MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
N.º da peça: MC68LK332GCAG16 ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.95 | $1.395,00 |
| 500 | $11.8 | $5.900,00 |
| 1.000 | $10.4 | $10.400,00 |
MC68LK332GCAG16 Visão geral
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.
Alternativas drop-in para MC68LK332GCAG16 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MC68LK332GCAG16 (mesmo formato e footprint) — diferindo em Core Processor, RAM Size, Core Size, Package, Program Memory Type.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
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✅ Drop-In📋 Alternativa de referência (fora do catálogo)
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✅ Drop-In📋 Alternativa de referência (fora do catálogo)
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✅ Drop-In📋 Alternativa de referência (fora do catálogo)
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✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →MC68LK332GCAG16 Classificações máximas e características elétricas
| Core | CPU32 (M68300 / ColdFire lineage) |
| Largura do barramento de dados | 32-bit |
| Frequência máxima de clock | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| Tensão de alimentação | 5 V |
| Oscillator Type | Internal |
| Encapsulamento / Caixa | 144-LQFP (20 x 20 mm) |
| Tipo de montagem | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
Configuração de pinos do MC68LK332GCAG16
| Pino 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| Pino 2 | VSS — Ground |
| Pino 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| Pino 4 | ADDR1 — External address bus bit 1 |
| Pino 5 | ADDR2 — External address bus bit 2 |
| Pino 6 | ADDR3 — External address bus bit 3 |
| Pino 7 | ADDR4 — External address bus bit 4 |
| Pino 8 | ADDR5 — External address bus bit 5 |
| Pino 9 | ADDR6 — External address bus bit 6 |
| Pino 10 | ADDR7 — External address bus bit 7 |
| Pino 11 | ADDR8 — External address bus bit 8 |
| Pino 12 | ADDR9 — External address bus bit 9 |
| Pino 13 | ADDR10 — External address bus bit 10 |
| Pino 14 | ADDR11 — External address bus bit 11 |
| Pino 15 | ADDR12 — External address bus bit 12 |
| Pino 16 | ADDR13 — External address bus bit 13 |
| Pino 17 | ADDR14 — External address bus bit 14 |
| Pino 18 | ADDR15 — External address bus bit 15 |
| Pino 19 | ADDR16 — External address bus bit 16 |
| Pino 20 | ADDR17 — External address bus bit 17 |
| Pino 21 | ADDR18 — External address bus bit 18 |
| Pino 22 | ADDR19 — External address bus bit 19 |
| Pino 23 | ADDR20 — External address bus bit 20 |
| Pino 24 | ADDR21 — External address bus bit 21 |
| Pino 25 | ADDR22 — External address bus bit 22 |
| Pino 26 | ADDR23 — External address bus bit 23 |
| Pino 27 | DATA0 — External data bus bit 0 |
| Pino 28 | DATA1 — External data bus bit 1 |
| Pino 29 | DATA2 — External data bus bit 2 |
| Pino 30 | DATA3 — External data bus bit 3 |
| Pino 31 | DATA4 — External data bus bit 4 |
| Pino 32 | DATA5 — External data bus bit 5 |
| Pino 33 | DATA6 — External data bus bit 6 |
| Pino 34 | DATA7 — External data bus bit 7 |
| Pino 35 | DATA8 — External data bus bit 8 |
| Pino 36 | DATA9 — External data bus bit 9 |
| Pino 37 | DATA10 — External data bus bit 10 |
| Pino 38 | DATA11 — External data bus bit 11 |
| Pino 39 | DATA12 — External data bus bit 12 |
| Pino 40 | DATA13 — External data bus bit 13 |
| Pino 41 | DATA14 — External data bus bit 14 |
| Pino 42 | DATA15 — External data bus bit 15 |
| Pino 43 | CS0 — Chip-select 0 (per datasheet) |
| Pino 44 | CS1 — Chip-select 1 |
| Pino 45 | CS2 — Chip-select 2 |
| Pino 46 | CS3 — Chip-select 3 |
| Pino 47 | CS4 — Chip-select 4 |
| Pino 48 | CS5 — Chip-select 5 |
| Pino 49 | CS6 — Chip-select 6 |
| Pino 50 | CS7 — Chip-select 7 |
| Pino 51 | CS8 — Chip-select 8 |
| Pino 52 | CS9 — Chip-select 9 |
| Pino 53 | CS10 — Chip-select 10 |
| Pino 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| Pino 55 | IRQ2 — Interrupt request 2 |
| Pino 56 | IRQ3 — Interrupt request 3 |
| Pino 57 | IRQ4 — Interrupt request 4 |
| Pino 58 | IRQ5 — Interrupt request 5 |
| Pino 59 | IRQ6 — Interrupt request 6 |
