MC9S08SH32MWL - 8-Bit 40MHz S08 MCU 32KB Flash | NXP
Référence : MC9S08SH32MWL ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.5 | $7,50 |
| 10 | $6.75 | $67,50 |
| 100 | $5.9 | $590,00 |
| 500 | $5.2 | $2 600,00 |
| 1 000 | $4.65 | $4 650,00 |
MC9S08SH32MWL Présentation
An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, integrating a CPU, program memory, data memory, and peripherals into one package. MCUs belong to the broader category of microcontrollers -> embedded processors -> integrated circuits -> semiconductors, and sit below more complex 32-bit microprocessors in cost and power. The S08SH family is positioned as a new low-end option for 5V applications, bridging NXP's older HC08 legacy with the more capable S08 family.
Key features include 32KB of Flash program memory, 1KB of RAM, up to 27 general-purpose I/O lines, and a peripheral set comprising an SCI (Serial Communication Interface), SPI, and I2C for wired connectivity. The device integrates a 16-channel, 10-bit ADC, supports up to 32 interrupt/reset sources, and includes a single-wire background debug interface (BDM) plus an on-chip in-circuit emulation (ICE) module for development.
The S08 core employs the HC08 instruction set with an added BGND instruction, providing backward compatibility with legacy Freescale/NXP HC08 code while enabling modern HCS08 features such as the on-chip debug module with two comparators and nine trigger modes. An eight-deep FIFO stores change-of-flow addresses and event-only data during debugging, enabling trace without external hardware.
Typical applications include industrial control nodes, low-end point-of-sale terminals, simple motor control, sensor interfaces, white goods, and battery-powered consumer devices where 5V tolerance and HC08 code reuse are valued. The 5V-wide operating range and integrated analog simplify designs in noisy industrial environments.
Designers should note that the MC9S08SH32MWL has been declared End-of-Life per the NXP product page; long-term designs should evaluate the recommended replacement family. The 28-pin SOIC package is footprint-compatible across the S08SH series, allowing easy migration between the 8KB, 16KB, and 32KB Flash density variants.
Alternatives de remplacement direct pour MC9S08SH32MWL — 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 MC9S08SH32MWL (même facteur de forme et même empreinte) — différant par ADC, Communication Interfaces, Core, Debug Interface, Interrupt Sources.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC9S08SH16CWL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08SH32CWL
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC9S08SH32MWL
✅ Remplacement direct✓ En stock
$4.65 / unité
Voir la fiche technique →MC9RS08KB8CWJ574
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$0.74 / unité
Voir la fiche technique →MC9S08SH4CTJ
✅ Remplacement direct✓ En stock
$1.85 / unité
Voir la fiche technique →MC9S08SH32MWL Valeurs maximales et caractéristiques électriques
| Core | HCS08 (S08) |
| Largeur du bus de données | 8 bit |
| Processor Series | S08SH |
| Fréquence d'horloge maximale | 40 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 1 KB |
| Tension d'alimentation de fonctionnement | 2.7 V to 5.5 V (5 V typical) |
| Number of I/O Pins | 27 (max) |
| ADC | 16-channel, 10-bit resolution |
| Communication Interfaces | SCI (UART), SPI, I2C |
| Interrupt Sources | Up to 32 interrupt/reset sources |
| Debug Interface | Single-wire BDM + on-chip ICE |
| Boîtier | 28-pin SOIC |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Température de fonctionnement | -40C to +125C |
Configuration des broches de MC9S08SH32MWL
| 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 (general I/O) |
| Broche 4 | PTA3 — Port A bit 3 (general I/O) |
| Broche 5 | PTA4 — Port A bit 4 (general I/O) |
| Broche 6 | PTA5 — Port A bit 5 (general I/O / IRQ) |
| Broche 7 | VDD — Positive supply voltage (2.7 V to 5.5 V) |
| Broche 8 | VSS — Ground reference |
| Broche 9 | PTB0 — Port B bit 0 (general I/O / ADC input) |
| Broche 10 | PTB1/ADC — Port B bit 1 / ADC input |
| Broche 11 | PTB2/ADC — Port B bit 2 / ADC input |
| Broche 12 | PTB3/ADC — Port B bit 3 / ADC input |
| Broche 13 | PTB4/ADC — Port B bit 4 / ADC input |
| Broche 14 | PTB5/ADC — Port B bit 5 / ADC input |
| Broche 15 | PTB6/ADC — Port B bit 6 / ADC input |
| Broche 16 | PTB7/ADC — Port B bit 7 / ADC input |
| Broche 17 | PTC0/SDA — Port C bit 0 / I2C SDA |
| Broche 18 | PTC1/SCL — Port C bit 1 / I2C SCL |
| Broche 19 | PTC2/MOSI — Port C bit 2 / SPI MOSI |
| Broche 20 | PTC3/MISO — Port C bit 3 / SPI MISO |
| Broche 21 | PTC4/SPSCK — Port C bit 4 / SPI clock |
| Broche 22 | PTC5/TxD — Port C bit 5 / SCI TxD |
| Broche 23 | PTC6/RxD — Port C bit 6 / SCI RxD |
| Broche 24 | PTC7 — Port C bit 7 (general I/O) |
| Broche 25 | BKGD/MS — Background Debug Mode / Mode Select |
| Broche 26 | RESET — Active-low external reset input |
| Broche 27 | PTA6 — Port A bit 6 (general I/O) |
| Broche 28 | PTA7 — Port A bit 7 (general I/O) |
Applications typiques
MC9S08SH32MWL convient pour 6 applications: Industrial Control Nodes, White Goods and Home Appliances, Battery-Powered Sensor Modules, Automotive Body Electronics, Point-of-Sale Terminal Accessories, Low-End Motor Control.
