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NXP Semiconductors MCF51QE128CLH
- Part No.:
- MCF51QE128CLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MCF51QE128CLH.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:152
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Product details
Overview
MCF51QE128CLH from NXP Semiconductors (formerly Freescale) is a 32-bit ColdFire V1 microcontroller with 128 KB flash, 8 KB RAM, 70 GPIOs, 24-channel 12-bit ADC, dual analog comparators, and integrated RTC - designed for low-power industrial control, sensor interface, and embedded automation applications operating from 1.8 V to 3.6 V.
For engineers reviewing the MCF51QE128CLH datasheet, MCF51QE128CLH pinout, MCF51QE128CLH application, or MCF51QE128CLH equivalent, key selection criteria include its stop3-mode current (0.8–1.3 µA), 50.33 MHz max CPU frequency at >2.4 V, 2.5 µs ADC conversion time, dual SCI with LIN support, and 80-pin LQFP package with Rapid GPIO capability.
Technical Context
The MCF51QE128CLH implements ColdFire Instruction Set Revision C (ISA_C) with 0.94 Dhrystone MIPS/MHz performance from internal RAM and supports up to 30 peripheral interrupts. Its power management includes two stop modes and a reduced-power wait mode, with peripheral clock gating and a 1 kHz low-power oscillator enabling wake-up from stop3.
It integrates dual I²C (up to 100 kbps), dual SPI (full-duplex or single-wire), dual SCI with LIN master/slave break generation, six-channel TPM plus two 3-channel TPMs, and an on-chip RTC with external clock input and free-running 1 kHz oscillator - all functional in stop3 mode alongside the 12-bit ADC and ACMPs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ColdFire V1 (ISA_C), 32-bit, up to 50.33 MHz at VDD >2.4 V - enables deterministic real-time control with high code density |
| Flash / RAM | 128 KB flash (programmable/erasable over full voltage/temp), 8 KB RAM - sufficient for firmware + data logging in standalone edge nodes |
| ADC | 24-channel, 12-bit, 2.5 µs conversion time, internal bandgap reference, temp sensor (1.7 mV/°C) - supports precision analog sensing without external references |
| Low-Power Modes | Stop2 (0.6–0.8 µA), Stop3 (0.8–1.3 µA), 6 µs wake-up - enables battery-powered operation for years in periodic-sense applications |
| Peripherals | Dual SCI (LIN-capable), dual I²C, dual SPI, 6+3+3-channel TPMs, RTC, two ACMPs - provides flexible serial comms and timing control for multi-sensor systems |
| Supply Range | 1.8 V to 3.6 V operation, with VLVDL = 1.80–1.99 V and VLVDH = 2.11–2.27 V - ensures robust brown-out protection across industrial temperature range (–40°C to +85°C) |
| Package | 80-pin LQFP (14 mm², Case 917A) - standard surface-mount footprint compatible with automated assembly and thermal management |
Pinout & Package
80-pin LQFP (Case 917A, 14 mm²) with exposed pad not specified; pins include 70 GPIOs (16 Rapid GPIO), 24 ADC inputs, dual SCI/I²C/SPI interfaces, 6 TPM channels, RTC, ACMPs, BKGD debug, and dedicated reset/IRQ lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PTA4/BKGD/MS | Single-wire background debug / master select | Enables in-circuit debugging and programming without JTAG; output-only port function |
| PTA5/IRQ/RESET | Interrupt request / hardware reset input | Active-low reset with configurable polarity; serves as primary system fault recovery path |
| PTB6/XTAL & PTB7/EXTAL | Crystal oscillator input/output | Supports 1–16 MHz crystal or ceramic resonator for precise main clock source |
| PTC0–PTC7/RGPIO8–15 | Rapid GPIO bank (CPU local bus) | High-speed set/clear/toggle operations without read-modify-write latency |
| PTD0–PTD7/KBI2P0–7 | Keyboard interrupt inputs | 16-key matrix scanning with programmable polarity and hysteresis |
| PTE0–PTE7/RGPIO0–7 | Rapid GPIO bank (TPM3CLK, SPI1, SS1) | Provides fast I/O and peripheral signal routing including TPM3 clock source |
Key Features
| Feature | Design Value |
|---|---|
| Stop3 Mode Power Management | Sub-µA operation (0.8–1.3 µA) with RTC, ADC, ACMPs, and selected peripherals active - extends battery life in intermittent-sensing systems |
