MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
MPN: MC68LK332GCAG16 ✗ پایان تولیدMC68LK332GCAG16 نمای کلی
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.
جایگزین‌های drop-in برای MC68LK332GCAG16 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای MC68LK332GCAG16 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Core Processor, RAM Size, Core Size, Package, Program Memory Type.
MC68LK332ACAG16
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68332GVAG16
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC68332ACAG20
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC68332ACAG16
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC68332GCAG20
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MC9S12XEQ384CAG
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68LK332GCAG16 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Core | CPU32 (M68300 / ColdFire lineage) |
| عرض گذرگاه داده | 32-bit |
| حداکثر فرکانس کلاک | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| ولتاژ تغذیه | 5 V |
| Oscillator Type | Internal |
| بسته‌بندی / کیس | 144-LQFP (20 x 20 mm) |
| نوع نصب | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
پیکربندی پین MC68LK332GCAG16
| پین 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| پین 2 | VSS — Ground |
| پین 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| پین 4 | ADDR1 — External address bus bit 1 |
| پین 5 | ADDR2 — External address bus bit 2 |
| پین 6 | ADDR3 — External address bus bit 3 |
| پین 7 | ADDR4 — External address bus bit 4 |
| پین 8 | ADDR5 — External address bus bit 5 |
| پین 9 | ADDR6 — External address bus bit 6 |
| پین 10 | ADDR7 — External address bus bit 7 |
| پین 11 | ADDR8 — External address bus bit 8 |
| پین 12 | ADDR9 — External address bus bit 9 |
| پین 13 | ADDR10 — External address bus bit 10 |
| پین 14 | ADDR11 — External address bus bit 11 |
| پین 15 | ADDR12 — External address bus bit 12 |
| پین 16 | ADDR13 — External address bus bit 13 |
| پین 17 | ADDR14 — External address bus bit 14 |
| پین 18 | ADDR15 — External address bus bit 15 |
| پین 19 | ADDR16 — External address bus bit 16 |
| پین 20 | ADDR17 — External address bus bit 17 |
| پین 21 | ADDR18 — External address bus bit 18 |
| پین 22 | ADDR19 — External address bus bit 19 |
| پین 23 | ADDR20 — External address bus bit 20 |
| پین 24 | ADDR21 — External address bus bit 21 |
| پین 25 | ADDR22 — External address bus bit 22 |
| پین 26 | ADDR23 — External address bus bit 23 |
| پین 27 | DATA0 — External data bus bit 0 |
| پین 28 | DATA1 — External data bus bit 1 |
| پین 29 | DATA2 — External data bus bit 2 |
| پین 30 | DATA3 — External data bus bit 3 |
| پین 31 | DATA4 — External data bus bit 4 |
| پین 32 | DATA5 — External data bus bit 5 |
| پین 33 | DATA6 — External data bus bit 6 |
| پین 34 | DATA7 — External data bus bit 7 |
| پین 35 | DATA8 — External data bus bit 8 |
| پین 36 | DATA9 — External data bus bit 9 |
| پین 37 | DATA10 — External data bus bit 10 |
| پین 38 | DATA11 — External data bus bit 11 |
| پین 39 | DATA12 — External data bus bit 12 |
| پین 40 | DATA13 — External data bus bit 13 |
| پین 41 | DATA14 — External data bus bit 14 |
| پین 42 | DATA15 — External data bus bit 15 |
| پین 43 | CS0 — Chip-select 0 (per datasheet) |
| پین 44 | CS1 — Chip-select 1 |
| پین 45 | CS2 — Chip-select 2 |
| پین 46 | CS3 — Chip-select 3 |
| پین 47 | CS4 — Chip-select 4 |
| پین 48 | CS5 — Chip-select 5 |
| پین 49 | CS6 — Chip-select 6 |
| پین 50 | CS7 — Chip-select 7 |
| پین 51 | CS8 — Chip-select 8 |
| پین 52 | CS9 — Chip-select 9 |
| پین 53 | CS10 — Chip-select 10 |
| پین 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| پین 55 | IRQ2 — Interrupt request 2 |
| پین 56 | IRQ3 — Interrupt request 3 |
| پین 57 | IRQ4 — Interrupt request 4 |
| پین 58 | IRQ5 — Interrupt request 5 |
| پین 59 | IRQ6 — Interrupt request 6 |
| پین 60 | IRQ7 — Interrupt request 7 |
| پین 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| پین 62 | TPUCH1 — TPU channel 1 |
