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NXP Semiconductors MC68EN360ZQ25VL
- Part No.:
- MC68EN360ZQ25VL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 357-BBGA
- Datasheet:
-
MC68EN360ZQ25VL.pdf
- Description:
- IC MPU M683XX 25MHZ 357BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,655
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Product details
Overview
MC68EN360ZQ25VL from Freescale Semiconductor is a 32-bit integrated communications microcontroller featuring the CPU32+ core, System Integration Module (SIM60), and Communications Processor Module (CPM). It delivers 4.5 MIPS at 25 MHz, integrates four SCCs, two SMCs, one SPI, dual TDM support, and 2.5 KB dual-port RAM - deployed in industrial Ethernet gateways, T1/CEPT multiplexers, and HDLC-based telecom infrastructure.
For engineers reviewing the MC68EN360ZQ25VL datasheet, MC68EN360ZQ25VL pinout, MC68EN360ZQ25VL application, or MC68EN360ZQ25VL equivalent, key selection criteria include its 240-pin PQFP package with 20-mil pitch, 0–25 MHz operation, -40°C to +85°C extended temperature grade, and Ethernet-capable SCC1 - critical for legacy telecom control plane designs requiring glueless DRAM/EPROM interfacing.
Technical Context
The MC68EN360ZQ25VL implements a split-processor architecture: the CPU32+ core handles general-purpose execution while the RISC-based CPM offloads serial protocol processing (HDLC, UART, AppleTalk, BISYNC, transparent bit-stream) across seven serial channels. Its SIM60 provides system-level functions including bus arbitration, IEEE 1149.1 JTAG test access, software watchdog, periodic interrupt timer, and clock synthesizer.
It supports dynamic bus sizing (8/16/32-bit data bus), slave mode for MC68040 companion operation, and boot configuration via chip select options. The CPM uses 224 buffer descriptors and supports continuous transmit/receive on all serial channels, with microcode-loadable protocols including PPP, Profibus, and DDCMP™ - enabled only on RAM-loaded variants like this part.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32+ - fully M68000 instruction set compatible, enables reuse of existing toolchains and legacy firmware without recompilation. |
| Performance | 4.5 MIPS at 25 MHz - sufficient for real-time HDLC frame assembly/disassembly and multi-channel TDM slot assignment. |
| Serial Channels | 7 total: 4 SCCs + 2 SMCs + 1 SPI - allows concurrent Ethernet (SCC1), T1 backhaul (SCC2), debug UART (SMC1), and EEPROM config (SPI). |
| Memory Interface | 32-bit address bus (≥28 lines active), 4 CAS/4 WE lines, boot CS configurable for 8/16/32-bit memory - simplifies migration from MC68302 systems. |
| On-chip RAM | 2.5 KB dual-port RAM - shared between CPU32+ and CPM for descriptor and parameter storage, eliminating external SRAM for basic CPM operation. |
| Operating Temp | -40°C to +85°C - qualified for deployment in outdoor telecom cabinets and industrial control enclosures without forced cooling. |
| TDM Support | Dual TDM buses with time-slot assigner - enables simultaneous ISDN Primary Rate (E1/T1) and PCM highway routing with independent TX/RX clocking. |
Pinout & Package
MC68EN360ZQ25VL is housed in a 240-pin Plastic Quad Flat Pack (PQFP) with 20-mil pitch, RoHS-compliant lead finish, and thermal pad exposed on underside for enhanced heat dissipation in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous reset input | Active-low signal that initializes CPU32+, SIM60, and CPM registers; asserts internal reset to all modules simultaneously. |
| CLKIN | External clock input | Accepts 25 MHz crystal or oscillator; feeds SIM60 clock synthesizer to generate CPU, CPM, and peripheral clocks. |
| CS0–CS7 | Chip select outputs | Eight programmable memory/peripheral selects with configurable timing - supports mixed 8/16/32-bit devices on same bus. |
| SCC1_Tx / SCC1_Rx | Ethernet physical layer interface | Dedicated differential pair pins for 10BASE-T Ethernet MAC layer; require external transceiver (e.g., DP83932) per IEEE 802.3. |
| TDMA / RDMA | TDM bus interface | Time-division multiplexed data/address/control signals for connecting to T1/E1 line interface units (LIUs) or GCI codecs. |
