MC68LK332GCAG16 - 32-Bit ColdFire MCU, ROMless, 144-LQFP | NXP
料号： MC68LK332GCAG16 ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 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 概述
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.
直接替换替代料： MC68LK332GCAG16 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC68LK332GCAG16 （相同外形与封装尺寸） ——差异在于 Core Processor, RAM Size, Core Size, Package, Program Memory Type.
快速对比工具——选择替代料号进行并排对比：
MC68LK332ACAG16
✅ 直接替换✓ 有现货
$19.75 / 个
查看数据手册 →MC68332GVAG16
✅ 直接替换📋 参考替代料（不在目录中）
MC68332ACAG20
✅ 直接替换📋 参考替代料（不在目录中）
MC68332ACAG16
✅ 直接替换📋 参考替代料（不在目录中）
MC68332GCAG20
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12XEQ384CAG
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MC68LK332GCAG16 最大额定值与电气特性
| Core | CPU32 (M68300 / ColdFire lineage) |
| 数据总线宽度 | 32-bit |
| 最大时钟频率 | 16.78 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O Lines | 15 |
| 电源电压 | 5 V |
| Oscillator Type | Internal |
| 封装 / 外壳 | 144-LQFP (20 x 20 mm) |
| 安装类型 | 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 引脚配置
| 引脚 1 | VDD — 5V supply (per NXP MC68332 family datasheet) |
| 引脚 2 | VSS — Ground |
| 引脚 3 | ADDR0 — External address bus bit 0 (per datasheet) |
| 引脚 4 | ADDR1 — External address bus bit 1 |
| 引脚 5 | ADDR2 — External address bus bit 2 |
| 引脚 6 | ADDR3 — External address bus bit 3 |
| 引脚 7 | ADDR4 — External address bus bit 4 |
| 引脚 8 | ADDR5 — External address bus bit 5 |
| 引脚 9 | ADDR6 — External address bus bit 6 |
| 引脚 10 | ADDR7 — External address bus bit 7 |
| 引脚 11 | ADDR8 — External address bus bit 8 |
| 引脚 12 | ADDR9 — External address bus bit 9 |
| 引脚 13 | ADDR10 — External address bus bit 10 |
| 引脚 14 | ADDR11 — External address bus bit 11 |
| 引脚 15 | ADDR12 — External address bus bit 12 |
| 引脚 16 | ADDR13 — External address bus bit 13 |
| 引脚 17 | ADDR14 — External address bus bit 14 |
| 引脚 18 | ADDR15 — External address bus bit 15 |
| 引脚 19 | ADDR16 — External address bus bit 16 |
| 引脚 20 | ADDR17 — External address bus bit 17 |
| 引脚 21 | ADDR18 — External address bus bit 18 |
| 引脚 22 | ADDR19 — External address bus bit 19 |
| 引脚 23 | ADDR20 — External address bus bit 20 |
| 引脚 24 | ADDR21 — External address bus bit 21 |
| 引脚 25 | ADDR22 — External address bus bit 22 |
| 引脚 26 | ADDR23 — External address bus bit 23 |
| 引脚 27 | DATA0 — External data bus bit 0 |
| 引脚 28 | DATA1 — External data bus bit 1 |
| 引脚 29 | DATA2 — External data bus bit 2 |
| 引脚 30 | DATA3 — External data bus bit 3 |
| 引脚 31 | DATA4 — External data bus bit 4 |
| 引脚 32 | DATA5 — External data bus bit 5 |
| 引脚 33 | DATA6 — External data bus bit 6 |
| 引脚 34 | DATA7 — External data bus bit 7 |
| 引脚 35 | DATA8 — External data bus bit 8 |
| 引脚 36 | DATA9 — External data bus bit 9 |
| 引脚 37 | DATA10 — External data bus bit 10 |
| 引脚 38 | DATA11 — External data bus bit 11 |
| 引脚 39 | DATA12 — External data bus bit 12 |
| 引脚 40 | DATA13 — External data bus bit 13 |
| 引脚 41 | DATA14 — External data bus bit 14 |
| 引脚 42 | DATA15 — External data bus bit 15 |
| 引脚 43 | CS0 — Chip-select 0 (per datasheet) |
| 引脚 44 | CS1 — Chip-select 1 |
| 引脚 45 | CS2 — Chip-select 2 |
| 引脚 46 | CS3 — Chip-select 3 |
| 引脚 47 | CS4 — Chip-select 4 |
| 引脚 48 | CS5 — Chip-select 5 |
| 引脚 49 | CS6 — Chip-select 6 |
| 引脚 50 | CS7 — Chip-select 7 |
| 引脚 51 | CS8 — Chip-select 8 |
| 引脚 52 | CS9 — Chip-select 9 |
| 引脚 53 | CS10 — Chip-select 10 |
| 引脚 54 | IRQ1 — Interrupt request 1 (per datasheet) |
| 引脚 55 | IRQ2 — Interrupt request 2 |
| 引脚 56 | IRQ3 — Interrupt request 3 |
| 引脚 57 | IRQ4 — Interrupt request 4 |
| 引脚 58 | IRQ5 — Interrupt request 5 |
| 引脚 59 | IRQ6 — Interrupt request 6 |
| 引脚 60 | IRQ7 — Interrupt request 7 |
| 引脚 61 | TPUCH0 — TPU channel 0 (per datasheet) |
| 引脚 62 | TPUCH1 — TPU channel 1 |
| 引脚 63 | TPUCH2 — TPU channel 2 |
| 引脚 64 | TPUCH3 — TPU channel 3 |
| 引脚 65 | TPUCH4 — TPU channel 4 |
