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NXP Semiconductors MC68360AI25L
- Part No.:
- MC68360AI25L
- Manufacturer:
- NXP Semiconductors
- Category:
- Microprocessors
- Package:
- 240-BFQFP
- Datasheet:
-
MC68360AI25L.pdf
- Description:
- IC MPU M683XX 25MHZ 240FQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,347
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Product details
Overview
MC68360AI25L from Freescale Semiconductor is a 32-bit integrated microprocessor and communications controller featuring the CPU32+ core (4.5 MIPS at 25 MHz), four serial communication controllers (SCCs), two serial management controllers (SMCs), one SPI, dual TDM support, and a Communications Processor Module (CPM) for autonomous protocol handling - deployed in telecom access equipment, industrial gateways, and legacy protocol bridges.
For engineers reviewing the MC68360AI25L datasheet, MC68360AI25L pinout, MC68360AI25L application, or MC68360AI25L equivalent, key selection criteria include its 240-pin PQFP package with 20-mil pitch, 0–25 MHz operation across –40°C to +85°C, slave mode compatibility with MC68040-family processors, and CPM-based offload of HDLC/UART/AppleTalk/TDM traffic without CPU intervention.
Technical Context
The MC68360AI25L implements a three-module architecture: CPU32+ core (M68000-compatible, byte-misaligned addressing, background debug mode), System Integration Module (SIM60) with DRAM controller, bus arbitration, IEEE 1149.1 JTAG, and periodic timer, and Communications Processor Module (CPM) - a RISC co-processor managing all seven serial channels via 224 buffer descriptors and autonomous DMA transfers.
Its serial subsystem supports concurrent protocols: SCCs handle full-duplex HDLC/SDLC up to 2 Mbps, Ethernet on SCC1 (MC68EN360 variant only), AppleTalk, and transparent bit-stream modes; SMCs support UART and GCI; SPI operates in master/slave/multimaster; Time-Slot Assigner routes independent transmit/receive paths across two TDM buses (T1/CEPT/ISDN/PCM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32+ - fully M68000 instruction set compatible, delivers 4.5 MIPS @ 25 MHz, supports byte-misaligned 16-/32-bit accesses |
| Max Clock Frequency | 25 MHz - guaranteed operation over full industrial temperature range (–40°C to +85°C) |
| Serial Channels | 7 total: 4 SCCs + 2 SMCs + 1 SPI - each independently configurable for protocol, clocking, and framing |
| CPM RAM | 2.5 KB dual-port RAM - dedicated to CPM firmware, parameter storage, and buffer descriptor tables |
| External Bus Interface | Up to 32-bit data bus with dynamic sizing (8/16/32-bit), 32 address lines, 4 CAS/WE lines, boot CS with 8/16/32-bit memory options |
| Timers & DMA | 4 general-purpose timers (16- or 32-bit cascaded), 2 independent DMAs supporting 32-bit transfers, buffer chaining, and auto-packing |
| System Protection | SIM60 includes software watchdog, spurious interrupt monitor, double bus fault detection, and IEEE 1149.1 test access port |
Pinout & Package
MC68360AI25L is housed in a 240-pin Plastic Quad Flat Pack (PQFP) with 20-mil pitch, designed for surface-mount assembly and industrial thermal cycling. Pin functions are multiplexed across address/data bus, serial I/O, chip selects, clock inputs, and JTAG interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AD0–AD31 | Multiplexed Address/Data Bus | 32-bit bidirectional bus carrying address during first cycle, data thereafter; supports dynamic 8/16/32-bit peripheral interfacing |
| A0–A31 | Address Bus (non-multiplexed mode) | Full 32-bit address capability; A28–A31 always active regardless of bus size configuration |
| CS0–CS7 | Chip Select Outputs | Eight programmable chip selects with timing control; CS0 supports boot memory selection (8/16/32-bit EPROM/Flash/SRAM) |
| SCC1_Tx / SCC1_Rx | Serial Channel 1 Transmit/Receive | Dedicated differential or single-ended pins for SCC1; support Ethernet PHY interface (in MC68EN360 variant only) |
| TCLKA / TCLKB | TDM Clock Inputs | Independent transmit/receive clock sources for dual TDM bus operation; enable synchronous PCM/T1/ISDN frame alignment |
| TMS / TCK / TDI / TDO | JTAG Test Access Port | IEEE 1149.1-compliant boundary-scan interface for debugging, programming, and system-level test |
Key Features
| Feature | Design Value |
|---|---|
| CPU32+ Core with BDM | Enables real-time hardware breakpoints and non-intrusive debugging without halting CPM operations or serial traffic |
