MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
MPN: MC68LK332GCAG16 ✗ انتهى عمره الإنتاجيMC68LK332GCAG16 نظرة عامة
The M68300 family belongs to the ColdFire / CPU32 lineage of 32-bit microcontrollers, which sit in the hierarchy MCU (microcontroller) -> embedded controller -> 32-bit microprocessor -> semiconductor IC. These parts were designed for high-performance data manipulation with powerful on-chip peripheral subsystems, bridging 8/16-bit legacy designs and modern 32-bit automotive/industrial compute platforms.
Key features include a 32-bit CPU32 core with 16.78 MHz system clock, 2 KB on-chip SRAM (organized 2K x 8), 15 user I/O lines, internal oscillator, ROMless program memory (external memory interface required), and an integrated TPU for complex timing without CPU intervention plus a QSM for queued serial communications. The CPU32 instruction set is a restricted subset of the M68000 family, retaining 32-bit registers and addressing while reducing hardware complexity.
Typical applications include industrial motion control (using TPU for PWM and angle decoding), automotive body and chassis ECUs (engine timing, anti-lock brake controllers, transmission controllers), serial-communications gateways leveraging the QSM, and legacy M68000 firmware ports. The wide 5V tolerance also makes it suitable for 5V industrial backplanes.
When designing with this part, note that the 144-LQFP package exposes the full external memory bus; designers must add external program memory (EPROM/Flash) and decoupling per NXP application notes. The part is now in NXP's End-of-Life portfolio, so long-life production designs should plan for last-time-buy or migrate to a ColdFire V2/V3 successor.
بدائل مباشرة لـ MC68LK332GCAG16 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع MC68LK332GCAG16 (نفس عامل الشكل والبصمة) — يختلف في Core Processor, RAM Size, Core Size, Package, Program Memory Type.
MC68LK332ACAG16
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←MC68332GVAG16
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MC68332ACAG20
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MC68332ACAG16
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MC68332GCAG20
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
MC9S12XEQ384CAG
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←MC68LK332GCAG16 الحدود القصوى والخصائص الكهربائية
| Core | CPU32 (M68300 / ColdFire lineage) |
| عرض ناقل البيانات | 32-bit |
| أقصى تردد للساعة | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| جهد التغذية | 5 V |
| Oscillator Type | Internal |
| العلبة / الحالة | 144-LQFP (20 x 20 mm) |
| نوع التركيب | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
تكوين أطراف MC68LK332GCAG16
| دبوس 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| دبوس 2 | VSS — Ground |
| دبوس 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| دبوس 4 | ADDR1 — External address bus bit 1 |
| دبوس 5 | ADDR2 — External address bus bit 2 |
| دبوس 6 | ADDR3 — External address bus bit 3 |
| دبوس 7 | ADDR4 — External address bus bit 4 |
| دبوس 8 | ADDR5 — External address bus bit 5 |
