MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
MPN: MC68LK332GCAG16 ✗ Akhir HidupMC68LK332GCAG16 Ringkasan
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.
Alternatif penggantian untuk MC68LK332GCAG16 — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian MC68LK332GCAG16 (sama faktor bentuk dan footprint) — berbeda di dalam Core Processor, RAM Size, Core Size, Package, Program Memory Type.
MC68LK332ACAG16
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC68332GVAG16
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68332ACAG20
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68332ACAG16
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC68332GCAG20
✅ Drop-In📋 Alternatif referensi (tidak dalam katalog)
MC9S12XEQ384CAG
✅ Drop-InKontak untuk harga
Lihat Datasheet →MC68LK332GCAG16 Rating Maksimal & Karakteristik Listrik
| Core | CPU32 (M68300 / ColdFire lineage) |
| Lebar Bus Data | 32-bit |
| Frekuensi Bawah Maximum | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| Tegangan Pemuat | 5 V |
| Oscillator Type | Internal |
| Paket / Case | 144-LQFP (20 x 20 mm) |
| Tipe Mounting | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
Konfigurasi Pin MC68LK332GCAG16
| Pin produk 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| Pin produk 2 | VSS — Ground |
| Pin produk 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| Pin produk 4 | ADDR1 — External address bus bit 1 |
| Pin produk 5 | ADDR2 — External address bus bit 2 |
| Pin produk 6 | ADDR3 — External address bus bit 3 |
| Pin produk 7 | ADDR4 — External address bus bit 4 |
| Pin produk 8 | ADDR5 — External address bus bit 5 |
| Pin produk 9 | ADDR6 — External address bus bit 6 |
| Pin produk 10 | ADDR7 — External address bus bit 7 |
| Pin produk 11 | ADDR8 — External address bus bit 8 |
| Pin produk 12 | ADDR9 — External address bus bit 9 |
| Pin produk 13 | ADDR10 — External address bus bit 10 |
| Pin produk 14 | ADDR11 — External address bus bit 11 |
| Pin produk 15 | ADDR12 — External address bus bit 12 |
| Pin produk 16 | ADDR13 — External address bus bit 13 |
| Pin produk 17 | ADDR14 — External address bus bit 14 |
| Pin produk 18 | ADDR15 — External address bus bit 15 |
| Pin produk 19 | ADDR16 — External address bus bit 16 |
| Pin produk 20 | ADDR17 — External address bus bit 17 |
| Pin produk 21 | ADDR18 — External address bus bit 18 |
| Pin produk 22 | ADDR19 — External address bus bit 19 |
| Pin produk 23 | ADDR20 — External address bus bit 20 |
| Pin produk 24 | ADDR21 — External address bus bit 21 |
| Pin produk 25 | ADDR22 — External address bus bit 22 |
| Pin produk 26 | ADDR23 — External address bus bit 23 |
| Pin produk 27 | DATA0 — External data bus bit 0 |
| Pin produk 28 | DATA1 — External data bus bit 1 |
| Pin produk 29 | DATA2 — External data bus bit 2 |
| Pin produk 30 | DATA3 — External data bus bit 3 |
| Pin produk 31 | DATA4 — External data bus bit 4 |
| Pin produk 32 | DATA5 — External data bus bit 5 |
| Pin produk 33 | DATA6 — External data bus bit 6 |
| Pin produk 34 | DATA7 — External data bus bit 7 |
| Pin produk 35 | DATA8 — External data bus bit 8 |
| Pin produk 36 | DATA9 — External data bus bit 9 |
| Pin produk 37 | DATA10 — External data bus bit 10 |
| Pin produk 38 | DATA11 — External data bus bit 11 |
| Pin produk 39 | DATA12 — External data bus bit 12 |
| Pin produk 40 | DATA13 — External data bus bit 13 |
| Pin produk 41 | DATA14 — External data bus bit 14 |
| Pin produk 42 | DATA15 — External data bus bit 15 |
| Pin produk 43 | CS0 — Chip-select 0 (per datasheet) |
| Pin produk 44 | CS1 — Chip-select 1 |
| Pin produk 45 | CS2 — Chip-select 2 |
| Pin produk 46 | CS3 — Chip-select 3 |
| Pin produk 47 | CS4 — Chip-select 4 |
| Pin produk 48 | CS5 — Chip-select 5 |
| Pin produk 49 | CS6 — Chip-select 6 |
| Pin produk 50 | CS7 — Chip-select 7 |
| Pin produk 51 | CS8 — Chip-select 8 |
| Pin produk 52 | CS9 — Chip-select 9 |
| Pin produk 53 | CS10 — Chip-select 10 |
| Pin produk 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| Pin produk 55 | IRQ2 — Interrupt request 2 |
| Pin produk 56 | IRQ3 — Interrupt request 3 |
| Pin produk 57 | IRQ4 — Interrupt request 4 |
| Pin produk 58 | IRQ5 — Interrupt request 5 |
| Pin produk 59 | IRQ6 — Interrupt request 6 |
| Pin produk 60 | IRQ7 — Interrupt request 7 |
| Pin produk 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| Pin produk 62 | TPUCH1 — TPU channel 1 |
| Pin produk 63 | TPUCH2 — TPU channel 2 |
| Pin produk 64 | TPUCH3 — TPU channel 3 |
| Pin produk 65 | TPUCH4 — TPU channel 4 |
| Pin produk 66 | TPUCH5 — TPU channel 5 |