| CPM Offload Architecture | Removes serial protocol processing (HDLC framing, CRC generation, BD management) from main CPU, reducing host ISR load by >70% in multi-channel systems |
| Dual TDM Time-Slot Assigner | Routes any combination of four SCCs and two SMCs to two independent TDM buses with per-slot transmit/receive path selection and dynamic reconfiguration |
| Slave Mode & MC68040 Companion Mode | Allows QUICC to operate as intelligent peripheral under external MC68EC040/MC68040 control, sharing system bus with no glue logic and managing DRAM/burst cycles |
| 224 Buffer Descriptors (BDs) | Provides flexible ring- or list-based DMA buffering for all serial channels; supports scatter-gather, close-RxBd, and graceful stop transmit commands |
Applications
| Industrial Protocol Gateway | Legacy Telecom Access Node |
|---|---|
Use Scenario: Bridging Modbus RTU over RS-485 to TCP/IP via Ethernet while maintaining HDLC links to remote SCADA RTUs. IC Role / Device Role / Timing Role: MC68360AI25L acts as deterministic protocol translator: CPM handles Modbus HDLC framing and CRC, CPU32+ runs lightweight TCP stack, SCC1 drives Ethernet PHY. Use Value: Eliminates need for dual-processor design; single-chip solution sustains 20+ concurrent HDLC sessions and 10-Mbps Ethernet with <50 µs interrupt latency. |
Use Scenario: T1 line card in PBX or remote DSLAM aggregating six E1/T1 trunks with CAS/CCS signaling and GCI backplane interface. IC Role / Device Role / Timing Role: MC68360AI25L serves as TDM switch controller: Time-Slot Assigner maps SCC/SMC channels to TDM slots, SMCs interface to GCI transceivers, CPM manages CAS bit extraction. Use Value: Supports hot-swappable T1 modules with zero-frame-loss resynchronization; enables per-trunk HDLC/PPP encapsulation without host CPU involvement. |
| Embedded Network Bridge | Secure Serial Device Server |
Use Scenario: Isolating legacy RS-232/RS-422 field devices from enterprise Ethernet using AppleTalk-to-TCP tunneling and firewall-aware UART monitoring. IC Role / Device Role / Timing Role: MC68360AI25L functions as secure bridge controller: SCC2/SCC3 run AppleTalk and UART debug ports, SPI connects to serial EEPROM for configuration keys, CPM enforces packet filtering rules. Use Value: Provides deterministic 12-ms end-to-end latency for time-critical serial polling; retains full UART flow control and break detection across Ethernet encapsulation. |
Use Scenario: FIPS-compliant serial console server connecting out-of-band management ports (console, KVM) to encrypted TLS tunnels over 10/100 Ethernet. IC Role / Device Role / Timing Role: MC68360AI25L operates as crypto-adjacent I/O hub: SCC4 handles high-speed console UART, SIM60 watchdog ensures fail-safe reboot on TLS handshake timeout, CPU32+ executes lightweight TLS stack. Use Value: Enables secure remote diagnostics with <200 ms session establishment; maintains serial timing integrity even during TLS renegotiation bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar communications controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68EN360RC25 | Identical architecture but includes Ethernet MAC on SCC1; offered in 240-pin PGA (RC suffix) instead of PQFP; same 25 MHz/–40°C to +85°C rating | Required when native 10-Mbps Ethernet PHY interface is needed without external MAC; not pin-compatible due to PGA vs. PQFP packaging | Select MC68EN360RC25 only if Ethernet MAC integration and PGA mounting are mandatory; otherwise MC68360AI25L offers identical CPM/SCC/SMC functionality in surface-mount PQFP |
| MPC8260AZUUDB | PowerQUICC II processor with G2 core (266 MHz), QUICC Engine (enhanced CPM), integrated security engine; 550-pin PBGA package; requires different power sequencing and layout | Targets higher-throughput applications (e.g., VoIP gateways, DSLAM control planes) requiring cryptographic acceleration and Gigabit Ethernet support | Choose MPC8260AZUUDB for new designs needing >10× performance uplift and hardware crypto; MC68360AI25L remains optimal for cost-sensitive, low-power, legacy-protocol-dense deployments |
Compared with MC68EN360RC25, MC68360AI25L trades integrated Ethernet MAC for PQFP manufacturability and lower BOM cost; versus MPC8260AZUUDB, it delivers proven reliability in long-lifecycle industrial systems with simpler thermal/power design and direct M68k toolchain compatibility.
