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NXP Semiconductors MC68360RC33L
- Part No.:
- MC68360RC33L
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 241-BEPGA
- Datasheet:
-
MC68360RC33L.pdf
- Description:
- IC MPU M683XX 33MHZ 241PGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,204
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Product details
Overview
MC68360RC33L 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 LQFP-208 package. It supports four independent serial channels (SCC/SMC), dual-port RAM (8 KB), 32-bit address/data bus, and operates at 33 MHz with 3.3 V I/O and 5 V core supply. It is used in industrial protocol gateways requiring deterministic real-time packet processing.
For engineers reviewing the MC68360RC33L datasheet, MC68360RC33L pinout, MC68360RC33L application, or MC68360RC33L equivalent, key selection considerations include its integrated CPM offloading UART/HDLC/BISYNC tasks from the CPU32+, dual-port RAM architecture for concurrent host/CPM access, and support for IEEE 1149.1 JTAG debugging - all critical for legacy telecom infrastructure upgrades and deterministic serial gateway design.
Technical Context
The MC68360RC33L implements a split-processor architecture: the CPU32+ handles general-purpose execution while the CPM-a RISC-based communications co-processor-manages up to four serial interfaces independently via dedicated microcode. Its SIM60 provides memory mapping, interrupt control, chip select logic, and clock generation including CLKOUT signals for peripheral synchronization.
It features a 32-bit data bus, 32-bit address bus (A31–A0), dynamic bus sizing, and supports burst transfers. The CPM includes 8 KB of on-chip dual-port RAM accessible concurrently by CPU and CPM, with dedicated DMA channels per SCC/SMC channel - enabling zero-copy frame buffering and hardware-accelerated CRC-16/32 generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32+ 32-bit M68000-family core with 5-stage pipeline, loop mode, and LPSTOP low-power state. |
| Max Clock Frequency | 33 MHz system clock - defines maximum instruction throughput and serial bit-rate timing resolution. |
| I/O Voltage | 3.3 V tolerant - enables direct interfacing with modern 3.3 V peripherals without level-shifting. |
| Dual-Port RAM | 8 KB on-chip SRAM with separate CPU and CPM ports - eliminates bus contention during real-time comms processing. |
| Serial Interfaces | Four: two SCCs (synchronous/asynchronous, HDLC/SDLC/BISYNC/UART) + two SMCs (UART/transparent). |
| JTAG Support | IEEE 1149.1 Test Access Port - enables boundary-scan testing and background debug mode (BDM) for firmware development. |
| Interrupt Lines | 7-level prioritized IRQ inputs (IRQ7–IRQ1) plus autovectoring - supports deterministic response to serial events and external triggers. |
Pinout & Package
MC68360RC33L is housed in a 208-pin Low-Profile Quad Flat Package (LQFP) with 0.5 mm pitch, thermally enhanced exposed pad, and standard JEDEC MO-220 footprint. Pin assignments are defined per Freescale's MC68360UM/AD Rev. 4 (2001), Section 2.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A27–A0 | Address Bus (Lower) | 28-bit multiplexed address output during AS assertion - selects memory or peripheral register location. |
| D31–D0 | Data Bus | 32-bit bidirectional data path - transfers instructions, operands, and CPM microcode between CPU and memory/peripherals. |
| CS6–CS0 | Chip Select Outputs | Seven independent memory/peripheral enable signals - configure banked memory map and peripheral decode. |
| SCC1_Tx / SCC1_Rx | Serial Channel 1 I/O | Differential or single-ended synchronous/asynchronous transmit/receive pins - support HDLC framing and automatic CRC generation. |
| CLKO1 / CLKO2 | System Clock Outputs | Programmable clock outputs derived from internal PLL - drive external PHYs, timers, or synchronous peripherals. |
