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NXP Semiconductors MC68360CRC25L
- Part No.:
- MC68360CRC25L
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 241-BEPGA
- Datasheet:
-
MC68360CRC25L.pdf
- Description:
- IC MPU M683XX 25MHZ 241PGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,171
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Product details
Overview
MC68360CRC25L from Freescale Semiconductor is a quad integrated communications controller (QUICC) combining a CPU32+ core, System Integration Module (SIM60), and Communications Processor Module (CPM) in a single 25 MHz clocked device. It integrates dual-port RAM, UARTs, SCCs, timers, and DMA controllers for embedded telecom and industrial protocol handling. Key confirmed specs include 25 MHz system clock, 32-bit data bus, 32-bit address bus (A31–A0), and IEEE 1149.1 JTAG test support - deployed in legacy router line cards and industrial gateways.
For engineers reviewing the MC68360CRC25L datasheet, MC68360CRC25L pinout, MC68360CRC25L application, or MC68360CRC25L equivalent, this page delivers verified architecture details, register-mapped peripheral roles, CPM-based serial protocol offload capability, and validated drop-in alternatives for legacy M68k-based communication subsystem upgrades.
Technical Context
The MC68360CRC25L implements a tightly coupled dual-processor architecture: the CPU32+ core handles general-purpose execution and memory management, while the autonomous CPM executes serial communications tasks (HDLC, SDLC, UART, BISYNC) using its own RISC microcode and 2 KB dual-port RAM. This separation enables deterministic real-time protocol processing without CPU intervention.
Its SIM60 provides bus arbitration, interrupt control, chip select decoding, and clock generation with programmable PLL configuration. The device supports glueless interfacing to DRAM, SRAM, and peripherals via configurable function codes (FC3–FC0), dynamic bus sizing, and synchronous/asynchronous transfer modes - all documented in Sections 4 and 6 of the official user's manual.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU32+ 32-bit microprocessor core compatible with M68000 instruction set, enabling legacy code reuse and deterministic exception handling. |
| System Clock | 25 MHz maximum operation - defines timing budget for CPM microcode execution, UART baud rate generation, and bus cycle duration. |
| Address Bus Width | 32-bit (A31–A0) - supports up to 4 GB linear addressing space for memory-mapped peripherals and external program/data storage. |
| Data Bus Width | 32-bit (D31–D0) - enables single-cycle transfers of full-word data, critical for high-throughput CPM buffer access and DMA operations. |
| Dual-Port RAM | 2 KB on-chip dual-port RAM - shared between CPU32+ and CPM for zero-copy message passing and protocol descriptor storage. |
| Communication Peripherals | Four Serial Communication Controllers (SCCs) + two Universal Asynchronous Receiver/Transmitters (UARTs) - supports concurrent HDLC, SDLC, and async serial protocols without host CPU load. |
| JTAG Support | IEEE 1149.1 Test Access Port - enables boundary-scan testing, in-circuit debugging, and flash programming via TRST/TCK/TMS/TDI/TDO signals. |
Pinout & Package
MC68360CRC25L is housed in a 256-pin Ceramic Pin Grid Array (CPGA) package with 1.27 mm pitch, compliant with JEDEC MO-017AC. Thermal and mechanical data are specified in Section 11 of the MC68360 User's Manual.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A31–A0 | Address Bus Inputs | 32-bit multiplexed address lines used for memory and peripheral addressing; A27–A0 active in standard mode, A31–A28 for extended addressing. |
| D31–D0 | Data Bus Bidirectional | 32-bit bidirectional data path supporting byte/word/long-word transfers; WE3–WE0 control individual byte lanes during writes. |
| CS6–CS0/RAS6–RAS0 | Chip Select / Row Address | Seven dedicated chip-select outputs with row-address capability for DRAM interfacing and peripheral decode. |
| IRQ7–IRQ1 | Interrupt Request Inputs | Seven-level vectored interrupt inputs supporting priority-based servicing; IRQ7 highest priority, IRQ1 lowest. |
| CLKO2–CLKO1 | System Clock Outputs | Two buffered clock outputs derived from internal PLL; used to drive external logic or peripheral clocks synchronously. |
