MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
MPN: MC68LK332GCAG16 ✗ Cuối đờiMC68LK332GCAG16 Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MC68LK332GCAG16 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC68LK332GCAG16 (cùng hình factor và footprint) — khác nhau ở Core Processor, RAM Size, Core Size, Package, Program Memory Type.
MC68LK332ACAG16
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68332GVAG16
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68332ACAG20
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68332ACAG16
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68332GCAG20
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC9S12XEQ384CAG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68LK332GCAG16 Tỷ lệ tối đa & tính chất điện
| Core | CPU32 (M68300 / ColdFire lineage) |
| Bề rộng đường dữ liệu | 32-bit |
| Tần số xung maksimum | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| Điện áp cung cấp | 5 V |
| Oscillator Type | Internal |
| Hộp / Vỏ | 144-LQFP (20 x 20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tray |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect Bus | IMB (Intermodule Bus) |
Cấu hình chân MC68LK332GCAG16
| Chân 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| Chân 2 | VSS — Ground |
| Chân 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| Chân 4 | ADDR1 — External address bus bit 1 |
| Chân 5 | ADDR2 — External address bus bit 2 |
| Chân 6 | ADDR3 — External address bus bit 3 |
| Chân 7 | ADDR4 — External address bus bit 4 |
| Chân 8 | ADDR5 — External address bus bit 5 |
| Chân 9 | ADDR6 — External address bus bit 6 |
| Chân 10 | ADDR7 — External address bus bit 7 |
| Chân 11 | ADDR8 — External address bus bit 8 |
| Chân 12 | ADDR9 — External address bus bit 9 |
| Chân 13 | ADDR10 — External address bus bit 10 |
| Chân 14 | ADDR11 — External address bus bit 11 |
| Chân 15 | ADDR12 — External address bus bit 12 |
| Chân 16 | ADDR13 — External address bus bit 13 |
| Chân 17 | ADDR14 — External address bus bit 14 |
| Chân 18 | ADDR15 — External address bus bit 15 |
| Chân 19 | ADDR16 — External address bus bit 16 |
| Chân 20 | ADDR17 — External address bus bit 17 |
| Chân 21 | ADDR18 — External address bus bit 18 |
| Chân 22 | ADDR19 — External address bus bit 19 |
| Chân 23 | ADDR20 — External address bus bit 20 |
| Chân 24 | ADDR21 — External address bus bit 21 |
| Chân 25 | ADDR22 — External address bus bit 22 |
| Chân 26 | ADDR23 — External address bus bit 23 |
| Chân 27 | DATA0 — External data bus bit 0 |
| Chân 28 | DATA1 — External data bus bit 1 |
| Chân 29 | DATA2 — External data bus bit 2 |
| Chân 30 | DATA3 — External data bus bit 3 |
| Chân 31 | DATA4 — External data bus bit 4 |
| Chân 32 | DATA5 — External data bus bit 5 |
| Chân 33 | DATA6 — External data bus bit 6 |
| Chân 34 | DATA7 — External data bus bit 7 |
| Chân 35 | DATA8 — External data bus bit 8 |
| Chân 36 | DATA9 — External data bus bit 9 |
| Chân 37 | DATA10 — External data bus bit 10 |
| Chân 38 | DATA11 — External data bus bit 11 |
| Chân 39 | DATA12 — External data bus bit 12 |
| Chân 40 | DATA13 — External data bus bit 13 |
| Chân 41 | DATA14 — External data bus bit 14 |
| Chân 42 | DATA15 — External data bus bit 15 |
| Chân 43 | CS0 — Chip-select 0 (per datasheet) |
| Chân 44 | CS1 — Chip-select 1 |
| Chân 45 | CS2 — Chip-select 2 |
| Chân 46 | CS3 — Chip-select 3 |
| Chân 47 | CS4 — Chip-select 4 |
| Chân 48 | CS5 — Chip-select 5 |
| Chân 49 | CS6 — Chip-select 6 |
| Chân 50 | CS7 — Chip-select 7 |
| Chân 51 | CS8 — Chip-select 8 |
| Chân 52 | CS9 — Chip-select 9 |
| Chân 53 | CS10 — Chip-select 10 |
| Chân 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| Chân 55 | IRQ2 — Interrupt request 2 |
| Chân 56 | IRQ3 — Interrupt request 3 |
| Chân 57 | IRQ4 — Interrupt request 4 |
| Chân 58 | IRQ5 — Interrupt request 5 |
| Chân 59 | IRQ6 — Interrupt request 6 |