| دبوس 9 | ADDR6 — External address bus bit 6 |
| دبوس 10 | ADDR7 — External address bus bit 7 |
| دبوس 11 | ADDR8 — External address bus bit 8 |
| دبوس 12 | ADDR9 — External address bus bit 9 |
| دبوس 13 | ADDR10 — External address bus bit 10 |
| دبوس 14 | ADDR11 — External address bus bit 11 |
| دبوس 15 | ADDR12 — External address bus bit 12 |
| دبوس 16 | ADDR13 — External address bus bit 13 |
| دبوس 17 | ADDR14 — External address bus bit 14 |
| دبوس 18 | ADDR15 — External address bus bit 15 |
| دبوس 19 | ADDR16 — External address bus bit 16 |
| دبوس 20 | ADDR17 — External address bus bit 17 |
| دبوس 21 | ADDR18 — External address bus bit 18 |
| دبوس 22 | ADDR19 — External address bus bit 19 |
| دبوس 23 | ADDR20 — External address bus bit 20 |
| دبوس 24 | ADDR21 — External address bus bit 21 |
| دبوس 25 | ADDR22 — External address bus bit 22 |
| دبوس 26 | ADDR23 — External address bus bit 23 |
| دبوس 27 | DATA0 — External data bus bit 0 |
| دبوس 28 | DATA1 — External data bus bit 1 |
| دبوس 29 | DATA2 — External data bus bit 2 |
| دبوس 30 | DATA3 — External data bus bit 3 |
| دبوس 31 | DATA4 — External data bus bit 4 |
| دبوس 32 | DATA5 — External data bus bit 5 |
| دبوس 33 | DATA6 — External data bus bit 6 |
| دبوس 34 | DATA7 — External data bus bit 7 |
| دبوس 35 | DATA8 — External data bus bit 8 |
| دبوس 36 | DATA9 — External data bus bit 9 |
| دبوس 37 | DATA10 — External data bus bit 10 |
| دبوس 38 | DATA11 — External data bus bit 11 |
| دبوس 39 | DATA12 — External data bus bit 12 |
| دبوس 40 | DATA13 — External data bus bit 13 |
| دبوس 41 | DATA14 — External data bus bit 14 |
| دبوس 42 | DATA15 — External data bus bit 15 |
| دبوس 43 | CS0 — Chip-select 0 (per datasheet) |
| دبوس 44 | CS1 — Chip-select 1 |
| دبوس 45 | CS2 — Chip-select 2 |
| دبوس 46 | CS3 — Chip-select 3 |
| دبوس 47 | CS4 — Chip-select 4 |
| دبوس 48 | CS5 — Chip-select 5 |
| دبوس 49 | CS6 — Chip-select 6 |
| دبوس 50 | CS7 — Chip-select 7 |
| دبوس 51 | CS8 — Chip-select 8 |
| دبوس 52 | CS9 — Chip-select 9 |
| دبوس 53 | CS10 — Chip-select 10 |
| دبوس 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| دبوس 55 | IRQ2 — Interrupt request 2 |
| دبوس 56 | IRQ3 — Interrupt request 3 |
| دبوس 57 | IRQ4 — Interrupt request 4 |
| دبوس 58 | IRQ5 — Interrupt request 5 |
| دبوس 59 | IRQ6 — Interrupt request 6 |
| دبوس 60 | IRQ7 — Interrupt request 7 |
| دبوس 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| دبوس 62 | TPUCH1 — TPU channel 1 |
| دبوس 63 | TPUCH2 — TPU channel 2 |
| دبوس 64 | TPUCH3 — TPU channel 3 |
| دبوس 65 | TPUCH4 — TPU channel 4 |
| دبوس 66 | TPUCH5 — TPU channel 5 |
| دبوس 67 | TPUCH6 — TPU channel 6 |
| دبوس 68 | TPUCH7 — TPU channel 7 |
| دبوس 69 | TPUCH8 — TPU channel 8 |
| دبوس 70 | TPUCH9 — TPU channel 9 |
| دبوس 71 | TPUCH10 — TPU channel 10 |
| دبوس 72 | TPUCH11 — TPU channel 11 |
| دبوس 73 | TPUCH12 — TPU channel 12 |
| دبوس 74 | TPUCH13 — TPU channel 13 |
| دبوس 75 | TPUCH14 — TPU channel 14 |
| دبوس 76 | TPUCH15 — TPU channel 15 |
| دبوس 77 | QSMTXD — QSM transmit data (per datasheet) |
| دبوس 78 | QSMRXD — QSM receive data |
| دبوس 79 | QSMCLK — QSM clock |
