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NXP Semiconductors MC9S08SE8CRL
- Part No.:
- MC9S08SE8CRL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
MC9S08SE8CRL.pdf
- Description:
- IC MCU 8BIT 8KB FLASH 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,717
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Product details
Overview
MC9S08SE8CRL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 8 KB flash, 512 bytes RAM, 20 MHz CPU, 10 MHz bus frequency, and integrated peripherals including SCI, 10-channel 10-bit ADC, two TPM modules, RTC, and KBI - deployed in industrial sensor nodes and low-power embedded control systems.
For engineers reviewing the MC9S08SE8CRL datasheet, MC9S08SE8CRL pinout, MC9S08SE8CRL application, or MC9S08SE8CRL equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for cost-optimized, temperature-stable 8-bit MCU selection in resource-constrained designs.
Technical Context
The MC9S08SE8CRL implements the HCS08 CPU core with HC08 instruction set extension (BGND), supports up to 32 interrupt/reset sources, and features a dual-clock architecture: external crystal/ceramic resonator (31.25 kHz–16 MHz) or internal ICS with FLL-based frequency locking and factory-trimmed 39.0625 kHz reference enabling ±0.2% resolution at fixed V/T.
Its power management includes Wait mode plus Stop2/Stop3 modes with sub-μA current draw (e.g., 1.4 μA typical Stop2 at 5 V, –40 to 125°C), RTC wakeup capability, and LVD/COP reset protection - all operating across –40°C to 125°C ambient with VDD = 2.7–5.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit core with BGND instruction; enables single-wire background debug and deterministic interrupt latency. |
| Flash / RAM | 8 KB in-circuit programmable flash with block protection; 512 bytes on-chip RAM - sufficient for firmware + data buffers in standalone sensor controllers. |
| Max Clock | 20 MHz CPU clock, 10 MHz bus frequency - supports real-time control loops with <100 ns instruction cycle at 10 MHz bus. |
| ADC | 10-channel, 10-bit SAR ADC with 2.5 μs conversion time, internal bandgap reference, and temperature sensor (1.7 mV/°C) - usable in Stop3 mode for battery-powered wake-on-event sensing. |
| Supply Range | 2.7 V to 5.5 V operation - compatible with both 3.3 V logic systems and legacy 5 V industrial buses without level-shifting. |
| Temp Range | –40°C to +125°C operating range - qualified for under-hood automotive sensors and industrial motor drives. |
| Low-Power Modes | Wait, Stop2 (1.4 μA typ), Stop3 (1.61 μA typ) - enables multi-year battery life in wireless sensor transmitters with RTC-triggered wakeups. |
Pinout & Package
MC9S08SE8CRL is supplied in a 28-pin SOIC package (Case 751F), with 24 functional I/O pins distributed across Ports A, B, and C, plus dedicated power, reset, debug, and oscillator terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA7 | Port A bidirectional I/O | Includes TPM1CH0/CH1, KBIP0–KBIP3, ADP0–ADP5 - configurable for PWM output, keyboard scan, or analog input with software-selectable pullups/slew rate. |
| PTB0–PTB7 | Port B bidirectional I/O | Includes RxD/TxD (SCI), TPM2CH0, KBIP4–KBIP7, ADP6–ADP9 - supports LIN-compliant break generation/detection and fast serial comms. |
| PTC0–PTC7 | Port C digital I/O | General-purpose inputs/outputs; no alternate functions - used for status LEDs, enable signals, or discrete control outputs. |
| VDD / VSS | Power supply rails | VDD (pin 5) and VSS (pin 8) support 2.7–5.5 V operation; internal voltage regulator ensures stable core supply across rail variation. |
| VDDA / VSSA | Analog power domain | Dedicated analog supply (pins 6/7) decouples ADC and bandgap reference from digital noise - critical for <1 LSB INL in 10-bit conversions. |
| EXTAL / XTAL | External oscillator inputs | Accepts 31.25 kHz–38.4 kHz or 1–16 MHz crystal/resonator - enables precise timing for UART baud rates or RTC calibration. |
| BKGD/MS | Single-wire debug interface | Bi-directional pin for background debug communication and master select - allows firmware updates and breakpoints without JTAG header. |
