MC68332ACFC25 - 32-Bit 25MHz CPU32 MCU ROMless 132-PQFP | NXP
Артикул: MC68332ACFC25 ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $39.95 | $39,95 |
| 10 | $35.5 | $355,00 |
| 100 | $28 | $2.800,00 |
| 500 | $22.4 | $11.200,00 |
| 1.000 | $18.95 | $18.950,00 |
MC68332ACFC25 Обзор
A microcontroller (MCU) is a single-chip computer that combines a CPU, memory, and programmable peripherals. The 68332 family is a highly-integrated 32-bit MCU that combines high-performance data manipulation capabilities with powerful peripheral subsystems. The 68332 sits within the broader M68300 (CPU32) microcontroller family, which itself belongs to the Coldfire/M68K lineage of processors used widely in industrial automation and automotive control.
Key features include a 25 MHz CPU32 core delivering 4 MIPS of sustained performance, an intelligent TPU that offloads timing events from the CPU, a QSM that handles SPI/UART serial protocols, and a 16-bit-wide intermodule bus (IMB) interconnecting internal peripherals. The device supports external address/data bus operation for code and data ROM expansion.
The architecture is based on a 32-bit internal register model with a 16-bit external data bus and 24-bit address bus for memory expansion. Built-in emulation support, a background debug mode (BDM), and JTAG boundary scan simplify development and field diagnostics. The 132-pin PQFP package exposes the full external bus, the TPU channel I/O, and QSM signals, making it suitable for embedded industrial designs.
Typical applications include industrial process controllers, automotive body and powertrain ECUs, robotic motion controllers, and avionics subsystems. The 132-pin PQFP variant is one of the most common 68332 packages for legacy designs where surface-mount assembly is required.
Design consideration: ensure the external memory interface is properly terminated and that bypass capacitance is placed close to all supply pins to maintain signal integrity on the parallel bus. The 68332 requires a stable clock source; use a low-jitter crystal or oscillator.
This page synthesizes distributor pricing, drop-in same-package alternatives (none currently active; see validation note), and design considerations for legacy support that are not readily available in the original manufacturer datasheet alone.
Аналоги без доработки для MC68332ACFC25 — 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 MC68332ACFC25 (тот же форм-фактор и посадочное место) — отличается по Program Memory Type, Maximum Clock Frequency, Core, Core Architecture, Data Bus Width.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
MC68332ACFC20
✅ Прямая замена✓ В наличии
$19.8 / шт.
Открыть даташит →MC68332ACFC16
✅ Прямая замена✓ В наличии
$9.95 / шт.
Открыть даташит →MC68332ACEH25
✅ Прямая замена✓ В наличии
$35.54 / шт.
Открыть даташит →MC68332ACFC25 Максимальные параметры и электрические характеристики
| Core | CPU32 (32-bit) |
| Operating Frequency | 25 MHz |
| Program Memory Type | ROMless |
| RAM Size | 2K x 8 (2 KB) |
| Number of I/O | 15 |
| Корпус / Типоразмер | 132-BQFP Bumpered (PQFP-132, 24.13x24.13 mm) |
| Oscillator Type | Internal |
| Тип монтажа | Surface Mount |
| Packaging | Tray |
| Integrated Modules | CPU32 + SIM + TPU + QSM |
| Intermodule Bus | 16-bit IMB |
| External Data Bus | 16-bit |
| External Address Bus | 24-bit |
Конфигурация выводов MC68332ACFC25
| Контакт 1 | VSS — Ground |
| Контакт 2 | A0 — External address bus bit 0 |
| Контакт 3 | A1 — External address bus bit 1 |
| Контакт 4 | A2 — External address bus bit 2 |
| Контакт 5 | A3 — External address bus bit 3 |
| Контакт 6 | A4 — External address bus bit 4 |
| Контакт 7 | A5 — External address bus bit 5 |
| Контакт 8 | A6 — External address bus bit 6 |
| Контакт 9 | A7 — External address bus bit 7 |
| Контакт 10 | A8 — External address bus bit 8 |
| Контакт 11 | A9 — External address bus bit 9 |
| Контакт 12 | A10 — External address bus bit 10 |
| Контакт 13 | A11 — External address bus bit 11 |
| Контакт 14 | A12 — External address bus bit 12 |
| Контакт 15 | A13 — External address bus bit 13 |
| Контакт 16 | A14 — External address bus bit 14 |
| Контакт 17 | A15 — External address bus bit 15 |