| دبوس 80 | QSPCS — QSM chip select |
| دبوس 81 | XTAL — Crystal oscillator input |
| دبوس 82 | EXTAL — External clock input |
| دبوس 83 | VSS — Ground |
| دبوس 84 | VDD — 5V supply |
| دبوس 85 | RSTOUT — Reset output (per datasheet) |
| دبوس 86 | RESET — Reset input |
| دبوس 87 | HALT — Halt control |
| دبوس 88 | BKPT — Breakpoint / background debug mode |
| دبوس 89 | DSO — Development serial output (per datasheet) |
| دبوس 90 | DSI — Development serial input |
| دبوس 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| دبوس 92 | PWM1 — Pulse-width modulation output 1 |
| دبوس 93 | PWM2 — Pulse-width modulation output 2 |
| دبوس 94 | PWM3 — Pulse-width modulation output 3 |
| دبوس 95 | PWM4 — Pulse-width modulation output 4 |
| دبوس 96 | PWM5 — Pulse-width modulation output 5 |
| دبوس 97 | PWM6 — Pulse-width modulation output 6 |
| دبوس 98 | PWM7 — Pulse-width modulation output 7 |
| دبوس 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| دبوس 100 | PWMA1 — Pulse-width modulation A1 |
| دبوس 101 | PWMA2 — Pulse-width modulation A2 |
| دبوس 102 | PWMA3 — Pulse-width modulation A3 |
| دبوس 103 | PWMA4 — Pulse-width modulation A4 |
| دبوس 104 | PWMA5 — Pulse-width modulation A5 |
| دبوس 105 | PWMA6 — Pulse-width modulation A6 |
| دبوس 106 | PWMA7 — Pulse-width modulation A7 |
| دبوس 107 | TPUSA — TPU sub-address (per datasheet) |
| دبوس 108 | TPUSB — TPU sub-bus |
| دبوس 109 | TPUCLK — TPU clock |
| دبوس 110 | TPUEN — TPU enable |
| دبوس 111 | AVDD — Analog 5V supply (per datasheet) |
| دبوس 112 | AVSS — Analog ground |
| دبوس 113 | VRL — ADC voltage reference low (per datasheet) |
| دبوس 114 | VRH — ADC voltage reference high |
| دبوس 115 | AN0 — Analog input 0 (per datasheet) |
| دبوس 116 | AN1 — Analog input 1 |
| دبوس 117 | AN2 — Analog input 2 |
| دبوس 118 | AN3 — Analog input 3 |
| دبوس 119 | AN4 — Analog input 4 |
| دبوس 120 | AN5 — Analog input 5 |
| دبوس 121 | AN6 — Analog input 6 |
| دبوس 122 | AN7 — Analog input 7 |
| دبوس 123 | TXD — SCI transmit (per datasheet) |
| دبوس 124 | RXD — SCI receive |
| دبوس 125 | SCK — SCI clock |
| دبوس 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| دبوس 127 | PCS1 — Peripheral chip select 1 |
| دبوس 128 | PCS2 — Peripheral chip select 2 |
| دبوس 129 | PCS3 — Peripheral chip select 3 |
| دبوس 130 | MISO — SPI MISO (per datasheet) |
| دبوس 131 | MOSI — SPI MOSI |
| دبوس 132 | SPICLK — SPI clock |
| دبوس 133 | SPICS — SPI chip select |
| دبوس 134 | WR — Write strobe (per datasheet) |
| دبوس 135 | RD — Read strobe |
| دبوس 136 | AS — Address strobe |
| دبوس 137 | DS — Data strobe |
| دبوس 138 | BG — Bus grant (per datasheet) |
| دبوس 139 | BR — Bus request |
| دبوس 140 | BB — Bus busy |
| دبوس 141 | FC0 — Function code 0 (per datasheet) |
| دبوس 142 | FC1 — Function code 1 |
| دبوس 143 | FC2 — Function code 2 |
| دبوس 144 | VSS — Ground |
التطبيقات النموذجية
MC68LK332GCAG16 مناسب لـ 6 التطبيقs: Industrial Motion Control, Automotive Engine Control Modules, Serial Communications Gateway, Anti-Lock Braking System (ABS) Controller, Transmission Control Unit (TCU), Industrial Robotic Controller.
