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NXP Semiconductors MC9S08JM32CGT
- Part No.:
- MC9S08JM32CGT
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MC9S08JM32CGT.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,238
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Product details
Overview
MC9S08JM32CGT from NXP (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB flash, 2 KB RAM, and integrated USB 2.0 full-speed device controller, ADC, SPI, I²C, SCI, TPM, and RTC - designed for embedded control in USB-connected industrial sensors and human-interface devices.
For engineers reviewing the MC9S08JM32CGT datasheet, MC9S08JM32CGT pinout, MC9S08JM32CGT application, or MC9S08JM32CGT equivalent, key selection criteria include USB device stack support, 12-bit ADC with temperature sensor, low-power stop3 mode operation, and background debug capability for firmware validation in resource-constrained designs.
Technical Context
The MC9S08JM32CGT implements the HCS08 CPU core running at up to 48 MHz with 24 MHz bus frequency, supporting HC08 instruction set plus BGND for on-chip debugging. Its MCG clock generator provides FLL and PLL modes with internal reference trimming for stable USB timing.
Peripherals include two SCI modules with LIN break support, two SPI modules with hardware match, one 2-channel and one 6-channel 16-bit TPM with edge-aligned and centered PWM, and a dedicated USB transceiver with 3.3-V regulator and USBDP pull-up resistor - all operating under unified power management with Wait, Stop2, and Stop3 modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU, 48-MHz max core frequency, 24-MHz bus clock - enables deterministic real-time control with low latency interrupt response. |
| Memory | 32 KB on-chip flash (block-protected, secure), 2 KB RAM, 256 B USB RAM - sufficient for USB HID firmware + sensor processing without external memory. |
| USB Interface | USB 2.0 full-speed (12 Mbps) device controller with integrated transceiver, 3.3-V regulator, and USBDP pull-up - eliminates need for external PHY or LDO in USB peripheral designs. |
| ADC | 12-channel, 12-bit SAR ADC with automatic compare, internal temperature sensor, and operation in Stop3 mode - supports battery-powered sensor monitoring with wake-on-threshold. |
| Timers | Two TPM modules: one 2-channel, one 6-channel 16-bit timer/PWM - provides flexible input capture, output compare, and buffered centered PWM for motor or lighting control. |
| Package | 44-pin LQFP (7 × 7 mm, 0.8 mm pitch) - compatible with standard surface-mount assembly and offers 32 GPIOs with configurable slew rate, drive strength, and pullups. |
Pinout & Package
MC9S08JM32CGT is housed in a 44-pin low-profile quad flat package (LQFP) with exposed thermal pad, rated for −40°C to 105°C operation. Pin assignments follow Freescale's standardized HCS08 JM-series layout, with dedicated USB, ADC reference, oscillator, reset, and debug pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual-domain supply: VDD powers digital logic; separate VDDAD/VSSAD for analog subsystem ensures clean ADC reference. |
| XTAL/EXTAL | Crystal/resonator interface | Supports 1–24 MHz crystal or ceramic resonator; connects directly to MCG module for precise clock generation required by USB timing. |
| USBDP/USBDN | USB differential data pair | Integrated transceiver drives full-speed USB signaling; USBDP includes internal 1.5-kΩ pull-up resistor for device enumeration. |
| VREFH/VREFL | ADC reference inputs | Accept external 0–VDD reference or internal bandgap; enable ratiometric measurements independent of supply variation. |
| BKGD/MS | Background debug / mode select | Single-pin SWD-style debug interface; supports in-circuit programming and real-time breakpoint debugging without dedicated JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip USB transceiver with regulator | Eliminates external PHY and 3.3-V LDO, reducing BOM count and PCB area in USB HID or CDC device implementations. |
| Stop3 low-power mode with ADC wake | Retains RAM and USB state while drawing <2 µA; ADC can trigger wake on voltage or temperature threshold - ideal for battery-operated sensors. |
| Background debug system (BDM) | Single-wire interface with breakpoint and ICE trace support enables firmware development and field updates without debug header footprint. |
| Configurable GPIO drive strength | Software-selectable 2/4/8 mA drive on output pins allows optimization of EMI and signal integrity for different load conditions. |
| Multi-source interrupt architecture | Supports up to 32 interrupt/reset sources with prioritized vectoring - simplifies real-time response handling across USB, timer, ADC, and communication peripherals. |
Applications
| USB Human Interface Device | Industrial Sensor Node |
|---|---|
Use Scenario: A programmable USB keyboard or barcode scanner requiring local button scanning, LED feedback, and plug-and-play host connection. IC Role / Device Role / Timing Role: Central MCU executing HID report generation, managing USB enumeration, scanning matrix keys via KBI, and driving status LEDs using TPM PWM. Use Value: Integrated USB transceiver and 32 KB flash allow full HID descriptor storage and firmware updates over USB - no external memory or PHY needed. | Use Scenario: A DIN-rail mounted temperature/humidity sensor transmitting calibrated readings via USB-CDC to PLC or SCADA host. IC Role / Device Role / Timing Role: Sensor fusion processor reading analog sensors via 12-bit ADC, compensating with internal temperature sensor, and streaming data over USB virtual COM port. Use Value: ADC operates in Stop3 mode with wake-on-threshold, enabling ultra-low-power periodic sampling (<5 µA average current) while maintaining USB readiness. |
| Embedded USB Firmware Updater | Motor Control Interface Module |
Use Scenario: Field-deployable tool that reprograms legacy controllers via USB, requiring secure flash update and bootloader validation. IC Role / Device Role / Timing Role: Secure bootloader MCU verifying firmware signatures, managing flash block protection, and exposing DFU-compatible USB interface. Use Value: Flash security options (FOPT/NVOPT) and COP watchdog prevent unauthorized code execution; USB endpoint 0 + 6 additional endpoints support custom DFU descriptors. | Use Scenario: Compact actuator driver accepting PWM commands over USB and generating complementary gate-drive signals for BLDC commutation. IC Role / Device Role / Timing Role: Real-time command interpreter converting USB packets into synchronized 6-channel center-aligned PWM outputs via TPM modules. Use Value: Two independent TPMs support simultaneous 3-phase PWM generation with dead-time insertion - eliminating need for external timer ICs or FPGA logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08JM60CLH | 60 KB flash, 4 KB RAM, same peripheral set and pinout in 64-pin LQFP - higher memory headroom for complex USB stacks or dual-firmware images. | Requires larger PCB footprint and different power routing due to 64-pin package; not drop-in compatible with MC9S08JM32CGT's 44-pin layout. | Select when firmware exceeds 32 KB or requires extended RAM for USB buffer chaining; verify layout compatibility before migration. |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+ core, 128 KB flash, USB device controller, but no integrated USB transceiver - requires external PHY and 3.3-V regulator. | Higher performance and scalability, but increased BOM cost and design complexity for USB physical layer implementation. | Choose for future-proofing or mixed-signal applications needing >1 MB/s throughput; accept added component count and layout effort. |
Compared with MC9S08JM60CLH and S9KEAZ128AMLH, the MC9S08JM32CGT delivers optimal balance of USB integration, low-power operation, and compact 44-pin LQFP packaging - making it the most cost- and space-efficient choice for fixed-function USB peripheral designs under 32 KB firmware size.
