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NXP Semiconductors MC9S08SE4MWL
- Part No.:
- MC9S08SE4MWL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MC9S08SE4MWL.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,632
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Product details
Overview
MC9S08SE4MWL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 bytes RAM, 10-bit ADC, dual TPM timers, SCI serial interface, and real-time counter - designed for cost-sensitive industrial control and sensor interface applications operating at up to 10 MHz bus frequency.
For engineers reviewing the MC9S08SE4MWL datasheet, MC9S08SE4MWL pinout, MC9S08SE4MWL application, or MC9S08SE4MWL equivalent, this page delivers verified technical context, package-specific pin mapping, power-mode current data, clock source options, and validated alternative parts for rapid design-in and BOM optimization.
Technical Context
The MC9S08SE4MWL implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with factory-trimmed 39.0625 kHz reference, enabling bus frequencies from 1–10 MHz across voltage/temperature ranges.
Peripherals include a 10-channel 10-bit ADC with 2.5 μs conversion time and temperature sensor (1.7 mV/°C), two timer/pulse-width modulator modules (TPM1: 2-channel, TPM2: 1-channel), SCI supporting LIN master/slave extended break, and RTC with binary/decimal prescaler - all functional in Stop3 low-power mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with HC08 instruction set plus BGND; supports up to 32 interrupt/reset sources |
| Flash / RAM | 4096 bytes flash (block-protected, in-circuit programmable); 256 bytes RAM |
| Bus Frequency | Up to 10 MHz - enables deterministic real-time response in control loops and communication stacks |
| ADC | 10-channel, 10-bit resolution; 2.5 μs conversion time; internal bandgap reference; runs in Stop3 mode |
| Power Modes | Wait, Stop2, and Stop3 modes; Stop3 current as low as 1.44 μA (–40 to 85°C, 3 V) |
| Clock Sources | External crystal/resonator (31.25 kHz–16 MHz) or internal ICS with FLL; ±0.2% trim resolution at fixed V/T |
| Operating Voltage | 2.7–5.5 V - supports direct connection to standard industrial 3.3 V and 5 V rails without level-shifting |
Pinout & Package
MC9S08SE4MWL is packaged in 28-pin SOIC (Case 751F), with full pin compatibility to the MC9S08SE8 series. Pin functions are software-configurable per port register settings, including pullup/slew rate/drive strength control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA7 | General-purpose I/O / TPM1CH0/CH1 / KBIP0–KBIP3 / ADP0–ADP5 | Multi-function port A pins support timer capture/compare, keyboard interrupt, and analog input with remappable TPM channels |
| PTB0–PTB7 | General-purpose I/O / RxD/TxD / TPM2CH0 / KBIP4–KBIP7 / ADP6–ADP9 | Port B includes SCI UART interface, 1-channel TPM, 4-key KBI inputs, and 4 ADC channels |
| PTC0–PTC7 | General-purpose I/O only | 8-bit port C provides dedicated digital I/O with no alternate peripheral functions |
| PTA4 / BKGD/MS | Single-wire background debug / Master select | Enables in-circuit debugging and programming via single-pin interface - reduces test point count |
| PTA5 / IRQ/TCLK/RESET | Interrupt request / Timer clock input / Reset | Combines critical system control signals on one pin; reset is active-low with internal pullup |
| VDD / VSS | Power supply / Ground | Dual power domains: VDD/VSS for digital logic; VDDA/VSSA (bonded to VDD/VSS in 16-pin TSSOP) for analog subsystem |
Key Features
| Feature | Design Value |
|---|---|
| Internal Clock Source (ICS) | FLL-based with factory-trimmed 39.0625 kHz reference; achieves ±0.2% resolution and <±2% deviation over –40 to 125°C |
| Low-Voltage Detection (LVD) | Dual-threshold detection (VLVD0 = 2.48–2.70 V, VLVD1 = 3.9–4.2 V) with hysteresis prevents brownout-induced erratic operation |
| ADC Temperature Sensor | Integrated 1.7 mV/°C sensor with automatic calibration path - enables self-monitoring without external components |
| Stop3 Mode Power Efficiency | 1.44 μA typical current (–40 to 85°C, 3 V) with RTC active - extends battery life in always-on sensor nodes |
| SCI with LIN Support | Full-duplex NRZ UART with hardware-generated LIN master break and slave break detection - simplifies automotive body electronics integration |
Applications
| Industrial Motor Control | Smart Sensor Node |
|---|---|
Use Scenario: Brushless DC motor commutation and speed regulation in HVAC blowers and small pumps. IC Role / Device Role / Timing Role: MCU executes closed-loop PID control using TPM PWM outputs and ADC feedback from current/voltage sensors. Use Value: 10 MHz bus frequency ensures sub-10 μs interrupt latency; Stop3 mode enables fast wake-on-sensor-event with <2 μA quiescent current. |
Use Scenario: Battery-powered environmental sensor (temp/humidity/pressure) transmitting data via UART to gateway. IC Role / Device Role / Timing Role: MCU manages sensor polling, ADC conversion, data formatting, and low-duty-cycle SCI transmission. Use Value: Integrated temperature sensor and 10-bit ADC eliminate external signal conditioning; RTC + Stop3 enable precise timed wakeups every 30 s. |
| Automotive Body Electronics | Home Appliance Control |
Use Scenario: Door module controlling window lift, mirror adjustment, and interior lighting with LIN bus interface. IC Role / Device Role / Timing Role: MC9S08SE4MWL acts as LIN slave node, decoding commands and driving relays/LEDs via GPIO and TPM outputs. Use Value: Hardware LIN break detection and generation reduce CPU overhead; internal pullups eliminate 8 external resistors. |