Industrial Control Nodes
Industrial control nodes leverage the MC9S08SH32MWL's 5V-wide supply tolerance, 32 KB Flash, and integrated 10-bit ADC for sensor acquisition and actuator driving on factory floors. The HCS08 core's 40 MHz bus and SCI/SPI/I2C peripherals handle Modbus-like serial protocols and inter-MCU networking. Single-wire BDM enables low-cost field firmware updates. The 28-SOIC footprint simplifies through-hole-to-SMD migration of legacy HC08 hardware with minimal PCB rework.
Recommandé
White Goods and Home Appliances
White goods (washing machines, dishwashers, ovens, refrigerators) use the MC9S08SH32MWL for control-panel logic, motor driver interfacing, and user-input handling. The 16-channel ADC reads temperature, humidity, and current-sensor inputs while the 27 GPIOs drive LED/LCD indicators and keypads. The 5V-tolerant I/Os connect directly to legacy triac-based driver stages, and the 1 KB RAM is sufficient for state-machine control loops.
Recommandé
Battery-Powered Sensor Modules
Battery-powered sensor modules capitalize on the MC9S08SH32MWL's HCS08 efficiency and 5V-tolerant analog front-end for low-power IoT endpoints. The 40 MHz core executes sensor-fusion or filtering algorithms within the 1 KB RAM while the 16-channel ADC samples environmental data. I2C/SPI simplifies digital-sensor expansion, and the ICE debug module supports firmware iteration under tight energy budgets.
Recommandé
Automotive Body Electronics
While not AEC-Q100-qualified, the MC9S08SH32MWL has historically served in non-safety automotive body applications such as lighting controllers, HVAC blend-door actuators, and accessory modules. The 40 MHz core handles LIN-style serial communication and PWM-driven motor control. The 28-SOIC thermal envelope supports -40C to +125C operation per the NXP datasheet. For new designs, NXP recommends migrating to AEC-Q100-qualified S08 successors.
Recommandé
Point-of-Sale Terminal Accessories
Point-of-sale accessories (barcode scanners, mag-stripe readers, customer displays) rely on the MC9S08SH32MWL for protocol bridging between serial peripherals and host systems. The integrated SCI handles RS-232-style communication, SPI drives displays, and I2C manages keypad scanners. The 32 KB Flash accommodates protocol stacks plus firmware customization without external memory, and the 5V tolerance connects directly to commercial POS interfaces.
Recommandé
Low-End Motor Control
Low-end motor control designs (small DC, stepper, brushless drivers below 100W) use the MC9S08SH32MWL for commutation, current sensing, and fault detection. The 16-channel ADC samples phase currents and back-EMF, while dedicated timers generate PWM waveforms. The 5V I/Os connect to optocoupler-isolated gate drivers and the SCI enables external tuning. The 28-SOIC dissipates adequately for enclosed motor housings with modest copper area.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC9S08SH32MWL — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC9S08SH16CWL | MC9S08SH32CWL | MC9S08SH4CTJ |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 20-SOIC - smaller |
| Core | HCS08 (S08) | HCS08 (S08) | HCS08 (S08) | HCS08 (S08) |
| Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Memory | 32 KB | 16 KB | 32 KB | 4 KB |
| RAM | 1 KB | 1 KB | 1 KB | 0.5 KB |
| ADC | 16-channel, 10-bit | 16-channel, 10-bit | 16-channel, 10-bit | 12-channel, 10-bit |
| Operating 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 |
Principaux différenciateurs
- 32 KB Flash in a 28-SOIC package (vs MC9S08SH16CWL)
- Full 5V supply tolerance across the operating range (vs MC9S08SH4CTJ)
- Backwards-compatible HC08 instruction set (vs S9S08AW32E5MPUE)
Notes de conception
The MC9S08SH32MWL operates from a 2.7 V to 5.5 V supply; bypass VDD (pin 7) with a 100 nF decoupling capacitor placed within 5 mm of the pin, plus a bulk 1-10 uF capacitor on the PCB supply rail. The 5 V tolerance allows direct interface with legacy 5V logic but check absolute-maximum ratings in the datasheet for I/O pin voltages above VDD + 0.3 V to avoid latch-up.
Route the BKGD/MS pin (pin 25) away from high-speed switching traces to avoid noise-induced debug-mode entry. Place a 4.7 kOhm pull-up on RESET (pin 26) per NXP application guidance. Keep the ADC inputs (PTB0-PTB7, pins 9-16) away from digital switching lines and consider a ground guard ring if noise immunity is required.
Because the MC9S08SH32MWL is End-of-Life, verify the latest NXP product page for the recommended replacement family before committing to new designs. Migrating to a pin-compatible SH32CWL sibling is the lowest-risk path within the existing 28-SOIC footprint. Note that the MPN suffix 'MWL' denotes 28-SOIC with specific lead-finish options; verify reel/tube packaging codes when sourcing from distributors.
Informations de conformité
RoHS-compliant per NXP product page. Not AEC-Q100 qualified; the S08SH family targets industrial/commercial use. Lead-free terminations confirmed via the MWL package suffix. Halogen-free status not explicitly stated in provided data.
