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NXP Semiconductors MC68EN360VR25L
- Part No.:
- MC68EN360VR25L
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 357-BBGA
- Datasheet:
-
MC68EN360VR25L.pdf
- Description:
- IC MPU M683XX 25MHZ 357BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,005
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Product details
Overview
MC68EN360VR25L 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, supports up to 32-bit data/28+ address lines, and integrates four SCCs, two SMCs, one SPI, dual TDM buses, and two independent DMAs - enabling embedded telecom gateways, industrial protocol bridges, and legacy network interface cards.
For engineers reviewing the MC68EN360VR25L datasheet, MC68EN360VR25L pinout, MC68EN360VR25L application, or MC68EN360VR25L equivalent, key selection criteria include Ethernet-capable SCC1 support, HDLC/SDLC up to 2 Mbps per channel, MC68040 companion mode operation, and 240-pin PQFP packaging with 20-mil pitch for industrial temperature range (–40°C to +85°C).
Technical Context
The MC68EN360VR25L implements a three-module architecture: CPU32+ core (M68000-compatible, 4.5 MIPS @ 25 MHz), SIM60 (with DRAM controller, IEEE 1149.1 JTAG, periodic timer, and slave-mode bus arbitration), and CPM (RISC-based communications engine with 224 buffer descriptors and seven serial channels).
It supports dynamic bus sizing (8/16/32-bit), byte-misaligned addressing, background debug mode, and glueless interfacing to EPROM, Flash, SRAM, and DRAM SIMMs. The CPM offloads serial protocol handling - including Ethernet/IEEE 802.3 on SCC1, HDLC/SDLC, UART, SPI, and TDM time-slot assignment - freeing the CPU32+ for system-level tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32+ (M68000 instruction set compatible, 4.5 MIPS @ 25 MHz) |
| Max Clock Frequency | 25 MHz - enables deterministic real-time response in protocol stacks |
| Serial Channels | 7 total: 4 SCCs + 2 SMCs + 1 SPI - supports concurrent Ethernet, HDLC, UART, and TDM interfaces |
| Memory Interface | Up to 32-bit data bus, ≥28 address lines, 4 CAS/4 WE/1 OE - allows direct connection to DRAM, SRAM, and Flash without glue logic |
| Operating Temperature | –40°C to +85°C - qualified for industrial and telecom infrastructure environments |
| Package | 240-pin PQFP, 20-mil pitch - matches MC68EN360RC25 footprint but with surface-mount compatibility |
| Special Feature | Ethernet capability on SCC1 - full 10-Mbps IEEE 802.3 support (exclusive to EN-series variants) |
Pinout & Package
MC68EN360VR25L is housed in a 240-pin Plastic Quad Flat Pack (PQFP) with 20-mil pitch, designed for industrial-temperature operation (–40°C to +85°C). Pin assignments follow the MC68EN360RC25 pinout as defined in Freescale's MC68360 User's Manual (MC68360UM/AD), with identical signal mapping across all EN-series variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous reset input | Active-low signal initiating full chip initialization, including CPM and SIM60 register reset |
| CLKIN | External clock input | Accepts 25 MHz crystal or oscillator; feeds internal clock synthesizer for CPU32+, CPM, and peripheral timing |
| SCC1_TXD / SCC1_RXD | Ethernet physical layer interface | Differential pair supporting 10BASE-T via external transceiver; requires MII-compatible PHY connection |
| CS0–CS7 | Chip select outputs | Eight programmable memory/peripheral selects with configurable timing - enable boot from CS0 and DRAM control on CS1–CS3 |
| RAS / CAS0–CAS3 | DRAM row/column address strobes | Integrated DRAM controller drives RAS and four CAS lines for multi-bank DRAM SIMM support |
| TxD0–TxD3 / RxD0–RxD3 | SCC serial data I/O | Four independent SCC channels with full-duplex synchronous/asynchronous operation and BD-managed DMA transfers |
Key Features
| Feature | Design Value |
|---|---|
| CPU32+ with byte-misaligned addressing | Enables efficient access to packed 16/32-bit data structures in odd-addressed buffers without software alignment overhead |
