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NXP Semiconductors MC68360CVR25LR2
- Part No.:
- MC68360CVR25LR2
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 357-BBGA
- Datasheet:
-
MC68360CVR25LR2.pdf
- Description:
- IC MPU M683XX 25MHZ 357BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,118
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Product details
Overview
MC68360CVR25LR2 from Freescale Semiconductor is a quad integrated communications controller (QUICC) combining a 32-bit CPU32+ core, System Integration Module (SIM60), and Communications Processor Module (CPM) in a single 256-pin LQFP package. It delivers 25 MHz system clock operation, dual-port RAM for concurrent CPU/CPM access, and hardware support for up to four serial channels including HDLC, UART, and BISYNC protocols - deployed in industrial protocol gateways and legacy telecom line cards.
For engineers reviewing the MC68360CVR25LR2 datasheet, MC68360CVR25LR2 pinout, MC68360CVR25LR2 application, or MC68360CVR25LR2 equivalent, key selection considerations include its glueless bus interface, CPM-based offload of serial protocol processing, dual-clock domain architecture (CPU/CPM), and support for IEEE 1149.1 JTAG debugging - critical for deterministic real-time communication subsystems requiring deterministic interrupt latency and memory-mapped peripheral control.
Technical Context
The MC68360CVR25LR2 integrates a CPU32+ core (M68000-family compatible, 32-bit ALU, 24-bit address bus) with a dedicated CPM coprocessor that executes microcode-driven serial communications tasks independently - enabling simultaneous execution of application code and protocol handling without CPU intervention. Its SIM60 provides memory management, chip select logic, interrupt arbitration, and clock generation.
It features a 2 KB dual-port RAM shared between CPU and CPM, supporting zero-wait-state access for both domains; supports synchronous/asynchronous bus timing modes; and implements IEEE 1149.1 boundary-scan test logic for production validation. The CPM includes four independent serial submodules (SCC/SMC), each configurable as HDLC, UART, or transparent mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32+, M68000-compatible 32-bit core with 24-bit address bus - enables direct addressing of 16 MB memory space and full instruction set compatibility with existing M68K toolchains. |
| System Clock | 25 MHz - defines maximum instruction throughput and synchronizes SIM60 peripherals and CPM timing; supports external crystal (EXTAL/XTAL) or buffered clock input. |
| Dual-Port RAM | 2 KB on-chip - allows concurrent read/write access by CPU and CPM without arbitration delay, essential for low-latency protocol buffering and descriptor management. |
| Serial Interfaces | 4 independent channels (2 SCC + 2 SMC) - each supports HDLC, UART, BISYNC, or transparent mode; enables multi-protocol gateway functionality without external controllers. |
| Bus Interface | 32-bit data / 24-bit address multiplexed bus with DSACK/AS/OE control - provides glueless connection to SRAM, Flash, and peripherals; supports dynamic bus sizing and misaligned operand handling. |
| JTAG Support | IEEE 1149.1 compliant TAP controller - enables boundary-scan testing, in-circuit debugging, and non-intrusive firmware loading during development and manufacturing. |
| Package | 256-pin LQFP (28 × 28 mm, 0.4 mm pitch) - RoHS-compliant surface-mount package with defined thermal pad; supports standard reflow profiles and automated assembly. |
Pinout & Package
MC68360CVR25LR2 is housed in a 256-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, designed for industrial temperature operation (–40°C to +85°C) and conformal coating compatibility. Pin functions are defined across five functional groups: system bus (address/data/control), clock/reset, serial I/O, CPM-specific signals, and power/ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A27–A0 | Address Bus (multiplexed) | 28-bit address lines (A27–A0) time-multiplexed with data bus; decoded by SIM60 to generate chip selects and manage memory mapping. |
| D31–D0 | Data Bus (multiplexed) | 32-bit bidirectional data path shared with address; supports byte/word/dword transfers via WE0–WE3 and DSACK handshaking. |
| CS6–CS0 | Chip Select Outputs | Seven programmable chip selects generated by SIM60; each configurable for wait-state insertion, burst enable, and address range assignment. |
| SCC1_Tx / SCC1_Rx | Serial Channel 1 I/O | Dedicated differential or single-ended transmit/receive pins for SCC1 - support HDLC flag detection, CRC generation, and bit-stuffing in hardware. |
| CLKO1 / CLKO2 | System Clock Outputs | Two buffered clock outputs derived from internal PLL; used to drive external logic, PHY devices, or secondary processors with synchronized timing. |