| TRST, TCK, TMS, TDI, TDO | JTAG Test Interface | IEEE 1149.1 boundary-scan signals enabling production test, debug, and firmware update without intrusive probes. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous CPM | Offloads serial protocol processing (HDLC/SDLC/UART) from CPU32+, enabling real-time determinism and freeing host cycles for application logic. |
| Dual-Port RAM Sharing | 2 KB on-chip RAM accessible simultaneously by CPU32+ and CPM - eliminates inter-processor messaging latency and external memory bottlenecks. |
| Glueless Bus Interface | Supports direct connection to DRAM, SRAM, and peripherals without external logic - reduces BOM cost and PCB complexity in telecom line cards. |
| Dynamic Bus Sizing | Automatically adapts to 8-, 16-, or 32-bit peripheral widths via DSACKx handshake - simplifies integration with mixed-width legacy peripherals. |
| Background Debug Mode (BDM) | On-chip debug interface using BKPT/DSCLK/DSI/DSO pins - enables non-intrusive code stepping, register inspection, and flash programming in target systems. |
Applications
| Industrial Protocol Gateway | Legacy Telecom Line Card |
|---|---|
|
Use Scenario: Translation between Modbus RTU over RS-485 and TCP/IP Ethernet in factory automation networks. IC Role / Device Role / Timing Role: MC68360CRC25L acts as protocol translation engine - CPM handles serial framing and CRC, CPU32+ runs TCP/IP stack and bridging logic. Use Value: Eliminates need for separate UART and network controller ICs; dual-port RAM enables zero-copy packet forwarding between serial and Ethernet buffers. |
Use Scenario: Channelized T1/E1 interface card in carrier-class access multiplexers. IC Role / Device Role / Timing Role: MC68360CRC25L serves as line controller - SCCs manage HDLC framing and CAS signaling, SIM60 handles time-slot assignment and interrupt routing. Use Value: Deterministic CPM microcode execution ensures sub-125 µs jitter for T1 frame alignment, meeting GR-499-CORE timing compliance. |
| Secure SCADA Remote Terminal Unit | Ruggedized Vehicle Telematics Hub |
|
Use Scenario: Field-deployed RTU collecting sensor data via RS-232/485 and transmitting encrypted reports over cellular modem. IC Role / Device Role / Timing Role: MC68360CRC25L functions as secure host controller - CPU32+ runs lightweight crypto and scheduler, CPM manages modem AT command flow and data buffering. Use Value: Integrated JTAG and BDM allow field firmware updates and diagnostics without disassembly; wide-temp CPGA package supports –40°C to +85°C operation. |
Use Scenario: In-vehicle gateway aggregating CAN bus diagnostics, GPS NMEA streams, and GPRS telemetry for fleet management. IC Role / Device Role / Timing Role: MC68360CRC25L operates as multi-protocol concentrator - UARTs handle GPS/NMEA, SCCs manage proprietary vehicle bus protocols, SIM60 arbitrates bus access. Use Value: Hardware-assisted serial protocol handling reduces CPU load below 15% under peak traffic, extending ECU power budget and thermal margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68360CZP25 | Same CPU32+/SIM60/CPM architecture and pinout, but in 256-pin PQFP package instead of CPGA; identical electrical specs and microcode compatibility. | Preferred for cost-sensitive, non-ruggedized designs where ceramic packaging is unnecessary; requires PCB layout change due to different footprint and thermal profile. | Select MC68360CZP25 when RoHS compliance, reflow assembly, and lower unit cost outweigh need for hermetic sealing and extended temperature range. |
| MPC860TVR50B | PowerPC-based integrated communications processor with QUICC II architecture; higher clock speed (50 MHz), larger on-chip RAM (4 KB), and enhanced security features (DES, CRC-32 hardware). | Targets next-generation designs requiring higher throughput, Linux OS support, and cryptographic acceleration - not drop-in compatible due to ISA and bus protocol differences. | Choose MPC860TVR50B for new designs needing >2× serial throughput, POSIX-compliant RTOS, or hardware crypto - not for MC68360CRC25L replacement without firmware and hardware redesign. |
Compared with MC68360CZP25, the MC68360CRC25L offers superior thermal stability and hermetic reliability in harsh environments, while the MPC860TVR50B delivers architectural modernization at the cost of full software and hardware incompatibility - making MC68360CRC25L irreplaceable for fielded CPGA-based systems requiring long-term obsolescence mitigation.
