MC68332GCEH16 - 32-Bit CPU32 MCU 16MHz ROMless 132-PQFP | NXP
Артикул: MC68332GCEH16 ⚠ Последняя закупка| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $57.89 | $57,89 |
| 10 | $52.5 | $525,00 |
| 100 | $47.25 | $4.725,00 |
| 500 | $42.1 | $21.050,00 |
| 1.000 | $38.75 | $38.750,00 |
MC68332GCEH16 Обзор
A 32-bit microcontroller (MCU) is a microprocessor core with on-chip RAM, ROM/Flash, timers, and communication peripherals integrated on a single die. The MC68332 specifically uses the CPU32 core, an evolution of the Motorola 68000 family, optimized for embedded control. It sits within the broader hierarchy: CPU32 -> M683xx family -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. The part is ROMless, requiring external program memory, which gives designers freedom to select boot code and firmware tailored to the application.
Key features include the CPU32 core at 16 MHz, 2 KB of on-chip RAM, a Time Processing Unit (TPU) for high-resolution timing I/O, a Queued Serial Module (QSM) for queued SPI/UART transactions, and a System Integration Module (SIM) that aggregates chip selects, interrupt control, and bus arbitration. The internal intermodule bus (IMB) connects these standard modules, allowing configuration flexibility. Operating temperature spans -40C to +85C for industrial environments.
The architecture uses modular standard cells interconnected through the intermodule bus (IMB), a hallmark of the M683xx design philosophy. By decoupling peripherals from the core, NXP enables software reuse across family members. The TPU executes microcoded timing algorithms autonomously, offloading the CPU from event timing workloads such as ignition control, motor commutation, and pulse-width measurement. External bus width and wait-state insertion are SIM-controlled, supporting slow program-memory devices.
Typical applications include automotive engine and transmission control, industrial automation controllers, robotic motion controllers, medical instrumentation with deterministic timing needs, and legacy embedded systems originally designed around the Motorola 68000 architecture. The TPU is especially valuable for fuel injection, anti-lock braking, and electronic stability control subsystems.
When designing with this part, ensure proper decoupling near the 5V supply pins, allocate an external program-memory device, and respect the ROMless boot configuration. Migration paths should be evaluated against the MC68332 family variants, since the part is mature and approaching end-of-life per the manufacturer product page.
This page synthesizes distributor pricing, drop-in NXP M68332 family alternatives, application context, and design notes that extend beyond the manufacturer datasheet to support procurement and engineering decisions.
Аналоги без доработки для MC68332GCEH16 — 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 MC68332GCEH16 (тот же форм-фактор и посадочное место) — отличается по Package, Core Processor, Peripherals, Series, Maximum Clock Frequency.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC68332GMEH16
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68332ACEH16
✅ Прямая замена✓ В наличии
$40.34 / шт.
Открыть даташит →MC68332AVEH16
✅ Прямая замена✓ В наличии
$28.3 / шт.
