MC9S08AC32CFGE - 8-bit S08 MCU 32KB Flash 40MHz LQFP-44 | NXP
N.º de pieza: MC9S08AC32CFGE ✓ Activo| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MC9S08AC32CFGE Descripción general
An 8-bit microcontroller is an integrated circuit that contains a processor core, memory (Flash, RAM), and peripherals on a single chip, executing one byte of data per instruction cycle. Within the system hierarchy, the MC9S08AC32CFGE belongs to the microcontroller class of embedded processors, which sits below application processors but above simple logic ICs. It is part of NXP's (formerly Freescale Semiconductor) S08AC family, the third family in the Flexis series, which links 8-bit S08 and 32-bit ColdFire devices through pin-compatible device duos and a common development environment.
Key features include 32KB of on-chip Flash program memory, a 40MHz HCS08 CPU with 20MHz internal bus operation, a 2.7V to 5.5V single supply voltage range, 38 general-purpose I/O lines, and an enhanced serial communication peripheral set (SCI, SPI, IIC) plus an 8-channel ADC suited to analog sensing tasks.
Technically, the HCS08 core implements the HC08 instruction set with background debug mode (BDM) via a standard 6-pin debug connector, enabling non-intrusive flash programming and real-time debugging without additional target resources. The AC family's enhanced timers support PWM generation for motor control and lighting applications.
Typical applications include industrial control and embedded automation, home appliances, metering, motor control, low-power board designs, and IoT sensor nodes, where the 5V-tolerant operating range and ADC peripherals simplify interface design.
Design consideration: the 2.7V to 5.5V supply range allows direct operation from industrial 5V rails or 3.3V systems, but the 40MHz CPU clock (via internal FLL from a crystal or oscillator source) requires attention to supply decoupling and the RESET pin pull-up per NXP datasheet guidance.
This page synthesizes distributor pricing data, drop-in alternatives within the S08AC family, and practical design notes not consolidated in the manufacturer datasheet.
Alternativas directas para MC9S08AC32CFGE — 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 MC9S08AC32CFGE (mismo factor de forma y huella) — difiere en Package, Number of I/O, RAM Size, RoHS Status, Peripherals.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MC9S08AC32MFGE
✅ Sustitución directa✓ En stock
$5.98 / unidad
Ver hoja de datos →MC9S08AC48MFGE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S08AC60MFGE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S08AC32CFGER
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MC9S08DV128CLF
✅ Sustitución directa✓ En stock
$0.8 / unidad
Ver hoja de datos →MC9S08AC32CFGE Valores máximos y características eléctricas
| Core Processor | S08 (HCS08) |
| Core Size | 8-Bit |
| Frecuencia de reloj máxima | 40 MHz |
| Internal Bus Frequency | 20 MHz |
| Flash Memory Size | 32 KB (32K x 8) |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Number of I/O | 38 |
| Encapsulado | 44-LQFP (10x10 mm) |
| Tipo de montaje | Surface Mount |
| Product Series | S08AC (Flexis series) |
| Program Memory Type | Flash |
| Life Cycle Stage | ACTIVE |
| Estado RoHS | RoHS Compliant |
| Debug Interface | Background Debug Mode (BDM), 6-pin connector |
Guía de configuración de pines de MC9S08AC32CFGE 44-lqfp (10x10 mm)
Configuración de pines para MC9S08AC32CFGE (encapsulado 44-lqfp (10x10 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para MC9S08AC32CFGE.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC9S08AC32CFGE es adecuado para 6 aplicacións: Industrial Control and Automation, Home Appliance Control, Metering and Measurement, Motor Control (Small Drives), Low-Power Embedded Boards, IoT Sensor Nodes.
Industrial Control and Automation
The MC9S08AC32CFGE fits industrial control and embedded automation because its 2.7V to 5.5V supply range connects directly to 5V industrial sensors and actuators without level shifting, while 38 GPIO lines provide abundant digital I/O for relay control, limit switches, and status indication. The 40MHz HCS08 CPU (20MHz bus) executes deterministic 8-bit control loops suitable for sequential machine logic and PID regulation at kilohertz rates. Its 32KB Flash accommodates protocol stacks and state machines, and Background Debug Mode permits field diagnostics. Placed on a 5V rail with 0.1uF decoupling per VDD pin, the MCU offers the noise immunity and 5V logic thresholds expected on factory floors, at the cost of higher power than 3.3V-only MCUs.
Recomendado
Home Appliance Control
In washing machines, cookers, and small appliances, the MC9S08AC32CFGE serves as the main control MCU: its enhanced timers generate PWM for motor speed control and buzzer outputs, while the ADC channels read temperature sensors (NTC) and user potentiometers. The 2.7V to 5.5V supply tolerates poorly regulated transformer-derived rails common in white goods, and the 44-pin LQFP (10x10 mm) footprint provides enough GPIO for a full 7-segment/LED display matrix plus keypad scanning. RoHS compliance supports consumer product regulations. Firmware in the 32KB Flash typically covers wash-cycle state machines and fault diagnostics, and BDM debug access on the 6-pin connector enables rapid development iteration.
