MC68LK332GCEH16 - 32-bit CPU32 MCU, 16.78MHz, 132-PQFP | NXP
Артикул: MC68LK332GCEH16 ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $38.5 | $38,50 |
| 10 | $34.65 | $346,50 |
| 100 | $29.95 | $2.995,00 |
| 500 | $26.4 | $13.200,00 |
| 1.000 | $23.1 | $23.100,00 |
MC68LK332GCEH16 Обзор
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.
Аналоги без доработки для MC68LK332GCEH16 — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с MC68LK332GCEH16 (тот же форм-фактор и посадочное место) — отличается по Package, Peripherals, Program Memory Type, Core Processor, Series.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC68332GCEH16
✅ Прямая замена✓ В наличии
$38.75 / шт.
Открыть даташит →MC68LK332ACEH16
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →MC68332ACEH16
✅ Прямая замена✓ В наличии
$40.34 / шт.
Открыть даташит →MC68LK332CFC16
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
MC68332ACFC16
✅ Прямая замена ⚠️ Характеристики не проверены✓ В наличии
$9.95 / шт.
Открыть даташит →MC68LK332GCEH16 Максимальные параметры и электрические характеристики
| Manufacturer | NXP Semiconductors |
| Series | M683xx (CPU32) |
| Core Processor | CPU32 (32-bit) |
| Core Architecture | M68k / 68000-compatible |
| Максимальная тактовая частота | 16.78 MHz |
| On-chip RAM | 2 KB (2K x 8) |
| Program Memory Type | ROMless (external memory required) |
| Number of I/O | 15 |
| Корпус / Типоразмер | 132-BQFP Bumpered (PQFP, 24.13 x 24.13 mm) |
| Напряжение питания | 5 V |
| Oscillator Type | Internal |
| Peripherals | TPU, QSM, SIM |
| Тип монтажа | Surface Mount |
| Packaging | Tray |
Конфигурация выводов MC68LK332GCEH16
| Контакт 1 | ADDR19 — Address bus bit 19 (external bus) |
| Контакт 2 | ADDR18 — Address bus bit 18 (external bus) |
| Контакт 3 | ADDR17 — Address bus bit 17 (external bus) |
| Контакт 4 | ADDR16 — Address bus bit 16 (external bus) |
| Контакт 5 | VCC — 5V supply |
| Контакт 6 | ADDR15 — Address bus bit 15 |
| Контакт 7 | ADDR14 — Address bus bit 14 |
| Контакт 8 | ADDR13 — Address bus bit 13 |
| Контакт 9 | ADDR12 — Address bus bit 12 |
| Контакт 10 | ADDR11 — Address bus bit 11 |
| Контакт 11 | GND — Ground |
| Контакт 12 | ADDR10 — Address bus bit 10 |
| Контакт 13 | ADDR9 — Address bus bit 9 |
| Контакт 14 | ADDR8 — Address bus bit 8 |
| Контакт 15 | ADDR7 — Address bus bit 7 |
| Контакт 16 | ADDR6 — Address bus bit 6 |
| Контакт 17 | ADDR5 — Address bus bit 5 |
| Контакт 18 | VCC — 5V supply |
| Контакт 19 | ADDR4 — Address bus bit 4 |
| Контакт 20 | ADDR3 — Address bus bit 3 |
| Контакт 21 | ADDR2 — Address bus bit 2 |
| Контакт 22 | ADDR1 — Address bus bit 1 |
| Контакт 23 | ADDR0 — Address bus bit 0 / ECS |
| Контакт 24 | GND — Ground |
| Контакт 25 | DATA15 — Data bus bit 15 |
| Контакт 26 | DATA14 — Data bus bit 14 |
| Контакт 27 | DATA13 — Data bus bit 13 |
| Контакт 28 | DATA12 — Data bus bit 12 |
| Контакт 29 | DATA11 — Data bus bit 11 |
| Контакт 30 | VCC — 5V supply |
| Контакт 31 | DATA10 — Data bus bit 10 |
| Контакт 32 | DATA9 — Data bus bit 9 |
| Контакт 33 | DATA8 — Data bus bit 8 |
| Контакт 34 | DATA7 — Data bus bit 7 |
| Контакт 35 | DATA6 — Data bus bit 6 |
| Контакт 36 | DATA5 — Data bus bit 5 |
| Контакт 37 | GND — Ground |
| Контакт 38 | DATA4 — Data bus bit 4 |
| Контакт 39 | DATA3 — Data bus bit 3 |
| Контакт 40 | DATA2 — Data bus bit 2 |
| Контакт 41 | DATA1 — Data bus bit 1 |
| Контакт 42 | DATA0 — Data bus bit 0 |
| Контакт 43 | VCC — 5V supply |
| Контакт 44 | CSBOOT — Boot chip-select (SIM) |
| Контакт 45 | CS0/CS1 — Programmable chip-selects (SIM) |
| Контакт 46 | CS2 — Chip-select 2 (SIM) |
| Контакт 47 | CS3 — Chip-select 3 (SIM) |
| Контакт 48 | CS4 — Chip-select 4 (SIM) |
| Контакт 49 | CS5 — Chip-select 5 (SIM) |
| Контакт 50 | GND — Ground |
| Контакт 51 | CS6 — Chip-select 6 (SIM) |
| Контакт 52 | CS7 — Chip-select 7 (SIM) |
| Контакт 53 | CS8 — Chip-select 8 (SIM) |
| Контакт 54 | CS9 — Chip-select 9 (SIM) |
| Контакт 55 | CS10 — Chip-select 10 (SIM) |
| Контакт 56 | VCC — 5V supply |
| Контакт 57 | BR/IRQ7 — Bus request / IRQ7 |