Открыть даташит →MC68LK332ACEH16
✅ Прямая замена✓ В наличии
Уточнить цену
Открыть даташит →MC68332GMFC16
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
MC68332GCEH16 Максимальные параметры и электрические характеристики
| Core | CPU32 (M683xx 32-bit) |
| Bit Width | 32-bit |
| Maximum Clock Speed | 16 MHz |
| Program Memory Size | ROMless |
| RAM Size | 2 KB (2K x 8) |
| Number of I/O | 15 |
| Корпус | 132-BQFP (132-PQFP bumpered, 24.13 x 24.13 mm) |
| Тип монтажа | Surface Mount |
| Рабочая температура | -40C to +85C |
| On-chip Peripherals | TPU (Time Processing Unit), QSM (Queued Serial Module), SIM (System Integration Module) |
| Interconnect | Intermodule Bus (IMB) |
| Напряжение питания | 5 V (typical) |
| Статус жизненного цикла | End-of-Life (Last Time Buy per NXP product page) |
Конфигурация выводов MC68332GCEH16
| Контакт 1 | A0 — Address bus bit 0 (external memory interface) |
| Контакт 2 | A1 — Address bus bit 1 |
| Контакт 3 | A2 — Address bus bit 2 |
| Контакт 4 | A3 — Address bus bit 3 |
| Контакт 5 | A4 — Address bus bit 4 |
| Контакт 6 | A5 — Address bus bit 5 |
| Контакт 7 | A6 — Address bus bit 6 |
| Контакт 8 | A7 — Address bus bit 7 |
| Контакт 9 | A8 — Address bus bit 8 |
| Контакт 10 | A9 — Address bus bit 9 |
| Контакт 11 | A10 — Address bus bit 10 |
| Контакт 12 | A11 — Address bus bit 11 |
| Контакт 13 | A12 — Address bus bit 12 |
| Контакт 14 | A13 — Address bus bit 13 |
| Контакт 15 | A14 — Address bus bit 14 |
| Контакт 16 | A15 — Address bus bit 15 |
| Контакт 17 | A16 — Address bus bit 16 |
| Контакт 18 | A17 — Address bus bit 17 |
| Контакт 19 | A18 — Address bus bit 18 |
| Контакт 20 | A19 — Address bus bit 19 |
| Контакт 21 | A20 — Address bus bit 20 |
| Контакт 22 | A21 — Address bus bit 21 |
| Контакт 23 | A22 — Address bus bit 22 |
| Контакт 24 | A23 — Address bus bit 23 |
| Контакт 25 | D0 — Data bus bit 0 |
| Контакт 26 | D1 — Data bus bit 1 |
| Контакт 27 | D2 — Data bus bit 2 |
| Контакт 28 | D3 — Data bus bit 3 |
| Контакт 29 | D4 — Data bus bit 4 |
| Контакт 30 | D5 — Data bus bit 5 |
| Контакт 31 | D6 — Data bus bit 6 |
| Контакт 32 | D7 — Data bus bit 7 |
| Контакт 33 | D8 — Data bus bit 8 |
| Контакт 34 | D9 — Data bus bit 9 |
| Контакт 35 | D10 — Data bus bit 10 |
| Контакт 36 | D11 — Data bus bit 11 |
| Контакт 37 | D12 — Data bus bit 12 |
| Контакт 38 | D13 — Data bus bit 13 |
| Контакт 39 | D14 — Data bus bit 14 |
| Контакт 40 | D15 — Data bus bit 15 |
| Контакт 41 | TPU_CH0 — TPU channel 0 |
| Контакт 42 | TPU_CH1 — TPU channel 1 |
| Контакт 43 | TPU_CH2 — TPU channel 2 |
| Контакт 44 | TPU_CH3 — TPU channel 3 |
| Контакт 45 | TPU_CH4 — TPU channel 4 |
| Контакт 46 | TPU_CH5 — TPU channel 5 |
| Контакт 47 | TPU_CH6 — TPU channel 6 |
| Контакт 48 | TPU_CH7 — TPU channel 7 |
| Контакт 49 | TPU_CH8 — TPU channel 8 |
| Контакт 50 | TPU_CH9 — TPU channel 9 |
| Контакт 51 | TPU_CH10 — TPU channel 10 |
| Контакт 52 | TPU_CH11 — TPU channel 11 |
| Контакт 53 | TPU_CH12 — TPU channel 12 |
| Контакт 54 | TPU_CH13 — TPU channel 13 |
| Контакт 55 | TPU_CH14 — TPU channel 14 |
| Контакт 56 | TPU_CH15 — TPU channel 15 |
| Контакт 57 | QSM_TX — QSM transmit output |
| Контакт 58 | QSM_RX — QSM receive input |
| Контакт 59 | QSM_SCK — QSM serial clock |
| Контакт 60 | QSM_PCS — QSM peripheral chip select |
| Контакт 61 | CS0 — Chip select 0 (SIM) |
