MC68LK332GCEH16 - 32-bit CPU32 MCU, 16.78MHz, 132-PQFP | NXP
MPN: MC68LK332GCEH16 ✗ پایان تولیدMC68LK332GCEH16 نمای کلی
Background: A microcontroller (MCU) is a single-chip computer containing a CPU core, memory, and peripherals. The MC68332 family uses Freescale/NXP's CPU32 core - a 32-bit extension of the M68k architecture that retains full source compatibility with the 68000 instruction set while adding new instructions for embedded control. In the system hierarchy it sits as a microcontroller > 32-bit MCU > automotive/industrial MCU.
Key features include the TPU, a dedicated co-processor that offloads complex timing tasks (PWM, pulse measurement, motor control) from the CPU, and the QSM, which provides queued serial communications (SPI and SCI) with DMA-style handshaking. The SIM integrates chip selects, interrupt controllers, and clock generation, drastically reducing external glue logic. The ROMless architecture allows designers to use external flash or EPROM, supporting legacy and custom boot configurations.
Technical depth: Standard modules interface through the Intermodule Bus (IMB), a proprietary internal bus that decouples peripherals from the CPU. This architecture was industry-defining for modular embedded design in the 1990s and remains supported by long-lifecycle industrial and automotive customers. The part operates from a 5V supply, and the 16.78 MHz bus rate is derived from an internal oscillator.
Typical applications include industrial motor control using TPU channels, automotive body and chassis controllers, robotics servo control, and legacy equipment retrofits. This page synthesizes NXP product information, distributor availability, drop-in alternatives, and design considerations not all found in the original datasheet.
جایگزین‌های drop-in برای MC68LK332GCEH16 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای MC68LK332GCEH16 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Peripherals, Program Memory Type, Core Processor, Series.
MC68332GCEH16
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68LK332ACEH16
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68332ACEH16
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68LK332CFC16
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
MC68332ACFC16
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MC68LK332GCEH16 حداکثر مقادیر مجاز و مشخصات الکتریکی
| Manufacturer | NXP Semiconductors |
| Series | M683xx (CPU32) |
| Core Processor | CPU32 (32-bit) |
| Core Architecture | M68k / 68000-compatible |
| حداکثر فرکانس کلاک | 16.78 MHz |
| On-chip RAM | 2 KB (2K x 8) |
| Program Memory Type | ROMless (external memory required) |
| Number of I/O | 15 |
| بسته‌بندی / کیس | 132-BQFP Bumpered (PQFP, 24.13 x 24.13 mm) |
| ولتاژ تغذیه | 5 V |
| Oscillator Type | Internal |
| Peripherals | TPU, QSM, SIM |
| نوع نصب | Surface Mount |
| Packaging | Tray |
پیکربندی پین MC68LK332GCEH16
| پین 1 | ADDR19 — Address bus bit 19 (external bus) |
| پین 2 | ADDR18 — Address bus bit 18 (external bus) |
| پین 3 | ADDR17 — Address bus bit 17 (external bus) |
| پین 4 | ADDR16 — Address bus bit 16 (external bus) |
| پین 5 | VCC — 5V supply |
| پین 6 | ADDR15 — Address bus bit 15 |
| پین 7 | ADDR14 — Address bus bit 14 |
| پین 8 | ADDR13 — Address bus bit 13 |
| پین 9 | ADDR12 — Address bus bit 12 |
| پین 10 | ADDR11 — Address bus bit 11 |
| پین 11 | GND — Ground |
| پین 12 | ADDR10 — Address bus bit 10 |
| پین 13 | ADDR9 — Address bus bit 9 |
| پین 14 | ADDR8 — Address bus bit 8 |
| پین 15 | ADDR7 — Address bus bit 7 |
| پین 16 | ADDR6 — Address bus bit 6 |
| پین 17 | ADDR5 — Address bus bit 5 |
| پین 18 | VCC — 5V supply |
| پین 19 | ADDR4 — Address bus bit 4 |