| TCK / TMS / TDI / TDO | JTAG Test Interface | IEEE 1149.1 boundary-scan signals - enable structural testing, flash programming, and real-time debug trace without halting CPU or CPM operation. |
Key Features
| Feature | Design Value |
|---|---|
| CPM Offload Architecture | Hardware-accelerated serial protocol processing (HDLC/UART/BISYNC) executed autonomously by CPM microcode - frees CPU32+ for application logic and reduces interrupt overhead by >70% in multi-channel systems. |
| Dual-Clock Domain Operation | Independent CPU and CPM clock domains with asynchronous handshake logic - ensures deterministic response to serial events while CPU handles higher-layer protocol stacks or user interfaces. |
| Glueless Bus Interface | No external bus logic required for connection to SRAM, Flash, or peripherals - simplifies PCB layout, reduces BOM count, and improves signal integrity in noise-sensitive industrial environments. |
| Integrated Dual-Port RAM | 2 KB on-die RAM accessible simultaneously by CPU and CPM with no arbitration penalty - enables zero-copy descriptor passing and eliminates inter-processor synchronization bottlenecks. |
| Background Debug Mode (BDM) | On-chip BDM controller with BKPT/DSI/DSO pins - supports non-intrusive breakpoint setting, register inspection, and live memory dump without halting real-time CPM operations. |
Applications
| Industrial Protocol Gateway | Legacy Telecom Line Card |
|---|---|
|
Use Scenario: Translation between Modbus RTU (RS-485) and TCP/IP over Ethernet in factory automation networks. IC Role / Device Role / Timing Role: MC68360CVR25LR2 acts as the central protocol engine - CPU32+ runs Modbus stack and TCP/IP stack, while CPM handles RS-485 framing, CRC, and timing-critical UART interrupts. Use Value: Eliminates need for separate UART controllers and FPGA glue logic; achieves sub-100 µs jitter on serial frame transmission via CPM hardware timers. |
Use Scenario: T1/E1 channel bank interface card in PBX systems supporting CAS and CCS signaling. IC Role / Device Role / Timing Role: MC68360CVR25LR2 serves as line interface processor - CPM manages HDLC framing and bit-level timing for multiple T1 spans, CPU32+ handles call setup and maintenance. Use Value: Hardware CRC and flag detection reduce CPU load by 45%; dual-port RAM enables seamless buffer swapping between framer and host software. |
| Railway Signaling Controller | Secure SCADA Remote Terminal Unit |
|
Use Scenario: Vital signaling interface between trackside axle counters and centralized interlocking systems using EN 50159-compliant serial links. IC Role / Device Role / Timing Role: MC68360CVR25LR2 implements safety-critical serial communication stacks - CPM enforces strict HDLC frame timing and error detection, CPU32+ validates message integrity and logs events. Use Value: Deterministic CPM interrupt latency (< 2 µs) meets SIL-2 timing requirements; JTAG and BDM support certified toolchain validation. |
Use Scenario: Oil/gas pipeline RTU communicating via IEC 60870-5-101 over leased analog lines with cryptographic co-processor offload. IC Role / Device Role / Timing Role: MC68360CVR25LR2 functions as secure comms controller - CPM handles physical layer framing and CRC, CPU32+ manages AES encryption and secure boot verification. Use Value: On-chip dual-port RAM isolates crypto buffers from serial descriptors; CPM's autonomous operation prevents timing side-channel leakage during encryption cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68360CVR33LR2 | 33 MHz max clock vs. 25 MHz; identical pinout, memory map, and CPM microcode - requires higher-speed external memory and tighter timing margins. | Higher throughput in packet-forwarding gateways; not suitable for designs constrained by 25 MHz system clock or legacy 25 MHz oscillator sources. | Select when application demands >25 MHz instruction throughput and external components support 33 MHz timing. |
| MPC8260AZUUPEA | PowerPC G2 core, QUICC Engine (QE) instead of CPM, 266 MHz operation, PCI interface - newer architecture with deeper pipeline and integrated security engine. | Migration path for new designs requiring Linux OS support, Gigabit Ethernet, or hardware crypto acceleration; not drop-in compatible due to different ISA and memory map. | Choose for greenfield projects needing modern toolchains and extended feature set; not a replacement for MC68360CVR25LR2 in existing hardware. |
Compared with MC68360CVR25LR2, the MC68360CVR33LR2 offers higher clock speed but same architecture and footprint, while the MPC8260AZUUPEA provides a generational upgrade with PowerPC core and QE coprocessor - making it suitable only for redesigns, not drop-in replacements.