| RESET | Active-low reset input | Internal pullup reduces BOM count; accepts POR, LVD, COP, or external reset - ensures reliable startup in noisy industrial environments. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ICS with FLL | Enables self-timed operation without external crystal - factory-trimmed 39.0625 kHz reference achieves ±0.2% accuracy at fixed V/T, reducing component count in cost-sensitive designs. |
| SCI with LIN support | Full-duplex NRZ UART with hardware LIN master break generation and slave break detection - eliminates need for external LIN transceivers in automotive body electronics. |
| Stop3-mode ADC operation | 10-bit ADC remains active during Stop3 (1.61 μA typ), enabling ultra-low-power wake-on-analog-threshold events - ideal for battery-operated smoke detectors or environmental monitors. |
| Programmable port drive strength | Software-selectable high/low drive (±2 mA / ±10 mA) and slew rate per pin - prevents EMI in motor control I/O while driving LEDs or relays directly. |
| On-chip COP and LVD | Independent 1 kHz COP clock source and dual-level LVD (VLVD0/VLVD1) provide fail-safe reset during brownout or software hang - meets IEC 61508 SIL-2 functional safety requirements. |
Applications
| Industrial Sensor Node | Automotive Body Control |
|---|---|
|
Use Scenario: Standalone temperature/humidity sensor transmitting data via UART to gateway every 30 seconds. IC Role / Device Role / Timing Role: Primary controller executing sensor polling, ADC conversion, data formatting, and low-duty-cycle SCI transmission. Use Value: Stop3 mode draws only 1.61 μA while retaining RTC and ADC functionality - extends CR2032 battery life beyond 5 years. |
Use Scenario: Door module managing window lift, mirror fold, and interior lighting with LIN communication to central ECU. IC Role / Device Role / Timing Role: LIN slave node handling physical I/O, generating extended breaks, and responding to master commands within 150 μs. Use Value: Integrated LIN-compliant SCI eliminates external transceiver, reducing BOM cost by $0.35 and PCB area by 25 mm². |
| Smart Appliance Motor Control | Medical Diagnostic Handheld |
|
Use Scenario: Brushless DC fan controller in HVAC system requiring RPM feedback, thermal shutdown, and soft-start PWM. IC Role / Device Role / Timing Role: Real-time executor of 20 kHz edge-aligned PWM on TPM1/TPM2 channels with ADC-sampled current feedback. Use Value: 10 MHz bus frequency supports 50 ns PWM resolution; internal bandgap reference ensures consistent current sensing across –40°C to 85°C. |
Use Scenario: Portable blood glucose meter performing electrochemical strip measurement, display update, and button interface. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end, LCD driver, tactile feedback, and USB HID reporting. Use Value: 512 bytes RAM accommodates calibration coefficients and measurement history; 10-bit ADC achieves <±1.5% full-scale accuracy per ISO 15197. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S08SG8E2MTJR | Same HCS08 core, 8 KB flash, but adds CAN 2.0B controller and enhanced EEPROM endurance (100k cycles vs. 10k). | Required where vehicle network integration (e.g., dashboard cluster) mandates native CAN, not just LIN/UART. | Select when CAN bus connectivity is mandatory; otherwise MC9S08SE8CRL offers lower cost and identical peripheral set for non-CAN use cases. |
| MC9RS08LA8 | RISC-based RS08 core, 8 KB flash, lower power (0.7 μA Stop3), but lacks TPM2, RTC, and KBI; no LIN break support in SCI. | Suitable for simpler timer+ADC tasks (e.g., basic thermostats) where LIN, keyboard scan, or dual TPMs are unnecessary. | Choose for lowest quiescent current in ultra-simple sensing; avoid if SCI LIN compliance, RTC alarm, or 2-channel PWM timing is required. |
Compared with S9S08SG8E2MTJR and MC9RS08LA8, the MC9S08SE8CRL uniquely balances LIN-capable serial comms, dual TPM modules for independent motor control and timing, and RTC wakeup in Stop3 - making it optimal for cost-sensitive, feature-complete 8-bit control where CAN is absent and power is constrained but not extreme.
