My Inquiry
My Account
NXP Semiconductors MC9S08JS8LCWJ
- Part No.:
- MC9S08JS8LCWJ
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC9S08JS8LCWJ.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,615
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC9S08JS8LCWJ from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 B RAM, USB 2.0 full-speed interface, and 24-pin QFN package. It features a 48 MHz CPU core, 24 MHz bus frequency, MCG clock generator with FLL/PLL, and integrated USB transceiver with on-chip 3.3 V regulator - used in embedded USB peripheral control such as industrial HID devices and sensor gateways.
For engineers reviewing the MC9S08JS8LCWJ datasheet, MC9S08JS8LCWJ pinout, MC9S08JS8LCWJ application, or MC9S08JS8LCWJ equivalent, key selection criteria include USB 2.0 full-speed compliance, 24-pin QFN thermal performance (θJA = 92°C/W), low-power stop modes (as low as 1.18 μA), and HCS08 instruction set compatibility for legacy code migration.
Technical Context
The MC9S08JS8LCWJ implements the HCS08 CPU core with 48 MHz maximum core frequency and 24 MHz bus speed, supporting up to 32 interrupt/reset sources. Its Multi-Purpose Clock Generator (MCG) provides flexible clocking via crystal, resonator, or external clock input, with FLL and PLL modes enabling precise frequency synthesis from internal or external references.
USB functionality is implemented as a full-speed (12 Mbps) peripheral with dedicated on-chip 3.3 V regulator (VUSB33), transceiver, and endpoint support (Endpoint 0 + up to 6 additional endpoints). The device integrates hardware CRC16-CCITT generation, real-time counter (RTC), and keyboard interrupt (KBI) module - all operating within –40°C to +85°C ambient temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 48 MHz max core clock and 24 MHz bus frequency - enables deterministic real-time control with cycle-accurate timing. |
| Memory | 8 KB on-chip flash (block-protected, secure), 512 B RAM, 256 B USB RAM - sufficient for USB HID firmware with bootloader and parameter storage. |
| USB Interface | USB 2.0 full-speed (12 Mbps) with integrated transceiver and dedicated 3.3 V regulator (VUSB33) - eliminates need for external USB PHY or LDO. |
| Power Modes | Wait + Stop2 + Stop3 modes; Stop3 current = 1.18 μA at 3 V - supports battery-powered USB peripherals with multi-year standby life. |
| Operating Voltage | 2.7–5.5 V supply range - compatible with single-cell Li-ion (3.0–4.2 V), 3.3 V logic, and 5 V legacy systems without level-shifting. |
| Package | 24-pin QFN (Case 1982-01, 4×4 mm, 0.5 mm pitch) with exposed pad - delivers 92°C/W junction-to-ambient thermal resistance for compact industrial layouts. |
| Temperature Range | –40°C to +85°C industrial grade - validated for operation in enclosed enclosures, motor drives, and factory automation environments. |
Pinout & Package
MC9S08JS8LCWJ uses a 24-pin QFN package (Case 1982-01, 4×4 mm body, 0.5 mm pitch) with exposed thermal pad. Pin assignments follow the standard MC9S08JS16 series layout, confirmed in Rev. 4 datasheet Figure 2 and Table 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0/KBIP0/TPMCH0 | Port A bit 0 / Keyboard interrupt 0 / TPM channel 0 input | Multi-function I/O usable for PWM output, edge-triggered wake-up, or keypad scanning - software-configurable pullup/pulldown. |
| PTA1/KBIP1/MISO | Port A bit 1 / Keyboard interrupt 1 / SPI MISO | Enables SPI slave communication or keyboard matrix scan; internal pullup reduces BOM count for open-drain interfaces. |
| USBDP / USBDN | USB differential data lines | Direct connection to USB connector; require 15.1 kΩ pull-down resistors per USB spec - no external transceiver needed. |
| VUSB33 | USB 3.3 V regulator output | Provides regulated 3.3 V for USB PHY; must be decoupled with 1 μF ceramic capacitor - powers internal transceiver only. |
| PTB0/IRQ/TCLK | Port B bit 0 / Interrupt request / Timer clock input | Dual-purpose pin supports external interrupt triggering or external clock source for TPM timer - critical for synchronous event capture. |