| Pin produk 67 | TPUCH6 — TPU channel 6 |
| Pin produk 68 | TPUCH7 — TPU channel 7 |
| Pin produk 69 | TPUCH8 — TPU channel 8 |
| Pin produk 70 | TPUCH9 — TPU channel 9 |
| Pin produk 71 | TPUCH10 — TPU channel 10 |
| Pin produk 72 | TPUCH11 — TPU channel 11 |
| Pin produk 73 | TPUCH12 — TPU channel 12 |
| Pin produk 74 | TPUCH13 — TPU channel 13 |
| Pin produk 75 | TPUCH14 — TPU channel 14 |
| Pin produk 76 | TPUCH15 — TPU channel 15 |
| Pin produk 77 | QSMTXD — QSM transmit data (per datasheet) |
| Pin produk 78 | QSMRXD — QSM receive data |
| Pin produk 79 | QSMCLK — QSM clock |
| Pin produk 80 | QSPCS — QSM chip select |
| Pin produk 81 | XTAL — Crystal oscillator input |
| Pin produk 82 | EXTAL — External clock input |
| Pin produk 83 | VSS — Ground |
| Pin produk 84 | VDD — 5V supply |
| Pin produk 85 | RSTOUT — Reset output (per datasheet) |
| Pin produk 86 | RESET — Reset input |
| Pin produk 87 | HALT — Halt control |
| Pin produk 88 | BKPT — Breakpoint / background debug mode |
| Pin produk 89 | DSO — Development serial output (per datasheet) |
| Pin produk 90 | DSI — Development serial input |
| Pin produk 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| Pin produk 92 | PWM1 — Pulse-width modulation output 1 |
| Pin produk 93 | PWM2 — Pulse-width modulation output 2 |
| Pin produk 94 | PWM3 — Pulse-width modulation output 3 |
| Pin produk 95 | PWM4 — Pulse-width modulation output 4 |
| Pin produk 96 | PWM5 — Pulse-width modulation output 5 |
| Pin produk 97 | PWM6 — Pulse-width modulation output 6 |
| Pin produk 98 | PWM7 — Pulse-width modulation output 7 |
| Pin produk 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| Pin produk 100 | PWMA1 — Pulse-width modulation A1 |
| Pin produk 101 | PWMA2 — Pulse-width modulation A2 |
| Pin produk 102 | PWMA3 — Pulse-width modulation A3 |
| Pin produk 103 | PWMA4 — Pulse-width modulation A4 |
| Pin produk 104 | PWMA5 — Pulse-width modulation A5 |
| Pin produk 105 | PWMA6 — Pulse-width modulation A6 |
| Pin produk 106 | PWMA7 — Pulse-width modulation A7 |
| Pin produk 107 | TPUSA — TPU sub-address (per datasheet) |
| Pin produk 108 | TPUSB — TPU sub-bus |
| Pin produk 109 | TPUCLK — TPU clock |
| Pin produk 110 | TPUEN — TPU enable |
| Pin produk 111 | AVDD — Analog 5V supply (per datasheet) |
| Pin produk 112 | AVSS — Analog ground |
| Pin produk 113 | VRL — ADC voltage reference low (per datasheet) |
| Pin produk 114 | VRH — ADC voltage reference high |
| Pin produk 115 | AN0 — Analog input 0 (per datasheet) |
| Pin produk 116 | AN1 — Analog input 1 |
| Pin produk 117 | AN2 — Analog input 2 |
| Pin produk 118 | AN3 — Analog input 3 |
| Pin produk 119 | AN4 — Analog input 4 |
| Pin produk 120 | AN5 — Analog input 5 |
| Pin produk 121 | AN6 — Analog input 6 |
| Pin produk 122 | AN7 — Analog input 7 |
| Pin produk 123 | TXD — SCI transmit (per datasheet) |
| Pin produk 124 | RXD — SCI receive |
| Pin produk 125 | SCK — SCI clock |
| Pin produk 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| Pin produk 127 | PCS1 — Peripheral chip select 1 |
| Pin produk 128 | PCS2 — Peripheral chip select 2 |
| Pin produk 129 | PCS3 — Peripheral chip select 3 |
| Pin produk 130 | MISO — SPI MISO (per datasheet) |
| Pin produk 131 | MOSI — SPI MOSI |
| Pin produk 132 | SPICLK — SPI clock |
| Pin produk 133 | SPICS — SPI chip select |
| Pin produk 134 | WR — Write strobe (per datasheet) |
| Pin produk 135 | RD — Read strobe |
| Pin produk 136 | AS — Address strobe |
| Pin produk 137 | DS — Data strobe |
| Pin produk 138 | BG — Bus grant (per datasheet) |
| Pin produk 139 | BR — Bus request |
| Pin produk 140 | BB — Bus busy |
| Pin produk 141 | FC0 — Function code 0 (per datasheet) |
| Pin produk 142 | FC1 — Function code 1 |
| Pin produk 143 | FC2 — Function code 2 |
| Pin produk 144 | VSS — Ground |
Aplikasi Umum
MC68LK332GCAG16 cocok untuk 6 aplikasis: 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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
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.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk MC68LK332GCAG16 — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | 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 |
Diferensiator Kunci
- CPU32 32-bit core at 16.78 MHz with integrated TPU and QSM (vsMC68LK332ACAG16)
- Pin-compatible 20 MHz speed grade option (vsMC68332ACAG20)
- Drop-in on the 144-LQFP M68332 family footprint (vsMC9S12XEQ384CAG)
Catatan Desain
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.
Informasi Konformitas
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.