| Integrated Analog Subsystem | 24-channel 12-bit ADC + dual ACMPs + internal 1.17 V bandgap reference + 1.7 mV/°C temp sensor - eliminates need for external analog front-end components |
| LIN-Capable Serial Interfaces | Dual SCI with extended break generation/detection and wake-on-edge - enables direct integration into automotive body electronics networks |
| Security Circuitry | Flash block protection and RAM access prevention - protects firmware IP and sensitive runtime data from unauthorized readout |
| Rapid GPIO Architecture | 16-bit shadowed GPIO on CPU local bus with atomic set/clear/toggle registers - eliminates race conditions in real-time I/O control |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
Use Scenario: Remote environmental monitoring unit with temperature, humidity, and pressure sensors, transmitting data via UART-to-LoRa gateway every 10 minutes. IC Role / Device Role / Timing Role: Central controller executing sensor acquisition, calibration, low-power scheduling, and serial protocol framing using RTC and stop3 wake-up. Use Value: 0.8 µA stop3 current and 2.5 µs ADC enable >5-year battery life on coin cell; integrated bandgap reference ensures stable measurements across –40°C to +85°C. | 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 message parsing, PWM motor control (TPM), and analog switch monitoring (ACMP/ADC). Use Value: Dual SCI with LIN break detection allows seamless integration into vehicle network; 6-channel TPM delivers independent motor timing without external timers. |
| Smart Energy Meter Interface | Programmable Logic Controller (PLC) I/O Expander |
Use Scenario: DIN-rail mounted sub-meter collecting CT clamp current, voltage, and kWh data, communicating via RS-485 (SCI-driven) to gateway. IC Role / Device Role / Timing Role: Data acquisition engine with 24-channel ADC sampling multiple phases, RTC-based time-stamping, and isolated serial interface. Use Value: 24 ADC channels support simultaneous multi-phase sampling; internal 1.17 V bandgap reference ensures ±0.5% measurement accuracy over voltage/temp range. | Use Scenario: Modular I/O base accepting digital input cards, driving solenoids and relays via PWM and discrete outputs in factory automation cabinet. IC Role / Device Role / Timing Role: Local intelligence hub managing KBI matrix inputs, Rapid GPIO outputs, and synchronized PWM (TPM) for proportional valve control. Use Value: 70 GPIOs with configurable drive strength and slew rate accommodate diverse field devices; Rapid GPIO enables <100 ns output toggling for safety-critical strobes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Kinetis KL26Z128VLH | ARM Cortex-M0+, 48 MHz, 128 KB flash, 16 KB RAM, 16-bit ADC, no integrated RTC oscillator - requires external 32.768 kHz crystal | Lacks stop3-equivalent ultra-low-power mode (lowest stop mode ~1.5 µA); no built-in LIN support | Choose for ARM ecosystem compatibility and USB device support; avoid when sub-µA stop current or LIN is mandatory |
| S9KEAZ128AMLH | ColdFire-derived S08 core, 40 MHz, 128 KB flash, 16 KB RAM, 12-bit ADC, 1.2 µA stop mode - no Rapid GPIO, limited peripheral count (single SCI/I²C) | Lower peripheral integration (no dual TPM banks, no ACMPs); simplified interrupt structure limits real-time responsiveness | Choose for cost-sensitive, lower-complexity control tasks; avoid when 24 ADC channels, dual LIN, or Rapid GPIO atomic ops are required |
Compared with Kinetis KL26Z128VLH and S9KEAZ128AMLH, the MCF51QE128CLH delivers superior ultra-low-power operation (0.8 µA stop3), native LIN support, and deterministic Rapid GPIO - making it optimal for battery-powered sensor hubs and automotive body electronics where timing predictability and minimal sleep current are critical.
Availability
MCF51QE128CLH is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive body control modules, smart energy meter interfaces, and PLC I/O expanders requiring stable component supply, long-term lifecycle support, and verified qualification for extended temperature operation.
Supply support for MCF51QE128CLH 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, connected, and intelligent solutions for automotive, industrial, IoT, mobile, and communication infrastructure markets.