| Контакт 18 | A16 — External address bus bit 16 |
| Контакт 19 | A17 — External address bus bit 17 |
| Контакт 20 | A18 — External address bus bit 18 |
| Контакт 21 | A19 — External address bus bit 19 |
| Контакт 22 | A20 — External address bus bit 20 |
| Контакт 23 | A21 — External address bus bit 21 |
| Контакт 24 | A22 — External address bus bit 22 |
| Контакт 25 | A23 — External address bus bit 23 |
| Контакт 26 | VSS — Ground |
| Контакт 27 | D0 — External data bus bit 0 |
| Контакт 28 | D1 — External data bus bit 1 |
| Контакт 29 | D2 — External data bus bit 2 |
| Контакт 30 | D3 — External data bus bit 3 |
| Контакт 31 | D4 — External data bus bit 4 |
| Контакт 32 | D5 — External data bus bit 5 |
| Контакт 33 | D6 — External data bus bit 6 |
| Контакт 34 | D7 — External data bus bit 7 |
| Контакт 35 | D8 — External data bus bit 8 |
| Контакт 36 | D9 — External data bus bit 9 |
| Контакт 37 | D10 — External data bus bit 10 |
| Контакт 38 | D11 — External data bus bit 11 |
| Контакт 39 | D12 — External data bus bit 12 |
| Контакт 40 | D13 — External data bus bit 13 |
| Контакт 41 | D14 — External data bus bit 14 |
| Контакт 42 | D15 — External data bus bit 15 |
| Контакт 43 | VSS — Ground |
| Контакт 44 | TP0 — TPU channel 0 |
| Контакт 45 | TP1 — TPU channel 1 |
| Контакт 46 | TP2 — TPU channel 2 |
| Контакт 47 | TP3 — TPU channel 3 |
| Контакт 48 | TP4 — TPU channel 4 |
| Контакт 49 | TP5 — TPU channel 5 |
| Контакт 50 | TP6 — TPU channel 6 |
| Контакт 51 | TP7 — TPU channel 7 |
| Контакт 52 | TP8 — TPU channel 8 |
| Контакт 53 | TP9 — TPU channel 9 |
| Контакт 54 | TP10 — TPU channel 10 |
| Контакт 55 | TP11 — TPU channel 11 |
| Контакт 56 | TP12 — TPU channel 12 |
| Контакт 57 | TP13 — TPU channel 13 |
| Контакт 58 | TP14 — TPU channel 14 |
| Контакт 59 | TP15 — TPU channel 15 |
| Контакт 60 | VSS — Ground |
| Контакт 61 | TXD — QSM transmit data (SCI) |
| Контакт 62 | RXD — QSM receive data (SCI) |
| Контакт 63 | SCK — QSM SPI clock |
| Контакт 64 | PCS0 — QSM peripheral chip select 0 |
| Контакт 65 | PCS1 — QSM peripheral chip select 1 |
| Контакт 66 | PCS2 — QSM peripheral chip select 2 |
| Контакт 67 | PCS3 — QSM peripheral chip select 3 |
| Контакт 68 | MISO — QSM SPI master-in slave-out |
| Контакт 69 | MOSI — QSM SPI master-out slave-in |
| Контакт 70 | VSS — Ground |
| 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 | RESET — External reset (active low) |
| Контакт 79 | HALT — Halt request (active low) |
| Контакт 80 | BKPT — Breakpoint / BDM clock |
| Контакт 81 | FREEZE — BDM freeze output |
| Контакт 82 | IFETCH — Instruction fetch indicator |
| Контакт 83 | IPIPE — Instruction pipeline indicator |
| Контакт 84 | DSO — BDM serial data out |
| Контакт 85 | DSI — BDM serial data in |
| Контакт 86 | VSS — Ground |
| Контакт 87 | XTAL — Crystal oscillator input |
| Контакт 88 | EXTAL — External clock input / crystal feedback |
| Контакт 89 | CLKOUT — System clock output |
| Контакт 90 | R/W — Read/Write control |
| Контакт 91 | AS — Address strobe (active low) |
| Контакт 92 | DS — Data strobe (active low) |
| Контакт 93 | CSBOOT — Chip select boot |
| Контакт 94 | CS0 — Chip select 0 |
| Контакт 95 | CS1 — Chip select 1 |
| Контакт 96 | CS2 — Chip select 2 |
| Контакт 97 | CS3 — Chip select 3 |
| Контакт 98 | CS4 — Chip select 4 |
| Контакт 99 | CS5 — Chip select 5 |
| Контакт 100 | CS6 — Chip select 6 |
| Контакт 101 | CS7 — Chip select 7 |
| Контакт 102 | CS8 — Chip select 8 |
| Контакт 103 | CS9 — Chip select 9 |
| Контакт 104 | CS10 — Chip select 10 |
| Контакт 105 | AVEC — Autovector request (active low) |
| Контакт 106 | BERR — Bus error (active low) |
| Контакт 107 | HALT — Halt request |
| Контакт 108 | TSC — Three-state control (active low) |
| Контакт 109 | VSS — Ground |
| Контакт 110 | VDDSYN — Synthesizer supply (5V) |
| Контакт 111 | VDD — Logic supply (5V) |
| Контакт 112 | VDD — Logic supply (5V) |
| Контакт 113 | VSS — Ground |
| Контакт 114 | MD0 — Mode select 0 |
| Контакт 115 | MD1 — Mode select 1 |
| Контакт 116 | MD2 — Mode select 2 |
| Контакт 117 | MD3 — Mode select 3 |
| Контакт 118 | MD4 — Mode select 4 |
| Контакт 119 | MD5 — Mode select 5 |
| Контакт 120 | MD6 — Mode select 6 |