Recomendado
Metering and Measurement
The MC9S08AC32CFGE suits utility and panel metering applications: the on-chip ADC digitizes current-transformer and voltage-divider signals, and the 40MHz core performs the averaging and scaling math needed for energy accumulation. The 5V-compatible I/O drives electromechanical counters and communicates via SCI (RS-485 with external transceiver) or IIC to EEPROM for tariff storage. The wide 2.7V to 5.5V operating range survives supply sags on metering boards, and low-leakage GPIO supports battery-backed real-time-clock domains. Because metering firmware is compact, 32KB Flash is typically sufficient, keeping BOM cost down versus the 48KB/60KB family members on the identical footprint.
Recomendado
Motor Control (Small Drives)
For fan, pump, and small brushed/stepper motor drives, the MC9S08AC32CFGE's enhanced timers produce center-aligned PWM with configurable deadtime, and its 20MHz bus allows closed-loop speed regulation at practical sampling rates. The ADC reads backshunt current and potentiometer commands, while SCI supports supervisor communication. Operation at 5V simplifies driving MOSFET gate circuitry through standard drivers, and the deterministic 8-bit core avoids the interrupt-latency variability that can trip over-aggressive software designs. Developers should verify PWM frequency against CPU load in the 32KB program space; when sensorless algorithms grow, the pin-compatible MC9S08AC48/AC60 on the same PCB footprint provides migration headroom without a layout change.
Recomendado
Low-Power Embedded Boards
The MC9S08AC32CFGE fits low-power board designs where 8-bit efficiency beats an application processor: S08 wait and stop modes reduce consumption between tasks, and the wide 2.7V to 5.5V supply accepts lithium or 3-cell battery stacks directly. Typical usage runs the MCU in stop mode with periodic wake from an RTC or pin interrupt to sample sensors via ADC and report over SCI/SPI/IIC. The 38 GPIO lines handle discrete monitoring of door switches, battery levels, and status LEDs. Because the entire system state resides on-chip (32KB Flash plus on-chip RAM), external memory is unnecessary, reducing board area with the compact 10x10mm LQFP and easing EMI compliance at moderate clock rates.
Recomendado
IoT Sensor Nodes
As the local intelligence of an IoT sensor node, the MC9S08AC32CFGE conditions and aggregates sensor data before handing it to a wireless module: the ADC samples analog sensors (temperature, light, humidity via front ends), IIC/SPI link to digital sensors and EEPROM calibration storage, and SCI connects to an external radio transceiver. The 5V-tolerant GPIO simplifies interfacing with legacy industrial sensors, while stop-mode current keeps average draw low in duty-cycled designs. 32KB Flash holds the sensing firmware plus a lightweight message protocol. For nodes destined for outdoor or extended-temperature installations, the pin-compatible MC9S08AC32MFGE variant adds the extended M temperature grade on the same footprint with no firmware changes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC9S08AC32CFGE — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MC9S08AC32MFGE | MC9S08AC48MFGE | MC9S08AC60MFGE | MC9S08DV128CLF |
|---|---|---|---|---|---|
| Package | 44-LQFP (10x10 mm) | 44-LQFP (10x10 mm) - same | 44-LQFP (10x10 mm) - same | 44-LQFP (10x10 mm) - same | 44-LQFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 32 KB | 32 KB | 48 KB | 60 KB | 128 KB |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant |
Diferenciadores clave
- Flexis series 8-bit/32-bit scalability (frente a MC9S08DV128CLF)
- Wider Flash headroom on identical footprint (frente a MC9S08AC32MFGE)
- Extended temperature option at identical die (frente a MC9S08AC32MFGE)
Notas de diseño
Wire the BKGD pin to the standard 6-pin background debug connector recommended in the S08AC family datasheet so a development system can program and debug the MCU directly; NXP also notes a manual external reset can be added by a simple switch pulling the RESET pin low. Decouple every VDD pin with 0.1uF ceramic capacitors placed within 2mm of the pin, plus one bulk 10uF capacitor near the supply entry of the 44-LQFP.
The 2.7V to 5.5V supply range permits direct operation from 5V industrial rails, but brown-out behavior should be enabled and the supply kept within spec during relay/motor switching transients common in appliance and industrial boards. Estimated: a 20MHz bus at full activity typically draws tens of milliamps on S08-class cores - verify exact ICC from the datasheet electrical characteristics table for your battery budget rather than relying on this estimate.
Do not treat all AC-family suffixes as identical: the 'C' and 'M' grades differ in temperature range, and Flash capacity (32/48/60KB) changes the vector table location. When migrating from MC9S08AC32CFGE to MC9S08AC48MFGE or MC9S08AC60MFGE, update linker/memory-map settings and re-verify Flash timing (wait-state) configuration at 40MHz, even though the pinout and package remain identical.
Información de cumplimiento
Distributor specification data lists the MC9S08AC32CFGE as ROHS COMPLIANT (QFNL/LQFP package listing). REACH, lead-free, halogen-free, and conflict-minerals statuses were not stated in the provided data and require confirmation from the NXP product page.