Use Scenario: Washing machine main control board managing motor drive, water valve timing, and user interface. IC Role / Device Role / Timing Role: MCU sequences wash cycles using TPM timers, reads front-panel buttons via KBI, and monitors thermistor via ADC. Use Value: Keyboard interrupt module (KBI) supports debounced key scanning with zero CPU load; 4 KB flash accommodates firmware + safety diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08SE8MWL | 8 KB flash, 512 bytes RAM, identical peripherals and pinout - higher memory headroom for larger firmware or data logging | Suitable where bootloader, OTA updates, or extended diagnostic buffers are required | Select when >4 KB code space or >256 bytes RAM is needed; same PCB layout and toolchain |
| S9S08SG48E1MTJ | 48-pin LQFP, 4 KB flash, 256 bytes RAM, enhanced ADC (12-bit option), SPI/I²C interfaces - broader peripheral set but different package | Better suited for designs requiring multiple serial buses or higher-resolution sensing | Choose when SPI/I²C connectivity or 12-bit ADC is mandatory; requires PCB redesign |
Compared with MC9S08SE4MWL, MC9S08SE8MWL offers double flash/RAM without layout change, while S9S08SG48E1MTJ adds SPI/I²C and optional 12-bit ADC at the cost of larger footprint and revised routing - making MC9S08SE4MWL optimal for compact, cost-driven 28-pin SOIC implementations.
Availability
MC9S08SE4MWL is available at Aetrix Electronics and suitable for industrial motor control, smart sensor nodes, automotive body electronics, and home appliance control requiring stable component supply and long-term production continuity.
Supply support for MC9S08SE4MWL 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, IoT, and mobile applications.
The MC9S08SE4MWL belongs to the HCS08 family - engineered for cost-effective, low-power embedded control in resource-constrained systems where deterministic timing, integrated analog, and robust debug capability are essential.
FAQ
What is the maximum bus frequency supported by the MC9S08SE4MWL?
The MC9S08SE4MWL supports a maximum bus frequency of 10 MHz, achieved via its internal clock source (ICS) with frequency-locked loop (FLL). This is confirmed in the MC9S08SE8 Series Data Sheet Rev. 4, Section 3.8, where ICS output specifications list a trimmed DCO range of 16–20 MHz - yielding up to 10 MHz bus clock when divided by 2. The MC9S08SE4MWL inherits this capability as a member of the SE8 series.
Does the MC9S08SE4MWL include an integrated temperature sensor?
Yes, the MC9S08SE4MWL includes an integrated temperature sensor with a sensitivity of 1.7 mV/°C, documented in the "Peripherals" section of the MC9S08SE8 Series Data Sheet Rev. 4. This sensor is accessible via the ADC's internal channel and operates in Stop3 mode, enabling battery-powered thermal monitoring without external components.
What package type is used for the MC9S08SE4MWL?
The MC9S08SE4MWL is supplied in a 28-pin SOIC package (Case 751F), as specified in the "Package Options" section of the MC9S08SE8 Series Data Sheet Rev. 4. This matches the pin assignments and thermal characteristics (θJA = 70 °C/W on single-layer board) defined for the 28-pin SOIC variant.
Can the MC9S08SE4MWL operate from a 3.3 V supply?
Yes, the MC9S08SE4MWL operates across 2.7–5.5 V, explicitly validated for 3.3 V use in electrical characteristics tables (e.g., Table 7, VOH/VOL at 3 V; Table 8, supply current at 3 V). All peripherals - including ADC, SCI, and TPM - function correctly at 3.3 V, with internal voltage references maintaining accuracy.
Is the MC9S08SE4MWL pin-compatible with the MC9S08SE8MWL?
Yes, the MC9S08SE4MWL is fully pin-compatible with the MC9S08SE8MWL in the same 28-pin SOIC package. Both share identical pin assignments, electrical characteristics, and peripheral mappings - differing only in flash (4 KB vs. 8 KB) and RAM (256 B vs. 512 B) capacity, as confirmed in the "MC9S08SE8 Series" coverage statement on page 2 of the MC9S08SE8 Data Sheet Rev. 4.
MC9S08SE4MWL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- LINbus, SCI
- Peripherals:
- LVD, POR, PWM
- Number of I/O:
- 24
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08SE4MWL FAQ
1.How can I place an order for MC9S08SE4MWL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08SE4MWL 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 MC9S08SE4MWL reliable?
The price and inventory of MC9S08SE4MWL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08SE4MWL is usually 5 days.
3.What payment methods are accepted for MC9S08SE4MWL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08SE4MWL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08SE4MWL?
MC9S08SE4MWL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08SE4MWL 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 MC9S08SE4MWL?
For technical support, including MC9S08SE4MWL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08SE4MWL requirements.
6.How does Aetrix verify that MC9S08SE4MWL is sourced from the original manufacturer or authorized distributors?
All MC9S08SE4MWL 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 MC9S08SE4MWL meets industry standards.
7.What is the process for return or replacement of MC9S08SE4MWL?
All MC9S08SE4MWL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08SE4MWL, 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 MC9S08SE4MWL part is unused and in its original packaging.
Return procedure for MC9S08SE4MWL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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