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NXP Semiconductors MC68SEC000AE16
- Part No.:
- MC68SEC000AE16
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 64-LQFP
- Datasheet:
-
MC68SEC000AE16.pdf
- Description:
- IC MPU M680X0 16MHZ 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,657
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Product details
Overview
MC68SEC000AE16 from Motorola (now NXP/Freescale) is a static 32-bit embedded microprocessor designed for ultra-low-power battery-operated systems. It delivers 16 MHz operation at 3.3V or 5V, consumes only 0.5 µA in static standby mode, features a 24-bit address bus (16 MB addressing), and supports 8-/16-bit data bus configuration via MODE pin - enabling use in portable measuring equipment and handheld consumer devices.
For engineers reviewing the MC68SEC000AE16 datasheet, MC68SEC000AE16 pinout, MC68SEC000AE16 application, or MC68SEC000AE16 equivalent, key selection considerations include its pin-for-pin compatibility with MC68EC000, object-code compatibility across the M68000 Family, static clock-stop capability, dual-voltage support, and QFP/TQFP package options with validated 64-pin signal mapping.
Technical Context
The MC68SEC000AE16 implements a fully static HCMOS version of the M68000 architecture, allowing clock suspension without data loss. Its bus controller supports asynchronous transfers using AS, R/W, UDS/LDS, and DTACK, with full interrupt handling across seven priority levels including nonmaskable Level 7 and autovectoring via AVEC.
It features eight 32-bit data registers and eight 32-bit address registers, 14 addressing modes, memory-mapped I/O, and five native data types. The FC0–FC2 function code outputs indicate supervisor/user mode and address space during active address strobe cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | M68000-family 32-bit static CPU with 56 instructions and 14 addressing modes |
| Max Clock Frequency | 16 MHz - defines maximum instruction throughput and real-time response latency |
| Supply Voltage | 3.3 V or 5.0 V - enables direct integration into mixed-voltage legacy or low-power systems |
| Standby Current | 0.5 µA typical at 3.3 V - enables multi-year battery life in always-on monitoring applications |
| Address Bus Width | 24-bit (A23–A0) - supports up to 16 MB linear memory space without external banking logic |
| Data Bus Width | Configurable 8- or 16-bit (D15–D0) - reduces PCB trace count and power in cost-sensitive designs |
| Interrupt Levels | 7 prioritized levels with IPL0–IPL2 inputs and nonmaskable Level 7 - supports deterministic real-time event handling |
Pinout & Package
MC68SEC000AE16 is packaged in a 64-lead plastic Quad Flat Pack (QFP) with 0.8 mm lead pitch and 14.0 mm × 14.0 mm body size, optimized for surface-mount assembly and thermal management in compact industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A23 | Address Output | 24-bit unidirectional address bus; A3–A1 encode interrupt level during vector fetch |
| D0–D15 | Data I/O | Bidirectional 16-bit data path; 8-bit mode enabled by MODE pin assertion |
| AS | Address Strobe | Active-low signal indicating valid address on A-bus; synchronizes external memory access timing |
| R/W | Read/Write Control | Directs data flow direction on D-bus; determines memory or peripheral read vs. write cycle |
| UDS/LDS | Upper/Lower Data Strobe | Byte-select controls for 16-bit transfers; enables partial-word writes without read-modify-write |
| DTACK | Data Transfer Acknowledge | External handshake signal confirming completion of asynchronous bus cycle |
| IPL0–IPL2 | Interrupt Priority Level Input | 3-bit encoded input selecting one of seven maskable interrupt levels (0–6); Level 7 is nonmaskable |
| AVEC | Autovector Enable | Enables automatic vector address generation based on IPL state during interrupt acknowledge cycle |
Key Features
| Feature | Design Value |
|---|---|
| Static Core Design | Allows indefinite clock suspension while preserving register and internal state - eliminates dynamic power loss during idle periods |
| Pin-for-Pin Compatibility | Direct drop-in replacement for MC68EC000 in QFP packages - no PCB redesign required for legacy system upgrades |
| M68000 Family Code Compatibility | Full object-code compatibility ensures existing firmware and toolchains (assemblers, debuggers, RTOS) operate unchanged |
| Dual-Voltage Operation | Supports both 3.3 V and 5.0 V supply rails - simplifies migration from older 5 V systems or integration into modern low-voltage subsystems |
| Configurable Data Bus | MODE pin selects 8- or 16-bit data interface - balances performance, cost, and board layout complexity per application need |
Applications
| Portable Medical Sensors | Industrial Handheld Testers |
|---|---|
Use Scenario: Battery-powered blood glucose meters and pulse oximeters requiring multi-year operation on coin-cell batteries. IC Role / Device Role / Timing Role: Main system controller executing sensor acquisition, calibration, display, and data logging with periodic wake-up from static sleep. Use Value: 0.5 µA standby current extends battery life beyond 5 years; static architecture guarantees deterministic resume timing after wake-up interrupts. |
Use Scenario: Ruggedized field instruments for voltage/current/resistance measurement with local LCD display and serial communication. IC Role / Device Role / Timing Role: Embedded host processor managing analog front-end control, user interface, and RS-232/RS-485 interface timing. Use Value: 16 MHz execution speed supports real-time sampling and calculation; 24-bit addressing allows expansion with external flash and SRAM. |
| Legacy Industrial HMI Panels | Embedded Game Consoles |
Use Scenario: Retrofitting aging PLC operator interfaces with modern low-power controllers while retaining existing 5 V backplane and QFP footprint. IC Role / Device Role / Timing Role: Drop-in MCU replacement maintaining identical pinout and bus protocol for seamless hardware integration. Use Value: Pin-for-pin compatibility with MC68EC000 avoids PCB rework; 3.3/5 V dual-rail support preserves compatibility with legacy 5 V peripherals. |
Use Scenario: Low-cost handheld gaming devices requiring deterministic frame timing, sprite rendering, and audio playback from ROM. IC Role / Device Role / Timing Role: Central game engine executing fixed-interval scanline-based video and audio generation using precise bus timing. Use Value: Asynchronous bus control (AS/R/W/DTACK) enables predictable memory access latency; 14 addressing modes simplify sprite coordinate math in assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68EC000RC16 | Non-static 16 MHz variant; higher active current (~35 mA at 5 V); no sub-µA standby mode | Lacks low-power sleep capability; unsuitable for battery-only operation | Select when legacy 5 V design requires identical timing but power budget permits higher quiescent draw |
| MC68332ACPV16 | Integrated 32-bit CPU32 core + on-chip timers, QSM, and 8 KB RAM; 16 MHz; 5 V only | Higher integration reduces external component count but increases BOM cost and footprint | Select when system-level integration (e.g., motor control, CAN-like messaging) justifies added complexity over discrete peripheral design |
Compared with MC68EC000RC16 and MC68332ACPV16, the MC68SEC000AE16 uniquely balances ultra-low static power, M68000 software continuity, and minimal external component requirements - making it optimal for cost-sensitive, battery-constrained embedded controllers where architectural simplicity and long-term supply stability are critical.
