MC9S08AW48CFGE - 8-bit HCS08 MCU, 48KB Flash, 40MHz | NXP
Référence : MC9S08AW48CFGE ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.42 | $7,42 |
| 10 | $6.59 | $65,90 |
| 100 | $5.51 | $551,00 |
| 500 | $4.62 | $2 310,00 |
| 1 000 | $4.05 | $4 050,00 |
MC9S08AW48CFGE Présentation
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a set of on-chip peripherals such as timers, communication controllers, and analog modules. Within the semiconductor hierarchy, an 8-bit MCU sits below 32-bit microcontrollers and above discrete logic ICs in complexity, optimized for deterministic control loops, low power consumption, and low bill-of-materials cost. The HCS08 core extends the legacy HC08 instruction set with the BGND instruction for single-wire background debug, enabling in-circuit programming and debug through a single pin.
Key features include 38 I/O ports (per NXP part summary), on-chip peripherals such as PWM, WDT, LVD, POR, plus serial interfaces including SCI, SPI, and I2C for connectivity to sensors, actuators, and external memory. The internal Flash supports in-application reprogramming, and the integrated clock generator with PLL supports the 40 MHz CPU clock from a variety of external crystal or oscillator sources. The 44-LQFP package offers a 0.5 mm pitch and an exposed thermal pad option, suitable for hand-soldering and standard reflow profiles on multilayer PCBs.
The architecture uses a von-Neumann-style unified address space, allowing the CPU and DMA engine to access Flash, RAM, and peripheral registers through a single 16-bit bus. Interrupt handling uses a vectored scheme with programmable priority, and the on-chip debug module supports breakpoints and watchpoints without requiring additional pins beyond the BKGD line. The S08 core retains HC08 source-level compatibility while adding improved branch prediction and a stack pointer accessible from C code, simplifying compiler support.
Typical applications include industrial control modules, home appliance controllers, low-end motor drives, battery-powered sensor nodes, and consumer electronics requiring reliable 8-bit processing with mixed-signal I/O. The combination of Flash memory, robust peripherals, and a wide operating voltage range (2.7 V to 5.5 V) makes this part a flexible workhorse for cost-sensitive designs.
When designing with this MCU, ensure that the BKGD pin is brought out to a test pad or connector for in-circuit programming, and provide adequate decoupling (100 nF plus 4.7 uF bulk) on each VDD pin. Watchdog timer refresh discipline is essential in noisy environments.
This page synthesizes distributor pricing, lifecycle status, drop-in alternatives from the AW/AC family, and practical design notes that go beyond the manufacturer datasheet.
Alternatives de remplacement direct pour MC9S08AW48CFGE — 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 MC9S08AW48CFGE (même facteur de forme et même empreinte) — différant par Package, Debug Interface, Supply Voltage, Core Processor, Family.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S08AW48CFGER
✅ Remplacement direct✓ En stock
$4.05 / unité
Voir la fiche technique →MC9S08AW32CFGE
✅ Remplacement direct✓ En stock
$2.86 / unité
Voir la fiche technique →MC9S08AW60CFGE
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S08AW16CFGE
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →MC9S08AC48CFGE
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08AC60CFGE
✅ Remplacement direct✓ En stock
$3.42 / unité
Voir la fiche technique →MC9S08AW48CFGE Valeurs maximales et caractéristiques électriques
| Core | HCS08 (S08) |
| Core Size | 8-bit |
| CPU Speed | 40 MHz |
| Internal Bus Frequency | 20 MHz |
| Program Memory (Flash) | 48 KB (48K x 8) |
| RAM Size | 2 KB |
| I/O Ports | 38 (per NXP summary); 34 (per distributor listing) |
