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NXP Semiconductors MC68EC000AA10
- Part No.:
- MC68EC000AA10
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 64-QFP
- Datasheet:
-
MC68EC000AA10.pdf
- Description:
- IC MPU M680X0 10MHZ 64QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,390
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Product details
Overview
MC68EC000AA10 from Motorola (now NXP/Freescale) is a 32-bit HCMOS embedded microprocessor with statically selectable 8-/16-bit data bus, 16-Mbyte addressing range, and full M68000 architecture object-code compatibility. It operates at up to 10 MHz, supports memory-mapped I/O and 14 addressing modes, and targets cost-sensitive industrial controllers and legacy embedded systems requiring 32-bit performance at 8-bit price points.
For engineers reviewing the MC68EC000AA10 datasheet, MC68EC000AA10 pinout, MC68EC000AA10 application, or MC68EC000AA10 equivalent, key selection criteria include its static design enabling clock gating, low-power HCMOS operation, 64-pin QFP/TQFP package compatibility, and direct software migration path from MC68000-family codebases.
Technical Context
The MC68EC000AA10 implements the full M68000 32-bit instruction set architecture with 16 general-purpose 32-bit registers and a 24-bit address bus (A23–A0), delivering 16-Mbyte linear addressing. Its internal 32-bit ALU and register file execute instructions in 1–3 bus cycles depending on addressing mode and operand size.
Bus interface logic supports asynchronous memory and peripheral access via AS, R/W, LDS/UDS, DTACK, and BERR signals. The MODE pin selects 8- or 16-bit data transfer width (D7–D0 or D15–D0), while FC0–FC2 encode bus cycle function codes for precise external controller synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Clock Frequency | 10 MHz - Determines maximum instruction throughput and synchronous peripheral timing margins. |
| Data Bus Width | Statically selectable 8- or 16-bit - Enables flexible memory/peripheral interfacing without glue logic redesign. |
| Address Range | 16 Mbytes (A23–A0) - Supports up to 16 MB of linear memory space for code and data. |
| Supply Voltage | 5.0 V ±5% - Specifies single-rail operation compatible with legacy 5V TTL/CMOS systems. |
| Power Dissipation | 10 mA typical at 10 MHz - Enables use in thermally constrained embedded enclosures without forced cooling. |
| Instruction Set | Fully M68000-compatible - Guarantees binary-level software portability from MC68000, MC68HC000, and MC68SEC000. |
| Interrupt Levels | Three-level IPL0–IPL2 - Provides hardware prioritization for real-time event handling in control applications. |
Pinout & Package
MC68EC000AA10 is housed in a 64-lead plastic QFP (FU suffix) or TQFP (PB suffix) package, measuring 17.2 mm × 17.2 mm (QFP) or 12.0 mm × 12.0 mm (TQFP), with 0.65 mm lead pitch. Pinout matches MC68SEC000 and supports identical PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK | System clock input | Accepts single-ended TTL/CMOS clock; synchronizes all internal operations and bus cycles. |
| RESET | Asynchronous reset input | Drives processor into known state; requires ≥10 clock cycles minimum pulse width per spec. |
| HALT | Processor halt control | Stops instruction execution while preserving register and bus state; used for debug or power management. |
| MODE | Data bus width select | High = 16-bit (D15–D0 active); Low = 8-bit (D7–D0 active); sets bus interface configuration at power-up. |
| AS | Address strobe output | Indicates valid address on A23–A0; enables latching in external memory/peripheral address decoders. |
| R/W | Read/write direction control | High = read cycle; Low = write cycle; drives bidirectional data bus direction logic. |
| LDS/UDS | Lower/upper data strobe | Enables byte-lane access during 16-bit transfers; critical for mixed-width memory subsystems. |
| DTACK | Data transfer acknowledge | Externally generated handshake signal confirming memory/peripheral readiness; extends bus cycles as needed. |
| BERR | Bus error reporting | Asynchronous input signaling invalid memory access or peripheral timeout; triggers exception processing. |
| IPL0–IPL2 | Interrupt priority level inputs | Encode three-level interrupt request; sampled on falling clock edge to determine vector offset. |