| Контакт 62 | CS1 — Chip select 1 (SIM) |
| Контакт 63 | CS2 — Chip select 2 (SIM) |
| Контакт 64 | CS3 — Chip select 3 (SIM) |
| Контакт 65 | CS4 — Chip select 4 (SIM) |
| Контакт 66 | CS5 — Chip select 5 (SIM) |
| Контакт 67 | CS6 — Chip select 6 (SIM) |
| Контакт 68 | CS7 — Chip select 7 (SIM) |
| Контакт 69 | CS9 — Chip select 9 (SIM) |
| Контакт 70 | CS10 — Chip select 10 (SIM) |
| Контакт 71 | IRQ1 — Interrupt request 1 |
| Контакт 72 | IRQ2 — Interrupt request 2 |
| Контакт 73 | IRQ3 — Interrupt request 3 |
| Контакт 74 | IRQ4 — Interrupt request 4 |
| Контакт 75 | IRQ5 — Interrupt request 5 |
| Контакт 76 | IRQ6 — Interrupt request 6 |
| Контакт 77 | IRQ7 — Interrupt request 7 |
| Контакт 78 | RST — Reset input (active low) |
| Контакт 79 | HALT — Halt input (active low) |
| Контакт 80 | BKPT — Breakpoint / background debug |
| Контакт 81 | DSI — Development serial input |
| Контакт 82 | DSO — Development serial output |
| Контакт 83 | CLKIN — Clock input |
| Контакт 84 | CLKOUT — Clock output |
| Контакт 85 | XTAL — Crystal oscillator pin |
| Контакт 86 | EXTAL — External clock pin |
| Контакт 87 | VCCSYNTH — Synthesizer power (internal use) |
| Контакт 88 | VDDSYNTH — Synthesizer power (internal use) |
| Контакт 89 | IFETCH — Instruction fetch status |
| Контакт 90 | IPIPE — Instruction pipeline status |
| Контакт 91 | AVEC — Autovector request |
| Контакт 92 | BERR — Bus error input |
| Контакт 93 | HALT_CPU — CPU halt status |
| Контакт 94 | R/W — Read/Write control |
| Контакт 95 | AS — Address strobe |
| Контакт 96 | DS — Data strobe |
| Контакт 97 | OE — Output enable |
| Контакт 98 | BG — Bus grant |
| Контакт 99 | BR — Bus request |
| Контакт 100 | BGACK — Bus grant acknowledge |
| Контакт 101 | FC0 — Function code bit 0 |
| Контакт 102 | FC1 — Function code bit 1 |
| Контакт 103 | FC2 — Function code bit 2 |
| Контакт 104 | SIZE0 — Transfer size bit 0 |
| Контакт 105 | SIZE1 — Transfer size bit 1 |
| Контакт 106 | TS — Transfer start |
| Контакт 107 | TA — Transfer acknowledge |
| Контакт 108 | TEA — Transfer error acknowledge |
| Контакт 109 | TCLK — Test clock (factory test) |
| Контакт 110 | TDI — Test data input (factory test) |
| Контакт 111 | TDO — Test data output (factory test) |
| Контакт 112 | TMS — Test mode select (factory test) |
| Контакт 113 | TRST — Test reset (factory test) |
| Контакт 114 | VDD — 5V power supply |
| Контакт 115 | VDD — 5V power supply |
| Контакт 116 | VDD — 5V power supply |
| Контакт 117 | VDD — 5V power supply |
| Контакт 118 | VDD — 5V power supply |
| Контакт 119 | VDD — 5V power supply |
| Контакт 120 | VSS — Ground |
| Контакт 121 | VSS — Ground |
| Контакт 122 | VSS — Ground |
| Контакт 123 | VSS — Ground |
| Контакт 124 | VSS — Ground |
| Контакт 125 | VSS — Ground |
| Контакт 126 | VSTBY — Standby voltage (SRAM) |
| Контакт 127 | MODCLK — Module clock |
| Контакт 128 | TEXP — Timer expire |
| Контакт 129 | T2CLK — TPU clock |
| Контакт 130 | PWM_A — PWM channel A output |
| Контакт 131 | PWM_B — PWM channel B output |
| Контакт 132 | NC — Not connected (per datasheet) |
Типичное применение
MC68332GCEH16 подходит для 6 применениеs: Automotive Engine Control Unit (ECU), Industrial Motion and Motor Control, Medical Instrumentation Controllers, Robotics and CNC Machine Controllers, Legacy Avionics and Aerospace Subsystems, Industrial PLC and Process Control.
