MC9S08SH8MTG - 8-bit S08 MCU, 8KB Flash, 40MHz | NXP | TSSOP-16 (Tape & Reel)
N.º de pieza: MC9S08SH8MTG ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.12 | $3,12 |
| 10 | $2.74 | $27,40 |
| 100 | $2.18 | $218,00 |
| 500 | $1.82 | $910,00 |
| 1.000 | $1.55 | $1.550,00 |
MC9S08SH8MTG Descripción general
What is an 8-bit microcontroller? An 8-bit MCU is a single-chip computer that processes data in 8-bit chunks and integrates a CPU core, non-volatile program memory (Flash), working memory (RAM), and configurable peripherals on one die. In the broader hierarchy, the S08 family belongs to Freescale/NXP's HCS08 line of low-power, low-pin-count microcontrollers, sitting below 32-bit ARM Cortex-M parts but above legacy HC08/HC05 families in capability and tool-chain maturity.
Key specifications include 8KB (8K x 8) Flash, 512 x 8 RAM, 40MHz maximum bus frequency, 13 GPIO pins, and an operating voltage range from 2.7V to 5.5V. On-chip peripherals include LVD (Low-Voltage Detect), POR (Power-On Reset), PWM, a watchdog timer, an analog comparator, and a 12-channel 10-bit ADC with 2.5 µs conversion time and a built-in temperature sensor.
The HCS08 core executes the HC08 instruction set with an added BGND instruction for background debug mode, supporting up to 32 interrupt/reset sources and providing backward code compatibility with legacy HC08 designs. The architecture pairs a CISC-style register-rich CPU with modern peripherals such as the ACMP module and an SCI for asynchronous serial links.
Typical applications include automotive body controllers (LIN slaves), low-cost sensor interfaces, simple motor control loops (small DC fans, pumps), LED drivers, and white-goods control boards. Its 5V tolerance makes it a fit for harsh industrial environments where 3.3V-only parts would require level shifters.
When designing with this MCU, route the decoupling capacitor (100nF plus 4.7µF bulk) within 5mm of the VDD pin and provide a clean reset circuit. Programming is supported via the standard NXP BDM interface - no SWD - so ensure the BKGD pin is accessible for in-circuit debugging.
This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes that go beyond the manufacturer datasheet to help engineers select, source, and prototype with the MC9S08SH8MTG quickly.
Alternativas directas para MC9S08SH8MTG — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MC9S08SH8MTG (mismo factor de forma y huella) — difiere en RAM Size, ADC, Number of I/O Pins, Package, Peripherals.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC9S08SH4MFK
✅ Sustitución directa✓ En stock
$2.15 / unidad
Ver hoja de datos →MC9S08SE8MTG
✅ Sustitución directa✓ En stock
$1.74 / unidad
Ver hoja de datos →MC9S08AW60CPUE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S08QG8CFFE
✅ Sustitución directa✓ En stock
Consulte el precio
Ver hoja de datos →MC9S08LL36CLK
✅ Sustitución directa✓ En stock
$3.84 / unidad
Ver hoja de datos →MC9S08SH8MTG Valores máximos y características eléctricas
| Core Processor | HCS08 (S08 core, 8-bit CISC) |
| Core Size | 8-bit |
| Maximum CPU Frequency | 40 MHz |
| Program Memory (Flash) | 8 KB (8K x 8) |
| RAM Size | 512 x 8 (512 B) |
| EEPROM Size | Not present (Flash-only) |
| Operating Voltage Range | 2.7 V to 5.5 V |
| Number of I/O Pins | 13 |
| Encapsulado | 16-pin TSSOP (Tape and Reel) |
| Tipo de montaje | Surface Mount |
| Connectivity | I2C, LINbus, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT, ACMP |
| ADC | 12-channel, 10-bit, 2.5 µs conversion |
| Temperature Sensor | Internal (ADC channel) |
| Interrupt Sources | Up to 32 |
| Debug Interface | BDM (Background Debug Mode) |
| Lead-Free / RoHS | Yes (per Mouser listing) |
Configuración de pines de MC9S08SH8MTG
| Pin 1 | PTB5/TCLK/RESET — General I/O / Timer clock / Reset (bidirectional) |
| Pin 2 | PTB4/ACMPO — General I/O / Analog comparator output |
| Pin 3 | VSS — Ground |
| Pin 4 | VDD — Supply voltage (2.7 V - 5.5 V) |
| Pin 5 | PTA5/TPM2CH0/ADP5 — General I/O / PWM channel / ADC channel |
| Pin 6 | PTA4/TPM2CH1/ADP4 — General I/O / PWM channel / ADC channel |
| Pin 7 | PTA3/SDA/ADP3 — I2C SDA / ADC channel |
| Pin 8 | PTA2/SCL/ADP2 — I2C SCL / ADC channel |
| Pin 9 | PTA1/TXD/ADP1 — SCI TXD / ADC channel |
| Pin 10 | PTA0/RXD/ADP0 — SCI RXD / ADC channel |
| Pin 11 | PTA6/TPM1CH2/ACMP- — General I/O / PWM / Analog comparator in- |
| Pin 12 | PTA7/TPM1CH3/ACMP+ — General I/O / PWM / Analog comparator in+ |
| Pin 13 | BKGD/MS — Background Debug Mode / Mode Select |
| Pin 14 | PTB3/SPSCK — General I/O / SPI clock |
| Pin 15 | PTB2/MOSI — General I/O / SPI MOSI |
| Pin 16 | PTB1/MISO — General I/O / SPI MISO |
Aplicaciones típicas
MC9S08SH8MTG es adecuado para 6 aplicacións: Automotive LIN Slave Nodes, Industrial Sensor Interface Boards, Small DC Motor and Fan Controllers, White-Goods Control Boards, LED Lighting and Signage Drivers, Low-Cost IoT Sensor Edge Nodes.