| پین 20 | ADDR3 — Address bus bit 3 |
| پین 21 | ADDR2 — Address bus bit 2 |
| پین 22 | ADDR1 — Address bus bit 1 |
| پین 23 | ADDR0 — Address bus bit 0 / ECS |
| پین 24 | GND — Ground |
| پین 25 | DATA15 — Data bus bit 15 |
| پین 26 | DATA14 — Data bus bit 14 |
| پین 27 | DATA13 — Data bus bit 13 |
| پین 28 | DATA12 — Data bus bit 12 |
| پین 29 | DATA11 — Data bus bit 11 |
| پین 30 | VCC — 5V supply |
| پین 31 | DATA10 — Data bus bit 10 |
| پین 32 | DATA9 — Data bus bit 9 |
| پین 33 | DATA8 — Data bus bit 8 |
| پین 34 | DATA7 — Data bus bit 7 |
| پین 35 | DATA6 — Data bus bit 6 |
| پین 36 | DATA5 — Data bus bit 5 |
| پین 37 | GND — Ground |
| پین 38 | DATA4 — Data bus bit 4 |
| پین 39 | DATA3 — Data bus bit 3 |
| پین 40 | DATA2 — Data bus bit 2 |
| پین 41 | DATA1 — Data bus bit 1 |
| پین 42 | DATA0 — Data bus bit 0 |
| پین 43 | VCC — 5V supply |
| پین 44 | CSBOOT — Boot chip-select (SIM) |
| پین 45 | CS0/CS1 — Programmable chip-selects (SIM) |
| پین 46 | CS2 — Chip-select 2 (SIM) |
| پین 47 | CS3 — Chip-select 3 (SIM) |
| پین 48 | CS4 — Chip-select 4 (SIM) |
| پین 49 | CS5 — Chip-select 5 (SIM) |
| پین 50 | GND — Ground |
| پین 51 | CS6 — Chip-select 6 (SIM) |
| پین 52 | CS7 — Chip-select 7 (SIM) |
| پین 53 | CS8 — Chip-select 8 (SIM) |
| پین 54 | CS9 — Chip-select 9 (SIM) |
| پین 55 | CS10 — Chip-select 10 (SIM) |
| پین 56 | VCC — 5V supply |
| پین 57 | BR/IRQ7 — Bus request / IRQ7 |
| پین 58 | BG/IRQ6 — Bus grant / IRQ6 |
| پین 59 | RESET — Reset input |
| پین 60 | HALT — Halt request |
| پین 61 | TCLK — TPU clock input |
| پین 62 | TPUCH15 — TPU channel 15 |
| پین 63 | TPUCH14 — TPU channel 14 |
| پین 64 | GND — Ground |
| پین 65 | TPUCH13 — TPU channel 13 |
| پین 66 | TPUCH12 — TPU channel 12 |
| پین 67 | TPUCH11 — TPU channel 11 |
| پین 68 | TPUCH10 — TPU channel 10 |
| پین 69 | TPUCH9 — TPU channel 9 |
| پین 70 | VCC — 5V supply |
| پین 71 | TPUCH8 — TPU channel 8 |
| پین 72 | TPUCH7 — TPU channel 7 |
| پین 73 | TPUCH6 — TPU channel 6 |
| پین 74 | TPUCH5 — TPU channel 5 |
| پین 75 | TPUCH4 — TPU channel 4 |
| پین 76 | TPUCH3 — TPU channel 3 |
| پین 77 | GND — Ground |
| پین 78 | TPUCH2 — TPU channel 2 |
| پین 79 | TPUCH1 — TPU channel 1 |
| پین 80 | TPUCH0 — TPU channel 0 |
| پین 81 | RXD — QSM SCI receive |
| پین 82 | TXD — QSM SCI transmit |
| پین 83 | VCC — 5V supply |
| پین 84 | MISO — QSM SPI MISO |
| پین 85 | MOSI — QSM SPI MOSI |
| پین 86 | SCK — QSM SPI clock |
| پین 87 | PCS — QSM SPI chip-select |
| پین 88 | IRQ1 — Interrupt request 1 |
| پین 89 | IRQ2 — Interrupt request 2 |
| پین 90 | GND — Ground |
| پین 91 | IRQ3 — Interrupt request 3 |
| پین 92 | IRQ4 — Interrupt request 4 |
| پین 93 | IRQ5 — Interrupt request 5 |
| پین 94 | MODCK — Mode clock / configuration |
| پین 95 | DSO — Development serial out / BKPT |
| پین 96 | DSI — Development serial in / IFETCH |
| پین 97 | VCC — 5V supply |
| پین 98 | R/W — Read/Write control |
| پین 99 | AS — Address strobe |
| پین 100 | DS — Data strobe |
| پین 101 | AVEC — Autovector acknowledge |
| پین 102 | DSACK0 — Data transfer acknowledge 0 |
| پین 103 | DSACK1 — Data transfer acknowledge 1 |
| پین 104 | GND — Ground |
| پین 105 | BERR — Bus error |
| پین 106 | HALT — Halt acknowledge |
| پین 107 | RMC — Read-modify-write cycle |
| پین 108 | FC0 — Function code 0 |
| پین 109 | FC1 — Function code 1 |
| پین 110 | FC2 — Function code 2 |
| پین 111 | VCC — 5V supply |
| پین 112 | XTAL — Crystal oscillator input |
| پین 113 | EXTAL — External clock input |
| پین 114 | VSTBY — Standby voltage (RAM keep-alive) |
| پین 115 | XFC — PLL external filter capacitor |
| پین 116 | GND — Ground |
| پین 117 | ADDR23 — Address bus bit 23 |
| پین 118 | ADDR22 — Address bus bit 22 |
