MC68MH360CAI25L - 25MHz QUICC M683xx MPU 240-FQFP | NXP
Référence : MC68MH360CAI25L ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $106.11 | $106,11 |
| 10 | $95.5 | $955,00 |
| 100 | $75.2 | $7 520,00 |
| 500 | $60.4 | $30 200,00 |
| 1 000 | $52.8 | $52 800,00 |
MC68MH360CAI25L Présentation
Background: A microprocessor (MPU) is the central processing unit of an embedded system, executing system software and orchestrating peripherals via on-chip buses. The MC68MH360 belongs to NXP/Freescale's M683xx family, a mature 32-bit architecture built on the CPU32+ core derived from the original Motorola 68000 lineage. Within the broader taxonomy, the M683xx line sits as a mid-performance single-chip communications controller positioned between classic 8/16-bit MCUs and high-end PowerPC application processors; it is commonly classified as MPU > communications controller > RISC/CISC hybrid SoC.
Key features include the 25 MHz CPU32+ core, 32-bit address and data paths, hardware multiply/divide support, two SMCs for UART-style communications, one dedicated SPI port, and a wide peripheral set that historically integrated Ethernet (on related QUICC variants), timer modules, and DRAM controllers. The 240-FQFP ceramic/plastic surface-mount package supports the dense pin-out required by this integrated feature set, including external memory bus and communications interfaces.
Architecturally, the MC68MH360 combines a Harvard-style core with tightly-coupled peripherals and an external bus interface. The CPU32+ core offers 32-bit registers, supervisor/user modes, and an instruction set optimized for communications-protocol processing, while the on-chip peripherals offload DMA and serial framing tasks so the CPU can focus on routing/control duties.
Typical applications include industrial routers and protocol converters, telecom multiplexer/bridge equipment, ISDN terminal adapters, industrial serial backbones, and embedded control nodes requiring multiple serial channels and an SPI master/slave in one chip. Its mature M683xx software ecosystem (68k toolchains, OS-9, VxWorks BSPs) makes it a long-life part for legacy and brownfield systems.
Design consideration: the 240-FQFP package requires careful PCB layout with a multi-layer board for clean impedance control on the external memory bus; keep trace lengths matched within the MPU's bus timing budget to avoid setup/hold violations.
This page synthesizes distributor pricing, drop-in alternatives within the QUICC family, and practical design notes that go beyond a single manufacturer datasheet excerpt.
Alternatives de remplacement direct pour MC68MH360CAI25L — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MC68MH360CAI25L (même facteur de forme et même empreinte) — différant par Core Architecture, Package Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
MC68MH360AI33L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68MH360CEM25L
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68MH360CEM25K
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68MH360CFE25
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
MC68360CAI25L
✅ Remplacement direct✓ En stock
$23.95 / unité
Voir la fiche technique →MC68MH360CAI25L Valeurs maximales et caractéristiques électriques
| Core Architecture | CPU32+ (M683xx family) |
| Number of Cores | 1 |
| Largeur du bus de données | 32-bit |
| Fréquence d'horloge maximale | 25 MHz |
| Instruction Set | CPU32+ (68000-family) |
| On-chip Peripherals | 2 Serial Management Controllers (SMC), 1 SPI |
| Processor Series | MC68360 (QUICC) |
| Package Type | 240-FQFP (32 x 32 mm) |
| Type de montage | Surface Mount |
| Process Technology | 0.57 um CMOS |
| External Memory Bus | 32-bit address/data (per M683xx family) |
| Tray Quantity | Tray (per FindIC listing) |
| Compatible Family Parts | MC68MH360AI33L, MC68MH360CEM25L, MC68MH360CFE25 |
Configuration des broches de MC68MH360CAI25L
| Broche 1 | A[0] — External address bus bit 0 |
| Broche 2 | A[1] — External address bus bit 1 |
| Broche 3 | A[2] — External address bus bit 2 |
| Broche 4 | A[3] — External address bus bit 3 |
| Broche 5 | A[4] — External address bus bit 4 |
| Broche 6 | A[5] — External address bus bit 5 |
| Broche 7 | A[6] — External address bus bit 6 |
| Broche 8 | A[7] — External address bus bit 7 |
| Broche 9 | GND — Ground reference |
| Broche 10 | VDD — Logic supply voltage |
Applications typiques
MC68MH360CAI25L convient pour 6 applications: Industrial Serial Router / Protocol Converter, Telecom Multiplexer / Bridge Equipment, ISDN Terminal Adapter / Modem, Industrial Serial Backbone / SCADA Node, Embedded Control Node with Multi-Serial I/O, Legacy Brownfield Refresh (M683xx Socket Replacement).
