MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
Teilenummer: MC68LK332GCAG16 ✗ Abgekündigt| Menge | Stückpreis | Gesamt |
|---|---|---|
| 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 Übersicht
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.
Drop-in-Alternativen für MC68LK332GCAG16 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MC68LK332GCAG16 (gleiche Bauform und Footprint) – abweichend in Core Processor, RAM Size, Core Size, Package, Program Memory Type.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MC68LK332ACAG16
✅ Drop-In✓ Auf Lager
$19.75 / Stück
Datenblatt ansehen →MC68332GVAG16
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC68332ACAG20
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC68332ACAG16
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC68332GCAG20
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MC9S12XEQ384CAG
✅ Drop-In✓ Auf Lager
Preis auf Anfrage
Datenblatt ansehen →MC68LK332GCAG16 Grenzwerte & elektrische Eigenschaften
| Core | CPU32 (M68300 / ColdFire lineage) |
| Datenbusbreite | 32-bit |
| Maximale Taktfrequenz | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| Versorgungsspannung | 5 V |
| Oscillator Type | Internal |
| Gehäuse / Bauform | 144-LQFP (20 x 20 mm) |
| Montageart | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
MC68LK332GCAG16 Pin-Konfiguration
| Pin 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| Pin 2 | VSS — Ground |
| Pin 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| Pin 4 | ADDR1 — External address bus bit 1 |
| Pin 5 | ADDR2 — External address bus bit 2 |
| Pin 6 | ADDR3 — External address bus bit 3 |
| Pin 7 | ADDR4 — External address bus bit 4 |
| Pin 8 | ADDR5 — External address bus bit 5 |
| Pin 9 | ADDR6 — External address bus bit 6 |
| Pin 10 | ADDR7 — External address bus bit 7 |
| Pin 11 | ADDR8 — External address bus bit 8 |
| Pin 12 | ADDR9 — External address bus bit 9 |
| Pin 13 | ADDR10 — External address bus bit 10 |
| Pin 14 | ADDR11 — External address bus bit 11 |
| Pin 15 | ADDR12 — External address bus bit 12 |
| Pin 16 | ADDR13 — External address bus bit 13 |
| Pin 17 | ADDR14 — External address bus bit 14 |
| Pin 18 | ADDR15 — External address bus bit 15 |
| Pin 19 | ADDR16 — External address bus bit 16 |
| Pin 20 | ADDR17 — External address bus bit 17 |
| Pin 21 | ADDR18 — External address bus bit 18 |
| Pin 22 | ADDR19 — External address bus bit 19 |
| Pin 23 | ADDR20 — External address bus bit 20 |
| Pin 24 | ADDR21 — External address bus bit 21 |
| Pin 25 | ADDR22 — External address bus bit 22 |
| Pin 26 | ADDR23 — External address bus bit 23 |
| Pin 27 | DATA0 — External data bus bit 0 |
| Pin 28 | DATA1 — External data bus bit 1 |
| Pin 29 | DATA2 — External data bus bit 2 |
| Pin 30 | DATA3 — External data bus bit 3 |
| Pin 31 | DATA4 — External data bus bit 4 |
| Pin 32 | DATA5 — External data bus bit 5 |
| Pin 33 | DATA6 — External data bus bit 6 |
| Pin 34 | DATA7 — External data bus bit 7 |
| Pin 35 | DATA8 — External data bus bit 8 |
| Pin 36 | DATA9 — External data bus bit 9 |
| Pin 37 | DATA10 — External data bus bit 10 |
| Pin 38 | DATA11 — External data bus bit 11 |
| Pin 39 | DATA12 — External data bus bit 12 |
| Pin 40 | DATA13 — External data bus bit 13 |
| Pin 41 | DATA14 — External data bus bit 14 |
| Pin 42 | DATA15 — External data bus bit 15 |
| Pin 43 | CS0 — Chip-select 0 (per datasheet) |
| Pin 44 | CS1 — Chip-select 1 |
| Pin 45 | CS2 — Chip-select 2 |
| Pin 46 | CS3 — Chip-select 3 |
| Pin 47 | CS4 — Chip-select 4 |
| Pin 48 | CS5 — Chip-select 5 |
| Pin 49 | CS6 — Chip-select 6 |
| Pin 50 | CS7 — Chip-select 7 |
| Pin 51 | CS8 — Chip-select 8 |
| Pin 52 | CS9 — Chip-select 9 |
| Pin 53 | CS10 — Chip-select 10 |
| Pin 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| Pin 55 | IRQ2 — Interrupt request 2 |
| Pin 56 | IRQ3 — Interrupt request 3 |
| Pin 57 | IRQ4 — Interrupt request 4 |
| Pin 58 | IRQ5 — Interrupt request 5 |
| Pin 59 | IRQ6 — Interrupt request 6 |
| Pin 60 | IRQ7 — Interrupt request 7 |