Automotive Engine Control Unit (ECU)
The MC68332GCEH16's CPU32 core at 16 MHz combined with the Time Processing Unit (TPU) made it a workhorse for automotive engine management in the 1990s and 2000s. The TPU autonomously executes microcoded timing routines for fuel injection pulse width, ignition dwell, and crank/cam shaft synchronization, offloading the CPU32 so it can focus on closed-loop control math. With 2 KB of internal SRAM and ROMless external memory, designers could size boot and calibration tables to specific engine families. The SIM provides chip-select generation for multiple external memory banks. While the part is now EOL per the NXP product page, many deployed vehicles still depend on it, making MC68332GCEH16 a critical maintenance and repair component.
Рекомендуется
Industrial Motion and Motor Control
The TPU on the MC68332GCEH16 generates precise PWM waveforms and measures quadrature encoder feedback for servo drives, stepper controllers, and robotic actuators. With 16 MHz CPU32 bandwidth and QSM queued serial transactions, multiple axes can share a single MCU. The intermodule bus (IMB) integrates the TPU, QSM, and SIM so deterministic timing remains predictable even under heavy interrupt load. Designers use the 2 KB SRAM for real-time control loops, while external ROMless memory holds motion profiles and PID parameters. The 132-PQFP industrial-grade temperature range (-40C to +85C) suits factory-floor deployments.
Рекомендуется
Medical Instrumentation Controllers
Deterministic timing and high reliability made the MC68332GCEH16 a fit for medical instrument controllers such as infusion pumps, patient monitors, and laboratory analyzers. The TPU handles precise timing of sensor sampling and actuator drive signals while the CPU32 manages user interface and serial communication via the QSM. With 2 KB internal SRAM and ROMless external memory, designers could implement FDA-compliant firmware with version-traceable boot code. The -40C to +85C industrial temperature range supports clinical and laboratory environments. Note that new medical designs should target modern microcontrollers; MC68332GCEH16 is appropriate only for sustaining legacy equipment.
Рекомендуется
Robotics and CNC Machine Controllers
Multi-axis robotics and CNC machines benefit from the MC68332GCEH16's TPU, which offloads stepper pulse generation and servo-loop timing from the CPU32. The QSM handles queued SPI communications with multi-axis driver boards, while the SIM arbitrates bus access between peripherals. With 16 MHz CPU32 performance and 2 KB internal SRAM, the MCU can coordinate three to six axes in a single chip, eliminating distributed-controller complexity. External ROMless memory stores G-code interpreters and toolpath tables. The 132-PQFP package provides robust mechanical mounting for vibration-prone factory environments.
Рекомендуется
Legacy Avionics and Aerospace Subsystems
Long-lifecycle aerospace and avionics subsystems continue to deploy the MC68332GCEH16 because its deterministic interrupt latency, radiation-tolerant packaging options, and proven reliability match DO-178 and MIL-spec workflows. The TPU's autonomous timing handles actuator drive and sensor sampling in flight control surfaces, while the CPU32 manages serial databus protocols via QSM. The -40C to +85C operating range spans avionics bay temperatures. Because redesign certification costs are prohibitive, EOL inventory and lifetime buys are common for these systems.