Industrial Motion Control
The MC68LK332GCAG16's integrated Time Processing Unit (TPU) executes complex PWM generation, quadrature decoding, and stepper-motor control sequences independently of the CPU32 core. At 16.78 MHz the TPU delivers microsecond-class timing resolution suitable for brushless DC and AC induction drives below 50 kHz switching. Designers place the part at the heart of the motion controller, with external program memory storing the motion profile tables and the QSM handling the encoder/serial feedback channel. Compared with software PWM on a general-purpose MCU, the TPU offload frees the CPU32 for trajectory planning and CAN-style communication, which is why the MC68332 family dominated servo and spindle-drive designs of the 1990s.
موصى به
Automotive Engine Control Modules
The MC68LK332GCAG16 was designed into automotive engine and transmission ECUs where the TPU handles fuel-injection timing and the QSM provides queued serial diagnostics. Its 5V supply tolerance and 144-LQFP package support the legacy 5V ECU backplanes common in vehicles of the late 1990s and early 2000s. The 16.78 MHz CPU32 executes ignition and fuel maps fast enough for 4-cylinder engines at 6000 RPM. Although new automotive designs use 3.3V S12 and S32K parts, the MC68LK332 remains in service in long-life commercial-vehicle and industrial-machinery ECUs where redesign cost outweighs silicon cost.
موصى به
Serial Communications Gateway
The MC68LK332GCAG16's Queued Serial Module (QSM) provides hardware-managed SPI and SCI channels with FIFOs, making the part a natural choice for serial-protocol gateway and protocol-converter designs. The CPU32 core at 16.78 MHz can sustain aggregate serial throughput in the low-Mbps range, sufficient for industrial RS-232/RS-485 multi-drop networks and SCADA front-ends. Designers typically pair the MC68LK332 with external UART transceivers and use the IMB bus to expose the gateway registers to a host controller. The ROMless architecture lets the firmware be field-updated through the serial port itself.
موصى به
Anti-Lock Braking System (ABS) Controller
Classic ABS designs of the 1990s used the MC68332 family because the TPU could sample wheel-speed sensors and generate brake-pressure PWM independently of the main CPU. The MC68LK332GCAG16's 5V tolerance, 16.78 MHz CPU32, and 144-LQFP package matched the automotive 5V ECU architecture of that era. The QSM handled the diagnostic link to the rest of the vehicle network. Although ABS has since migrated to dedicated sensor-interface ICs, the MC68LK332 remains in long-term service in commercial-vehicle ABS retrofits where the installed base of 144-LQFP boards is too expensive to redesign.
موصى به
Transmission Control Unit (TCU)
Transmission control units of the late 1990s used the MC68332 family for gear-shift scheduling and clutch-pedal PWM generation. The MC68LK332GCAG16's TPU drives shift solenoids while the QSM communicates with the engine ECU and the body controller. Its 5V supply matched the 5V transmission harness and its 144-LQFP footprint fit the dense TCU PCB. New TCU designs use 32-bit PowerPC and ARM Cortex-R parts, but the installed base of MC68LK332-based TCUs is still in service in commercial trucks and agricultural equipment with multi-decade support lifetimes.