| پین 63 | TPUCH2 — TPU channel 2 |
| پین 64 | TPUCH3 — TPU channel 3 |
| پین 65 | TPUCH4 — TPU channel 4 |
| پین 66 | TPUCH5 — TPU channel 5 |
| پین 67 | TPUCH6 — TPU channel 6 |
| پین 68 | TPUCH7 — TPU channel 7 |
| پین 69 | TPUCH8 — TPU channel 8 |
| پین 70 | TPUCH9 — TPU channel 9 |
| پین 71 | TPUCH10 — TPU channel 10 |
| پین 72 | TPUCH11 — TPU channel 11 |
| پین 73 | TPUCH12 — TPU channel 12 |
| پین 74 | TPUCH13 — TPU channel 13 |
| پین 75 | TPUCH14 — TPU channel 14 |
| پین 76 | TPUCH15 — TPU channel 15 |
| پین 77 | QSMTXD — QSM transmit data (per datasheet) |
| پین 78 | QSMRXD — QSM receive data |
| پین 79 | QSMCLK — QSM clock |
| پین 80 | QSPCS — QSM chip select |
| پین 81 | XTAL — Crystal oscillator input |
| پین 82 | EXTAL — External clock input |
| پین 83 | VSS — Ground |
| پین 84 | VDD — 5V supply |
| پین 85 | RSTOUT — Reset output (per datasheet) |
| پین 86 | RESET — Reset input |
| پین 87 | HALT — Halt control |
| پین 88 | BKPT — Breakpoint / background debug mode |
| پین 89 | DSO — Development serial output (per datasheet) |
| پین 90 | DSI — Development serial input |
| پین 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| پین 92 | PWM1 — Pulse-width modulation output 1 |
| پین 93 | PWM2 — Pulse-width modulation output 2 |
| پین 94 | PWM3 — Pulse-width modulation output 3 |
| پین 95 | PWM4 — Pulse-width modulation output 4 |
| پین 96 | PWM5 — Pulse-width modulation output 5 |
| پین 97 | PWM6 — Pulse-width modulation output 6 |
| پین 98 | PWM7 — Pulse-width modulation output 7 |
| پین 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| پین 100 | PWMA1 — Pulse-width modulation A1 |
| پین 101 | PWMA2 — Pulse-width modulation A2 |
| پین 102 | PWMA3 — Pulse-width modulation A3 |
| پین 103 | PWMA4 — Pulse-width modulation A4 |
| پین 104 | PWMA5 — Pulse-width modulation A5 |
| پین 105 | PWMA6 — Pulse-width modulation A6 |
| پین 106 | PWMA7 — Pulse-width modulation A7 |
| پین 107 | TPUSA — TPU sub-address (per datasheet) |
| پین 108 | TPUSB — TPU sub-bus |
| پین 109 | TPUCLK — TPU clock |
| پین 110 | TPUEN — TPU enable |
| پین 111 | AVDD — Analog 5V supply (per datasheet) |
| پین 112 | AVSS — Analog ground |
| پین 113 | VRL — ADC voltage reference low (per datasheet) |
| پین 114 | VRH — ADC voltage reference high |
| پین 115 | AN0 — Analog input 0 (per datasheet) |
| پین 116 | AN1 — Analog input 1 |
| پین 117 | AN2 — Analog input 2 |
| پین 118 | AN3 — Analog input 3 |
| پین 119 | AN4 — Analog input 4 |
| پین 120 | AN5 — Analog input 5 |
| پین 121 | AN6 — Analog input 6 |
| پین 122 | AN7 — Analog input 7 |
| پین 123 | TXD — SCI transmit (per datasheet) |
| پین 124 | RXD — SCI receive |
| پین 125 | SCK — SCI clock |
| پین 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| پین 127 | PCS1 — Peripheral chip select 1 |
| پین 128 | PCS2 — Peripheral chip select 2 |
| پین 129 | PCS3 — Peripheral chip select 3 |
| پین 130 | MISO — SPI MISO (per datasheet) |
| پین 131 | MOSI — SPI MOSI |
| پین 132 | SPICLK — SPI clock |
| پین 133 | SPICS — SPI chip select |
| پین 134 | WR — Write strobe (per datasheet) |
| پین 135 | RD — Read strobe |
| پین 136 | AS — Address strobe |
| پین 137 | DS — Data strobe |
| پین 138 | BG — Bus grant (per datasheet) |
| پین 139 | BR — Bus request |
| پین 140 | BB — Bus busy |
| پین 141 | FC0 — Function code 0 (per datasheet) |
| پین 142 | FC1 — Function code 1 |
| پین 143 | FC2 — Function code 2 |
| پین 144 | VSS — Ground |
کاربردهای معمول
MC68LK332GCAG16 مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MC68LK332GCAG16 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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 |
تفاوت‌های کلیدی
- CPU32 32-bit core at 16.78 MHz with integrated TPU and QSM (در مقابلMC68LK332ACAG16)
- Pin-compatible 20 MHz speed grade option (در مقابلMC68332ACAG20)
- Drop-in on the 144-LQFP M68332 family footprint (در مقابلMC9S12XEQ384CAG)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.