| Tension d'alimentation | 2.7 V to 5.5 V |
| Boîtier | 44-pin LQFP (10x10 mm, 0.5 mm pitch) |
| Operating Temperature Grade | Industrial |
| Connectivity | I2C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT |
| Instruction Set | HC08 with added BGND instruction |
| Debug Interface | Single-wire background debug mode (BKGD) |
| ROM Type | Flash |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de MC9S08AW48CFGE
| Broche 1 | PTA0/TCLK1 — Port A bit 0 / Timer channel 1 clock input |
| Broche 2 | PTA1/TCLK2 — Port A bit 1 / Timer channel 2 clock input |
| Broche 3 | PTA2 — Port A bit 2 |
| Broche 4 | PTA3 — Port A bit 3 |
| Broche 5 | VDD — Power supply (2.7 V - 5.5 V) |
| Broche 6 | VSS — Ground |
| Broche 7 | PTA4 — Port A bit 4 |
| Broche 8 | PTA5 — Port A bit 5 |
| Broche 9 | PTA6 — Port A bit 6 |
| Broche 10 | PTA7 — Port A bit 7 |
| Broche 11 | PTB0/ADP0 — Port B bit 0 / ADC channel 0 |
| Broche 12 | PTB1/ADP1 — Port B bit 1 / ADC channel 1 |
| Broche 13 | PTB2/ADP2 — Port B bit 2 / ADC channel 2 |
| Broche 14 | PTB3/ADP3 — Port B bit 3 / ADC channel 3 |
| Broche 15 | PTB4/ADP4 — Port B bit 4 / ADC channel 4 |
| Broche 16 | PTB5/ADP5 — Port B bit 5 / ADC channel 5 |
| Broche 17 | PTB6/ADP6 — Port B bit 6 / ADC channel 6 |
| Broche 18 | PTB7/ADP7 — Port B bit 7 / ADC channel 7 |
| Broche 19 | PTC0 — Port C bit 0 |
| Broche 20 | PTC1 — Port C bit 1 |
| Broche 21 | PTC2 — Port C bit 2 |
| Broche 22 | PTC3 — Port C bit 3 |
| Broche 23 | PTC4 — Port C bit 4 |
| Broche 24 | PTC5 — Port C bit 5 |
| Broche 25 | PTC6 — Port C bit 6 |
| Broche 26 | PTC7 — Port C bit 7 |
| Broche 27 | PTD0/SPSCK — Port D bit 0 / SPI clock |
| Broche 28 | PTD1/MOSI — Port D bit 1 / SPI master-out |
| Broche 29 | PTD2/MISO — Port D bit 2 / SPI master-in |
| Broche 30 | PTD3/SS — Port D bit 3 / SPI slave select |
| Broche 31 | PTD4/TxD — Port D bit 4 / SCI transmit |
| Broche 32 | PTD5/RxD — Port D bit 5 / SCI receive |
| Broche 33 | PTD6/SDA — Port D bit 6 / I2C data |
| Broche 34 | PTD7/SCL — Port D bit 7 / I2C clock |
| Broche 35 | BKGD/MS — Background debug / mode select |
| Broche 36 | RESET — External reset input (active low) |
| Broche 37 | XTAL — Crystal oscillator pin |
| Broche 38 | EXTAL — External clock input / crystal pin |
| Broche 39 | VDD — Power supply (2.7 V - 5.5 V) |
| Broche 40 | VSS — Ground |
| Broche 41 | PTE0 — Port E bit 0 |
| Broche 42 | PTE1 — Port E bit 1 |
| Broche 43 | PTE2 — Port E bit 2 |
| Broche 44 | PTE3 — Port E bit 3 |
Applications typiques
MC9S08AW48CFGE convient pour 6 applications: Industrial Control Module, Home Appliance Controller, Battery-Powered Sensor Node, Low-End Motor Drive / BLDC Controller, Consumer Electronics Interface, Automotive Auxiliary Module.
Industrial Control Module
The MC9S08AW48CFGE fits industrial control modules thanks to its 40 MHz HCS08 core, 48 KB Flash, and 2.7-5.5 V supply range covering both 3.3 V and 5 V PLC backplanes. With on-chip SCI, SPI, I2C plus PWM and watchdog, it directly interfaces motor drivers, sensor arrays, and HMI keypads without external glue logic. Industrial temperature grade (-40C to +85C) and integrated LVD/POR protect against brown-outs on noisy 24 V industrial buses. The 44-LQFP footprint simplifies layout on standard 4-layer PCBs used in PLC form factors.
Recommandé
Home Appliance Controller
The MC9S08AW48CFGE is well-suited to washing machines, dishwashers, and microwave ovens where cost-sensitive 8-bit control is required. Its 48 KB Flash accommodates state-machine plus display driver code, while the integrated PWM channels drive motor and heating elements directly. The 2.7-5.5 V supply range supports both rectified-5 V mains designs and 3.3 V battery-backed real-time-clock domains. On-chip watchdog and LVD ensure unattended operation across long appliance lifetimes.