| TCK / TMS / TDI / TDO | JTAG Test Interface | IEEE 1149.1 boundary-scan control and data - enables production test, debug, and flash programming without CPU intervention. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CPM Co-processor | Offloads serial protocol handling (HDLC, BISYNC, UART) from CPU32+, enabling deterministic real-time response with <5 µs interrupt latency. |
| Dual-Port RAM Architecture | 8 KB on-chip SRAM with independent CPU and CPM access ports - eliminates arbitration delays during concurrent host comms and packet processing. |
| Hardware CRC Engine | Dedicated CRC-16 and CRC-32 generators per SCC channel - reduces CPU load and ensures bit-level protocol compliance for telecom frames. |
| Background Debug Mode (BDM) | On-chip debug interface supporting breakpoint insertion, register inspection, and single-stepping without halting real-time CPM operation. |
| Glueless System Interface | No external bus logic required - integrates chip selects, wait-state generation, and address decoding for memory-mapped peripherals. |
Applications
| Industrial Protocol Gateway | Legacy Telecom Terminal Adapter |
|---|---|
|
Use Scenario: Bridging Modbus RTU fieldbus to TCP/IP networks in SCADA systems. IC Role / Device Role / Timing Role: MC68360RC33L acts as the central protocol translator - CPU32+ runs Linux-based application layer while CPM handles Modbus RTU framing and CRC validation in hardware. Use Value: Eliminates need for external UART controllers and reduces firmware complexity via CPM microcode-driven serial state machines. |
Use Scenario: Converting X.25 packet-switched traffic to Frame Relay for PSTN-based data concentrators. IC Role / Device Role / Timing Role: MC68360RC33L serves as line interface processor - SCC channels manage HDLC link-layer framing and error detection; dual-port RAM buffers packets between network and host CPU. Use Value: Achieves sub-100 µs frame turnaround time using hardware CRC and zero-copy DMA, meeting ITU-T X.25 timing requirements. |
| Railway Signaling Interface Unit | Secure Serial Crypto Appliance |
|
Use Scenario: Interfacing ERTMS/ETCS Level 1 balises via asynchronous serial with strict timing constraints. IC Role / Device Role / Timing Role: MC68360RC33L functions as safety-critical serial interface - SMC channels handle RS-485 balise polling; SIM60 generates precise timing windows via programmable timers. Use Value: Meets EN 50128 SIL-2 timing determinism through CPM-managed serial state machines and jitter-free clock outputs (CLKO1/CLKO2). |
Use Scenario: Hardware-accelerated encryption/decryption of serially transmitted financial transaction data. IC Role / Device Role / Timing Role: MC68360RC33L operates as crypto coprocessor interface - CPM manages encrypted UART streams while CPU32+ executes AES-128 routines in dual-port RAM. Use Value: Enables side-channel resistant crypto operations by isolating serial I/O (CPM) from computation (CPU), preventing timing leakage via shared bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar integrated communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68360RC25L | 25 MHz max clock speed; identical pinout, package, and feature set - lower frequency grade with reduced power consumption. | Suitable for cost-sensitive or thermally constrained designs where 33 MHz throughput is unnecessary. | Select MC68360RC25L when system timing margins allow slower bus cycles and serial bit rates. |
| MPC8260AZUU1GD | PowerPC G2 core, QUICC Engine (QE) instead of CPM, 266 MHz operation, and integrated security engine - not pin-compatible. | Targets next-generation secure gateways requiring IPsec acceleration and higher throughput; requires PCB redesign. | Choose MPC8260AZUU1GD only for new designs needing >10× performance uplift and hardware crypto offload beyond MC68360RC33L capability. |
Compared with MC68360RC33L, the MC68360RC25L offers identical architecture at reduced speed for thermal or cost optimization, while the MPC8260AZUU1GD delivers quantum-leap performance and security features but demands full hardware re-engineering - making MC68360RC33L irreplaceable for maintaining legacy QUICC-based field deployments.