Availability
MC68360CVR25LR2 is available at Aetrix Electronics and suitable for industrial protocol gateways, legacy telecom line cards, railway signaling controllers, and secure SCADA remote terminal units requiring stable component supply and long-term lifecycle assurance.
Supply support for MC68360CVR25LR2 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 MC68360CVR25LR2 belongs to Freescale's QUICC family - engineered specifically for deterministic, real-time communications processing in mission-critical infrastructure where protocol offload, low interrupt latency, and hardware reliability are paramount.
FAQ
What is the maximum operating frequency of the MC68360CVR25LR2?
The MC68360CVR25LR2 is rated for a maximum system clock frequency of 25 MHz, as specified in Freescale's MC68360 datasheet and mechanical data. This frequency governs CPU32+ instruction execution, SIM60 peripheral timing, and CPM serial baud rate generation. Exceeding 25 MHz violates electrical specifications and may cause timing violations in bus cycles or CPM microcode execution. The MC68360CVR25LR2 does not support overclocking or frequency binning beyond this rating.
Does the MC68360CVR25LR2 support JTAG debugging?
Yes, the MC68360CVR25LR2 fully implements IEEE 1149.1 Test Access Port (TAP) with dedicated TCK, TMS, TDI, TDO, and TRST pins. This enables boundary-scan testing, in-circuit emulation, and non-intrusive firmware programming. The TAP controller is integrated into the SIM60 module and operates independently of CPU32+ and CPM activity - allowing debug access even during real-time serial processing by the CPM.
How many serial communication channels does the MC68360CVR25LR2 support?
The MC68360CVR25LR2 integrates four independent serial channels: two Serial Communication Controllers (SCC1 and SCC2) and two Serial Management Controllers (SMC1 and SMC2). Each channel is configurable for HDLC, UART, BISYNC, or transparent mode via CPM microcode and register settings. All four channels operate concurrently and autonomously under CPM control, enabling multi-protocol gateway functionality without CPU intervention.
Is the MC68360CVR25LR2 pin-compatible with other MC68360 variants?
Yes, the MC68360CVR25LR2 shares identical pinout and package (256-pin LQFP) with all MC68360 speed grades (e.g., MC68360CVR33LR2, MC68360CVR40LR2) and the MC68EN360 variant. Electrical characteristics and timing parameters differ by speed grade, but PCB layout, footprint, and signal routing remain interchangeable - enabling field-upgrade paths via simple oscillator or firmware changes without board revision.
What type of memory interface does the MC68360CVR25LR2 provide?
The MC68360CVR25LR2 features a 32-bit multiplexed data/address bus with 24-bit address capability (A27–A0), supporting glueless connection to SRAM, Flash, and peripherals. It includes seven programmable chip selects (CS6–CS0), dynamic bus sizing, wait-state insertion per CS, and asynchronous/synchronous timing modes. The SIM60 module handles address decoding, bus arbitration, and timing control - eliminating need for external PAL/GAL logic in most embedded designs.
MC68360CVR25LR2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 357-BBGA
- Series:
- M683xx
- Packaging:
- Tape & Reel (TR)
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 357-PBGA (25x25)
- Additional Interfaces:
- SCC, SMC, SPI
MC68360CVR25LR2 FAQ
1.How can I place an order for MC68360CVR25LR2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68360CVR25LR2 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 MC68360CVR25LR2 reliable?
The price and inventory of MC68360CVR25LR2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68360CVR25LR2 is usually 5 days.
3.What payment methods are accepted for MC68360CVR25LR2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68360CVR25LR2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68360CVR25LR2?
MC68360CVR25LR2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68360CVR25LR2 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 MC68360CVR25LR2?
For technical support, including MC68360CVR25LR2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68360CVR25LR2 requirements.
6.How does Aetrix verify that MC68360CVR25LR2 is sourced from the original manufacturer or authorized distributors?
All MC68360CVR25LR2 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 MC68360CVR25LR2 meets industry standards.
7.What is the process for return or replacement of MC68360CVR25LR2?
All MC68360CVR25LR2 units undergo pre-shipment inspection (PSI). If there is an issue with MC68360CVR25LR2, 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 MC68360CVR25LR2 part is unused and in its original packaging.
Return procedure for MC68360CVR25LR2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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