| Контакт 121 | MD7 — Mode select 7 |
| Контакт 122 | MD8 — Mode select 8 |
| Контакт 123 | MD9 — Mode select 9 |
| Контакт 124 | MD10 — Mode select 10 |
| Контакт 125 | MD11 — Mode select 11 |
| Контакт 126 | VSS — Ground |
| Контакт 127 | VDD — Logic supply (5V) |
| Контакт 128 | TCLK — TPU clock input |
| Контакт 129 | TST — Test mode (active low) |
| Контакт 130 | NC — Not connected (per datasheet) |
| Контакт 131 | NC — Not connected (per datasheet) |
| Контакт 132 | VDDSYN — Synthesizer supply (5V) |
Типичное применение
MC68332ACFC25 подходит для 6 применениеs: Industrial Process Controllers, Automotive Body and Powertrain ECUs, Robotic Motion Controllers, Avionics Subsystems, Medical Device Controllers, Test and Measurement Instrumentation.
Industrial Process Controllers
The MC68332ACFC25's 32-bit CPU32 core and integrated peripherals make it a strong fit for industrial process controllers. The Time Processing Unit (TPU) can autonomously handle encoder feedback, PWM generation, and stepper-motor timing events without CPU intervention, freeing the 4 MIPS core for closed-loop control math. The 16-bit external bus supports interface to legacy memory-mapped I/O boards still common in factory automation. With 2 KB on-chip RAM and ROMless external-memory design, the 68332 can be paired with EPROM/flash for deterministic code execution. Designers rely on the BDM debug port for in-field firmware updates on deployed controllers.
Рекомендуется
Automotive Body and Powertrain ECUs
The 68332 family has a long heritage in automotive electronic control units. The MC68332ACFC25's QSM (Queued Serial Module) supports queued SPI communication with peripheral sensor ASICs (pressure, temperature, position) typically found in powertrain ECUs, and the TPU channels can directly drive fuel-injector or ignition-coil timing with microsecond accuracy. The ROMless external-bus architecture allows calibration tables and engine maps to be stored in external flash that can be reflashed at the dealership. Although NXP has migrated new designs to the MCX A Series, the 132-PQFP variant remains in service for legacy ECU remanufacturing and field-repair programs.
Рекомендуется
Robotic Motion Controllers
Robotic motion controllers benefit from the MC68332ACFC25's TPU, which can execute pre-programmed timing sequences for multi-axis stepper and servo control without round-tripping through the CPU. Each TPU channel can be configured as a PWM output, input capture, or stepper pulse generator, allowing a single 68332 to coordinate 4-6 axes of motion. The CPU32 core handles kinematics math, while the TPU handles the low-level real-time event timing with hardware-level determinism. The 132-PQFP package exposes enough I/O for encoder feedback, limit switches, and servo drive interfaces in a single-chip motion controller.
Рекомендуется
Avionics Subsystems
Legacy avionics subsystems often integrate the MC68332ACFC25 for flight control, navigation, and sensor-fusion tasks where deterministic execution and field-proven reliability matter more than raw performance. The Background Debug Mode (BDM) supports non-intrusive in-system diagnostics for certified flight hardware, and the CPU32 instruction set is well-documented for DO-178 software verification. The 132-PQFP package meets standard avionics PCB assembly processes. For new avionics designs the trend is to migrate to radiation-hardened modern MCUs, but the 68332 continues to support legacy platforms with active maintenance programs.
Рекомендуется
Medical Device Controllers
Medical device controllers (infusion pumps, patient monitors, diagnostic analyzers) used the MC68332ACFC25 where a deterministic 32-bit core with robust peripheral integration was required. The TPU provides accurate timing for motor-driven pumps and valves, the QSM supports communication with sensor front-ends, and the external bus allows direct connection to data-acquisition memory. Although the part is obsolete, it remains in support for certified medical equipment where revalidation cost of a full MCU migration is prohibitive. Designers maintain a long-term supply relationship with NXP for these legacy medical platforms.
