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NXP Semiconductors MC9S08QE4CLCR
- Part No.:
- MC9S08QE4CLCR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
MC9S08QE4CLCR.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,442
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Product details
Overview
MC9S08QE4CLCR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 4 KB flash, 256 B RAM, and integrated peripherals including 12-bit ADC, dual analog comparators, SCI, SPI, I²C, two 16-bit TPM modules, RTC, and low-power stop3 mode consuming 0.4 µA at 3 V. It operates from 1.8 V to 3.6 V across –40 °C to +85 °C and targets battery-powered sensor nodes and industrial control interfaces.
For engineers reviewing the MC9S08QE4CLCR datasheet, MC9S08QE4CLCR pinout, MC9S08QE4CLCR application, or MC9S08QE4CLCR equivalent, this page delivers verified package mapping (32-pin QFN), confirmed pin functions per Freescale MC9S08QE8 Series Data Sheet Rev. 8, validated low-voltage operation down to 1.8 V, real-time counter functionality in all modes, and accurate supply current specs for stop3 (0.4 µA typical) and run modes (5.6 mA @ 10 MHz).
Technical Context
The MC9S08QE4CLCR 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 internal reference enabling ±2% bus frequency accuracy from 1 MHz to 10 MHz across voltage and temperature.
Peripherals include a 10-channel 12-bit ADC with 2.5 µs conversion time and internal temperature sensor (1.7 mV/°C), two ACMPs with edge-selectable interrupts and bandgap reference option, and dual 16-bit TPM modules supporting input capture, output compare, and PWM generation - all functional in stop3 mode with external clock or LPO.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU with BGND instruction and 32 interrupt sources |
| Flash / RAM | 4096 bytes flash (read/program/erase over full VDD/temp); 256 bytes RAM with security lock |
| Operating Voltage | 1.8 V to 3.6 V - enables direct Li-ion/Li-Po battery interface without regulator |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and automotive under-hood environments |
| Stop3 Current | 0.4 µA typical at 3 V - supports multi-year battery life in wake-on-event sensor applications |
| ADC Resolution | 12-bit with 10 channels, 2.5 µs conversion, internal bandgap reference, and temp sensor (1.7 mV/°C) |
| Real-Time Counter | 8-bit modulus counter with binary/decimal prescaler; runs on 1 kHz LPO in all modes including stop3 |
Pinout & Package
MC9S08QE4CLCR is housed in a 32-pin QFN package (case number 2078-01), exposed pad, RoHS-compliant, with 0.5 mm pitch and thermal pad for enhanced heat dissipation in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply (digital) | Main 1.8–3.6 V supply rail; decoupling required within 10 mm of pin |
| VSS | Digital ground | Reference return for digital logic and I/O; tied to exposed pad |
| VDDA/VREFH | Analog power / ADC reference high | Separate analog supply input; must be ≥ VDD and ≤ 3.6 V; filters noise for ADC accuracy |
| VSSA/VREFL | Analog ground / ADC reference low | Isolated analog return; routed separately from digital ground to minimize coupling |
| PTA5/IRQ/TCLK/RESET | Multi-function pin | Configurable as active-low reset (open-drain with internal pullup), IRQ input, or TCLK input for debug |
| PTA4/ACMP1O/BKGD/MS | Debug & analog output | Single-wire background debug (BKGD) interface; also outputs ACMP1 comparator result |
| PTB0–PTB7 | General-purpose I/O | Up to 8 pins support KBIP, TPM, SCI, SPI, ADC, and ACMP functions; configurable drive strength and slew rate |
| PTC0–PTC7 | General-purpose I/O | Includes ACMP2 inputs/outputs, TPM2CH2, and dedicated analog comparator pins with hysteresis |
| PTD0–PTD3 | General-purpose I/O | GPIO-only pins with programmable pullups; no alternate peripheral functions assigned |
Key Features
| Feature | Design Value |
|---|---|
| Low-power stop3 mode | 0.4 µA typical supply current with RTC running on 1 kHz LPO - enables decade-scale battery life |
| On-chip security circuitry | Prevents unauthorized read-out of flash and RAM contents via background debug interface |
| Peripheral clock gating | Individual enable/disable control per module reduces dynamic power by disabling unused clocks |
| Internal bandgap reference | 1.17 V ±0.02 V (factory trimmed) used for ADC and ACMP - eliminates need for external reference |
| Wake-up from stop3 | 6 µs typical wake-up time from stop3 to active run mode - critical for responsive event-driven systems |
Applications
| Industrial Sensor Node | Smart Thermostat Interface |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Main controller executing ADC sampling, RTC-based scheduling, low-power state management, and SCI communication. Use Value: Stop3 current of 0.4 µA extends CR2032 battery life beyond 5 years; integrated 12-bit ADC eliminates external signal conditioning. |
Use Scenario: Local HVAC control unit reading thermistor, driving relays, and communicating via I²C to display panel. IC Role / Device Role / Timing Role: Real-time system controller managing analog sensing, relay timing, and multi-master I²C bus arbitration. Use Value: Dual ACMPs enable fast over-temperature shutdown; TPM modules generate precise 25 kHz PWM for fan speed control. |
| Automotive Body Control Module | Portable Medical Monitor |
Use Scenario: Door module monitoring switch inputs, controlling LED status, and reporting faults over LIN bus. IC Role / Device Role / Timing Role: LIN slave node with extended break detection, KBI for switch debounce, and low-voltage warning interrupt. Use Value: Built-in LIN physical layer support (SCI with master/slave break gen/detect) reduces BOM count; LVD interrupt triggers safe shutdown below 1.88 V. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and displaying results on OLED. IC Role / Device Role / Timing Role: Signal acquisition engine performing synchronized 12-bit ADC conversions, temperature compensation, and SPI-driven display update. Use Value: On-chip temperature sensor (1.7 mV/°C) calibrates ADC offset drift; 2.5 µs conversion enables >300 kSPS effective sampling for motion artifact rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08QE8CLCR | 8 KB flash, 512 B RAM, identical peripherals and pinout | Requires same PCB layout; suitable when firmware size exceeds 4 KB or future scalability needed | Select MC9S08QE8CLCR if code footprint exceeds 4 KB or long-term firmware growth is anticipated. |
| S9KEAZ128AMLH | ARM Cortex-M0+, 128 KB flash, 16 KB RAM, higher performance but larger QFP-64 package | Not pin-compatible; requires PCB redesign; offers USB, CAN, and higher-speed ADC | Choose S9KEAZ128AMLH only when migrating to ARM architecture or requiring USB/CAN connectivity. |
Compared with MC9S08QE4CLCR, MC9S08QE8CLCR provides double flash/RAM in identical 32-pin QFN packaging for seamless upgrade, while S9KEAZ128AMLH delivers ARM-class performance at the cost of board-level redesign and higher power - making MC9S08QE4CLCR optimal for cost- and space-constrained 8-bit embedded control.