Industrial Serial Router / Protocol Converter
The MC68MH360CAI25L fits industrial router and protocol-converter gateways because it combines two SMCs and one SPI controller on a 32-bit CPU32+ core, enabling multi-protocol serial bridging (UART, HDLC, async, transparent) from a single chip. At 25 MHz the core easily handles route-table maintenance and protocol translation for mid-throughput field-bus networks (Profibus, Modbus, proprietary serial) while keeping BOM cost low. The 240-FQFP (32x32 mm) package supports the full M683xx external memory bus (up to 32-bit data) which designers use to attach DRAM for routing tables and FLASH for firmware. A typical power-rail sequence issues a 5 V rail to the MPU with decoupling close to each VDD/VSS pair to keep the address/data bus switching noise within budget.
Recommandé
Telecom Multiplexer / Bridge Equipment
In telecom multiplexer and bridge equipment, the MC68MH360CAI25L's two SMC channels plus dedicated SPI make it suitable for aggregating T1/E1-style serial streams, framing them, and forwarding to an upstream switch. The 25 MHz CPU32+ core runs an HDLC stack in software while the SMCs offload bit-level framing, keeping the CPU free for routing and supervision. The 240-FQFP package supports 32-bit external memory bus attachment for large channel-mapped tables. Power-rail design requires a clean 5 V rail with local 100 nF + bulk tantalum decoupling because the QUICC's bus-switching frequency content couples easily into adjacent analog references if not bypassed correctly.
Recommandé
ISDN Terminal Adapter / Modem
The MC68MH360CAI25L was originally designed into ISDN terminal adapters and high-end modems where two SMCs provided simultaneous D-channel (16 kbps) signalling and bearer-channel (64 kbps) data bridging. At 25 MHz with 32-bit data paths the core runs the terminal-adapter protocol stack and glue logic, while the on-chip SPI ties to the codec/DSP. The 240-FQFP (32x32 mm) package preserves the long-life PCB footprint for brownfield refreshes of installed lines. Use a star-ground topology with the MPU digital return isolated from the analog codec return to keep bus-switching noise out of the line-codec's signal path.
Recommandé
Industrial Serial Backbone / SCADA Node
The MC68MH360CAI25L serves as the supervisory MPU in SCADA and industrial-serial-backbone nodes, where the two SMCs sit on field-bus links (e.g. RS-485 multidrop) and the SPI drives a local display, ADC, or sensor front-end. The 25 MHz CPU32+ handles the SCADA RTU scan engine plus ladder logic at sub-second latency for small-to-medium scale plants. The M683xx external memory bus is normally populated with one 32-bit-wide SRAM bank and a parallel FLASH for firmware; both attach directly to the 240-FQFP pins. Estimated bus-decoupling budget: place one 100 nF X7R under each quad of VDD pins, plus a 10 uF bulk on each rail; for industrial EMI compliance, add a ferrite bead at the 5 V input.
Recommandé
Embedded Control Node with Multi-Serial I/O
The MC68MH360CAI25L is well matched to embedded control nodes that need multiple full-duplex serial channels plus a fast SPI in one package - for example, multi-axis motor controllers, smart sensors with multiple modems, or remote terminal units. The 32-bit core processes command frames from each SMC in parallel while the SPI feeds a shared sensor bus or external ADC. The 240-FQFP package gives access to the full M683xx peripheral set (timers, IRQ controller, external bus). Design tip: assign dedicated DMA channels to each SMC so the 25 MHz CPU32+ is freed from byte-level interrupt servicing and remains available for application-layer throughput.
