MC9S08AC16MBE - 8-Bit 40MHz HCS08 MCU 16KB Flash | NXP
MPN: MC9S08AC16MBE ✓ Hoạt độngMC9S08AC16MBE Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data memory, peripherals, and I/O. The HCS08 is an 8-bit CISC core, second-generation of the HC08 family, with a BME (bit manipulation engine), BDC (background debug controller), and on-chip ICE (in-circuit emulation) support. The MC9S08AC16 belongs to the broader S08AC sub-family in the S08 (Scalable 8-bit) product hierarchy of NXP/Freescale microcontrollers. It is engineered for cost-sensitive embedded applications requiring deterministic low-power behaviour and small form-factor through-hole assembly.
Key features include 16 KB Flash, 1 KB RAM, 38 general-purpose I/O pins, an internal 8-channel 10-bit ADC, two SCI (UART) modules, one SPI module, one I2C module, two TPM (Timer/PWM) modules with up to 6 channels, an internal clock source (ICS) with FLL, and a low-power STOP/WAIT modes. The supply voltage operates over 2.7 V to 5.5 V. The device also features an on-chip voltage regulator and brown-out detection for robust operation.
The HCS08 core uses a von Neumann architecture with a single linear 16-bit address space shared between code and data. Flash is in-lipage mode and self-timed; in-application programming is supported through a ROM-resident Flash routine. The integrated ICS module with FLL provides a low-jitter 20 MHz bus clock from a 32 kHz reference or external crystal, eliminating the cost of an external oscillator in many designs.
Typical applications include industrial control modules, home appliances, motor control (small BLDC/PMSM drivers), HVAC fan controllers, smart meters, low-end point-of-sale terminals, sensor hubs, and legacy industrial replacements. The DIP-42 footprint makes it especially suited for prototyping, breadboards, and through-hole production assemblies.
When designing with this device, ensure decoupling of VDD/VSS pairs near each supply pin with a 100 nF ceramic capacitor. Use a 10 uF bulk capacitor near the MCU. Configure the SOPT1 register to enable the internal pull-ups on RESET and BKGD pins to avoid false resets during power-up. For STOP mode wake-up, ensure the RTC or external interrupt source is properly configured.
This page synthesises distributor pricing, drop-in compatible alternatives, and practical design notes not found in the bare manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MC9S08AC16MBE — 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 MC9S08AC16MBE (cùng hình factor và footprint) — khác nhau ở RoHS Status, Temperature Grade, ADC, Mounting Type, Number of I/O.
MC9S08AC16CBE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08AC32MBE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08AC8MBE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S08AC16MBE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC9S08AC16MBE Tỷ lệ tối đa & tính chất điện
| Core | HCS08 (8-bit CISC) |
| CPU Clock Speed | 40 MHz (20 MHz internal bus) |
| Program Memory (Flash) | 16 KB (16K x 8) |
| RAM | 1 KB |
| Điện áp cung cấp | 2.7 V to 5.5 V |
| I/O Pins | 38 |
| ADC | 10-bit, 8-channel |
| Communication Interfaces | 2x SCI (UART), 1x SPI, 1x I2C |
| Timers/PWM | 2x TPM (up to 6 channels) |
| Hộp | 42-pin SPDIP (DIP-42) |
| Kiểu lắp đặt | Through-Hole (THT) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| On-chip Debug | Yes (BDC, single-wire) |
| Internal Clock Source | ICS with FLL (32 kHz reference) |
| Trạng thái RoHS | Compliant (lead-free SPDIP) |
| Series | S08AC / Flexis |
Cấu hình chân MC9S08AC16MBE
| Chân 1 | PTE0/TXD1 — GPIO / SCI1 transmit |
| Chân 2 | PTE1/RXD1 — GPIO / SCI1 receive |
| Chân 3 | PTE2 — GPIO |
| Chân 4 | PTE3 — GPIO |
| Chân 5 | VSS — Ground |
| Chân 6 | VDD — Supply voltage |
| Chân 7 | PTG0/KBI0 — GPIO / Keyboard interrupt |
| Chân 8 | PTG1/KBI1 — GPIO / Keyboard interrupt |
| Chân 9 | PTG2/KBI2 — GPIO / Keyboard interrupt |