| CPM with 224 buffer descriptors | Supports zero-copy packet processing across all 7 serial channels - reduces CPU load during high-throughput HDLC or Ethernet framing |
| Dual TDM time-slot assigner | Routes transmit/receive data independently across two TDM buses (T1/CEPT/ISDN Primary Rate) with dynamic slot reconfiguration |
| MC68040 companion mode | Allows QUICC to act as intelligent peripheral under MC68EC040 control - offloads serial I/O while preserving burst-mode DRAM access |
| IEEE 1149.1 JTAG test access port | Enables boundary-scan testing and in-circuit debugging without requiring dedicated debug pins or BDM hardware |
Applications
| Industrial Protocol Gateway | Legacy Network Interface Card |
|---|---|
|
Use Scenario: Connecting Modbus RTU field devices to EtherNet/IP backbone in factory automation systems. IC Role / Device Role / Timing Role: MC68EN360VR25L acts as protocol translation bridge - SMCs handle RS-485 Modbus, SCC1 manages Ethernet encapsulation, CPM performs real-time frame conversion. Use Value: Eliminates need for external FPGA or dual-CPU architecture; single-chip solution reduces BOM cost and board space by >40% versus discrete MCU + PHY + protocol ASIC designs. |
Use Scenario: Retrofitting older PBX or TDM-based telecom equipment with IEEE 802.3 connectivity. IC Role / Device Role / Timing Role: MC68EN360VR25L serves as line-card controller - SCC1 terminates Ethernet, SCC2–SCC4 run HDLC for E1/T1 trunks, SIM60 manages DRAM-based call record buffers. Use Value: Leverages existing TDM infrastructure while adding IP management; avoids costly chassis redesign due to glueless DRAM/Flash interface and 240-pin PQFP compatibility with legacy layouts. |
| Embedded Telecom Router | Multi-Protocol Serial Hub |
|
Use Scenario: Deploying compact edge routers in remote DSLAM cabinets requiring PPPoE, Frame Relay, and ISDN backup. IC Role / Device Role / Timing Role: MC68EN360VR25L functions as routing engine - CPM executes HDLC/PPP on SCC3/SCC4, SPI connects to serial EEPROM for config storage, TIMERS manage keep-alive intervals. Use Value: Achieves sub-10ms packet forwarding latency using CPM offload; supports simultaneous WAN protocols without CPU context switching penalties. |
Use Scenario: Centralized monitoring of distributed sensors using mixed serial interfaces (RS-232, RS-422, AppleTalk, transparent bitstream). IC Role / Device Role / Timing Role: MC68EN360VR25L operates as serial concentrator - SMC1 handles debug UART, SCC2 runs AppleTalk, SCC4 processes raw bitstream, time-slot assigner routes TDM audio to SPI-connected codec. Use Value: Consolidates six disparate serial standards onto one PCB; eliminates need for six separate level-shifters and protocol translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68EN360RC25 | Pinned for PGA package (240-pin ceramic); same electrical specs and feature set but different mechanical mounting | Used where through-hole or socketed prototyping is required; not suitable for automated SMT assembly | Select MC68EN360RC25 only when mechanical constraints demand PGA; otherwise MC68EN360VR25L offers superior thermal performance and SMT scalability |
| MC68360EM25 | Lacks Ethernet-capable SCC1; rated for 0°C to +70°C only; no EN-series firmware microcode for IEEE 802.3 | Suitable for non-Ethernet control applications (e.g., HDLC-only base stations) in commercial temperature environments | Choose MC68360EM25 only if Ethernet is unnecessary and ambient temperature stays within 0–70°C; MC68EN360VR25L provides broader protocol and environmental coverage |
Compared with MC68EN360RC25 and MC68360EM25, the MC68EN360VR25L uniquely combines industrial temperature rating, Ethernet-enabled SCC1, and 240-pin PQFP packaging - making it the only variant qualified for unattended outdoor telecom deployments requiring both robustness and IEEE 802.3 interoperability.
Availability
MC68EN360VR25L is available at Aetrix Electronics and suitable for industrial protocol gateways, legacy network interface cards, embedded telecom routers, and multi-protocol serial hubs requiring stable component supply across extended lifecycle programs.