| Chân 60 | IRQ7 — Interrupt request 7 |
| Chân 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| Chân 62 | TPUCH1 — TPU channel 1 |
| Chân 63 | TPUCH2 — TPU channel 2 |
| Chân 64 | TPUCH3 — TPU channel 3 |
| Chân 65 | TPUCH4 — TPU channel 4 |
| Chân 66 | TPUCH5 — TPU channel 5 |
| Chân 67 | TPUCH6 — TPU channel 6 |
| Chân 68 | TPUCH7 — TPU channel 7 |
| Chân 69 | TPUCH8 — TPU channel 8 |
| Chân 70 | TPUCH9 — TPU channel 9 |
| Chân 71 | TPUCH10 — TPU channel 10 |
| Chân 72 | TPUCH11 — TPU channel 11 |
| Chân 73 | TPUCH12 — TPU channel 12 |
| Chân 74 | TPUCH13 — TPU channel 13 |
| Chân 75 | TPUCH14 — TPU channel 14 |
| Chân 76 | TPUCH15 — TPU channel 15 |
| Chân 77 | QSMTXD — QSM transmit data (per datasheet) |
| Chân 78 | QSMRXD — QSM receive data |
| Chân 79 | QSMCLK — QSM clock |
| Chân 80 | QSPCS — QSM chip select |
| Chân 81 | XTAL — Crystal oscillator input |
| Chân 82 | EXTAL — External clock input |
| Chân 83 | VSS — Ground |
| Chân 84 | VDD — 5V supply |
| Chân 85 | RSTOUT — Reset output (per datasheet) |
| Chân 86 | RESET — Reset input |
| Chân 87 | HALT — Halt control |
| Chân 88 | BKPT — Breakpoint / background debug mode |
| Chân 89 | DSO — Development serial output (per datasheet) |
| Chân 90 | DSI — Development serial input |
| Chân 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| Chân 92 | PWM1 — Pulse-width modulation output 1 |
| Chân 93 | PWM2 — Pulse-width modulation output 2 |
| Chân 94 | PWM3 — Pulse-width modulation output 3 |
| Chân 95 | PWM4 — Pulse-width modulation output 4 |
| Chân 96 | PWM5 — Pulse-width modulation output 5 |
| Chân 97 | PWM6 — Pulse-width modulation output 6 |
| Chân 98 | PWM7 — Pulse-width modulation output 7 |
| Chân 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| Chân 100 | PWMA1 — Pulse-width modulation A1 |
| Chân 101 | PWMA2 — Pulse-width modulation A2 |
| Chân 102 | PWMA3 — Pulse-width modulation A3 |
| Chân 103 | PWMA4 — Pulse-width modulation A4 |
| Chân 104 | PWMA5 — Pulse-width modulation A5 |
| Chân 105 | PWMA6 — Pulse-width modulation A6 |
| Chân 106 | PWMA7 — Pulse-width modulation A7 |
| Chân 107 | TPUSA — TPU sub-address (per datasheet) |
| Chân 108 | TPUSB — TPU sub-bus |
| Chân 109 | TPUCLK — TPU clock |
| Chân 110 | TPUEN — TPU enable |
| Chân 111 | AVDD — Analog 5V supply (per datasheet) |
| Chân 112 | AVSS — Analog ground |
| Chân 113 | VRL — ADC voltage reference low (per datasheet) |
| Chân 114 | VRH — ADC voltage reference high |
| Chân 115 | AN0 — Analog input 0 (per datasheet) |
| Chân 116 | AN1 — Analog input 1 |
| Chân 117 | AN2 — Analog input 2 |
| Chân 118 | AN3 — Analog input 3 |
| Chân 119 | AN4 — Analog input 4 |
| Chân 120 | AN5 — Analog input 5 |
| Chân 121 | AN6 — Analog input 6 |
| Chân 122 | AN7 — Analog input 7 |
| Chân 123 | TXD — SCI transmit (per datasheet) |
| Chân 124 | RXD — SCI receive |
| Chân 125 | SCK — SCI clock |
| Chân 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| Chân 127 | PCS1 — Peripheral chip select 1 |
| Chân 128 | PCS2 — Peripheral chip select 2 |
| Chân 129 | PCS3 — Peripheral chip select 3 |
| Chân 130 | MISO — SPI MISO (per datasheet) |
| Chân 131 | MOSI — SPI MOSI |
| Chân 132 | SPICLK — SPI clock |
| Chân 133 | SPICS — SPI chip select |
| Chân 134 | WR — Write strobe (per datasheet) |
| Chân 135 | RD — Read strobe |
| Chân 136 | AS — Address strobe |
| Chân 137 | DS — Data strobe |
| Chân 138 | BG — Bus grant (per datasheet) |
| Chân 139 | BR — Bus request |
| Chân 140 | BB — Bus busy |
| Chân 141 | FC0 — Function code 0 (per datasheet) |
| Chân 142 | FC1 — Function code 1 |
| Chân 143 | FC2 — Function code 2 |
| Chân 144 | VSS — Ground |
Ứng dụng tiêu biểu
MC68LK332GCAG16 phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68LK332GCAG16 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 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)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.