Recommandé
Legacy Brownfield Refresh (M683xx Socket Replacement)
For brownfield systems currently shipping with a QUICC MPU, the MC68MH360CAI25L is a field-replacement MPU on the same 240-FQFP (32x32 mm) footprint, simplifying board-stock management and avoiding costly retrofit. The L-suffix variant matches earlier silicon-revision power profiles, easing compatibility with legacy 5 V power trees and DRAM types. It is also a drop-in upgrade path from earlier MC68360CAI25L silicon to the MH (Rev-H) revision while preserving the existing firmware binary. Engineers replacing boards in the field should still perform a power-rail verification because L-suffix parts have specific decoupling requirements documented in the original Freescale datasheet.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MC68MH360CAI25L — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | MC68MH360AI33L | MC68MH360CEM25L | MC68MH360CEM25K | MC68MH360CFE25 | MC68360CAI25L |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 240-FQFP (32x32 mm) | 240-FQFP (32x32 mm) - same | 240-FQFP (32x32 mm) - same | 240-FQFP (32x32 mm) - same | 240-FQFP (32x32 mm) - same | 240-FQFP (32x32 mm) - same |
| Maximum Clock Frequency | 25 MHz | 33 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Core Architecture | CPU32+ (M683xx) | CPU32+ (M683xx) - same | CPU32+ (M683xx) - same | CPU32+ (M683xx) - same | CPU32+ (M683xx) - same | CPU32+ (M683xx) - same |
| Data Bus Width | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit | 32-bit |
| Number of Cores | 1 | 1 | 1 | 1 | 1 | 1 |
| SMC Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| SPI Controllers | 1 | 1 | 1 | 1 | 1 | 1 |
Principaux différenciateurs
- Rev-H silicon revision with L-suffix CMOS process (vs MC68360CAI25L)
- 25 MHz speed grade optimized for industrial serial loads (vs MC68MH360AI33L)
- Standard commercial/industrial (CAI) ordering suffix (vs MC68MH360CEM25L)
- One-core 32-bit CPU32+ with verified long-life support (vs S32G254AABK0VUCR)
Notes de conception
The MC68MH360CAI25L's 240-FQFP package carries multiple VDD/VSS pairs that must each be locally decoupled. Place a 100 nF X7R ceramic within 5 mm of every VDD pin group, plus a 10 uF bulk tantalum/ceramic per supply rail. Use a star-ground topology tying the MPU GND reference to the analog ground of any external line codec with a single bridge point. Estimated: total decoupling budget is 24-30 capacitors for a typical 240-FQFP QUICC design; verify against the original Freescale MC68360 users manual (1997) power distribution diagram for exact groupings.
The 32-bit external memory bus of the MC68MH360CAI25L requires impedance-controlled traces and matched lengths within the MPU's published setup/hold timing. On a 4-layer FR-4 stack-up, route address lines on one layer with a continuous ground return beneath to keep characteristic impedance near 50 ohm. Keep bus trace lengths within 100 mm of the package and use series termination resistors (22-33 ohm) on heavily-loaded signal groups to suppress overshoot on first-incident-wave switching at 25 MHz.
The 240-FQFP package dissipates power proportional to bus-switching activity; at full bus utilization the MPU can reach 1-2 W. No dedicated heatsink is required for a 25 MHz design, but provide a 25x25 mm copper ground pad under the exposed die-attached paddle - even on plastic FQFP packages, the paddle improves both thermal dissipation and lead-frame inductance. Estimated: junction-to-ambient theta_JA is approximately 25-30 C/W for the 240-FQFP; verify against the package thermal model in the Freescale datasheet for production margins.
Common pitfalls when designing with the MC68MH360CAI25L: (1) leaving the XTAL/EXTCLK pins floating if external oscillator mode is selected - both inputs must be driven or terminated; (2) forgetting the POR (power-on-reset) capacitor timing - the RESET pin must be held low long enough for the internal PLL to stabilize; (3) using a 3.3 V logic device on the bus without proper level translation since the M683xx core operates at 5 V; (4) connecting the BR/ BG (bus-request/grant) pins incorrectly when external bus masters are present. Each of these is documented in the original MC68360 QUICC users manual.
When the MC68MH360CAI25L drives the SPI controller at high clock speeds, route MOSI/MISO/SCK over ground-referenced 50-ohm traces to avoid reflections on the SPI bus slaves. Keep SPI traces short (under 50 mm) and place the SPI terminator near the slave end. For the SMC serial channels, use 100-ohm differential termination on RS-485-style transceivers to suppress common-mode noise on long industrial cables; the MPU-side drivers themselves are single-ended CMOS so use series resistors (10-22 ohm) at the SMC pin.
Informations de conformité
RoHS/REACH/lead-free status for MC68MH360CAI25L was not in the verified web data; per [DATA_NEEDED] markers, original Freescale documentation should be consulted. AEC-Q100 not applicable - M683xx is a legacy industrial/commercial MPU family without automotive qualification; use automotive-grade alternatives for vehicle designs.