Supply support for MC68EN360VR25L 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) is a fabless semiconductor company specializing in embedded processing, connectivity, and analog solutions for automotive, industrial, and networking markets.
The MC68EN360VR25L belongs to the QUICC™ family - a line of integrated communications controllers designed specifically for real-time protocol bridging, telecom infrastructure, and industrial networking where deterministic serial I/O offload and CPU efficiency are critical.
FAQ
What is the primary function of the MC68EN360VR25L in embedded systems?
The MC68EN360VR25L serves as an integrated communications controller combining a CPU32+ core, System Integration Module (SIM60), and Communications Processor Module (CPM). Its primary function is to offload serial protocol handling - including Ethernet, HDLC, UART, SPI, and TDM - from the main application processor. In practice, the MC68EN360VR25L enables real-time, low-latency bridging between legacy industrial buses and modern IP networks without requiring external ASICs or FPGAs.
Does the MC68EN360VR25L support Ethernet, and if so, which interface implements it?
Yes, the MC68EN360VR25L supports full 10-Mbps IEEE 802.3 Ethernet via SCC1 - a feature exclusive to the EN-series variants (MC68EN360). SCC1 provides the MAC-layer functionality and must be paired with an external PHY transceiver (e.g., DP83840) to complete the physical layer. This capability is absent in non-EN variants like MC68360EM25, making the MC68EN360VR25L the only choice for Ethernet-integrated designs within the QUICC family.
What is the significance of "VR" in the MC68EN360VR25L part number?
The "VR" suffix in MC68EN360VR25L denotes the 240-pin Plastic Quad Flat Pack (PQFP) package with 20-mil pitch and industrial temperature range (–40°C to +85°C). This distinguishes it from RC (PGA), EM (commercial-temp PQFP), and other variants. The VR package ensures compatibility with standard SMT assembly lines and provides thermal reliability for enclosed telecom enclosures - a key requirement confirmed in Freescale's MC68360 Package/Frequency Availability table.
Can the MC68EN360VR25L operate as a peripheral to a faster host processor?
Yes, the MC68EN360VR25L supports slave mode operation, including MC68040 companion mode. In this configuration, the CPU32+ core is disabled, allowing the CPM and SIM60 to function as an intelligent communications peripheral under control of an external master (e.g., MC68EC040). The MC68EN360VR25L retains full DMA, TDM, and serial channel functionality in slave mode - enabling high-bandwidth offload without CPU intervention.
How does the CPM in the MC68EN360VR25L differ from the CP in the earlier MC68302?
The CPM in the MC68EN360VR25L is a superset of the MC68302's Communications Processor (CP), featuring 224 buffer descriptors (vs. 64), support for seven serial channels (vs. three), and enhanced command set (e.g., Graceful Stop Transmit, Close RxBD). While register-level compatibility is maintained for SCC event/mask/status and BD structure, the MC68EN360VR25L CPM adds TDM time-slot assignment, dual IDMA controllers, and RAM-based microcode options for PPP, Profibus, and DDCMP - extending protocol flexibility far beyond the MC68302's capabilities.
MC68EN360VR25L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 357-BBGA
- Series:
- M683xx
- Packaging:
- Tray
- 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:
- 5.0V
- 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
MC68EN360VR25L FAQ
1.How can I place an order for MC68EN360VR25L through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68EN360VR25L 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 MC68EN360VR25L reliable?
The price and inventory of MC68EN360VR25L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68EN360VR25L is usually 5 days.
3.What payment methods are accepted for MC68EN360VR25L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68EN360VR25L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68EN360VR25L?
MC68EN360VR25L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68EN360VR25L 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 MC68EN360VR25L?
For technical support, including MC68EN360VR25L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68EN360VR25L requirements.
6.How does Aetrix verify that MC68EN360VR25L is sourced from the original manufacturer or authorized distributors?
All MC68EN360VR25L 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 MC68EN360VR25L meets industry standards.
7.What is the process for return or replacement of MC68EN360VR25L?
All MC68EN360VR25L units undergo pre-shipment inspection (PSI). If there is an issue with MC68EN360VR25L, 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 MC68EN360VR25L part is unused and in its original packaging.
Return procedure for MC68EN360VR25L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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