NXP Semiconductors MC9S08JM16CLC

Overview

MC9S08JM16CLC from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB flash, 1 KB RAM, USB 2.0 full-speed interface, 12-bit ADC, and dual TPM timers - designed for embedded USB-enabled control applications such as industrial sensors and USB HID devices.

For engineers reviewing the MC9S08JM16CLC datasheet, MC9S08JM16CLC pinout, MC9S08JM16CLC application, or MC9S08JM16CLC equivalent, key selection criteria include USB transceiver integration, 48 MHz CPU clock, QFN-48 package compatibility, stop3-mode power management, and on-chip debug support via BKGD/MS.

Technical Context

The MC9S08JM16CLC implements the S08CPUV2 core with HC08 instruction set extension and background debugging system (BDM), supporting single breakpoint plus two additional debug breakpoints in the on-chip ICE module. Its MCG clock generator provides PLL- and FLL-based frequency synthesis with internal reference trimming.

Peripherals include a dedicated USB 2.0 full-speed controller with integrated 3.3 V regulator and transceiver, two SPI modules (8-/16-bit selectable), two SCIs with LIN extensions, I²C up to 100 kbps, and dual 16-bit TPMs with PWM, input capture, and buffered centered-PWM modes - all operating under unified interrupt vectoring with up to 32 sources.

Key Specifications

Pinout & Package

MC9S08JM16CLC is housed in a 48-pin quad flat no-lead (QFN) package with exposed thermal pad (98ASA00466D), compatible with copper-wire interconnect process per Freescale QFN migration addendum.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC9S08JM60CLC and S9KEAZ128AMLH, the MC9S08JM16CLC delivers targeted USB+sensor functionality at minimal footprint and power, avoiding over-provisioned memory or architectural migration complexity - ideal for cost-sensitive, volume USB HID or data-acquisition designs.

Availability

MC9S08JM16CLC is available at Aetrix Electronics and suitable for industrial sensor nodes, USB human interface devices, embedded firmware updaters, and USB-capable industrial controllers requiring stable component supply and long-term lifecycle support.

Supply support for MC9S08JM16CLC 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, formed from the acquisition of Freescale Semiconductor in 2015.

The MC9S08JM16CLC belongs to the HCS08 family - a line of cost-optimized, USB-integrated 8-bit microcontrollers targeting resource-constrained embedded systems where low power, small form factor, and native USB device capability are essential.

FAQ

What is the maximum CPU clock frequency supported by the MC9S08JM16CLC?

The MC9S08JM16CLC supports a maximum CPU clock frequency of 48 MHz, achieved via its multi-purpose clock generator (MCG) with PLL and FLL capabilities. This allows high-speed execution while maintaining compatibility with the 24 MHz internal bus frequency required for peripheral timing. The MC9S08JM16CLC's clock architecture supports crystal, resonator, or external clock inputs, with internal reference trimming for accuracy across voltage and temperature.

Does the MC9S08JM16CLC include an integrated USB transceiver?

Yes, the MC9S08JM16CLC integrates a full-speed USB 2.0 transceiver with dedicated on-chip 3.3 V regulator, eliminating the need for external PHY components. It supports endpoint 0 and up to six additional configurable endpoints, enabling HID, CDC, and custom class implementations. The MC9S08JM16CLC's USB module operates independently of the main CPU clock and retains functionality in stop3 mode when properly configured.

What power-saving modes are available on the MC9S08JM16CLC?

The MC9S08JM16CLC supports Wait mode and two Stop modes: Stop2 and Stop3. Stop3 is the deepest low-power state, retaining RAM and USB RAM contents while disabling the CPU, bus clock, and most peripherals - drawing less than 1 µA typical. Wakeup sources include keyboard interrupt (KBI), analog comparator (ACMP), real-time counter (RTC), and USB resume signaling. The MC9S08JM16CLC's COP watchdog can operate from an independent 1 kHz internal clock during Stop3.

How many general-purpose I/O pins does the MC9S08JM16CLC provide?

The MC9S08JM16CLC provides up to 37 general-purpose I/O pins across Ports A–G, depending on peripheral pin multiplexing. Each port supports software-selectable internal pullups, slew rate control, and drive strength - critical for noise immunity and signal integrity in industrial environments. Pin functions are detailed in Chapter 2 of the MC9S08JM16CLC datasheet, including dedicated USB (USBDP/USBDN), reset (RESET), and debug (BKGD/MS) terminals.

Is the MC9S08JM16CLC pin-compatible with other members of the JM series?

Yes, the MC9S08JM16CLC shares the same 48-pin QFN package (98ASA00466D) and pinout with the MC9S08JM60CLC, enabling direct PCB reuse when upgrading flash capacity. Both devices maintain identical peripheral mappings, power pin locations, and USB interface placement. However, the MC9S08JM16CLC is not pin-compatible with 32-pin or 44-pin variants (e.g., LQFP packages) in the JM series - package-specific mechanical drawings must be verified per ordering code.