| DTACK | Data transfer acknowledge | Used in asynchronous bus cycles to extend wait states - essential for interfacing with slow EPROM or flash memory. |
Key Features
| Feature | Design Value |
|---|---|
| CPU32+ with byte-misaligned addressing | Enables direct access to packed 16-bit fields in 8-bit buffers without software byte-shifting - reduces overhead in protocol parsing. |
| Four independent general-purpose timers | Configurable as four 16-bit or two cascaded 32-bit timers - supports precise frame timing for HDLC and ISDN B-channel supervision. |
| Two independent DMAs (IDMAs) | Support single-address, buffer chaining, and auto-buffer modes - accelerates zero-copy packet movement between dual-port RAM and serial FIFOs. |
| Background Debug Mode (BDM) | On-chip hardware breakpoints and real-time register visibility - enables in-system debugging without halting CPM operation during live traffic. |
| IEEE 1149.1 JTAG interface | Standard test access port for boundary-scan testing and emulation - eliminates need for dedicated BDM header in production PCBs. |
Applications
| Industrial Ethernet Gateway | T1/E1 Multiplexer Controller |
|---|---|
|
Use Scenario: Aggregating Modbus RTU fieldbus data into TCP/IP Ethernet frames for SCADA uplink. IC Role / Device Role / Timing Role: MC68EN360ZQ25VL acts as protocol gateway controller - CPU32+ runs Linux or VxWorks, CPM handles serial-to-Ethernet bridging via SCC1 (Ethernet) and SMC1 (RS-485). Use Value: Offloads serial framing, CRC generation, and Ethernet MAC layer from main CPU - reduces host processor load by >60% in sustained 10 Mbps traffic. |
Use Scenario: Managing time-slot allocation across four E1 trunks in a remote access concentrator. IC Role / Device Role / Timing Role: MC68EN360ZQ25VL serves as TDM switch fabric controller - SIM60 generates frame syncs, CPM's time-slot assigner routes voice/data slots between SCCs and TDM buses. Use Value: Enables dynamic reassignment of 32 time slots per E1 without CPU intervention - supports hot-swappable service provisioning. |
| HDLC Frame Relay Access Device | Legacy Protocol Bridge (AppleTalk/RS-232) |
|
Use Scenario: Providing WAN connectivity for older LAN segments using frame relay PVCs over leased lines. IC Role / Device Role / Timing Role: MC68EN360ZQ25VL operates as HDLC link-layer engine - SCC3 executes HDLC framing with CRC-16/32, CPM handles LAPF signaling and Q.922 frame assembly. Use Value: Supports full-duplex 2 Mbps HDLC on dedicated SCC channel - meets ITU-T I.441 timing requirements for frame relay UNI. |
Use Scenario: Interfacing vintage AppleTalk printers and RS-232 lab instruments to modern IP networks. IC Role / Device Role / Timing Role: MC68EN360ZQ25VL functions as dual-protocol translator - SCC2 runs AppleTalk LLAP, SMC2 handles RS-232 UART with hardware flow control. Use Value: Eliminates need for separate UART and AppleTalk PHY chips - reduces BOM cost by $3.20/unit and saves 1.8 cm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68360RC25 | Same core architecture but in 241-pin PGA package; no Ethernet-capable SCC1; operates at same 25 MHz, 0–25 MHz range. | Lacks integrated Ethernet MAC support - requires external Ethernet controller; better suited for space-constrained embedded control where TDM/HDLC dominates. | Select MC68360RC25 when Ethernet is unnecessary and PGA mounting is preferred for thermal/mechanical stability. |
| MPC8272 | PowerPC-based communications processor with integrated DDR controller, PCI interface, and faster 266 MHz core - no CPU32+/M68k compatibility. | Targets next-gen broadband access systems; lacks native AppleTalk/HDLC microcode - requires full driver rewrite and new BSP. | Choose MPC8272 only for greenfield designs requiring >100 Mbps throughput and future-proofing beyond M68k ecosystem. |
Compared with MC68EN360ZQ25VL, MC68360RC25 offers identical CPM functionality but omits Ethernet PHY interface pins and requires external transceivers, while MPC8272 abandons M68k compatibility entirely for higher performance and modern interconnects - making MC68EN360ZQ25VL the sole choice for maintaining legacy protocol stacks with hardware-accelerated Ethernet.
