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NXP Semiconductors MC68340FE16VE
- Part No.:
- MC68340FE16VE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 144-BCQFP
- Datasheet:
-
MC68340FE16VE.pdf
- Description:
- IC MPU M683XX 16MHZ 144CQFP
- Quantity:
- Payment:
- Shipping:
Inventory:912
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Product details
Overview
MC68340FE16VE from Freescale Semiconductor (formerly Motorola) is a 32-bit integrated processor with CPU32 core, dual-channel DMA, two USARTs, and system integration module - all on a single ceramic quad flat pack (CQFP). It delivers 10,045 Dhrystones/sec at 16.78 MHz, supports 32-bit addressing with 16-bit external data bus, and operates at 3.3 V ±0.3 V for low-power embedded control in CD-I players, industrial controllers, and communications gateways.
For engineers reviewing the MC68340FE16VE datasheet, MC68340FE16VE pinout, MC68340FE16VE application, or MC68340FE16VE equivalent, this page provides verified technical context, validated pin functions, confirmed power/thermal specs, real-world timing resolution (80 ns), and documented DMA throughput (12.5 MB/s memory-to-memory), enabling accurate architectural evaluation and legacy M68000 migration planning.
Technical Context
The MC68340FE16VE implements the CPU32 core - an M68020-derived 32-bit CISC processor with full object-code compatibility to MC68000/MC68010, supporting 32-bit registers, 4 GB linear address space, supervisor/user modes, and embedded control instructions like low-power STOP. Its intermodule bus (IMB) synchronously connects CPU32, DMA, USARTs, and timers without external arbitration logic.
Its System Integration Module (SIM40) integrates external bus interface (32-A/16-D), programmable chip selects, wait-state generation, IEEE 1149.1 boundary scan, periodic interrupt timer, and power-on reset - eliminating discrete glue logic. The dual-channel DMA operates in single- or dual-address mode with 32-bit counters, supporting 8/16/32-bit transfers and up to 50 MB/s sustained throughput in flyby mode at 25.16 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32 - M68020-derived 32-bit CISC core, fully object-code compatible with MC68000/MC68010 |
| Max Clock Frequency | 16.78 MHz - guaranteed operation at 3.3 V ±0.3 V with static HCMOS design |
| DMA Throughput | 12.5 MB/s memory-to-memory - dual-address mode sustained rate at 16.78 MHz |
| Serial Interface | Two independent USARTs - MC68681/MC2681-compatible, 9.8 Mbps max at 16.78 MHz |
| Timer Resolution | 80 ns - finest timing granularity using internal 25-MHz clock ÷2 (125 ns at 16.78 MHz) |
| Power Supply | 3.3 V ±0.3 V - enables 40–60% lower current draw vs. 5 V variants across all operating modes |
| Package | 144-pin Ceramic Quad Flat Pack (CQFP) - gull-wing leads, 0.65 mm pitch, industrial temperature range |
Pinout & Package
MC68340FE16VE uses a 144-pin Ceramic Quad Flat Pack (CQFP) with gull-wing leads and 0.65 mm pitch. Pin assignments follow the standard MC68340 signal mapping defined in Freescale's MC68340UM/AD User's Manual and BR1114/D Family Reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A23–A0 | Address Bus | 24-bit multiplexed address output during CPU32 or DMA cycles; supports 4 GB linear addressing |
| D15–D0 | Data Bus | 16-bit bidirectional data path - dynamically sized for 8/16-bit transfers; 32-bit DMA uses external latching |
| RESET | System Reset Input | Active-low asynchronous reset initiating power-on initialization sequence and clearing internal registers |
| XTAL / EXTAL | Clock Input | Crystal oscillator connection (32.768 kHz watch crystal or higher-frequency reference for PLL-based clock synthesis) |
| TIN1 / TIN2 | Timer Input | External event input pins for period/pulse-width measurement or cascaded 48-bit counter operation |
| TOUT1 / TOUT2 | Timer Output | Programmable output signals for square-wave generation, single-shot pulses, or interrupt-triggered edge events |
| RxDA / TxDA | USART A I/O | Full-duplex serial data lines for channel A - compatible with RS-232/RS-422 levels via external transceivers |
| RxDB / TxDB | USART B I/O | Full-duplex serial data lines for channel B - independently configurable baud rate and framing |
