MC9S08SH32MWL - 8-Bit 40MHz S08 MCU 32KB Flash | NXP
N.º da peça: MC9S08SH32MWL ✗ Fim de vida| Qtd. | Preço unitário | 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 Visão geral
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.
Alternativas drop-in para MC9S08SH32MWL — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC9S08SH32MWL (mesmo formato e footprint) — diferindo em ADC, Communication Interfaces, Core, Debug Interface, Interrupt Sources.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MC9S08SH16CWL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S08SH32CWL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MC9S08SH32MWL
✅ Drop-In✓ Em estoque
$4.65 / unidade
Ver ficha técnica →MC9RS08KB8CWJ574
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$0.74 / unidade
Ver ficha técnica →MC9S08SH4CTJ
✅ Drop-In✓ Em estoque
$1.85 / unidade
Ver ficha técnica →MC9S08SH32MWL Classificações máximas e características elétricas
| Core | HCS08 (S08) |
| Largura do barramento de dados | 8 bit |
| Processor Series | S08SH |
| Frequência máxima de clock | 40 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 1 KB |
| Tensão de alimentação de operação | 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 |
| Encapsulamento | 28-pin SOIC |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Temperatura de operação | -40C to +125C |
Configuração de pinos do MC9S08SH32MWL
| Pino 1 | PTA0/TCLK1 — Port A bit 0 / Timer channel 1 clock input |
| Pino 2 | PTA1/TCLK2 — Port A bit 1 / Timer channel 2 clock input |
| Pino 3 | PTA2 — Port A bit 2 (general I/O) |
| Pino 4 | PTA3 — Port A bit 3 (general I/O) |
| Pino 5 | PTA4 — Port A bit 4 (general I/O) |
| Pino 6 | PTA5 — Port A bit 5 (general I/O / IRQ) |
| Pino 7 | VDD — Positive supply voltage (2.7 V to 5.5 V) |
| Pino 8 | VSS — Ground reference |
| Pino 9 | PTB0 — Port B bit 0 (general I/O / ADC input) |
| Pino 10 | PTB1/ADC — Port B bit 1 / ADC input |
| Pino 11 | PTB2/ADC — Port B bit 2 / ADC input |
| Pino 12 | PTB3/ADC — Port B bit 3 / ADC input |
| Pino 13 | PTB4/ADC — Port B bit 4 / ADC input |
| Pino 14 | PTB5/ADC — Port B bit 5 / ADC input |
| Pino 15 | PTB6/ADC — Port B bit 6 / ADC input |
| Pino 16 | PTB7/ADC — Port B bit 7 / ADC input |
| Pino 17 | PTC0/SDA — Port C bit 0 / I2C SDA |
| Pino 18 | PTC1/SCL — Port C bit 1 / I2C SCL |
| Pino 19 | PTC2/MOSI — Port C bit 2 / SPI MOSI |
| Pino 20 | PTC3/MISO — Port C bit 3 / SPI MISO |
| Pino 21 | PTC4/SPSCK — Port C bit 4 / SPI clock |
| Pino 22 | PTC5/TxD — Port C bit 5 / SCI TxD |
| Pino 23 | PTC6/RxD — Port C bit 6 / SCI RxD |
| Pino 24 | PTC7 — Port C bit 7 (general I/O) |
| Pino 25 | BKGD/MS — Background Debug Mode / Mode Select |
| Pino 26 | RESET — Active-low external reset input |
| Pino 27 | PTA6 — Port A bit 6 (general I/O) |
| Pino 28 | PTA7 — Port A bit 7 (general I/O) |
Aplicações típicas
MC9S08SH32MWL é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC9S08SH32MWL — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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)
Notas de projeto
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.
Informações de conformidade
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.