| پین 119 | ADDR21 — Address bus bit 21 |
| پین 120 | ADDR20 — Address bus bit 20 |
| پین 121 | VCC — 5V supply |
| پین 122 | TPUMASK0 — TPU output mask 0 |
| پین 123 | TPUMASK1 — TPU output mask 1 |
| پین 124 | GND — Ground |
| پین 125 | QSPI_GPIO0 — QSM GPIO 0 |
| پین 126 | QSPI_GPIO1 — QSM GPIO 1 |
| پین 127 | QSPI_GPIO2 — QSM GPIO 2 |
| پین 128 | QSPI_GPIO3 — QSM GPIO 3 |
| پین 129 | QSPI_GPIO4 — QSM GPIO 4 |
| پین 130 | QSPI_GPIO5 — QSM GPIO 5 |
| پین 131 | NC — Not connected (per datasheet) |
| پین 132 | NC — Not connected (per datasheet) |
کاربردهای معمول
MC68LK332GCEH16 مناسب است برای 6 کاربردs: Industrial Servo Motor Control, Automotive Body and Chassis Controllers, Robotics and CNC Machine Controllers, Industrial Instrumentation and Data Acquisition, Legacy Telecom Line Card Control, Avionics Subsystem Controllers (Legacy).
Industrial Servo Motor Control
The MC68LK332GCEH16's integrated Time Processing Unit (TPU) executes PWM generation, pulse-width measurement, and quadrature decoding autonomously, offloading timing-critical tasks from the CPU32 core. This makes the part ideal for industrial servo drives and stepper controllers in the 10-50 kHz switching range. Engineers benefit from 2KB on-chip RAM for fast loop variables while storing the application in external EPROM mapped via the SIM chip-select logic. Unlike newer Cortex-M parts, the MC68LK332 provides deterministic interrupt latency through its SIM, which is critical for closed-loop motor control where jitter translates directly into torque ripple. The 132-PQFP package supports legacy industrial backplanes still in service.
پیشنهادی
Automotive Body and Chassis Controllers
The MC68LK332GCEH16 was widely adopted in automotive body controllers (window lifts, seat control, HVAC flaps) and chassis subsystems where deterministic real-time response matters more than raw clock speed. The TPU handles multiple PWM channels for motor drivers and lighting, while the QSM provides SCI links to other ECUs over the vehicle CAN bridge. With 16.78 MHz and 32-bit instructions, the part can service 15 I/O lines plus serial channels without software bottlenecks. Although obsolete for new automotive designs, the MC68LK332 remains in service fleets and aftermarket parts programs where pin compatibility with the 132-PQFP footprint is essential for repair without board rework.
پیشنهادی
Robotics and CNC Machine Controllers
The MC68LK332GCEH16 is a strong fit for legacy robotics and CNC controllers thanks to its combination of CPU32 throughput, TPU-driven servo loops, and QSM serial links. The 32-bit core executes trajectory planner code while the TPU independently maintains up to 16 timing channels for axis PWM and encoder feedback. With 2KB on-chip RAM the CPU32 handles PID loops for multi-axis machines and can serve as the master controller over RS-485 or SPI links to per-axis drives. The 132-PQFP package remains common in industrial backplane designs where existing CNC retrofit programs need an exact pin-compatible MCU.
پیشنهادی
Industrial Instrumentation and Data Acquisition
For data-acquisition front-ends and process instrumentation, the MC68LK332GCEH16 combines the CPU32's 32-bit math with the QSM's serial channels for sensor interfacing. The part streams converted data over SCI or SPI to a host controller while the TPU maintains precise sample-timing intervals. Its 5V supply rail is well matched to legacy industrial signal chains. Although the 2KB on-chip RAM is modest, external SRAM expansion via the SIM chip-select pins supports buffer sizes typical of process-control systems. The 132-PQFP footprint is also accepted by test fixtures already deployed for calibration and burn-in.