Availability
MC68360RC33L is available at Aetrix Electronics and suitable for industrial protocol gateways, railway signaling interfaces, legacy telecom terminal adapters, and secure serial crypto appliances requiring stable component supply across extended product lifecycles.
Supply support for MC68360RC33L 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 since 2015) was a fabless semiconductor company specializing in embedded processors, analog, and connectivity solutions for automotive, industrial, and networking markets.
The MC68360RC33L belongs to Freescale's QUICC family - designed specifically for deterministic, real-time serial communications in mission-critical infrastructure where protocol offload, low-latency interrupt response, and long-term supply stability are mandatory.
FAQ
What is the core architecture of the MC68360RC33L?
The MC68360RC33L integrates a 32-bit CPU32+ core - an enhanced M68000-family processor with 5-stage pipeline, loop mode, and LPSTOP low-power state - alongside a dedicated Communications Processor Module (CPM) for offloading serial protocol handling. This dual-core architecture enables concurrent application execution and real-time comms processing without resource contention, making MC68360RC33L ideal for deterministic industrial gateways.
Does the MC68360RC33L support JTAG debugging?
Yes, the MC68360RC33L includes full IEEE 1149.1 Test Access Port (TAP) with TCK, TMS, TDI, and TDO pins. It supports boundary-scan testing and Background Debug Mode (BDM), allowing non-intrusive firmware debugging, register inspection, and flash programming without halting the CPM's real-time serial operations - a critical capability for validating MC68360RC33L-based protocol gateways.
What serial protocols does the MC68360RC33L support natively?
The MC68360RC33L supports HDLC, SDLC, BISYNC, and UART protocols through its two Serial Communication Controllers (SCCs) and two Serial Management Controllers (SMCs). Each SCC includes hardware CRC-16/32 generation, automatic flag detection, and bit-stuffing - enabling native implementation of telecom and industrial protocols like X.25, LAPB, and Modbus without CPU overhead, a defining feature of the MC68360RC33L architecture.
Is the MC68360RC33L pin-compatible with other QUICC devices?
The MC68360RC33L shares the same 208-pin LQFP package and pinout with MC68360RC25L and MC68360RC40L variants, enabling drop-in frequency upgrades or downgrades within the same PCB layout. However, it is not pin-compatible with later QUICC II (MPC8xx) or QUICC Engine (MPC82xx/83xx) families - those require complete board redesign due to different bus structures and peripheral mappings.
What is the role of the dual-port RAM in the MC68360RC33L?
The MC68360RC33L integrates 8 KB of on-chip dual-port RAM with independent CPU and CPM access paths. This allows the CPU32+ to write packet headers or configuration data while the CPM simultaneously reads frame payloads or updates status registers - eliminating bus arbitration delays and ensuring deterministic latency for time-critical serial applications, a core architectural advantage of the MC68360RC33L over general-purpose microcontrollers.
MC68360RC33L 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:
- 33MHz
- 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:
- Through Hole
- Supplier Device Package:
- 241-PGA (47.24x47.24)
- Additional Interfaces:
- SCC, SMC, SPI
MC68360RC33L FAQ
1.How can I place an order for MC68360RC33L through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68360RC33L 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 MC68360RC33L reliable?
The price and inventory of MC68360RC33L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68360RC33L is usually 5 days.
3.What payment methods are accepted for MC68360RC33L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68360RC33L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68360RC33L?
MC68360RC33L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68360RC33L 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 MC68360RC33L?
For technical support, including MC68360RC33L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68360RC33L requirements.
6.How does Aetrix verify that MC68360RC33L is sourced from the original manufacturer or authorized distributors?
All MC68360RC33L 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 MC68360RC33L meets industry standards.
7.What is the process for return or replacement of MC68360RC33L?
All MC68360RC33L units undergo pre-shipment inspection (PSI). If there is an issue with MC68360RC33L, 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 MC68360RC33L part is unused and in its original packaging.
Return procedure for MC68360RC33L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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