Availability
MC9S08JM32CGT is available at Aetrix Electronics and suitable for USB human-interface devices, industrial sensor nodes, embedded firmware updaters, and motor control interface modules requiring stable component supply and long-term industrial temperature support.
Supply support for MC9S08JM32CGT 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 embedded MCU heritage.
The HCS08 JM-series - including MC9S08JM32CGT - was engineered specifically for cost-sensitive, USB-connected embedded control applications requiring integrated analog peripherals, low-power operation, and robust in-field debug capability.
FAQ
What is the maximum operating frequency of the MC9S08JM32CGT CPU core?
The MC9S08JM32CGT CPU core runs at up to 48 MHz, with a corresponding 24 MHz internal bus frequency. This timing is achieved using the on-chip MCG clock generator in PLL mode, and is fully supported across all operating modes including Run and Active Background Debug. The MC9S08JM32CGT datasheet specifies this as the absolute maximum core speed under rated voltage and temperature conditions.
Does the MC9S08JM32CGT include an integrated USB transceiver?
Yes, the MC9S08JM32CGT integrates a full-speed USB 2.0 transceiver with built-in 3.3-V regulator and a 1.5-kΩ pull-up resistor on the USBDP pin. This eliminates the need for external PHY components or discrete LDOs in USB device implementations, and is confirmed in Section 17 ("Universal Serial Bus Device Controller") of the official MC9S08JM60 Series Data Sheet, which explicitly covers the MC9S08JM32CGT.
What low-power modes does the MC9S08JM32CGT support, and which peripherals remain active in Stop3 mode?
The MC9S08JM32CGT supports Wait, Stop2, and Stop3 modes. In Stop3 mode, the ADC, ACMP, RTC, and USB module retain functionality with wake capability - allowing analog threshold detection or USB resume signaling while drawing less than 2 µA. This behavior is documented in Chapter 3 and Appendix A of the MC9S08JM60 Series Data Sheet, applicable to MC9S08JM32CGT per its coverage statement.
How many general-purpose I/O pins does the MC9S08JM32CGT provide in its 44-pin LQFP package?
The MC9S08JM32CGT in the 44-pin LQFP package provides 32 general-purpose I/O pins, distributed across Ports A–G with configurable pullups, slew rate, and drive strength. Pin assignment details are specified in Section 2.2 ("Device Pin Assignment") of the MC9S08JM60 Series Data Sheet, and the 44-pin variant is explicitly listed in the "Package Options" section covering MC9S08JM32.
Is the MC9S08JM32CGT pin-compatible with other members of the HCS08 JM family?
No - the MC9S08JM32CGT in 44-pin LQFP is not pin-compatible with 48-pin QFN or 64-pin LQFP variants like MC9S08JM60CLH. While peripheral sets and register maps are functionally aligned across the JM series, pin counts, layouts, and power domain assignments differ between packages. Migration requires PCB redesign; only same-package variants (e.g., MC9S08JM32CLH) share identical pinouts.
MC9S08JM32CGT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 48MHz
- Connectivity:
- I2C, LINbus, SCI, SPI, USB
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08JM32CGT FAQ
1.How can I place an order for MC9S08JM32CGT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08JM32CGT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S08JM32CGT reliable?
The price and inventory of MC9S08JM32CGT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08JM32CGT is usually 5 days.
3.What payment methods are accepted for MC9S08JM32CGT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08JM32CGT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08JM32CGT?
MC9S08JM32CGT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08JM32CGT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S08JM32CGT?
For technical support, including MC9S08JM32CGT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08JM32CGT requirements.
6.How does Aetrix verify that MC9S08JM32CGT is sourced from the original manufacturer or authorized distributors?
All MC9S08JM32CGT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S08JM32CGT meets industry standards.
7.What is the process for return or replacement of MC9S08JM32CGT?
All MC9S08JM32CGT units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08JM32CGT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S08JM32CGT part is unused and in its original packaging.
Return procedure for MC9S08JM32CGT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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