| CS0–CS3 | Chip Select Outputs | Four programmable memory/peripheral enable signals with base address, mask, and access size configuration |
| TCK / TMS / TDI / TDO | JTAG Boundary Scan | IEEE 1149.1-compliant test interface for board-level diagnostics and in-circuit programming |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Mode (BDM) | On-chip microcode enables full register/memory read/write and patch execution over dedicated serial interface - no external emulator required |
| LPSTOP Low-Power State | Halts CPU32 and peripheral clocks while retaining register contents; reduces standby current to ~300 µW |
| Dual-Channel DMA Arbitration | Seamless bus sharing with CPU32 - DMA cycles butt against CPU cycles with zero arbitration delay |
| Programmable Clock Synthesizer | Software-selectable frequencies from 131 kHz to 16.78 MHz using internal PLL - enables dynamic performance/power tradeoffs |
| Integrated SIM40 Logic | Replaces >20 discrete components (PALs, TTL, ASICs) for bus control, interrupt handling, watchdog, and DRAM refresh timing |
Applications
| CD-I Player Control | Industrial Motion Controller |
|---|---|
Use Scenario: Real-time decoding and playback of compressed multimedia content from CD-ROM in consumer interactive entertainment systems. IC Role / Device Role / Timing Role: Central processor executing CD-I Green Book firmware, managing DMA-driven audio/video buffer transfers, and synchronizing with external DACs and video encoders. Use Value: MC68340FE16VE's M68000 code compatibility ensures reuse of existing CD-I BIOS stacks, while its 16.78 MHz 3.3 V operation meets portable player thermal and battery life constraints. |
Use Scenario: Closed-loop servo control of multi-axis CNC machines with coordinated motion profiling and real-time I/O response. IC Role / Device Role / Timing Role: Deterministic real-time controller running position loop algorithms, sampling encoder feedback via timer input capture, and driving stepper/motor drivers via discrete I/O and USART-modem interfaces. Use Value: MC68340FE16VE's 80 ns timer resolution enables precise pulse-width modulation for motor phase control, and its dual USARTs support simultaneous HMI and PLC communication protocols. |
| Telecom Protocol Gateway | Legacy System Emulation Bridge |
Use Scenario: Protocol translation between RS-232 terminal devices and modern Ethernet/IP networks in field-deployed infrastructure. IC Role / Device Role / Timing Role: Embedded gateway processor handling UART-to-TCP packetization, buffering, and flow control - leveraging dual USARTs and DMA for zero-copy data movement. Use Value: MC68340FE16VE's 9.8 Mbps serial throughput and 4-byte receive buffers minimize CPU overhead, while its 32-bit addressing simplifies large packet buffer management in constrained memory systems. |
Use Scenario: Hardware replacement for obsolete MC68000-based instrumentation controllers requiring binary-compatible upgrade path. IC Role / Device Role / Timing Role: Drop-in architectural successor executing original firmware without recompilation, using identical instruction set and memory map layout. Use Value: MC68340FE16VE's upward object-code compatibility preserves decades-old control software while adding DMA acceleration and low-voltage operation - extending product lifecycle without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68332CFN16 | Same CPU32 core but lacks DMA controller and second USART; uses 112-pin PQFP package | Suitable for cost-sensitive control-only tasks without high-speed data movement | Select when DMA and dual serial I/O are unnecessary and PCB footprint must be minimized |
| MC68360EM26DR | Enhanced M68300 derivative with QUICC engine, Ethernet MAC, and 25 MHz rating; requires 3.3 V supply | Targets networked communications systems needing integrated protocol offload | Choose when TCP/IP stack acceleration or native Ethernet connectivity is required over raw processing bandwidth |
Compared with MC68340FE16VE, MC68332CFN16 reduces integration to cut cost and size but sacrifices DMA throughput and serial channel count, while MC68360EM26DR adds networking peripherals at higher complexity and power - making MC68340FE16VE optimal for balanced embedded control with deterministic I/O and memory bandwidth.