Availability
MC68360AI25L is available at Aetrix Electronics and suitable for industrial protocol gateways, telecom access nodes, embedded network bridges, and secure serial device servers requiring stable component supply across extended product lifecycles.
Supply support for MC68360AI25L 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 MC68360AI25L belongs to Freescale's M68300 family of integrated communications controllers, engineered specifically for deterministic, multi-protocol serial bridging in space-constrained, thermally demanding environments where CPU offload and long-term obsolescence resistance are critical.
FAQ
What is the operating temperature range for the MC68360AI25L?
The MC68360AI25L is rated for industrial operation from –40°C to +85°C. This specification is confirmed in Freescale's official MC68360 Package/Frequency Availability table, where the "I" suffix denotes industrial temperature grade, and the "25" indicates 25 MHz maximum frequency. The device maintains full functional compliance-including CPU32+ execution, CPM serial throughput, and SIM60 system protection features-across this entire range without derating.
Does the MC68360AI25L include an integrated Ethernet MAC?
No, the MC68360AI25L does not include an integrated Ethernet MAC. Ethernet capability is exclusive to the MC68EN360 variant (e.g., MC68EN360EM25 or MC68EN360RC25), which adds IEEE 802.3 MAC logic to SCC1. The MC68360AI25L retains all other QUICC features-four SCCs, two SMCs, SPI, CPM, and SIM60-but relies on external PHY/MAC for Ethernet connectivity, preserving pin compatibility and cost efficiency for non-Ethernet applications.
How many serial communication channels does the MC68360AI25L support?
The MC68360AI25L supports seven serial communication channels: four Serial Communication Controllers (SCCs), two Serial Management Controllers (SMCs), and one Serial Peripheral Interface (SPI). All channels operate concurrently and independently, with the CPM managing protocol-specific tasks (e.g., HDLC framing, UART start-stop detection, SPI master/slave handshaking) without CPU intervention-enabling simultaneous AppleTalk, HDLC, and SPI EEPROM access.
Is the MC68360AI25L pin-compatible with the MC68302?
No, the MC68360AI25L is not pin-compatible with the MC68302. As documented in the "Hardware Compatibility Issues" section of the MC68360 Product Brief, the MC68360 uses a 240-pin PQFP package with 20-mil pitch, whereas the MC68302 uses a 132-pin package with 25-mil pitch. Additionally, signal assignments, bus widths, and peripheral mappings differ significantly-requiring complete PCB redesign for migration from MC68302 to MC68360AI25L.
What development tools are supported for the MC68360AI25L?
The MC68360AI25L is supported by standard M68k development tools, including CodeWarrior Development Studio for ColdFire/MCF, GNU GCC cross-compilers targeting m68k-elf, and Freescale's legacy BDM-based debuggers (e.g., P&E Micro USB-ML-MPC). Its CPU32+ core executes the full M68000 instruction set, ensuring compatibility with existing assemblers, linkers, and RTOS kernels (e.g., VxWorks, RTEMS) ported to the M68300 family-no toolchain modification is required beyond memory map and peripheral register updates.
MC68360AI25L Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 240-BFQFP
- 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:
- 5.0V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Security Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 240-FQFP (32x32)
- Additional Interfaces:
- SCC, SMC, SPI
MC68360AI25L FAQ
1.How can I place an order for MC68360AI25L through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68360AI25L 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 MC68360AI25L reliable?
The price and inventory of MC68360AI25L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68360AI25L is usually 5 days.
3.What payment methods are accepted for MC68360AI25L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68360AI25L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68360AI25L?
MC68360AI25L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68360AI25L 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 MC68360AI25L?
For technical support, including MC68360AI25L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68360AI25L requirements.
6.How does Aetrix verify that MC68360AI25L is sourced from the original manufacturer or authorized distributors?
All MC68360AI25L 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 MC68360AI25L meets industry standards.
7.What is the process for return or replacement of MC68360AI25L?
All MC68360AI25L units undergo pre-shipment inspection (PSI). If there is an issue with MC68360AI25L, 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 MC68360AI25L part is unused and in its original packaging.
Return procedure for MC68360AI25L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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