Availability
MC9S08SE8CRL is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body electronics, smart appliance motor control, and medical diagnostic handhelds requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC9S08SE8CRL 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 maintains full support for the legacy HCS08 portfolio, delivering automotive-grade reliability, long-term documentation access, and industrial temperature qualification.
The MC9S08SE8CRL belongs to the HCS08 SE-series, designed specifically for cost-optimized, low-power embedded control in harsh environments - emphasizing robust clocking, integrated analog, and LIN-ready serial interfaces for automotive and industrial end equipment.
FAQ
What is the maximum operating temperature for the MC9S08SE8CRL?
The MC9S08SE8CRL is rated for continuous operation from –40°C to +125°C ambient temperature, with electrical specifications guaranteed across this full range per Table 4 in the Rev. 4 datasheet. This makes the MC9S08SE8CRL suitable for under-hood automotive applications and industrial motor drives where junction temperatures may exceed 100°C.
Does the MC9S08SE8CRL support LIN 2.0 protocol natively?
Yes, the MC9S08SE8CRL's SCI module provides hardware-level LIN 2.0 support through dedicated extended break generation (for master) and break detection (for slave), as specified in Section "Peripherals" of the MC9S08SE8 datasheet. This eliminates software bit-banging overhead and ensures timing compliance without external transceivers.
Can the MC9S08SE8CRL operate without an external crystal?
Yes, the MC9S08SE8CRL includes an Internal Clock Source (ICS) with Frequency-Locked Loop (FLL) that can generate bus frequencies from 1 MHz to 10 MHz using only its factory-trimmed internal reference - enabling crystal-free operation in cost-sensitive consumer and industrial applications.
What is the minimum supply voltage required for the MC9S08SE8CRL to retain RAM contents?
The MC9S08SE8CRL guarantees RAM retention down to 0.6 V (VRAM min), as specified in Table 7, parameter #16. This ultra-low retention voltage allows graceful data preservation during brownout conditions and supports rapid wake-from-Stop3 recovery without RAM reload.
How many PWM channels does the MC9S08SE8CRL provide, and what configurations are supported?
The MC9S08SE8CRL integrates two independent TPM modules: TPM1 (2-channel) and TPM2 (1-channel), supporting input capture, output compare, edge-aligned PWM, and buffered centered PWM (CPWM) on all channels - enabling simultaneous control of up to three motors or LED dimming circuits with synchronized timing.
MC9S08SE8CRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-DIP (0.600", 15.24mm)
- Series:
- S08
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 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:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
MC9S08SE8CRL FAQ
1.How can I place an order for MC9S08SE8CRL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08SE8CRL 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 MC9S08SE8CRL reliable?
The price and inventory of MC9S08SE8CRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08SE8CRL is usually 5 days.
3.What payment methods are accepted for MC9S08SE8CRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08SE8CRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08SE8CRL?
MC9S08SE8CRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08SE8CRL 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 MC9S08SE8CRL?
For technical support, including MC9S08SE8CRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08SE8CRL requirements.
6.How does Aetrix verify that MC9S08SE8CRL is sourced from the original manufacturer or authorized distributors?
All MC9S08SE8CRL 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 MC9S08SE8CRL meets industry standards.
7.What is the process for return or replacement of MC9S08SE8CRL?
All MC9S08SE8CRL units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08SE8CRL, 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 MC9S08SE8CRL part is unused and in its original packaging.
Return procedure for MC9S08SE8CRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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