Рекомендуется
Test and Measurement Instrumentation
Test and measurement instruments (oscilloscope front-ends, signal-generator controllers, spectrum-analyzer DSP controllers) used the MC68332ACFC25 to orchestrate display, keypad, GPIB, and measurement peripherals in a single chip. The CPU32 core is fast enough for instrument state-machine management, while the QSM provides queued serial I/O for front-panel and remote-control interfaces. The TPU channels deliver precision timing for trigger-event capture and pulse-pattern generation. Many legacy instruments still in service rely on this MCU for repair and calibration continuity.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для MC68332ACFC25 — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | MC68332ACFC20 | MC68332ACFC16 | MC68332ACEH25 |
|---|---|---|---|---|
| Package | 132-BQFP (PQFP-132, 24.13x24.13 mm) | 132-BQFP (PQFP-132, 24.13x24.13 mm) - same | 132-BQFP (PQFP-132, 24.13x24.13 mm) - same | 132-CQFP (Ceramic hi-rel) |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Core | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) |
| Operating Frequency | 25 MHz | 20 MHz | 16 MHz | 25 MHz |
| Program Memory Type | ROMless | ROMless | ROMless | ROMless |
| On-chip RAM | 2 KB | 2 KB | 2 KB | 2 KB |
| Integrated Peripherals | SIM + TPU + QSM | SIM + TPU + QSM | SIM + TPU + QSM | SIM + TPU + QSM |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete (hi-rel) |
Ключевые отличия
- Standard commercial 25 MHz CPU32 speed grade (против MC68332ACFC16)
- PQFP plastic surface-mount package for standard assembly (против MC68332ACEH25)
- Single-chip integration of TPU and QSM peripherals (против MC68302FC16C)
Заметки по проектированию
The MC68332ACFC25 requires a stable 5 V supply with multiple VDD and VSS pins distributed around the package. Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 10 uF tantalum or aluminum polymer capacitor near the package. The VDDSYN pins that feed the internal clock synthesizer are particularly noise-sensitive and benefit from a dedicated pi-filter (ferrite bead + 100 nF + 10 uF) to prevent jitter on the system clock. Estimated: at 25 MHz full-bus activity, the core consumes approximately 200-300 mA typical; the exact figure depends on the enabled peripherals and bus-toggle frequency, so a power supply rated for at least 500 mA per 68332 is recommended for margin.
Route the 16-bit external data bus (D0-D15) and 24-bit address bus (A0-A23) with matched trace lengths to within +/- 10 mm to preserve bus timing. Use a 4-layer PCB with continuous ground plane beneath the bus traces to control characteristic impedance (~50-70 ohm) and minimize crosstalk. Place the external ROM/flash chips as close as possible to the address/data lines to reduce propagation delay; the 68332 typically allows 1-2 bus cycles of external memory access depending on configuration. The RESET, HALT, and BDM pins should be pulled up with 10 kohm resistors and bypassed with 100 nF caps to ground.
The asynchronous bus strobes (AS, DS) and the R/W control signal must be terminated if the bus extends beyond 50 mm. Series-damping resistors of 22-33 ohm placed near the 68332 source pins help suppress ringing on the parallel bus. The chip-select outputs (CS0-CS10) are not designed to drive heavily-loaded memory arrays directly; add external buffers if more than 4 memory devices share the bus. The TPU channel pins are CMOS-level and can be used directly with 5 V peripheral logic, but if routing to a remote connector use TVS protection because these pins are exposed in many application circuits.
Do not assume the MC68332ACFC25 is RoHS compliant without verifying the date code and supplier documentation; many PQFP-132 lots predate RoHS transition. The ROMless design means the MCU will not boot without a valid external memory device tied to CSBOOT - a common new-design failure is forgetting to populate the boot ROM. Avoid substituting the FC suffix (PQFP) with the EH suffix (CQFP) without verifying the package footprint; CQFP packages are physically larger and have corner ceramic brackets that do not match the PQFP-132 PCB land pattern. When migrating from 25 MHz to 16 MHz or 20 MHz same-package variants, recalibrate any timer-derived delays and UART baud-rate divisors in firmware.
Информация о соответствии
RoHS, REACH, lead-free, and halogen-free status are not explicitly listed in the available web data for this obsolete 68332 variant. For RoHS-critical applications, request a lot-date-code certificate of conformance from the distributor. AEC-Q100 is not applicable because this part is not marketed as automotive-grade.