| RESET | Active-low reset input with internal pullup | Integrated 20–65 kΩ pullup eliminates external resistor; accepts power-on reset (POR) and low-voltage detect (LVD) reset events. |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 Full-Speed Peripheral | Integrated transceiver + 3.3 V regulator enables self-contained USB HID or CDC device design - no external PHY or LDO required. |
| Hardware CRC16-CCITT Generator | Dedicated circuit using x¹⁶+x¹²+x⁵+1 polynomial accelerates firmware update integrity checks and communication packet validation. |
| Multi-Purpose Clock Generator (MCG) | Supports FLL (for fast startup) and PLL (for precise 48 MHz synthesis) from crystal, resonator, or external clock - simplifies clock tree design. |
| Low-Voltage Detection (LVD) | Configurable thresholds (VLVD0 = 2.48–2.70 V, VLVD1 = 3.9–4.2 V) enable graceful shutdown or brownout recovery before flash corruption occurs. |
| Keyboard Interrupt Module (KBI) | 8-pin scan with programmable edge detection and software-selectable pullups - reduces external components for membrane keypad interfaces. |
Applications
| Industrial USB HID Device | Embedded Sensor Gateway |
|---|---|
|
Use Scenario: Compact industrial control panel with pushbuttons, LEDs, and USB connectivity to host PC for configuration and status reporting. IC Role / Device Role / Timing Role: Primary MCU executing HID report descriptor, managing button debouncing, driving LED indicators, and handling USB enumeration and data transfer. Use Value: Integrated USB transceiver and 8 KB flash allow full HID-compliant firmware in single chip; 24-pin QFN enables <100 mm² PCB footprint. |
Use Scenario: Battery-powered environmental sensor node aggregating temperature, humidity, and motion data, then transmitting via USB to gateway PC. IC Role / Device Role / Timing Role: System controller managing ADC sampling, RTC timestamping, USB suspend/resume, and low-power stop mode transitions. Use Value: Stop3 current of 1.18 μA at 3 V extends battery life to >5 years in sleep; USB suspend current of 273.3 μA maintains bus presence without waking CPU. |
| Legacy RS-232 to USB Bridge | USB Bootloader Target |
|
Use Scenario: Retrofit adapter converting legacy serial instrumentation (SCI-based) to modern USB hosts, requiring minimal external components. IC Role / Device Role / Timing Role: SCI-to-USB protocol translator with UART framing, USB CDC ACM class implementation, and automatic baud rate detection. Use Value: On-chip SCI with LIN break generation supports legacy serial protocols; USB 2.0 full-speed ensures 12 Mbps throughput for high-speed logging. |
Use Scenario: Field-upgradable embedded device where firmware updates are delivered via USB mass storage or vendor-specific class interface. IC Role / Device Role / Timing Role: Host-controlled bootloader executing flash erase (full or partial), program, and verify operations while preserving security blocks. Use Value: Mass-erase capability and 1 KB protected boot sector enable secure over-the-air updates without exposing application code. |
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 |
|---|---|---|---|
| MC9S08JS16LCWJ | 16 KB flash, same 24-pin QFN package, identical peripherals and pinout | Supports larger firmware images (e.g., USB CDC + custom HID descriptors + encryption stack) | Select when >8 KB application code size or future firmware expansion headroom is required. |
| S9S08SG8E2MTJR | NXP S08 family successor; 8 KB flash, 24-pin QFN, but lacks integrated USB transceiver and VUSB33 regulator | Requires external USB PHY and 3.3 V LDO - increases BOM cost and board area | Choose only if migrating to newer S08 silicon with toolchain continuity, accepting added USB component overhead. |
Compared with MC9S08JS8LCWJ, MC9S08JS16LCWJ offers double flash capacity with zero layout or firmware porting effort, while S9S08SG8E2MTJR sacrifices integrated USB to reduce die cost - making MC9S08JS8LCWJ optimal for cost-sensitive, space-constrained USB peripheral designs requiring minimal external components.