| 引脚 66 | TPUCH5 — TPU channel 5 |
| 引脚 67 | TPUCH6 — TPU channel 6 |
| 引脚 68 | TPUCH7 — TPU channel 7 |
| 引脚 69 | TPUCH8 — TPU channel 8 |
| 引脚 70 | TPUCH9 — TPU channel 9 |
| 引脚 71 | TPUCH10 — TPU channel 10 |
| 引脚 72 | TPUCH11 — TPU channel 11 |
| 引脚 73 | TPUCH12 — TPU channel 12 |
| 引脚 74 | TPUCH13 — TPU channel 13 |
| 引脚 75 | TPUCH14 — TPU channel 14 |
| 引脚 76 | TPUCH15 — TPU channel 15 |
| 引脚 77 | QSMTXD — QSM transmit data (per datasheet) |
| 引脚 78 | QSMRXD — QSM receive data |
| 引脚 79 | QSMCLK — QSM clock |
| 引脚 80 | QSPCS — QSM chip select |
| 引脚 81 | XTAL — Crystal oscillator input |
| 引脚 82 | EXTAL — External clock input |
| 引脚 83 | VSS — Ground |
| 引脚 84 | VDD — 5V supply |
| 引脚 85 | RSTOUT — Reset output (per datasheet) |
| 引脚 86 | RESET — Reset input |
| 引脚 87 | HALT — Halt control |
| 引脚 88 | BKPT — Breakpoint / background debug mode |
| 引脚 89 | DSO — Development serial output (per datasheet) |
| 引脚 90 | DSI — Development serial input |
| 引脚 91 | PWM0 — Pulse-width modulation output 0 (per datasheet) |
| 引脚 92 | PWM1 — Pulse-width modulation output 1 |
| 引脚 93 | PWM2 — Pulse-width modulation output 2 |
| 引脚 94 | PWM3 — Pulse-width modulation output 3 |
| 引脚 95 | PWM4 — Pulse-width modulation output 4 |
| 引脚 96 | PWM5 — Pulse-width modulation output 5 |
| 引脚 97 | PWM6 — Pulse-width modulation output 6 |
| 引脚 98 | PWM7 — Pulse-width modulation output 7 |
| 引脚 99 | PWMA0 — Pulse-width modulation A0 (per datasheet) |
| 引脚 100 | PWMA1 — Pulse-width modulation A1 |
| 引脚 101 | PWMA2 — Pulse-width modulation A2 |
| 引脚 102 | PWMA3 — Pulse-width modulation A3 |
| 引脚 103 | PWMA4 — Pulse-width modulation A4 |
| 引脚 104 | PWMA5 — Pulse-width modulation A5 |
| 引脚 105 | PWMA6 — Pulse-width modulation A6 |
| 引脚 106 | PWMA7 — Pulse-width modulation A7 |
| 引脚 107 | TPUSA — TPU sub-address (per datasheet) |
| 引脚 108 | TPUSB — TPU sub-bus |
| 引脚 109 | TPUCLK — TPU clock |
| 引脚 110 | TPUEN — TPU enable |
| 引脚 111 | AVDD — Analog 5V supply (per datasheet) |
| 引脚 112 | AVSS — Analog ground |
| 引脚 113 | VRL — ADC voltage reference low (per datasheet) |
| 引脚 114 | VRH — ADC voltage reference high |
| 引脚 115 | AN0 — Analog input 0 (per datasheet) |
| 引脚 116 | AN1 — Analog input 1 |
| 引脚 117 | AN2 — Analog input 2 |
| 引脚 118 | AN3 — Analog input 3 |
| 引脚 119 | AN4 — Analog input 4 |
| 引脚 120 | AN5 — Analog input 5 |
| 引脚 121 | AN6 — Analog input 6 |
| 引脚 122 | AN7 — Analog input 7 |
| 引脚 123 | TXD — SCI transmit (per datasheet) |
| 引脚 124 | RXD — SCI receive |
| 引脚 125 | SCK — SCI clock |
| 引脚 126 | PCS0 — Peripheral chip select 0 (per datasheet) |
| 引脚 127 | PCS1 — Peripheral chip select 1 |
| 引脚 128 | PCS2 — Peripheral chip select 2 |
| 引脚 129 | PCS3 — Peripheral chip select 3 |
| 引脚 130 | MISO — SPI MISO (per datasheet) |
| 引脚 131 | MOSI — SPI MOSI |
| 引脚 132 | SPICLK — SPI clock |
| 引脚 133 | SPICS — SPI chip select |
| 引脚 134 | WR — Write strobe (per datasheet) |
| 引脚 135 | RD — Read strobe |
| 引脚 136 | AS — Address strobe |
| 引脚 137 | DS — Data strobe |
| 引脚 138 | BG — Bus grant (per datasheet) |
| 引脚 139 | BR — Bus request |
| 引脚 140 | BB — Bus busy |
| 引脚 141 | FC0 — Function code 0 (per datasheet) |
| 引脚 142 | FC1 — Function code 1 |
| 引脚 143 | FC2 — Function code 2 |
| 引脚 144 | VSS — Ground |
典型应用
MC68LK332GCAG16 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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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推荐产品汇总
工程参考数据： MC68LK332GCAG16 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- CPU32 32-bit core at 16.78 MHz with integrated TPU and QSM （对比 MC68LK332ACAG16)
- Pin-compatible 20 MHz speed grade option （对比 MC68332ACAG20)
- Drop-in on the 144-LQFP M68332 family footprint （对比 MC9S12XEQ384CAG)
设计说明
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.
合规信息
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.