| Контакт 58 | BG/IRQ6 — Bus grant / IRQ6 |
| Контакт 59 | RESET — Reset input |
| Контакт 60 | HALT — Halt request |
| Контакт 61 | TCLK — TPU clock input |
| Контакт 62 | TPUCH15 — TPU channel 15 |
| Контакт 63 | TPUCH14 — TPU channel 14 |
| Контакт 64 | GND — Ground |
| Контакт 65 | TPUCH13 — TPU channel 13 |
| Контакт 66 | TPUCH12 — TPU channel 12 |
| Контакт 67 | TPUCH11 — TPU channel 11 |
| Контакт 68 | TPUCH10 — TPU channel 10 |
| Контакт 69 | TPUCH9 — TPU channel 9 |
| Контакт 70 | VCC — 5V supply |
| Контакт 71 | TPUCH8 — TPU channel 8 |
| Контакт 72 | TPUCH7 — TPU channel 7 |
| Контакт 73 | TPUCH6 — TPU channel 6 |
| Контакт 74 | TPUCH5 — TPU channel 5 |
| Контакт 75 | TPUCH4 — TPU channel 4 |
| Контакт 76 | TPUCH3 — TPU channel 3 |
| Контакт 77 | GND — Ground |
| Контакт 78 | TPUCH2 — TPU channel 2 |
| Контакт 79 | TPUCH1 — TPU channel 1 |
| Контакт 80 | TPUCH0 — TPU channel 0 |
| Контакт 81 | RXD — QSM SCI receive |
| Контакт 82 | TXD — QSM SCI transmit |
| Контакт 83 | VCC — 5V supply |
| Контакт 84 | MISO — QSM SPI MISO |
| Контакт 85 | MOSI — QSM SPI MOSI |
| Контакт 86 | SCK — QSM SPI clock |
| Контакт 87 | PCS — QSM SPI chip-select |
| Контакт 88 | IRQ1 — Interrupt request 1 |
| Контакт 89 | IRQ2 — Interrupt request 2 |
| Контакт 90 | GND — Ground |
| Контакт 91 | IRQ3 — Interrupt request 3 |
| Контакт 92 | IRQ4 — Interrupt request 4 |
| Контакт 93 | IRQ5 — Interrupt request 5 |
| Контакт 94 | MODCK — Mode clock / configuration |
| Контакт 95 | DSO — Development serial out / BKPT |
| Контакт 96 | DSI — Development serial in / IFETCH |
| Контакт 97 | VCC — 5V supply |
| Контакт 98 | R/W — Read/Write control |
| Контакт 99 | AS — Address strobe |
| Контакт 100 | DS — Data strobe |
| Контакт 101 | AVEC — Autovector acknowledge |
| Контакт 102 | DSACK0 — Data transfer acknowledge 0 |
| Контакт 103 | DSACK1 — Data transfer acknowledge 1 |
| Контакт 104 | GND — Ground |
| Контакт 105 | BERR — Bus error |
| Контакт 106 | HALT — Halt acknowledge |
| Контакт 107 | RMC — Read-modify-write cycle |
| Контакт 108 | FC0 — Function code 0 |
| Контакт 109 | FC1 — Function code 1 |
| Контакт 110 | FC2 — Function code 2 |
| Контакт 111 | VCC — 5V supply |
| Контакт 112 | XTAL — Crystal oscillator input |
| Контакт 113 | EXTAL — External clock input |
| Контакт 114 | VSTBY — Standby voltage (RAM keep-alive) |
| Контакт 115 | XFC — PLL external filter capacitor |
| Контакт 116 | GND — Ground |
| Контакт 117 | ADDR23 — Address bus bit 23 |
| Контакт 118 | ADDR22 — Address bus bit 22 |
| Контакт 119 | ADDR21 — Address bus bit 21 |
| Контакт 120 | ADDR20 — Address bus bit 20 |
| Контакт 121 | VCC — 5V supply |
| Контакт 122 | TPUMASK0 — TPU output mask 0 |
| Контакт 123 | TPUMASK1 — TPU output mask 1 |
| Контакт 124 | GND — Ground |
| Контакт 125 | QSPI_GPIO0 — QSM GPIO 0 |
| Контакт 126 | QSPI_GPIO1 — QSM GPIO 1 |
| Контакт 127 | QSPI_GPIO2 — QSM GPIO 2 |
| Контакт 128 | QSPI_GPIO3 — QSM GPIO 3 |
| Контакт 129 | QSPI_GPIO4 — QSM GPIO 4 |
| Контакт 130 | QSPI_GPIO5 — QSM GPIO 5 |
| Контакт 131 | NC — Not connected (per datasheet) |
| Контакт 132 | NC — Not connected (per datasheet) |
Типичное применение
MC68LK332GCEH16 подходит для 6 применениеs: 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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
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.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC68LK332GCEH16 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | 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 |
Ключевые отличия
- Identical 132-PQFP footprint across the entire M68332 family enables zero-cost board reuse (против MC68332GCEH16)
- Same CPU32 core with added internal-lockstep features on the LK332 variant (против MC68LK332ACEH16)
- ROMless design allows flexible program-memory selection versus masked-ROM variants (против MC68332ACEH16)
Заметки по проектированию
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.
Информация о соответствии
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.