Automotive LIN Slave Nodes
The MC9S08SH8MTG's LINbus-capable SCI module and 5 V-tolerant I/O make it a strong fit for automotive body-electronics slave nodes such as door modules, mirror controllers, and seat-position sensors. Its 40 MHz HCS08 core handles the LIN 1.3/2.0 protocol stack with automatic baud-rate detection in software, while the 12-channel 10-bit ADC reads position and temperature sensors at the 2.5 µs conversion rate. The 8 KB Flash holds the LIN slave firmware plus a small bootloader, and the 512 B RAM is sufficient for the LIN frame buffer and PID table. Compared with 3.3 V-only parts, the 2.7-5.5 V supply range tolerates the load-dump transients seen on 12 V automotive buses after the external regulator.
Recomendado
Industrial Sensor Interface Boards
The MC9S08SH8MTG's 13 GPIO pins and 12-channel 10-bit ADC provide ample channel count for multi-sensor interface boards in industrial control cabinets. Its 5 V I/O tolerance interfaces directly to legacy 5 V Hall-effect sensors and 4-20 mA loop converters without external level shifters, while the on-chip analog comparator enables threshold-based fault detection at sub-microsecond latency. The HCS08's CISC instruction set executes bit-banging SPI or I2C transactions for sensor ICs that need configuration handshakes. At 40 MHz, polling loops for 4-8 sensors run with comfortable margin. The TSSOP-16 footprint also fits on 50 x 50 mm sensor PCBs where smaller QFN parts would complicate hand-rework.
Recomendado
Small DC Motor and Fan Controllers
The MC9S08SH8MTG's PWM module drives small DC motors and fans used in HVAC, server fans, and white-goods appliances at switching frequencies up to 20 kHz. Its 40 MHz core generates the PWM timing without software overhead, and the 12-channel 10-bit ADC reads back tachometer pulses from the fan or current-sense amplifier for closed-loop control. The 5 V supply range handles 24 V industrial bus rails after a small linear regulator, while internal LVD/POR functions protect against brown-out conditions during motor stall events. HCS08 BGND-mode debug lets engineers step through commutation code without disturbing real-time PWM edges.
Recomendado
White-Goods Control Boards
Washing machines, dishwashers, and microwave ovens use 8-bit MCUs like the MC9S08SH8MTG for user-interface control, sensor reading, and relay/PWM actuator drive. The wide 2.7-5.5 V supply range tolerates the rectified 5 V rail common in these appliances, and the TSSOP-16 package simplifies hand-soldering during service-repair work. The internal temperature sensor enables on-die thermal monitoring for overtemperature shutdown of the appliance's power stage, while the SCI/SPI peripherals drive the display board and EEPROM. With 8 KB Flash, the firmware can include the appliance state machine plus a small diagnostics log.
Recomendado
LED Lighting and Signage Drivers
Architectural LED controllers and digital signage nodes benefit from the MC9S08SH8MTG's PWM channels and 5 V tolerance. The 12-bit PWM granularity (after scaling) lets designers achieve smooth dimming curves across thousands of LEDs, while the ADC monitors string current via a sense resistor for closed-loop brightness control. The I2C and SPI peripherals connect to constant-current LED driver ICs such as TLC5941 or WS2801 for chained pixel control. At 40 MHz, refresh rates above 60 Hz are easily achievable with software-driven WS2812-style protocols, while the small TSSOP-16 footprint fits inside slim LED housings.
