NXP Semiconductors MC9S08JM16CLD

Overview

MC9S08JM16CLD from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with USB 2.0 full-speed interface, 16 KB flash, 1 KB RAM, and 256-byte USB RAM. It operates at up to 48 MHz CPU frequency and 24 MHz bus frequency, features a multi-purpose clock generator (MCG) with PLL/FLL, and supports Stop3 mode for ultra-low-power USB suspend operation. It targets embedded USB peripheral control in industrial diagnostics tools.

For engineers reviewing the MC9S08JM16CLD datasheet, MC9S08JM16CLD pinout, MC9S08JM16CLD application, or MC9S08JM16CLD equivalent, key selection criteria include USB transceiver integration, on-chip 3.3 V regulator, 12-bit ADC with temperature sensor, dual SPI/I²C/SCI interfaces, and QFN-48 package compatibility with copper-wire bonding per 98ASA00466D.

Technical Context

The MC9S08JM16CLD implements the S08CPUV2 core with HC08 instruction set extension and BGND debugging support. Its MCG module provides three clock sources - internal reference (trimmed), crystal/resonator, or external clock - and enables dynamic switching between FLL (for low-jitter run mode) and PLL (for high-frequency USB timing).

USB functionality is implemented via the S08USBV1 controller with dedicated 3.3 V regulator, differential transceiver, endpoint 0 plus six configurable endpoints, and hardware FIFO management. The ADC12 module supports 8-channel 12-bit conversion with auto-compare, internal temperature sensing, and operation down to Stop3 mode.

Key Specifications

Pinout & Package

MC9S08JM16CLD is housed in a 48-pin QFN package (exposed pad), compliant with case outline 98ASA00466D (copper-wire bonding revision). Package dimensions: 7 mm × 7 mm × 0.85 mm, 0.5 mm pitch, thermal pad center.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit USB microcontroller applications.

Compared with MC9S08JM60CLD, the MC9S08JM16CLD offers sufficient flash for basic HID/firmware-updater use cases with identical low-power USB behavior; versus S9KEAZ128AMLH, it delivers proven USB peripheral integration with simpler power architecture and smaller QFN-48 footprint - ideal for cost- and space-constrained industrial USB nodes.

Availability

MC9S08JM16CLD is available at Aetrix Electronics and suitable for industrial diagnostic tools, USB HID peripherals, sensor nodes, and embedded firmware updater devices requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08JM16CLD includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's HCS08 and ColdFire portfolios.

The MC9S08JM16CLD belongs to the HCS08 USB microcontroller family, designed specifically for cost-sensitive, space-constrained embedded systems requiring native USB device functionality without external PHY or voltage regulation.

FAQ

What is the maximum operating frequency of the MC9S08JM16CLD CPU core?

The MC9S08JM16CLD CPU core runs at a maximum frequency of 48 MHz, with a corresponding internal bus frequency of 24 MHz. This timing is achieved using the on-chip MCG module in PLL mode, driven by an external crystal or the internal trimmed reference clock. The MC9S08JM16CLD datasheet specifies this as the absolute maximum rated CPU speed under validated voltage and temperature conditions.

Does the MC9S08JM16CLD include an integrated USB transceiver?

Yes, the MC9S08JM16CLD integrates a full-speed USB 2.0 transceiver compliant with USB specification 2.0. It includes differential USBDP/USBDN pins, on-die termination, and automatic line-state detection. The MC9S08JM16CLD also contains a dedicated 3.3 V regulator (VUSB33) to power the transceiver, eliminating the need for an external LDO in most USB-peripheral designs.

What low-power modes does the MC9S08JM16CLD support, and which retain USB functionality?

The MC9S08JM16CLD supports Wait, Stop2, and Stop3 modes. Only Stop3 preserves USB device state - including address, endpoint configuration, and ability to respond to resume signaling - while drawing less than 2 µA. In Stop3, the USB module remains partially active, enabling true USB suspend/resume without host re-enumeration. This behavior is explicitly documented for the MC9S08JM16CLD in its data sheet Rev. 2.

Is the MC9S08JM16CLD pin-compatible with other members of the JM series?

Yes, the MC9S08JM16CLD in the 48-pin QFN package (98ASA00466D) shares identical pinout and electrical characteristics with the MC9S08JM60CLD and MC9S08JM8CLD. All three parts use the same mechanical outline and signal mapping, allowing direct PCB reuse across flash-size variants - a key design flexibility confirmed in the MC9S08JM16 Series Data Sheet.

What debugging interface does the MC9S08JM16CLD provide, and what hardware is required?

The MC9S08JM16CLD uses a single-wire Background Debug (BKGD) interface via the BKGD/MS pin. It requires only one signal plus ground for full in-circuit debugging, programming, and breakpoint control - no JTAG header or additional pins. A standard Freescale/NXP BDM or OpenSDA debug probe (e.g., OSBDM) is sufficient; no external level shifters or buffers are needed for the MC9S08JM16CLD's 3.3 V–compatible BKGD pin.