MC9S08JM32CLD
MC9S08JM32CLD - 8-Bit 48MHz USB MCU | NXP | LQFP-44
The NXP Semiconductors MC9S08JM32CLD is an 8-bit S08JM microcontroller with a 48 MHz CPU, 32 KB of Flash memory, 2 KB of RAM, and an on-chip USB 2.0 full-speed device controller in a 44-LQFP package. It integrates PWM, ADC, SCI, and SPI interfaces for embedded USB-control, industrial, and consumer designs. The verified product information identifies a 24 MHz internal bus frequency and a 3.3 V/5 V operating supply context.
What is an 8-bit MCU? An 8-bit microcontroller is a compact embedded-processing device whose central processing unit, registers, and instruction set operate primarily on 8-bit data. The MC9S08JM32CLD belongs to the S08 family of Freescale-derived 8-bit MCUs, now supported by NXP Semiconductors. Its USB device support adds a standardized serial interface for firmware updates, data acquisition, human-interface devices, and connected peripheral control.
The main engineering features include a 48 MHz HCS08 CPU, 32 KB Flash organized as 32K x 8, 2 KB RAM, USB 2.0 full-speed device support, and integrated serial peripherals. PWM supports motor, dimming, and waveform-generation tasks; the ADC supports analog measurement; SCI and SPI provide communication paths to sensors, converters, displays, and external memories. The verified distributor records identify the part in a 44-LQFP, 10 x 10 mm package.
Architecturally, the S08JM family combines a compact 8-bit core with USB connectivity and embedded peripherals, making it suitable for cost-sensitive systems that need more than a basic GPIO controller. The 24 MHz internal bus figure is distinct from the advertised 48 MHz CPU frequency and should not be treated as an interchangeable clock specification. Firmware developers should use the NXP S08 development tools and the exact peripheral configuration documented for the selected device variant.
Typical applications include USB-connected data loggers, USB control panels, industrial interface modules, instrument peripherals, low-cost consumer accessories, and USB-enabled sensor nodes. In each case, the MCU consolidates USB communication, control logic, timing, and analog or serial functions into one package, reducing board complexity compared with a separate MCU and USB bridge.
For a new layout, preserve the exact LQFP-44 land pattern, power and decoupling requirements, USB data-routing constraints, programming access, and oscillator configuration from the manufacturer documentation. Verify lifecycle status, supply tolerances, pin multiplexing, and programming-tool support before committing to production because those details were not included in the supplied search extracts.
This page consolidates verified distributor and manufacturer information, including the USB feature set, memory configuration, clock information, package identification, lifecycle indication, and source links. It also distinguishes confirmed specifications from parameters that require the complete NXP datasheet or a design review before production release.
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