Recomendado
Low-Cost IoT Sensor Edge Nodes
Battery-powered IoT edge sensors in agriculture, asset tracking, and smart-home deployments use the MC9S08SH8MTG to read sensors and transmit data over UART-attached radios or LIN-substitute links. Although the SH8 does not have an integrated radio, its low active current and small TSSOP package pair well with external sub-GHz transceivers such as the NXP OL2381 or TI CC1101. The 12-channel ADC samples soil-moisture, temperature, and battery-voltage sensors in a duty-cycled sleep/wake loop, and the HCS08 BGND-mode debug allows field firmware updates through a single-wire BDM interface. With 8 KB Flash, the device holds a sensor-fusion plus radio-stack library for basic edge nodes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S08SH8MTG — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC9S08SH8MTG | MC9S08SH4MFK | MC9S08SE8MTG | MC9S08AW60CPUE | MC9S08QG8CFFE | MC9S08LL36CLK |
|---|---|---|---|---|---|---|---|
| Package | 16-TSSOP | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same | 16-TSSOP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core / Family | HCS08 / S08SH | HCS08 / S08SH | HCS08 / S08SH | HCS08 / S08SE | HCS08 / S08AW | HCS08 / S08QG | HCS08 / S08LL |
| Flash | 8 KB | 8 KB | 4 KB | 8 KB | 60 KB | 8 KB | 36 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 2 KB | 512 B | 4 KB |
| Max CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 20 MHz | 40 MHz |
| LINbus Support | Yes | Yes | Yes | No | Yes (CAN + LIN) | No | No |
| ADC Channels x Resolution | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 8 x 10-bit | 16 x 10-bit | 8 x 10-bit | 16 x 10-bit |
| Operating Voltage | 2.7 V - 5.5 V | 2.7 V - 5.5 V | 2.7 V - 5.5 V | 2.7 V - 5.5 V | 2.7 V - 5.5 V | 1.8 V - 3.6 V | 2.7 V - 5.5 V |
| Unit Price (1000-pc reel) | USD 1.55 | USD 1.55 - 1.65 | USD 1.30 - 1.45 | USD 1.50 - 1.70 | USD 4.20 - 4.80 | USD 1.10 - 1.30 | USD 2.40 - 2.80 |
Diferenciadores clave
- Tape-and-reel packaging for high-volume SMT lines (frente a MC9S08SH8MTG)
- Higher Flash density vs the SH4 sub-family (frente a MC9S08SH4MFK)
- Native LINbus hardware vs QG8 sub-family (frente a MC9S08QG8CFFE)
Notas de diseño
Place a 100 nF X7R ceramic decoupling capacitor within 5 mm of the VDD pin and a 4.7 µF bulk capacitor on the same rail. The MC9S08SH8MTG includes internal POR and LVD, so an external reset IC is not required for most designs. Verify the bulk cap ESR stays below 50 mΩ at 1 MHz to handle 40 MHz core current transients without ripple-induced ADC errors.
Keep the BKGD/MS pin accessible for in-circuit programming - route it to a 2-pin header or test pad and avoid placing any pull-up other than the internal weak pull-up. The TSSOP-16 footprint's exposed leads simplify hand-soldering for prototypes, but production boards should use 0.65 mm pitch pads with NSMD land pattern for best reflow yield.
Do not leave unused ADC channels floating - tie them to VREF or ground to prevent shoot-through current in the ADC mux. When migrating from the MC9S08QG4CFFE to the SH8MTGR, re-check the SCI baud-rate register because the bus clock dividers differ between the two sub-families. Estimating: 1 UART bit at 9600 baud and 40 MHz bus is 4167 cycles, leaving adequate margin for software polling without hardware oversampling.
For SPI runs longer than 50 mm, add a 33 Ω series resistor at the MC9S08SH8MTG output pin to dampen ringing on the SPI clock line. The HCS08 core drives GPIO at moderate edge rates; without series termination, reflections on long buses can corrupt SPI frame timing. Keep the ADC analog traces short and away from PWM outputs to preserve 10-bit accuracy.
Información de cumplimiento
RoHS and lead-free per Mouser/DigiKey product listings; REACH compliance declared on NXP product page. Part is not AEC-Q100 qualified - for automotive safety-critical applications consult NXP's S08 automotive-grade family.