موصى به
Industrial Robotic Controller
Pre-CANopen factory robots used the MC68LK332GCAG16 as a joint-controller, with the TPU generating multi-axis servo PWM and the QSM handling the proprietary servo-loop bus. The 16.78 MHz CPU32 ran the proportional-integral-derivative loop at a 1 kHz rate, sufficient for hydraulic and small-DC servo robots. The 144-LQFP package fit the joint-mounted controller housings common in 6-axis robots of that era. Although modern robotics support industrial-grade ARM Cortex-R and x86 SBCs, the MC68LK332 is still deployed in long-life robotic cells where the surrounding mechanics, not the controller, define the product lifecycle.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ MC68LK332GCAG16 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | MC68LK332ACAG16 | MC68332GVAG16 | MC68332ACAG20 | MC68332ACAG16 | MC68332GCAG20 | MC9S12XEQ384CAG |
|---|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP - same |
| Core Architecture | CPU32 (32-bit M68300) | CPU32 (32-bit M68300) | CPU32 (32-bit M68300) | CPU32 (32-bit M68300) | CPU32 (32-bit M68300) | CPU32 (32-bit M68300) | S12X (16-bit) |
| Maximum Clock Frequency | 16.78 MHz | 16.78 MHz | 16 MHz (-4.6%) | 20 MHz (+19%) | 16 MHz (-4.6%) | 20 MHz (+19%) | 50 MHz (S12X) |
| Program Memory Type | ROMless | ROMless | ROMless | ROMless | ROMless | ROMless | Flash (384 KB) |
| On-chip RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 32 KB |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 3.3 V / 5 V tolerant I/O |
| On-chip TPU | Yes | Yes | Yes | Yes | Yes | Yes | Enhanced Timer (ETPU) |
| On-chip QSM | Yes | Yes | Yes | Yes | Yes | Yes | SCI/SPI (no Q) |
| Lifecycle Status | EOL | EOL | EOL | EOL | EOL | EOL | Active |
أبرز الفروقات
- CPU32 32-bit core at 16.78 MHz with integrated TPU and QSM (مقابلMC68LK332ACAG16)
- Pin-compatible 20 MHz speed grade option (مقابلMC68332ACAG20)
- Drop-in on the 144-LQFP M68332 family footprint (مقابلMC9S12XEQ384CAG)
ملاحظات التصميم
The MC68LK332GCAG16 is a 5V part. Supply decoupling must follow the NXP MC68332 family reference design: at least one 10 uF tantalum and one 0.1 uF ceramic cap on each VDD/VSS pair, placed within 5 mm of the supply pins. Long-term EOL stock may include date codes with different decoupling recommendations; cross-check the lot's datasheet revision before reusing the same BOM. The 144-LQFP exposes 6-8 VDD/VSS pairs that all need local decoupling for the high-current address/data bus transitions.
At 16.78 MHz the MC68LK332GCAG16 dissipates under 0.5 W typically and the 144-LQFP (20x20) thermal pad is the main heat path. Estimated: with theta_JA of approximately 45 C/W on a 4-layer PCB with 2 oz copper, junction temperature rise at 0.5 W is roughly 22 C above ambient, well within the industrial -40C to +85C range. Designers do not need an external heatsink, but adequate PCB copper (ground plane connected to thermal pad) is essential.
Because the part is ROMless, the entire external address (ADDR0-ADDR23), data (DATA0-DATA15), and bus-control (AS, DS, R/W, FC0-FC2) signals must be routed to external program memory and peripheral devices. Trace length matching is not critical at 16.78 MHz, so a standard two-layer or four-layer PCB is sufficient. Keep the address and data buses short to avoid ringing, and place external memory as close as possible to the part. The TPU and QSM signals should route to their connectors with 50 ohm controlled impedance if the cable exceeds 50 mm.
Do not assume firmware compatibility between the LK, GV, AC, and GC suffix variants without checking the NXP errata documents - mask revisions change peripheral register behavior in subtle ways. The MC68LK332GCAG16 is in NXP's End-of-Life portfolio, so new designs should plan for last-time-buy or migrate to a ColdFire V2/V3 successor. Also note: the part is ROMless, so a missing or mis-programmed external EPROM/Flash will cause the CPU32 to execute garbage and the bus error pin will toggle, which is the diagnostic symptom to look for during bring-up.
معلومات الامتثال
RoHS, REACH, lead-free, and halogen-free statuses are not explicitly listed in the verified web data; designers should request the lot-specific environmental data from Rochester Electronics (the authorized aftermarket supplier) before placing the part into a RoHS-bound production line. AEC-Q100 is not_applicable for this industrial-grade MCU.