| FC0–FC2 | Function code outputs | Encode bus cycle type (data read/write, instruction fetch, etc.) for external bus controller arbitration. |
| BR/BG | Bus request/grant control | Two-wire arbitration scheme allows DMA masters to seize bus control without dedicated BG pin. |
Key Features
| Feature | Design Value |
|---|---|
| Statically selectable data bus | Reduces system BOM cost by eliminating bus-width translation logic in 8-bit peripheral designs. |
| Full M68000 object-code compatibility | Enables reuse of existing MC68000 firmware assets without recompilation or modification. |
| Memory-mapped I/O architecture | Simplifies peripheral driver development by unifying memory and I/O address spaces under one addressing model. |
| 14 addressing modes including auto-increment/decrement | Minimizes instruction count for data structure traversal and buffer management in C-compiled code. |
| Two-wire bus arbitration (BR/BG) | Supports multi-master systems using only two pins, reducing PCB routing complexity versus three-wire schemes. |
Applications
| Industrial PLC Controller | Legacy Medical Instrumentation |
|---|---|
Use Scenario: Standalone programmable logic controller executing ladder logic and analog I/O scanning in factory automation cabinets. IC Role / Device Role / Timing Role: Central execution unit managing deterministic scan cycles, serial communication stacks, and real-time I/O updates. Use Value: 16-Mbyte addressing supports large configuration databases and firmware overlays; 10 MHz clock ensures sub-millisecond scan times. | Use Scenario: Embedded controller in electrocardiogram (ECG) machines requiring FDA-cleared firmware and long-term component availability. IC Role / Device Role / Timing Role: Real-time signal acquisition processor coordinating ADC sampling, digital filtering, and display refresh. Use Value: M68000 instruction set enables certified C compiler toolchains; 5V operation matches legacy analog front-end voltage rails. |
| Point-of-Sale Terminal | Avionics Maintenance Interface |
Use Scenario: Fixed-function retail terminal with thermal printer, barcode scanner, and secure payment module integration. IC Role / Device Role / Timing Role: Host controller managing peripheral handshaking, encrypted transaction processing, and local display rendering. Use Value: Statically selectable 8-bit bus reduces interface complexity with legacy parallel printers and scanners. | Use Scenario: Portable diagnostic tool connecting to aircraft flight control computers via ARINC 429 or MIL-STD-1553B buses. IC Role / Device Role / Timing Role: Protocol bridge processor converting serial maintenance commands to avionics bus transactions. Use Value: Three-level interrupt prioritization handles time-critical bus arbitration and fault reporting simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar embedded microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68SEC000RC16 | Static CMOS design; supports 3.3V/5V operation; 0.5 µA sleep current; identical 64-pin QFP/TQFP footprint. | Targeted at battery-powered portable equipment requiring ultra-low standby power. | Select MC68SEC000RC16 when power budget mandates sub-1 µA quiescent current and clock gating is required. |
| MC68HC000P12 | HCMOS implementation; fixed 16-bit data bus; no MODE pin; 12 MHz max clock; 48-pin DIP package. | Designed for space-constrained board layouts where 64-pin QFP is impractical and 8-bit bus flexibility is unnecessary. | Choose MC68HC000P12 for retrofitting into legacy 48-pin sockets or when 12 MHz performance justifies fixed 16-bit interface. |
Compared with MC68EC000AA10, MC68SEC000RC16 adds static low-power capability but requires external circuitry for clock stop/start sequencing, while MC68HC000P12 trades bus flexibility and package compatibility for higher clock speed and smaller footprint-making each suitable for distinct power, layout, and upgrade-path constraints.
Availability
MC68EC000AA10 is available at Aetrix Electronics and suitable for industrial PLC controllers, legacy medical instrumentation, point-of-sale terminals, and avionics maintenance interfaces requiring stable component supply across extended product lifecycles.
Supply support for MC68EC000AA10 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 the M68000 family, establishing foundational 32-bit embedded computing architecture in the 1980s.