| Chân 10 | PTG3/KBI3 — GPIO / Keyboard interrupt |
| Chân 11 | BKGD/MS — Background debug / Mode select |
| Chân 12 | RESET — External reset input (active low) |
| Chân 13 | PTF0/TPM1CH0 — GPIO / TPM1 channel 0 |
| Chân 14 | PTF1/TPM1CH1 — GPIO / TPM1 channel 1 |
| Chân 15 | PTF2/TPM1CH2 — GPIO / TPM1 channel 2 |
| Chân 16 | PTF3/TPM1CH3 — GPIO / TPM1 channel 3 |
| Chân 17 | VSS — Ground |
| Chân 18 | VDD — Supply voltage |
| Chân 19 | PTF4/TPM1CH4 — GPIO / TPM1 channel 4 |
| Chân 20 | PTF5/TPM1CH5 — GPIO / TPM1 channel 5 |
| Chân 21 | PTF6 — GPIO |
| Chân 22 | PTF7 — GPIO |
| Chân 23 | PTA0/ADC0 — GPIO / ADC channel 0 |
| Chân 24 | PTA1/ADC1 — GPIO / ADC channel 1 |
| Chân 25 | PTA2/ADC2 — GPIO / ADC channel 2 |
| Chân 26 | PTA3/ADC3 — GPIO / ADC channel 3 |
| Chân 27 | PTA4/ADC4 — GPIO / ADC channel 4 |
| Chân 28 | PTA5/ADC5 — GPIO / ADC channel 5 |
| Chân 29 | PTA6/ADC6 — GPIO / ADC channel 6 |
| Chân 30 | PTA7/ADC7 — GPIO / ADC channel 7 |
| Chân 31 | VREFH — ADC high reference |
| Chân 32 | VREFL — ADC low reference |
| Chân 33 | PTB0/SPSCK1 — GPIO / SPI clock |
| Chân 34 | PTB1/MOSI1 — GPIO / SPI master-out |
| Chân 35 | PTB2/MISO1 — GPIO / SPI master-in |
| Chân 36 | PTB3/SS1 — GPIO / SPI slave select |
| Chân 37 | PTB4/SDA — GPIO / I2C data |
| Chân 38 | PTB5/SCL — GPIO / I2C clock |
| Chân 39 | PTC0/TPM2CH0 — GPIO / TPM2 channel 0 |
| Chân 40 | PTC1/TPM2CH1 — GPIO / TPM2 channel 1 |
| Chân 41 | PTC2/TXD2 — GPIO / SCI2 transmit |
| Chân 42 | PTC3/RXD2 — GPIO / SCI2 receive |
Ứng dụng tiêu biểu
MC9S08AC16MBE phù hợp cho 6 Áp dụngs: Industrial Control Modules, Home Appliance Control, Small Motor Control (BLDC / Stepper), HVAC Fan and Blower Controllers, Smart Meter and Energy Monitor, Legacy Industrial Replacement / Migration.
Industrial Control Modules
The MC9S08AC16MBE fits industrial control modules such as relay drivers, sensor signal conditioners, and discrete logic replacements. Its 38 GPIO pins and 2.7 V to 5.5 V supply allow direct interface to 24 V industrial logic via external optocouplers and 5 V sensor arrays. The two SCI (UART) modules support RS-232 or RS-485 transceivers for Modbus RTU slaves. The 40 MHz HCS08 core and 1 KB RAM execute control loops with sub-millisecond response, while the 10-bit ADC with 8 channels reads multiple analog sensors for process variables. Industrial-grade operating range -40C to +85C supports factory-floor deployment, and the SPDIP-42 through-hole package simplifies hand-soldered prototypes and ruggedised field assemblies.
Được đề xuất
Home Appliance Control
The MC9S08AC16MBE is widely deployed in white-goods appliance controllers including washing-machine motor boards, dishwasher pumps, and refrigerator compressor drivers. Its two TPM blocks generate up to 6 PWM channels for driving TRIAC-gated AC loads, gate drivers for IGBTs, or brushed-DC motor bridges. The 16 KB Flash accommodates IEC 60730 safety-class-B software libraries, and the 1 KB RAM supports small real-time operating systems. Internal ICS with FLL eliminates the external crystal cost in cost-sensitive appliance BOMs. The DIP-42 footprint is preferred by appliance OEMs for through-hole wave-soldered production lines that remain common in high-volume consumer goods.
Được đề xuất
Small Motor Control (BLDC / Stepper)
The MC9S08AC16MBE delivers effective control for small BLDC and stepper motors up to a few hundred watts. The two TPM modules produce complementary PWM pairs with programmable dead-time insertion, suitable for 3-phase inverter commutation of low-voltage brushless motors. The 10-bit ADC samples shunt-resistor phase currents at 50+ kSps when triggered by the TPM hardware, closing the FOC current loop. The 40 MHz CPU headroom executes field-oriented control (FOC) software on sensorless BLDCs at moderate speeds, while the SCI outputs diagnostic telemetry to a host controller. Industrial -40C to +85C operation allows under-hood automotive auxiliaries and HVAC actuators.