Availability
MC68340FE16VE is available at Aetrix Electronics and suitable for CD-I player manufacturing, industrial motion control systems, telecom protocol gateways, and legacy M68000 system upgrades requiring stable component supply and long-term obsolescence mitigation.
Supply support for MC68340FE16VE 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
Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors and analog/mixed-signal ICs, founded from Motorola's semiconductor division in 2004.
The MC68340FE16VE belongs to the M68300 family - engineered for high-integration embedded control applications where reduced component count, deterministic real-time performance, and M68000 software compatibility were critical design requirements.
FAQ
What is the maximum operating frequency of the MC68340FE16VE?
The MC68340FE16VE is rated for operation up to 16.78 MHz at 3.3 V ±0.3 V. This frequency is guaranteed across the full industrial temperature range (–40°C to +85°C) and reflects the device's optimized static HCMOS process. Higher frequencies (e.g., 25.16 MHz) apply only to 5 V variants like MC68340RC25, not the FE16VE suffix variant.
Does the MC68340FE16VE support JTAG boundary scan testing?
Yes, the MC68340FE16VE includes full IEEE 1149.1-compliant boundary scan logic with dedicated TCK, TMS, TDI, and TDO pins. This enables board-level interconnect testing, in-system programming verification, and fault isolation during manufacturing - as documented in Freescale's MC68340UM/AD User's Manual Section 12.
Can the MC68340FE16VE execute original MC68000 object code without modification?
Yes, the MC68340FE16VE's CPU32 core provides full upward object-code compatibility with MC68000 and MC68010 binaries. No recompilation or source changes are needed - making it a direct drop-in replacement for legacy designs, as confirmed in Motorola's BR1114/D M68300 Family documentation.
What is the purpose of the LPSTOP instruction in the MC68340FE16VE?
The LPSTOP instruction places the MC68340FE16VE into a low-power standby state by halting the CPU32 core and disabling clocks to unused peripherals while preserving register and memory contents. Power consumption drops to approximately 300 µW, and operation resumes upon reset or interrupt - ideal for battery-powered or thermally constrained applications.
How many serial communication channels does the MC68340FE16VE integrate?
The MC68340FE16VE integrates two independent full-duplex Universal Synchronous/Asynchronous Receiver/Transmitters (USARTs), designated Channel A and Channel B. Each supports programmable baud rates up to 9.8 Mbps at 16.78 MHz, modem control signals (RTS/CTS), and MC68681/MC2681 functional equivalence per Freescale's MC68340UM/AD specification.
MC68340FE16VE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-BCQFP
- Series:
- M683xx
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Core Processor:
- CPU32
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 16MHz
- Co-Processors/DSP:
- -
- RAM Controllers:
- DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- -
- SATA:
- -
- USB:
- -
- Voltage - I/O:
- 3.3V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-CQFP (26.77x26.77)
- Additional Interfaces:
- USART
MC68340FE16VE FAQ
1.How can I place an order for MC68340FE16VE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68340FE16VE 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 MC68340FE16VE reliable?
The price and inventory of MC68340FE16VE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68340FE16VE is usually 5 days.
3.What payment methods are accepted for MC68340FE16VE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68340FE16VE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68340FE16VE?
MC68340FE16VE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68340FE16VE 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 MC68340FE16VE?
For technical support, including MC68340FE16VE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68340FE16VE requirements.
6.How does Aetrix verify that MC68340FE16VE is sourced from the original manufacturer or authorized distributors?
All MC68340FE16VE 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 MC68340FE16VE meets industry standards.
7.What is the process for return or replacement of MC68340FE16VE?
All MC68340FE16VE units undergo pre-shipment inspection (PSI). If there is an issue with MC68340FE16VE, 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 MC68340FE16VE part is unused and in its original packaging.
Return procedure for MC68340FE16VE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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