| Pin 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| Pin 62 | TPUCH1 — TPU channel 1 |
| Pin 63 | TPUCH2 — TPU channel 2 |
| Pin 64 | TPUCH3 — TPU channel 3 |
| Pin 65 | TPUCH4 — TPU channel 4 |
| Pin 66 | TPUCH5 — TPU channel 5 |
| Pin 67 | TPUCH6 — TPU channel 6 |
| Pin 68 | TPUCH7 — TPU channel 7 |
| Pin 69 | TPUCH8 — TPU channel 8 |
| Pin 70 | TPUCH9 — TPU channel 9 |
| Pin 71 | TPUCH10 — TPU channel 10 |
| Pin 72 | TPUCH11 — TPU channel 11 |
| Pin 73 | TPUCH12 — TPU channel 12 |
| Pin 74 | TPUCH13 — TPU channel 13 |
| Pin 75 | TPUCH14 — TPU channel 14 |
| Pin 76 | TPUCH15 — TPU channel 15 |
| Pin 77 | QSMTXD — QSM transmit data (per datasheet) |
| Pin 78 | QSMRXD — QSM receive data |
| Pin 79 | QSMCLK — QSM clock |
| Pin 80 | QSPCS — QSM chip select |
| Pin 81 | XTAL — Crystal oscillator input |
| Pin 82 | EXTAL — External clock input |
| Pin 83 | VSS — Ground |
| Pin 84 | VDD — 5V supply |
| Pin 85 | RSTOUT — Reset output (per datasheet) |
| Pin 86 | RESET — Reset input |
| Pin 87 | HALT — Halt control |
| Pin 88 | BKPT — Breakpoint / background debug mode |
| Pin 89 | DSO — Development serial output (per datasheet) |
| Pin 90 | DSI — Development serial input |
| Pin 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| Pin 92 | PWM1 — Pulse-width modulation output 1 |
| Pin 93 | PWM2 — Pulse-width modulation output 2 |
| Pin 94 | PWM3 — Pulse-width modulation output 3 |
| Pin 95 | PWM4 — Pulse-width modulation output 4 |
| Pin 96 | PWM5 — Pulse-width modulation output 5 |
| Pin 97 | PWM6 — Pulse-width modulation output 6 |
| Pin 98 | PWM7 — Pulse-width modulation output 7 |
| Pin 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| Pin 100 | PWMA1 — Pulse-width modulation A1 |
| Pin 101 | PWMA2 — Pulse-width modulation A2 |
| Pin 102 | PWMA3 — Pulse-width modulation A3 |
| Pin 103 | PWMA4 — Pulse-width modulation A4 |
| Pin 104 | PWMA5 — Pulse-width modulation A5 |
| Pin 105 | PWMA6 — Pulse-width modulation A6 |
| Pin 106 | PWMA7 — Pulse-width modulation A7 |
| Pin 107 | TPUSA — TPU sub-address (per datasheet) |
| Pin 108 | TPUSB — TPU sub-bus |
| Pin 109 | TPUCLK — TPU clock |
| Pin 110 | TPUEN — TPU enable |
| Pin 111 | AVDD — Analog 5V supply (per datasheet) |
| Pin 112 | AVSS — Analog ground |
| Pin 113 | VRL — ADC voltage reference low (per datasheet) |
| Pin 114 | VRH — ADC voltage reference high |
| Pin 115 | AN0 — Analog input 0 (per datasheet) |
| Pin 116 | AN1 — Analog input 1 |
| Pin 117 | AN2 — Analog input 2 |
| Pin 118 | AN3 — Analog input 3 |
| Pin 119 | AN4 — Analog input 4 |
| Pin 120 | AN5 — Analog input 5 |
| Pin 121 | AN6 — Analog input 6 |
| Pin 122 | AN7 — Analog input 7 |
| Pin 123 | TXD — SCI transmit (per datasheet) |
| Pin 124 | RXD — SCI receive |
| Pin 125 | SCK — SCI clock |
| Pin 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| Pin 127 | PCS1 — Peripheral chip select 1 |
| Pin 128 | PCS2 — Peripheral chip select 2 |
| Pin 129 | PCS3 — Peripheral chip select 3 |
| Pin 130 | MISO — SPI MISO (per datasheet) |
| Pin 131 | MOSI — SPI MOSI |
| Pin 132 | SPICLK — SPI clock |
| Pin 133 | SPICS — SPI chip select |
| Pin 134 | WR — Write strobe (per datasheet) |
| Pin 135 | RD — Read strobe |
| Pin 136 | AS — Address strobe |
| Pin 137 | DS — Data strobe |
| Pin 138 | BG — Bus grant (per datasheet) |
| Pin 139 | BR — Bus request |
| Pin 140 | BB — Bus busy |
| Pin 141 | FC0 — Function code 0 (per datasheet) |
| Pin 142 | FC1 — Function code 1 |
| Pin 143 | FC2 — Function code 2 |
| Pin 144 | VSS — Ground |
Typische Anwendungen
MC68LK332GCAG16 ist geeignet für 6 Anwendungs: 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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MC68LK332GCAG16 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 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 |
Wichtigste Unterscheidungsmerkmale
- 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)
Designhinweise
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.
Compliance-Informationen
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.