The MCF51QE128CLH belongs to NXP's ColdFire Qorivva family, engineered for energy-efficient, real-time embedded control in harsh environments - emphasizing ultra-low-power operation, integrated analog peripherals, and robust debug capabilities for industrial and automotive applications.
FAQ
What is the maximum operating frequency of the MCF51QE128CLH and under what voltage conditions?
The MCF51QE128CLH achieves up to 50.33 MHz when VDD exceeds 2.4 V, 40 MHz above 2.1 V, and 20 MHz above 1.8 V - all across the full industrial temperature range (–40°C to +85°C). This voltage-frequency scaling allows dynamic power optimization while maintaining real-time determinism. The MCF51QE128CLH uses ColdFire V1 ISA_C architecture with 0.94 Dhrystone MIPS/MHz performance from internal RAM.
Does the MCF51QE128CLH support LIN communication, and how is it implemented?
Yes, the MCF51QE128CLH supports LIN communication via its dual SCI modules, each featuring extended break generation (for master) and extended break detection (for slave), plus wake-up on active edge. This enables full LIN 2.1/2.2 compliance without external transceivers. The MCF51QE128CLH integrates dedicated hardware for break timing and sync field handling, reducing CPU overhead during frame transmission and reception.
What are the lowest power consumption modes available on the MCF51QE128CLH, and what peripherals remain active in those modes?
The MCF51QE128CLH offers Stop2 (0.6–0.8 µA) and Stop3 (0.8–1.3 µA) modes. In Stop3, the RTC, 12-bit ADC, dual analog comparators, and selected peripherals (e.g., SCI, I²C) can remain active using the very low power oscillator. Wake-up occurs in 6 µs. The MCF51QE128CLH also supports peripheral clock gating to disable unused modules, further reducing current draw while retaining functionality in active subsystems.
How many ADC channels does the MCF51QE128CLH have, and what is its conversion speed and reference configuration?
The MCF51QE128CLH features a 24-channel, 12-bit successive-approximation ADC with 2.5 µs conversion time. It includes an internal bandgap reference (1.17 V, factory-trimmed), a 1.7 mV/°C temperature sensor channel, and support for external VREFH/VREFL inputs. The ADC operates fully in stop3 mode, enabling low-power periodic sampling without waking the CPU - a key capability leveraged in the MCF51QE128CLH's sensor interface applications.
What debug interface does the MCF51QE128CLH provide, and what capabilities does it support?
The MCF51QE128CLH provides a single-wire background debug (BKGD) interface compliant with Freescale/NXP BDM specification. It supports full non-intrusive debugging, including halt/resume, register and memory access, four PC breakpoints, two address breakpoints (with optional data match), and a 64-entry trace buffer with programmable start/stop triggers. This interface requires only one pin (PTA4/BKGD/MS) and enables development without JTAG header space - a defining feature of the MCF51QE128CLH's compact design.
MCF51QE128CLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- MCF51QE
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- Coldfire V1
- Core Size:
- 32-Bit Single-Core
- Speed:
- 50MHz
- Connectivity:
- I2C, SCI, SPI
- Peripherals:
- LVD, PWM, WDT
- Number of I/O:
- 54
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 20x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MCF51QE128CLH FAQ
1.How can I place an order for MCF51QE128CLH through Aetrix?
Please submit a Request for Quotation (RFQ) for MCF51QE128CLH 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 MCF51QE128CLH reliable?
The price and inventory of MCF51QE128CLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCF51QE128CLH is usually 5 days.
3.What payment methods are accepted for MCF51QE128CLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCF51QE128CLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCF51QE128CLH?
MCF51QE128CLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCF51QE128CLH 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 MCF51QE128CLH?
For technical support, including MCF51QE128CLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCF51QE128CLH requirements.
6.How does Aetrix verify that MCF51QE128CLH is sourced from the original manufacturer or authorized distributors?
All MCF51QE128CLH 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 MCF51QE128CLH meets industry standards.
7.What is the process for return or replacement of MCF51QE128CLH?
All MCF51QE128CLH units undergo pre-shipment inspection (PSI). If there is an issue with MCF51QE128CLH, 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 MCF51QE128CLH part is unused and in its original packaging.
Return procedure for MCF51QE128CLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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