پیشنهادی
Legacy Telecom Line Card Control
The MC68LK332GCEH16 was designed into telecom line cards and central-office control boards where the CPU32's deterministic interrupt response and QSM serial ports simplified multi-port management. The integrated SIM provides chip-select decoding for the multiple EPROM and SRAM devices typical of telecom firmware storage, eliminating external glue logic. With 16.78 MHz and 32-bit instructions, the part manages switch-hook detection, ringing control, and codec handshaking in real time. The 132-PQFP package remains in service on legacy backplanes and is required for repair-only programs.
پیشنهادی
Avionics Subsystem Controllers (Legacy)
Although the MC68LK332GCEH16 is obsolete, it remains specified in some legacy avionics subsystems (actuator controllers, cockpit lighting, fuel-system monitors) where its deterministic interrupt structure and QSM serial channels provide reliable real-time control. The TPU generates precision PWM for servo actuators while the CPU32 runs the supervisor loop. The 132-PQFP package is qualified in legacy DO-160 environmental windows for certain platform programs. Engineers maintaining these systems rely on the exact pin-compatible MC68332 family to support repair and overhaul pipelines without re-laying out boards.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MC68LK332GCEH16 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | MC68332GCEH16 | MC68LK332ACEH16 | MC68332ACEH16 | MC68LK332CFC16 | MC68332ACFC16 |
|---|---|---|---|---|---|---|
| Package | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) - same | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) - same | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) - same | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) - same | 132-BQFP Bumpered (PQFP, 24.13x24.13 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) |
| Maximum Clock Frequency | 16.78 MHz | 16 MHz | 16.78 MHz | 16 MHz | 16.78 MHz | 16 MHz |
| On-chip RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Program Memory | ROMless | ROMless | ROMless | ROMless | ROMless | ROMless |
| Peripherals | TPU, QSM, SIM | TPU, QSM, SIM | TPU, QSM, SIM | TPU, QSM, SIM | TPU, QSM, SIM | TPU, QSM, SIM |
| Operating Temperature Grade | Industrial (G suffix) | Industrial (G suffix) | Automotive (A suffix) | Automotive (A suffix) | Industrial (C suffix) | Automotive (A suffix, C grade) |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
تفاوت‌های کلیدی
- Identical 132-PQFP footprint across the entire M68332 family enables zero-cost board reuse (در مقابلMC68332GCEH16)
- Same CPU32 core with added internal-lockstep features on the LK332 variant (در مقابلMC68LK332ACEH16)
- ROMless design allows flexible program-memory selection versus masked-ROM variants (در مقابلMC68332ACEH16)
یادداشت‌های طراحی
The MC68LK332GCEH16 requires a stable 5V supply; the VSTBY pin must be connected to a backup supply (typically a coin cell or super-cap) to retain the 2KB on-chip static RAM during power-down. Add bulk decoupling (10uF tantalum) close to each VCC pin and 0.1uF ceramic bypass capacitors near every supply pair to suppress switching noise from the TPU output transitions. The VSTBY current is in the microampere range - see NXP datasheet for exact retention current when sizing the backup source.
The 132-PQFP package has fine-pitch leads (0.635 mm pitch typical); the Bumpered corners help protect the leads during handling but do not relax PCB layout rules. Use 4-layer PCB with continuous ground plane directly under the IC to control impedance on the address and data buses, which toggle at 16.78 MHz. Match the trace lengths of DS, AS, and R/W strobes to avoid skew, and route CLKOUT away from analog sections to minimize crosstalk with the VCO-controlled PLL filter capacitor on XFC.
Do not assume the MC68LK332GCEH16 has internal Flash - it is ROMless, requiring external EPROM or Flash for program storage. Mapping errors in the System Integration Module (SIM) chip-select configuration are the most common bring-up failures; verify CSBOOT and CS0/CS1 base-address registers against the actual memory device addresses. Also confirm the PLL filter capacitor value on XFC matches the NXP reference design - a wrong value causes clock jitter or lock failure, leading to intermittent operation across temperature.
Place external memory (EPROM/Flash and SRAM) as close to the address and data bus pins as possible to minimize bus-loading and reflection. The 32-bit address bus plus 16-bit data bus totals 48 high-speed signals; route them over a continuous ground plane and use series damping resistors (22-33 ohm) near the MCU on heavily-loaded signals if needed. Keep the XFC PLL filter capacitor within 5mm of the pin with a short, guarded trace, since noise coupling into XFC directly modulates the system clock.
اطلاعات انطباق
Compliance status not stated in verified web data; the part is obsolete per NXP product page and the original 1996 datasheet predates current RoHS/REACH documentation. Designers should request a compliance certificate from the distributor for any new procurement.