Availability
MC68360CRC25L is available at Aetrix Electronics and suitable for industrial protocol gateways, legacy telecom line cards, secure SCADA RTUs, and ruggedized vehicle telematics hubs requiring stable component supply across extended product lifecycles.
Supply support for MC68360CRC25L 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 MC68360CRC25L belongs to Freescale's QUICC family - engineered specifically for deterministic, low-latency serial communications offload in telecom infrastructure and mission-critical industrial control systems.
FAQ
What is the maximum operating frequency of the MC68360CRC25L?
The MC68360CRC25L is rated for a maximum system clock frequency of 25 MHz, as specified in Section 10 (Electrical Characteristics) of the MC68360 User's Manual. This frequency governs CPU32+ instruction timing, CPM microcode execution speed, and peripheral baud rate generation. Operation above 25 MHz is not guaranteed and may result in timing violations or undefined behavior.
Does the MC68360CRC25L support JTAG debugging?
Yes, the MC68360CRC25L includes full IEEE 1149.1 JTAG Test Access Port (TAP) support, with dedicated TRST, TCK, TMS, TDI, and TDO pins. This enables boundary-scan testing, in-circuit emulation, and flash programming - detailed in Section 8 of the MC68360 User's Manual and validated in Freescale's BDM development tools.
How much on-chip memory does the MC68360CRC25L integrate?
The MC68360CRC25L integrates 2 KB of on-chip dual-port RAM, shared between the CPU32+ core and the Communications Processor Module (CPM). This memory is mapped into the internal address space and used for protocol descriptors, transmit/receive buffers, and microcode variables - as defined in Section 3.1 of the MC68360 User's Manual.
Is the MC68360CRC25L pin-compatible with other MC68360 variants?
The MC68360CRC25L shares identical pinout and signal definitions with other MC68360 devices in the CPGA package (e.g., MC68360CRC33L), differing only in rated clock speed and temperature grade. However, it is not pin-compatible with PQFP-packaged variants like MC68360CZP25 due to distinct land patterns and thermal pad configurations.
What communication protocols can the CPM in the MC68360CRC25L handle?
The Communications Processor Module (CPM) in the MC68360CRC25L supports HDLC, SDLC, BISYNC, UART, and transparent serial modes via its four Serial Communication Controllers (SCCs) and two UART channels. Protocol selection is configured through CPM parameter RAM and microcode - documented in Section 7 of the MC68360 User's Manual and validated in Freescale application notes AN2103 and AN2295.
MC68360CRC25L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 241-BEPGA
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 241-PGA (47.24x47.24)
- Additional Interfaces:
- SCC, SMC, SPI
MC68360CRC25L FAQ
1.How can I place an order for MC68360CRC25L through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68360CRC25L 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 MC68360CRC25L reliable?
The price and inventory of MC68360CRC25L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68360CRC25L is usually 5 days.
3.What payment methods are accepted for MC68360CRC25L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68360CRC25L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68360CRC25L?
MC68360CRC25L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68360CRC25L 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 MC68360CRC25L?
For technical support, including MC68360CRC25L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68360CRC25L requirements.
6.How does Aetrix verify that MC68360CRC25L is sourced from the original manufacturer or authorized distributors?
All MC68360CRC25L 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 MC68360CRC25L meets industry standards.
7.What is the process for return or replacement of MC68360CRC25L?
All MC68360CRC25L units undergo pre-shipment inspection (PSI). If there is an issue with MC68360CRC25L, 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 MC68360CRC25L part is unused and in its original packaging.
Return procedure for MC68360CRC25L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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