MC9S08AC16MBE - 8-Bit 40MHz HCS08 MCU 16KB Flash | NXP
Référence : MC9S08AC16MBE ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $8.2 | $8,20 |
| 10 | $7.5 | $75,00 |
| 100 | $6.45 | $645,00 |
| 500 | $5.65 | $2 825,00 |
| 1 000 | $4.9 | $4 900,00 |
MC9S08AC16MBE Présentation
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.
Alternatives de remplacement direct pour MC9S08AC16MBE — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC9S08AC16MBE (même facteur de forme et même empreinte) — différant par RoHS Status, Temperature Grade, ADC, Mounting Type, Number of I/O.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S08AC16CBE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08AC32MBE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08AC8MBE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08AC16MBE
✅ Remplacement direct✓ En stock
$4.9 / unité
Voir la fiche technique →MC9S08AC16MBE Valeurs maximales et caractéristiques électriques
| 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 |
| Tension d'alimentation | 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) |
| Boîtier | 42-pin SPDIP (DIP-42) |
| Type de montage | Through-Hole (THT) |
| Température de fonctionnement | -40C to +85C (industrial) |
| On-chip Debug | Yes (BDC, single-wire) |
| Internal Clock Source | ICS with FLL (32 kHz reference) |
| Statut RoHS | Compliant (lead-free SPDIP) |
| Series | S08AC / Flexis |
Configuration des broches de MC9S08AC16MBE
| Broche 1 | PTE0/TXD1 — GPIO / SCI1 transmit |
| Broche 2 | PTE1/RXD1 — GPIO / SCI1 receive |
| Broche 3 | PTE2 — GPIO |
| Broche 4 | PTE3 — GPIO |
| Broche 5 | VSS — Ground |
| Broche 6 | VDD — Supply voltage |
| Broche 7 | PTG0/KBI0 — GPIO / Keyboard interrupt |
| Broche 8 | PTG1/KBI1 — GPIO / Keyboard interrupt |
| Broche 9 | PTG2/KBI2 — GPIO / Keyboard interrupt |
| Broche 10 | PTG3/KBI3 — GPIO / Keyboard interrupt |
| Broche 11 | BKGD/MS — Background debug / Mode select |
| Broche 12 | RESET — External reset input (active low) |
| Broche 13 | PTF0/TPM1CH0 — GPIO / TPM1 channel 0 |
| Broche 14 | PTF1/TPM1CH1 — GPIO / TPM1 channel 1 |
| Broche 15 | PTF2/TPM1CH2 — GPIO / TPM1 channel 2 |
| Broche 16 | PTF3/TPM1CH3 — GPIO / TPM1 channel 3 |
| Broche 17 | VSS — Ground |
| Broche 18 | VDD — Supply voltage |
| Broche 19 | PTF4/TPM1CH4 — GPIO / TPM1 channel 4 |
| Broche 20 | PTF5/TPM1CH5 — GPIO / TPM1 channel 5 |
| Broche 21 | PTF6 — GPIO |
| Broche 22 | PTF7 — GPIO |
| Broche 23 | PTA0/ADC0 — GPIO / ADC channel 0 |
| Broche 24 | PTA1/ADC1 — GPIO / ADC channel 1 |
| Broche 25 | PTA2/ADC2 — GPIO / ADC channel 2 |
| Broche 26 | PTA3/ADC3 — GPIO / ADC channel 3 |
| Broche 27 | PTA4/ADC4 — GPIO / ADC channel 4 |
| Broche 28 | PTA5/ADC5 — GPIO / ADC channel 5 |
| Broche 29 | PTA6/ADC6 — GPIO / ADC channel 6 |
| Broche 30 | PTA7/ADC7 — GPIO / ADC channel 7 |
| Broche 31 | VREFH — ADC high reference |
| Broche 32 | VREFL — ADC low reference |
| Broche 33 | PTB0/SPSCK1 — GPIO / SPI clock |
| Broche 34 | PTB1/MOSI1 — GPIO / SPI master-out |
| Broche 35 | PTB2/MISO1 — GPIO / SPI master-in |
| Broche 36 | PTB3/SS1 — GPIO / SPI slave select |
| Broche 37 | PTB4/SDA — GPIO / I2C data |
| Broche 38 | PTB5/SCL — GPIO / I2C clock |
| Broche 39 | PTC0/TPM2CH0 — GPIO / TPM2 channel 0 |
| Broche 40 | PTC1/TPM2CH1 — GPIO / TPM2 channel 1 |
| Broche 41 | PTC2/TXD2 — GPIO / SCI2 transmit |
| Broche 42 | PTC3/RXD2 — GPIO / SCI2 receive |
Applications typiques
MC9S08AC16MBE convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08AC16MBE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Pin-compatible Flexis 8-bit/32-bit migration path (vs MC9S08AC16CFGE (LQFP-44 variant))
- Larger Flash density for IEC 60730 safety libraries (vs MC9S08AC8MBE (8 KB Flash))
- Through-hole SPDIP for legacy and rugged assemblies (vs MC9S08AC16CFGE (LQFP-44 SMD))
Notes de conception
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.
Informations de conformité
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.