Availability
MC68SEC000AE16 is available at Aetrix Electronics and suitable for portable medical sensors, industrial handheld testers, and legacy HMI panel retrofits requiring stable component supply and long-lifecycle support.
Supply support for MC68SEC000AE16 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
Motorola Semiconductor (now part of NXP Semiconductors via Freescale acquisition) pioneered high-reliability embedded processors for industrial and automotive markets.
The MC68SEC000AE16 belongs to the M68000 Family static microprocessor line, engineered specifically for ultra-low-power, cost-sensitive 32-bit embedded control in battery-operated and space-constrained applications.
FAQ
What is the operating voltage range supported by the MC68SEC000AE16?
The MC68SEC000AE16 operates across two nominal supply rails: 3.3 V ±10% and 5.0 V ±5%. This dual-voltage capability allows direct integration into both modern low-power systems and legacy 5 V designs without level-shifting circuitry. The device maintains full functionality and timing specifications across both ranges, with standby current specified at 0.5 µA typical under 3.3 V conditions.
Is the MC68SEC000AE16 pin-compatible with the MC68EC000?
Yes, the MC68SEC000AE16 is explicitly designed as a pin-for-pin compatible replacement for the MC68EC000 in the 64-lead plastic QFP package. Signal assignments, power/ground pin locations, and timing interface definitions match identically, enabling drop-in upgrades in existing PCB layouts. This compatibility extends to all control, address, data, and interrupt signals shown in the official package diagram.
Does the MC68SEC000AE16 support 8-bit or 16-bit data bus operation?
The MC68SEC000AE16 supports configurable data bus width via the MODE pin: asserting MODE high selects 16-bit operation (D15–D0 active), while MODE low configures 8-bit mode (D7–D0 only). This flexibility allows designers to optimize trace count, power, and external memory interface complexity without changing the core processor or software architecture.
What is the minimum current consumption of the MC68SEC000AE16 in standby mode?
The MC68SEC000AE16 draws only 0.5 µA typical current in static standby mode at 3.3 V, as confirmed in the official product brief. This ultra-low quiescent draw is achieved through its fully static HCMOS design, which retains full internal register state with the clock stopped - enabling multi-year battery life in applications like portable medical monitors and remote sensors.
Which development tools are compatible with the MC68SEC000AE16?
All third-party development tools qualified for the MC68EC000 - including assemblers, C compilers, in-circuit emulators, and debuggers - are directly compatible with the MC68SEC000AE16 due to full object-code and hardware compatibility. Motorola's High Performance Embedded Systems Source Catalog (BR729/D Rev. 4) lists validated toolchain vendors supporting the MC68SEC000AE16 without modification.
MC68SEC000AE16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- M680x0
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Core Processor:
- EC000
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 16MHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- -
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 3.3V, 5.0V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (10x10)
- Additional Interfaces:
- -
MC68SEC000AE16 FAQ
1.How can I place an order for MC68SEC000AE16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68SEC000AE16 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 MC68SEC000AE16 reliable?
The price and inventory of MC68SEC000AE16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68SEC000AE16 is usually 5 days.
3.What payment methods are accepted for MC68SEC000AE16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68SEC000AE16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68SEC000AE16?
MC68SEC000AE16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68SEC000AE16 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 MC68SEC000AE16?
For technical support, including MC68SEC000AE16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68SEC000AE16 requirements.
6.How does Aetrix verify that MC68SEC000AE16 is sourced from the original manufacturer or authorized distributors?
All MC68SEC000AE16 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 MC68SEC000AE16 meets industry standards.
7.What is the process for return or replacement of MC68SEC000AE16?
All MC68SEC000AE16 units undergo pre-shipment inspection (PSI). If there is an issue with MC68SEC000AE16, 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 MC68SEC000AE16 part is unused and in its original packaging.
Return procedure for MC68SEC000AE16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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