Được đề xuất
HVAC Fan and Blower Controllers
HVAC fan controllers benefit from the MC9S08AC16MBE's combination of PWM-rich timers, ADC sensing, and robust 5 V operation. The TPM channels drive external IGBT or MOSFET gates to commutate 24 VDC or 48 VBLDC blower motors; the 10-bit ADC reads supply voltage, current, and tachometer feedback for closed-loop RPM regulation. The two SCI interfaces expose Modbus or proprietary serial protocols to building-management systems. The internal ICS with FLL provides a stable clock across -40C to +85C, eliminating external oscillator cost. SPDIP-42 packaging simplifies hand-debug and rework during HVAC system prototyping.
Được đề xuất
Smart Meter and Energy Monitor
The MC9S08AC16MBE serves single-phase smart-meter and energy-monitoring designs where 16 KB Flash is sufficient for metering firmware, calibration tables, and a small RTOS. The 10-bit ADC combined with external sigma-delta or shunt front-ends delivers Class 1 energy-metering accuracy when paired with proper signal conditioning. The SCI module drives an optical UART port for in-field meter reading, while the second SCI serves wired M-Bus or DLMS/COSEM communications. Low-power STOP mode with sub-microamp wake-up extends battery-backed memory retention. The SPDIP-42 footprint supports hand-soldered low-volume metering prototypes and field retrofits.
Được đề xuất
Legacy Industrial Replacement / Migration
The MC9S08AC16MBE is a common 8-bit replacement for older HC11 and HC08 designs that must be re-sourced or upgraded without a full PCB rework. Its 42-pin SPDIP footprint, 38 I/O count, and 8-channel 10-bit ADC are dimensionally similar to legacy MC68HC11 parts, allowing drop-in compatibility in many through-hole control boards. The 16 KB Flash supports larger firmware images than HC11's EPROM, and the HCS08 BME module accelerates legacy bit-bang I/O code. NXP offers migration guides to move HC11 projects onto the AC family with minimal peripheral-driver changes, and the on-chip BDC debug avoids the need for an external in-circuit emulator.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC9S08AC16MBE — 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 | MC9S08AC16CBE | MC9S08AC32MBE | MC9S08AC8MBE |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 42-pin SPDIP (DIP-42) | 42-pin SPDIP (DIP-42) - same | 42-pin SPDIP (DIP-42) - same | 42-pin SPDIP (DIP-42) - same |
| Flash Memory | 16 KB | 16 KB | 32 KB (+100%) | 8 KB (-50%) |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| Core / Clock | HCS08 / 40 MHz | HCS08 / 40 MHz | HCS08 / 40 MHz | HCS08 / 40 MHz |
| I/O Pins | 38 | 38 | 38 | 38 |
| 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 |
| ADC | 10-bit, 8-ch | 10-bit, 8-ch | 10-bit, 8-ch | 10-bit, 8-ch |
Bảo phân biệt quan trọng
- Pin-compatible Flexis 8-bit/32-bit migration path (vsMC9S08AC16CFGE (LQFP-44 variant))
- Larger Flash density for IEC 60730 safety libraries (vsMC9S08AC8MBE (8 KB Flash))
- Through-hole SPDIP for legacy and rugged assemblies (vsMC9S08AC16CFGE (LQFP-44 SMD))
Ghi chú thiết kế
Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the supply pins. Add a bulk 10 uF aluminum-polymer or tantalum capacitor at the board entry point. The internal regulator derives 1.8 V core from VDD; supply noise above 50 mV ripple can couple into ADC readings through the VREFH pin. Tie VREFH to VDD and bypass it with a separate 100 nF cap when ADC accuracy better than 8 bits is required.
Always enable the internal pull-up on the BKGD/MS pin (SOPT1 register, BKPWE bit) before going to STOP mode, otherwise the device may wake into an unintended BDC mode and stall. Avoid toggling RESET during Flash programming; the in-application programming routine requires stable VDD within the 2.7 V to 5.5 V window or the Flash write will be aborted and lock the sector.
Route the BKGD trace away from switching nodes and length-match it with the RESET pin to avoid debug glitches. Keep analog ADC traces (PTA0-PTA7) over a continuous ground plane and away from PWM outputs (PTF0-PTF5) by at least 3 mm. Use guard traces around the VREFH/VREFL pins if the design targets ADC accuracy better than +/-2 LSB.
Estimated: the SPDIP-42 package has a typical theta-JA of approximately 60 C/W in still air. At full 40 MHz bus activity with all peripherals toggling, the device dissipates under 50 mW, so the junction rises by only 3 C above ambient. No thermal management is required for typical industrial 25 C environments. For sealed enclosures above 70 C ambient, derate bus frequency or enable STOP mode to reduce self-heating.
Thông tin tuân thủ
RoHS compliant per NXP product page. SPDIP MBE suffix indicates lead-free through-hole. Not AEC-Q100 qualified - this is an industrial-grade MCU operating from -40C to +85C. Choose S08DZ/S08QE automotive-grade variants for AEC-Q100 designs.