Availability
MC9S08QE4CLCR is available at Aetrix Electronics and suitable for industrial sensor nodes, smart thermostat interfaces, and automotive body control modules requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant manufacturing.
Supply support for MC9S08QE4CLCR 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 delivering secure, energy-efficient solutions for automotive, industrial, IoT, and mobile applications.
The MC9S08QE4CLCR belongs to the HCS08-based QE series designed specifically for ultra-low-power, cost-sensitive embedded control in space-constrained environments - emphasizing stop-mode efficiency, integrated analog peripherals, and robust debug capability.
FAQ
What is the maximum operating frequency of the MC9S08QE4CLCR?
The MC9S08QE4CLCR supports a maximum bus frequency of 10 MHz when using the internal clock source (ICS) with FLL enabled. At 3.6 V, the HCS08 core can operate up to 20 MHz in FEI mode, but the documented maximum reliable bus frequency across full voltage and temperature range (–40 °C to +85 °C, 1.8–3.6 V) is 10 MHz. This ensures timing compliance for all peripherals including ADC, TPM, and SCI.
Does the MC9S08QE4CLCR support in-circuit debugging?
Yes, the MC9S08QE4CLCR features a single-wire background debug (BKGD) interface on PTA4, enabling full in-circuit debugging including breakpoint setting, memory inspection, and register access. The on-chip debug module supports one hardware breakpoint plus two additional breakpoints, and includes an eight-deep FIFO for trace of program flow changes - all accessible without external JTAG adapter.
What are the key low-power modes supported by the MC9S08QE4CLCR?
The MC9S08QE4CLCR supports five low-power modes: Wait, Stop1, Stop2, Stop3, and Very-Low-Power Run. Stop3 is the deepest, drawing just 0.4 µA typical at 3 V with RTC running on the 1 kHz low-power oscillator. Wake-up occurs in 6 µs via KBI, RTC overflow, or external interrupt - making it ideal for event-triggered battery-powered applications where responsiveness and longevity are both critical.
Can the MC9S08QE4CLCR operate from a single 2.0 V supply?
Yes, the MC9S08QE4CLCR is fully specified to operate from 1.8 V to 3.6 V. At 2.0 V, it maintains full functionality including 12-bit ADC operation, SCI communication, and stop3 mode with RTC. The low-voltage detection (LVD) threshold is set at 1.84–1.96 V (rising/falling), ensuring safe brown-out protection without false resets during transient dips near the minimum supply.
Is the MC9S08QE4CLCR pin-compatible with other devices in the QE family?
Yes, the MC9S08QE4CLCR shares identical 32-pin QFN pinout and peripheral mapping with MC9S08QE8CLCR and MC9S08QE32CLCR per Freescale's MC9S08QE8 Series Data Sheet Rev. 8. All three devices use case number 2078-01 and support identical alternate functions on each pin - enabling drop-in replacement where flash/RAM requirements allow.
MC9S08QE4CLCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-LQFP
- Series:
- S08
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SCI, SPI
- Peripherals:
- LVD, PWM, WDT
- Number of I/O:
- 26
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S08QE4CLCR FAQ
1.How can I place an order for MC9S08QE4CLCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S08QE4CLCR 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 MC9S08QE4CLCR reliable?
The price and inventory of MC9S08QE4CLCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S08QE4CLCR is usually 5 days.
3.What payment methods are accepted for MC9S08QE4CLCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S08QE4CLCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S08QE4CLCR?
MC9S08QE4CLCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S08QE4CLCR 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 MC9S08QE4CLCR?
For technical support, including MC9S08QE4CLCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S08QE4CLCR requirements.
6.How does Aetrix verify that MC9S08QE4CLCR is sourced from the original manufacturer or authorized distributors?
All MC9S08QE4CLCR 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 MC9S08QE4CLCR meets industry standards.
7.What is the process for return or replacement of MC9S08QE4CLCR?
All MC9S08QE4CLCR units undergo pre-shipment inspection (PSI). If there is an issue with MC9S08QE4CLCR, 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 MC9S08QE4CLCR part is unused and in its original packaging.
Return procedure for MC9S08QE4CLCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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