Availability
MC9S08JS8LCWJ is available at Aetrix Electronics and suitable for industrial USB HID devices, embedded sensor gateways, RS-232-to-USB bridges, and field-upgradable bootloader targets requiring stable component supply across multi-year production cycles.
Supply support for MC9S08JS8LCWJ 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 acquired Freescale in 2015 and continues to support the HCS08 portfolio with long-term industrial product commitments and documentation maintenance.
The MC9S08JS8LCWJ belongs to the MC9S08JSxx series - designed specifically for cost-sensitive, USB-connected embedded control applications where integration of USB PHY, regulator, and low-power operation reduces system complexity and bill-of-materials.
FAQ
What is the maximum USB data rate supported by the MC9S08JS8LCWJ?
The MC9S08JS8LCWJ supports USB 2.0 full-speed operation at 12 Mbps, compliant with USB Specification Revision 2.0. Its integrated transceiver and dedicated VUSB33 regulator enable direct connection to USB connectors without external PHY components. This rate is sufficient for HID, CDC ACM, and mass storage class implementations in the MC9S08JS8LCWJ firmware.
Does the MC9S08JS8LCWJ include an internal voltage regulator for USB operation?
Yes, the MC9S08JS8LCWJ includes an on-chip 3.3 V regulator (VUSB33) dedicated to powering its internal USB transceiver. This eliminates the need for an external LDO in USB applications. The VUSB33 pin must be decoupled with a 1 μF ceramic capacitor, and it supplies only the USB PHY - not general I/O or core logic.
What is the minimum supply current in stop mode for the MC9S08JS8LCWJ?
The MC9S08JS8LCWJ achieves 1.18 μA typical supply current in Stop3 mode at 3 V and 25°C, as specified in Table 7 of the Rev. 4 datasheet. This ultra-low current enables multi-year battery life in USB-peripheral applications that spend most time in deep sleep, waking only on USB activity or external interrupt.
Is the MC9S08JS8LCWJ pin-compatible with other members of the MC9S08JSxx family?
Yes, the MC9S08JS8LCWJ is pin-compatible with MC9S08JS16LCWJ and MC9S08JS8L variants in the 24-pin QFN package (Case 1982-01). All share identical pin assignments, electrical characteristics, and peripheral mappings - allowing drop-in replacement for flash capacity scaling without PCB revision.
What clock sources does the MC9S08JS8LCWJ support for USB operation?
The MC9S08JS8LCWJ requires a 48 MHz clock for USB module operation, generated internally via its MCG's PLL mode using an external crystal (e.g., 4 MHz or 8 MHz) or resonator. The MCG automatically configures the PLL with appropriate dividers; no external oscillator is needed beyond the base crystal/resonator feeding XTAL/EXTAL pins.
MC9S08JS8LCWJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 48MHz
- Connectivity:
- LINbus, SCI, SPI, USB
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 14
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08JS8LCWJ FAQ
1.How can I place an order for MC9S08JS8LCWJ through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08JS8LCWJ 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 MC9S08JS8LCWJ reliable?
The price and inventory of MC9S08JS8LCWJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08JS8LCWJ is usually 5 days.
3.What payment methods are accepted for MC9S08JS8LCWJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08JS8LCWJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08JS8LCWJ?
MC9S08JS8LCWJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08JS8LCWJ 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 MC9S08JS8LCWJ?
For technical support, including MC9S08JS8LCWJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08JS8LCWJ requirements.
6.How does Aetrix verify that MC9S08JS8LCWJ is sourced from the original manufacturer or authorized distributors?
All MC9S08JS8LCWJ 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 MC9S08JS8LCWJ meets industry standards.
7.What is the process for return or replacement of MC9S08JS8LCWJ?
All MC9S08JS8LCWJ units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08JS8LCWJ, 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 MC9S08JS8LCWJ part is unused and in its original packaging.
Return procedure for MC9S08JS8LCWJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC9S08JS8LCWJ Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