| Pino 60 | IRQ7 — Interrupt request 7 |
| Pino 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| Pino 62 | TPUCH1 — TPU channel 1 |
| Pino 63 | TPUCH2 — TPU channel 2 |
| Pino 64 | TPUCH3 — TPU channel 3 |
| Pino 65 | TPUCH4 — TPU channel 4 |
| Pino 66 | TPUCH5 — TPU channel 5 |
| Pino 67 | TPUCH6 — TPU channel 6 |
| Pino 68 | TPUCH7 — TPU channel 7 |
| Pino 69 | TPUCH8 — TPU channel 8 |
| Pino 70 | TPUCH9 — TPU channel 9 |
| Pino 71 | TPUCH10 — TPU channel 10 |
| Pino 72 | TPUCH11 — TPU channel 11 |
| Pino 73 | TPUCH12 — TPU channel 12 |
| Pino 74 | TPUCH13 — TPU channel 13 |
| Pino 75 | TPUCH14 — TPU channel 14 |
| Pino 76 | TPUCH15 — TPU channel 15 |
| Pino 77 | QSMTXD — QSM transmit data (per datasheet) |
| Pino 78 | QSMRXD — QSM receive data |
| Pino 79 | QSMCLK — QSM clock |
| Pino 80 | QSPCS — QSM chip select |
| Pino 81 | XTAL — Crystal oscillator input |
| Pino 82 | EXTAL — External clock input |
| Pino 83 | VSS — Ground |
| Pino 84 | VDD — 5V supply |
| Pino 85 | RSTOUT — Reset output (per datasheet) |
| Pino 86 | RESET — Reset input |
| Pino 87 | HALT — Halt control |
| Pino 88 | BKPT — Breakpoint / background debug mode |
| Pino 89 | DSO — Development serial output (per datasheet) |
| Pino 90 | DSI — Development serial input |
| Pino 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| Pino 92 | PWM1 — Pulse-width modulation output 1 |
| Pino 93 | PWM2 — Pulse-width modulation output 2 |
| Pino 94 | PWM3 — Pulse-width modulation output 3 |
| Pino 95 | PWM4 — Pulse-width modulation output 4 |
| Pino 96 | PWM5 — Pulse-width modulation output 5 |
| Pino 97 | PWM6 — Pulse-width modulation output 6 |
| Pino 98 | PWM7 — Pulse-width modulation output 7 |
| Pino 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| Pino 100 | PWMA1 — Pulse-width modulation A1 |
| Pino 101 | PWMA2 — Pulse-width modulation A2 |
| Pino 102 | PWMA3 — Pulse-width modulation A3 |
| Pino 103 | PWMA4 — Pulse-width modulation A4 |
| Pino 104 | PWMA5 — Pulse-width modulation A5 |
| Pino 105 | PWMA6 — Pulse-width modulation A6 |
| Pino 106 | PWMA7 — Pulse-width modulation A7 |
| Pino 107 | TPUSA — TPU sub-address (per datasheet) |
| Pino 108 | TPUSB — TPU sub-bus |
| Pino 109 | TPUCLK — TPU clock |
| Pino 110 | TPUEN — TPU enable |
| Pino 111 | AVDD — Analog 5V supply (per datasheet) |
| Pino 112 | AVSS — Analog ground |
| Pino 113 | VRL — ADC voltage reference low (per datasheet) |
| Pino 114 | VRH — ADC voltage reference high |
| Pino 115 | AN0 — Analog input 0 (per datasheet) |
| Pino 116 | AN1 — Analog input 1 |
| Pino 117 | AN2 — Analog input 2 |
| Pino 118 | AN3 — Analog input 3 |
| Pino 119 | AN4 — Analog input 4 |
| Pino 120 | AN5 — Analog input 5 |
| Pino 121 | AN6 — Analog input 6 |
| Pino 122 | AN7 — Analog input 7 |
| Pino 123 | TXD — SCI transmit (per datasheet) |
| Pino 124 | RXD — SCI receive |
| Pino 125 | SCK — SCI clock |
| Pino 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| Pino 127 | PCS1 — Peripheral chip select 1 |
| Pino 128 | PCS2 — Peripheral chip select 2 |
| Pino 129 | PCS3 — Peripheral chip select 3 |
| Pino 130 | MISO — SPI MISO (per datasheet) |
| Pino 131 | MOSI — SPI MOSI |
| Pino 132 | SPICLK — SPI clock |
| Pino 133 | SPICS — SPI chip select |
| Pino 134 | WR — Write strobe (per datasheet) |
| Pino 135 | RD — Read strobe |
| Pino 136 | AS — Address strobe |
| Pino 137 | DS — Data strobe |
| Pino 138 | BG — Bus grant (per datasheet) |
| Pino 139 | BR — Bus request |
| Pino 140 | BB — Bus busy |
| Pino 141 | FC0 — Function code 0 (per datasheet) |
| Pino 142 | FC1 — Function code 1 |
| Pino 143 | FC2 — Function code 2 |
| Pino 144 | VSS — Ground |
Aplicações típicas
MC68LK332GCAG16 é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MC68LK332GCAG16 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- CPU32 32-bit core at 16.78 MHz with integrated TPU and QSM (vs MC68LK332ACAG16)
- Pin-compatible 20 MHz speed grade option (vs MC68332ACAG20)
- Drop-in on the 144-LQFP M68332 family footprint (vs MC9S12XEQ384CAG)
Notas de projeto
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.
Informações de conformidade
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.