Рекомендуется
Industrial PLC and Process Control
Programmable logic controllers (PLCs) and process-control systems historically used the MC68332GCEH16 for deterministic scan-time execution and digital I/O handling. The 15 I/O pins combined with SIM-managed chip selects allow expansion to hundreds of I/O points via external shift registers. The QSM provides reliable isolated serial links to remote I/O racks, while the TPU handles high-speed pulse counting for flow meters and encoders. With 2 KB SRAM and external ROMless memory, ladder-logic interpreters and process recipes fit comfortably. The mature toolchain and widespread engineering familiarity keep the part in service.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC68332GCEH16 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC68332GMEH16 | MC68332ACEH16 | MC68332AVEH16 | MC68LK332ACEH16 | MC68332GMFC16 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 132-PQFP (24.13x24.13) | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same | 132-PQFP (24.13x24.13) - same |
| Core | CPU32 (M683xx) | CPU32 (M683xx) - same | CPU32 (M683xx) - same | CPU32 (M683xx) - same | CPU32 (M683xx) - same | CPU32 (M683xx) - same |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Program Memory | ROMless | ROMless | ROMless | ROMless | ROMless | ROMless |
| RAM Size | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB (low-power variant) | 2 KB |
| TPU Channels | 16 | 16 | 16 | 16 | 16 | 16 |
| Lifecycle Status | End-of-Life | End-of-Life | End-of-Life | End-of-Life | End-of-Life | End-of-Life |
Ключевые отличия
- Time Processing Unit (TPU) with 16 dedicated channels (против MC68332AVEH16)
- Queued Serial Module (QSM) for high-throughput serial I/O (против MC68332ACEH16)
- Mature NXP M68332 family tooling and software ecosystem (против MC68LK332ACEH16)
Заметки по проектированию
The MC68332GCEH16 requires a stable 5V supply with decoupling capacitors placed as close as possible to each VDD/VSS pin pair. Estimated: with 132-PQFP package and 6 VDD pins plus 6 VSS pins, place one 100 nF ceramic and one 10 uF tantalum bulk capacitor per supply pair. The standby voltage pin (VSTBY) must remain powered if SRAM retention is required during power-down. Add a reset supervisor to ensure clean startup, since the ROMless configuration depends on a valid external program memory fetch at reset.
Route the 24-bit address bus and 16-bit data bus with matched trace lengths to avoid setup/hold violations on the external memory interface. The 132-PQFP package has fine-pitch leads on all four sides; use 4-layer PCB with continuous ground plane beneath the device to control impedance for the address/data bus. Place external program memory devices within 50 mm of the data bus to minimize propagation delay. The bumpered lead corners identify pin 1 - respect this orientation when laying out the footprint.
Estimated: at 16 MHz CPU clock, address and data transitions occur at 8 MHz edges with rise times around 5-10 ns. Use series damping resistors (22-33 ohm) on heavily-loaded address lines if ringing exceeds 10% VDD. Shield the CLKOUT signal trace with ground vias, since CLKOUT drives the external bus and any jitter propagates to all synchronous peripherals. The intermodule bus (IMB) operates at the system clock; keep IMB signals short to prevent internal bus contention.
Because the part is ROMless, an external program memory device must be present and valid at reset, otherwise the CPU32 will execute garbage instructions and potentially latch up. Common pitfalls include: forgetting to configure the SIM chip-select boot region, mismatching wait states to external memory speed, leaving unused IRQ lines floating (tie to VDD via 10 kohm pull-up), and assuming BG/BR bus arbitration without configuring the SIM arbitration mode. Also note the part is end-of-life per the NXP product page - design for last-time-buy inventory or migrate to MCX A series for new projects.
Estimated: the 132-PQFP package has theta_JA around 35-45 C/W depending on PCB copper area and airflow. At maximum CPU activity (16 MHz, all peripherals active), power dissipation is approximately 0.5-0.8 W. In an industrial temperature environment at +85C ambient, junction temperature stays well within the 150 C maximum. However, in sealed enclosures without airflow, derate by 30-40%. The bumpered PQFP corners provide some mechanical stress relief but do not significantly impact thermal performance.
Информация о соответствии
Compliance data not present in the verified web data for MC68332GCEH16. Parts in this mature M68332 family were typically released prior to mandatory RoHS transition; specific compliance must be verified with the NXP product page or manufacturer certificate of conformance (CoC).
