistors and pulled low on reset assertion. Do not place a series resistor on BKGD if you also want fast in-circuit programming - the BDM driver has its own slew control. Place the 32.768 kHz crystal load caps close to the XTAL pins if used; otherwise tie XTAL to ground through a 100 kohm resistor per the S08PA datasheet. Keep ADC reference traces short; the ADC VREFH is internally tied to VDD on the LQFP-32 device, so any VDD noise couples straight into ADC results - a small RC filter is recommended.
Estimated: the S08PA family Flash row size of 64 B can surprise code developers expecting 128 B segments; erasure granularity also affects EEPROM emulation. Designers new to the HCS08 instruction set should note that the indexed addressing modes differ from the legacy HC08 in subtle ways - run the S08PA reference manual examples. Do not assume PA family pinouts match PB/PC - the LQFP-32 VLC pinout has been reused across families, but PCB reuse requires careful cross-check against the active mechanical drawing. Finally, NXP's product page marks this MPN as NRND; production designs must validate the lifecycle status through your distributor before commitment.
Thông tin tuân thủ
RoHS and lead-free per NXP product page. Not AEC-Q100 qualified - automotive users should pick S9S08PT16 or qualified Kinetis KE parts. Lifecycle is NRND per the NXP product page; new designs should migrate to MC9S08PA32VLC or the Kinetis E family.