The MC68EC000 belongs to the Economical Controller line, designed specifically to deliver full M68000 software compatibility and 32-bit performance at cost points competitive with 8-bit microcontrollers for industrial and consumer embedded systems.
FAQ
What is the maximum operating frequency of the MC68EC000AA10?
The MC68EC000AA10 is rated for a maximum clock frequency of 10 MHz. This specification is guaranteed across the commercial temperature range (0°C to +70°C) and 5.0 V ±5% supply voltage. At this speed, the processor achieves typical instruction execution times of 1–3 bus cycles depending on addressing mode complexity and operand size. Exceeding 10 MHz may result in timing violations, especially in asynchronous bus cycles dependent on DTACK assertion.
Does the MC68EC000AA10 support 3.3V operation?
No, the MC68EC000AA10 is specified only for 5.0 V ±5% operation. Unlike the pin-compatible MC68SEC000, which supports dual-voltage (3.3V/5V) operation, the MC68EC000AA10 uses HCMOS technology optimized for 5V TTL-level signaling. Its DC electrical specifications-including VIH (2.0 V min), VOL (0.5 V max), and output drive strength-are defined exclusively at 5V, and operation outside this range risks functional failure or accelerated device degradation.
How does the MODE pin configure the data bus on the MC68EC000AA10?
The MODE pin on the MC68EC000AA10 statically selects between 8-bit and 16-bit data bus operation: when MODE is high, D15–D0 are active for full 16-bit transfers; when MODE is low, only D7–D0 are driven, and D15–D8 are undefined. This configuration is sampled at reset and remains fixed until the next reset event. External pull-up or pull-down resistors must be used to ensure a defined logic level during power-up to prevent bus contention or undefined behavior.
Is the MC68EC000AA10 pin-compatible with the MC68SEC000?
Yes, the MC68EC000AA10 is pin-for-pin compatible with the MC68SEC000 in both 64-lead QFP (FU) and TQFP (PB) packages. Signal assignments for CLK, RESET, AS, R/W, LDS/UDS, DTACK, BERR, IPL0–IPL2, FC0–FC2, BR, BG, and all address/data lines match exactly. However, functional differences exist: MC68SEC000 adds static low-power mode and 3.3V support, while MC68EC000AA10 lacks clock-stop capability and operates at 5V only.
What package options are available for the MC68EC000AA10?
The MC68EC000AA10 is offered in two surface-mount package variants: 64-lead plastic Quad Flat Pack (QFP, FU suffix) with 17.2 mm × 17.2 mm body and 0.65 mm lead pitch, and 64-lead Thin Quad Flat Pack (TQFP, PB suffix) with 12.0 mm × 12.0 mm body and same 0.65 mm pitch. Both packages share identical pinout and thermal characteristics, allowing direct PCB footprint interchangeability. No through-hole (DIP) variant exists for this specific speed grade.
MC68EC000AA10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-QFP
- Series:
- M680x0
- Packaging:
- Tray
- Product Status:
- Obsolete
- Core Processor:
- EC000
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 10MHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- -
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 5.0V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-QFP (14x14)
- Additional Interfaces:
- -
MC68EC000AA10 FAQ
1.How can I place an order for MC68EC000AA10 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68EC000AA10 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 MC68EC000AA10 reliable?
The price and inventory of MC68EC000AA10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68EC000AA10 is usually 5 days.
3.What payment methods are accepted for MC68EC000AA10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68EC000AA10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68EC000AA10?
MC68EC000AA10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68EC000AA10 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 MC68EC000AA10?
For technical support, including MC68EC000AA10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68EC000AA10 requirements.
6.How does Aetrix verify that MC68EC000AA10 is sourced from the original manufacturer or authorized distributors?
All MC68EC000AA10 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 MC68EC000AA10 meets industry standards.
7.What is the process for return or replacement of MC68EC000AA10?
All MC68EC000AA10 units undergo pre-shipment inspection (PSI). If there is an issue with MC68EC000AA10, 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 MC68EC000AA10 part is unused and in its original packaging.
Return procedure for MC68EC000AA10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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