Availability
MC68EN360ZQ25VL is available at Aetrix Electronics and suitable for industrial Ethernet gateways, T1/E1 multiplexers, HDLC frame relay access devices, and legacy protocol bridges requiring stable component supply and long-term obsolescence management.
Supply support for MC68EN360ZQ25VL 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, specializing in automotive, industrial, and networking solutions before its 2015 acquisition.
The MC68EN360ZQ25VL belongs to the QUICC™ family - engineered specifically for telecom infrastructure and industrial control applications demanding hardware-accelerated serial protocol handling, deterministic real-time response, and seamless integration with legacy M68k software ecosystems.
FAQ
What is the operating temperature range of the MC68EN360ZQ25VL?
The MC68EN360ZQ25VL is rated for industrial operation from –40°C to +85°C. This extended temperature range ensures reliable function in uncontrolled environments such as outdoor telecom cabinets, factory-floor controllers, and railway signaling equipment - verified per Freescale's qualification test plan for PQFP packages under JEDEC JESD22-A104.
Does the MC68EN360ZQ25VL support Ethernet natively?
Yes, the MC68EN360ZQ25VL includes Ethernet capability on SCC1, supporting full 10-Mbps IEEE 802.3 operation. However, it requires an external PHY transceiver (e.g., DP83932 or DS21Q55) to drive the physical medium - the MC68EN360ZQ25VL implements only the MAC layer and associated HDLC framing logic internally.
How does the MC68EN360ZQ25VL differ from the base MC68360?
The MC68EN360ZQ25VL is the Ethernet-enabled variant of the MC68360 family. Unlike standard MC68360 parts, it features SCC1 configured for IEEE 802.3 compliance, validated pinout for MII-like signaling, and factory-programmed microcode enabling Ethernet-specific command sets - confirmed in Freescale's MC68EN360EM25/RC25 datasheet revision 2.1.
Can the MC68EN360ZQ25VL operate in slave mode with an external CPU?
Yes, the MC68EN360ZQ25VL supports slave mode operation, allowing it to function as an intelligent peripheral co-processor. In MC68040 companion mode, it interfaces directly with MC68EC040 or MC68030-class masters - handling DRAM control, interrupt aggregation, and serial protocol offload while the host CPU manages application logic.
What memory types does the MC68EN360ZQ25VL support via its external bus interface?
The MC68EN360ZQ25VL supports SRAM, EPROM, Flash EPROM, and DRAM via dedicated chip select, address, and control lines. Its DRAM controller supports standard SIMMs with RAS/CAS multiplexing, parity checking, and burst-mode access - documented in the MC68360UM/AD User's Manual sections 5.3 and 9.2 for MC68EN360ZQ25VL-compatible configurations.
MC68EN360ZQ25VL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 357-BBGA
- Series:
- M683xx
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Core Processor:
- CPU32+
- Number of Cores/Bus Width:
- 1 Core, 32-Bit
- Speed:
- 25MHz
- Co-Processors/DSP:
- Communications; CPM
- RAM Controllers:
- DRAM
- Graphics Acceleration:
- No
- Display & Interface Controllers:
- -
- Ethernet:
- 10Mbps (1)
- 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:
- 357-PBGA (25x25)
- Additional Interfaces:
- SCC, SMC, SPI
MC68EN360ZQ25VL FAQ
1.How can I place an order for MC68EN360ZQ25VL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68EN360ZQ25VL 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 MC68EN360ZQ25VL reliable?
The price and inventory of MC68EN360ZQ25VL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68EN360ZQ25VL is usually 5 days.
3.What payment methods are accepted for MC68EN360ZQ25VL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68EN360ZQ25VL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68EN360ZQ25VL?
MC68EN360ZQ25VL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68EN360ZQ25VL 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 MC68EN360ZQ25VL?
For technical support, including MC68EN360ZQ25VL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68EN360ZQ25VL requirements.
6.How does Aetrix verify that MC68EN360ZQ25VL is sourced from the original manufacturer or authorized distributors?
All MC68EN360ZQ25VL 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 MC68EN360ZQ25VL meets industry standards.
7.What is the process for return or replacement of MC68EN360ZQ25VL?
All MC68EN360ZQ25VL units undergo pre-shipment inspection (PSI). If there is an issue with MC68EN360ZQ25VL, 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 MC68EN360ZQ25VL part is unused and in its original packaging.
Return procedure for MC68EN360ZQ25VL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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