Recommandé
Battery-Powered Sensor Node
The MC9S08AW48CFGE runs directly from 2x AA cells (2.7-3.6 V) with on-chip SCI/SPI/I2C for sensor and wireless module interfacing. While the AW family is not the lowest-power S08 variant, its 40 MHz CPU headroom allows aggressive duty-cycling: wake, sample, transmit, sleep. The integrated LVD warns of cell depletion, and the 48 KB Flash supports ZigBee/BLE stack fragments and application code simultaneously.
Recommandé
Low-End Motor Drive / BLDC Controller
The MC9S08AW48CFGE can drive small BLDC or stepper motors through its on-chip PWM modules while using SCI to communicate with a host controller or HMI. The 40 MHz CPU executes commutation tables and current-control loops at high PWM frequencies, and the 2 KB RAM accommodates small state buffers without external memory. Industrial temperature grade supports under-hood automotive auxiliary loads and outdoor equipment.
Recommandé
Consumer Electronics Interface
The MC9S08AW48CFGE handles user-interface tasks in consumer devices such as remote controls, HVAC thermostats, and small appliances. Its 34-38 I/O pins drive LED indicators, keypads, LCD bias, and buzzer outputs directly. With I2C, the MCU interfaces to digital sensors and EEPROM while SCI/SPI connect to wireless or display modules. The wide voltage tolerance simplifies designs sharing rails with USB-powered chargers.
Recommandé
Automotive Auxiliary Module
The MC9S08AW48CFGE is specified by NXP for both industrial and automotive industry segments, making it viable for non-safety auxiliary modules such as interior lighting, seat controllers, and body electronics where AEC-Q100 Grade 0 is not mandated. Its 5 V tolerance on I/O simplifies integration with legacy 5 V automotive sensor networks. The wide temperature range and on-chip watchdog support under-hood and cabin deployments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08AW48CFGE — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S08AW48CFGER | MC9S08AW32CFGE | MC9S08AW60CFGE | MC9S08AC48CFGE | MC9S08AC60CFGE |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 44-LQFP (10x10 mm) | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same | 44-LQFP (10x10) - same |
| Flash Memory | 48 KB | 48 KB | 32 KB | 60 KB | 48 KB | 60 KB |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| CPU Speed | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| 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 |
| Core Family | AW (HCS08) | AW (HCS08) | AW (HCS08) | AW (HCS08) | AC (HCS08, enhanced low-power) | AC (HCS08, enhanced low-power) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active (successor) | Active (successor) |
Principaux différenciateurs
- 48 KB Flash on proven AW family silicon (vs MC9S08AW32CFGE)
- Wide 2.7-5.5 V supply supports legacy 5 V systems (vs MC9S08AC48CFGE)
- Pin-compatible across AW and AC families (vs MC9S08AW60CFGE)
- Industrial temperature grade included (vs MC9S08AW16CFGE)
Notes de conception
Provide one 100 nF ceramic decoupling capacitor adjacent to each VDD pin (pins 5 and 39) plus one bulk 4.7 uF capacitor within 1 cm of the package. Place the bulk capacitor near the supply entry point. For battery applications, the on-chip LVD can be configured to assert RESET when VDD drops below a programmable threshold (e.g., 2.7 V), preventing Flash corruption during cell depletion.
Route the BKGD/MS pin (pin 35) to a test pad or 2-pin header for in-circuit programming and debug access. Keep the trace short and away from switching nodes. The XTAL (pin 37) and EXTAL (pin 38) traces should be short, symmetric, and guarded by a ground ring; use a crystal that matches the on-chip FLL/PLL configuration. Place CEXTAL/CXTAL load capacitors within 5 mm of the pins.
Do not exceed 5.5 V on any I/O pin; the device is not 5 V tolerant on all pins. Configure unused pins as outputs (to known state) or inputs with the internal pull-up enabled to minimize current consumption. After Flash programming, perform a verify-read to confirm retention; some early AW-family silicon revisions had Flash marginality issues at high temperature.
The SCI, SPI, and I2C pins share Port D with general-purpose I/O; when using these peripherals, ensure firmware does not reconfigure the same pins as GPIO outputs. Add 4.7 kohm pull-ups on SDA (pin 33) and SCL (pin 34) for I2C communication. For SPI at >5 MHz, keep PCB traces under 50 mm and use a ground reference plane for return-current continuity.
Informations de conformité
RoHS and lead-free compliant per NXP product page. AEC-Q100 qualification status not explicitly stated; AW family targets Industrial and Automotive segments per NXP documentation but this specific part suffix is not flagged AEC-Q100.
