MC68332GVAG25 - 25MHz CPU32 MCU 2KRAM TPU QSM | NXP
MPN: MC68332GVAG25 ✗ Cuối đờiMC68332GVAG25 Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a processor core, memory, and programmable input/output peripherals integrated on one integrated circuit. The M683xx family belongs to the broader category of 32-bit embedded microcontrollers, descendants of the Motorola 68000 architecture that evolved into the Freescale (now NXP) ColdFire and Power Architecture lines. Within the embedded hierarchy, MCUs sit above digital signal processors in compute capability but below microprocessors in raw performance, optimized for real-time deterministic control tasks where reliability and interrupt latency dominate over throughput.
Key features include the dedicated Timer Processing Unit that offloads complex timing operations from the CPU, the Queued Serial Module providing SPI and SCI/UART serial communication, two Kbytes of dual-ported system RAM for shared CPU/peripheral access, and the CPU32 instruction set extending the 68000 with enhanced addressing modes. The intermodule bus (IMB) connects these blocks at high bandwidth, enabling deterministic peripheral-to-CPU data transfers without external glue logic.
The MC68332 architecture uses a 32-bit internal architecture with 16-bit external data bus and 24-bit external address bus, supporting up to 16 Mbytes of linear address space. Operating voltage spans 4.5V to 5.5V with 31 I/O ports and JTAG/BDM background-debug interface. The device is widely used in automotive engine control, industrial automation, and avionics applications where the TPU's hardware timing channels simplify PWM generation and input capture tasks.
Typical applications include automotive engine management, industrial servo control, robotics motion controllers, and embedded networking equipment. Its TPU excels at generating complex PWM waveforms and decoding quadrature encoder signals without burdening the main CPU.
When designing with this part, consider the 5V supply requirement, ensure external memory is correctly mapped into the linear address space, and use the BDM port for non-intrusive firmware development. The ROMless configuration requires external boot memory, typically a parallel EPROM/Flash connected through the IMB.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho MC68332GVAG25 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MC68332GVAG25 (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, Core, Data Bus Width, Mounting Type.
MC68332GCAG25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68332ACAG25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68332ACAG16
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MC68LK332ACAG16
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68331CAG25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68LK332ACEH16
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MC68332GVAG25 Tỷ lệ tối đa & tính chất điện
| Core | CPU32 (M683xx) |
| Architecture | 32-bit |
| Maximum Clock Speed | 25 MHz |
| Bề rộng đường dữ liệu | 16-bit external |
| Address Bus Width | 24-bit |
| Program Memory Type | ROMless |
| Internal RAM | 2 KB |
| Điện áp cung cấp | 4.5 V to 5.5 V |
| I/O Ports | 31 |
| Nhiệt độ hoạt động | -40C to +105C (industrial, V suffix) |
| Hộp | 144-LQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount |
| Integrated Peripherals | TPU (Timer Processing Unit), QSM (Queued Serial Module) |
| Debug Interface | BDM (Background Debug Mode) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MC68332GVAG25
| Chân 1 | A0 — Address bus bit 0 |
| Chân 2 | A1 — Address bus bit 1 |
| Chân 3 | A2 — Address bus bit 2 |
| Chân 4 | A3 — Address bus bit 3 |
| Chân 5 | A4 — Address bus bit 4 |
| Chân 6 | A5 — Address bus bit 5 |
| Chân 7 | A6 — Address bus bit 6 |
| Chân 8 | A7 — Address bus bit 7 |
| Chân 9 | A8 — Address bus bit 8 |
| Chân 10 | A9 — Address bus bit 9 |
| Chân 11 | A10 — Address bus bit 10 |
| Chân 12 | A11 — Address bus bit 11 |
| Chân 13 | A12 — Address bus bit 12 |
| Chân 14 | A13 — Address bus bit 13 |
| Chân 15 | A14 — Address bus bit 14 |
| Chân 16 | A15 — Address bus bit 15 |
| Chân 17 | A16 — Address bus bit 16 |
| Chân 18 | A17 — Address bus bit 17 |
| Chân 19 | A18 — Address bus bit 18 |
| Chân 20 | A19 — Address bus bit 19 |
| Chân 21 | A20 — Address bus bit 20 |
| Chân 22 | A21 — Address bus bit 21 |
| Chân 23 | A22 — Address bus bit 22 |
| Chân 24 | A23 — Address bus bit 23 |
| Chân 25 | D0 — Data bus bit 0 |
| Chân 26 | D1 — Data bus bit 1 |
| Chân 27 | D2 — Data bus bit 2 |
| Chân 28 | D3 — Data bus bit 3 |
| Chân 29 | D4 — Data bus bit 4 |
| Chân 30 | D5 — Data bus bit 5 |
| Chân 31 | D6 — Data bus bit 6 |
| Chân 32 | D7 — Data bus bit 7 |
| Chân 33 | D8 — Data bus bit 8 |
| Chân 34 | D9 — Data bus bit 9 |
| Chân 35 | D10 — Data bus bit 10 |
| Chân 36 | D11 — Data bus bit 11 |
| Chân 37 | D12 — Data bus bit 12 |
| Chân 38 | D13 — Data bus bit 13 |
| Chân 39 | D14 — Data bus bit 14 |
| Chân 40 | D15 — Data bus bit 15 |
| Chân 41 | VCC — 5V supply |
| Chân 42 | VCC — 5V supply |
| Chân 43 | VCC — 5V supply |
| Chân 44 | GND — Ground |
| Chân 45 | GND — Ground |
| Chân 46 | GND — Ground |
| Chân 47 | RESET — Reset input, active low |
| Chân 48 | HALT — Halt input |
| Chân 49 | BR |
| Chân 50 | BG |
| Chân 51 | BGACK |
| Chân 52 | IFETCH |
| Chân 53 | DS |
| Chân 54 | DSACK0 |
| Chân 55 | DSACK1 |
| Chân 56 | AS |
| Chân 57 | R/W |
| Chân 58 | SIZ0 |
| Chân 59 | SIZ1 |
| Chân 60 | CS0 |
| Chân 61 | CS1 |
| Chân 62 | CS2 |
| Chân 63 | CS3 |
| Chân 64 | CS4 |
| Chân 65 | CS5 |
| Chân 66 | CS6 |
| Chân 67 | CS7 |
| Chân 68 | CS8 |
| Chân 69 | CS9 |
| Chân 70 | CS10 |
| Chân 71 | IRQ1 |
| Chân 72 | IRQ2 |
| Chân 73 | IRQ3 |
| Chân 74 | IRQ4 |
| Chân 75 | IRQ5 |
| Chân 76 | IRQ6 |
| Chân 77 | IRQ7 |
| Chân 78 | TCLK |
| Chân 79 | TPUCH0 |
| Chân 80 | TPUCH1 |
| Chân 81 | TPUCH2 |
| Chân 82 | TPUCH3 |
| Chân 83 | TPUCH4 |
| Chân 84 | TPUCH5 |
| Chân 85 | TPUCH6 |
| Chân 86 | TPUCH7 |
| Chân 87 | TPUCH8 |
| Chân 88 | TPUCH9 |
| Chân 89 | TPUCH10 |
| Chân 90 | TPUCH11 |
| Chân 91 | TPUCH12 |
| Chân 92 | TPUCH13 |
| Chân 93 | TPUCH14 |
| Chân 94 | TPUCH15 |
| Chân 95 | TXD |
| Chân 96 | RXD |
| Chân 97 | SCK |
| Chân 98 | MOSI |
| Chân 99 | MISO |
| Chân 100 | PCS |
| Chân 101 | DATA0 |
| Chân 102 | DATA1 |
| Chân 103 | DATA2 |
| Chân 104 | DATA3 |
| Chân 105 | PORTE0 |
| Chân 106 | PORTE1 |
| Chân 107 | PORTE2 |
| Chân 108 | PORTE3 |
| Chân 109 | PORTE4 |
| Chân 110 | PORTE5 |
| Chân 111 | PORTE6 |
| Chân 112 | PORTE7 |
| Chân 113 | PORTF0 |
| Chân 114 | PORTF1 |
| Chân 115 | PORTF2 |
| Chân 116 | PORTF3 |
| Chân 117 | PORTF4 |
| Chân 118 | PORTF5 |
| Chân 119 | PORTF6 |
| Chân 120 | PORTF7 |
| Chân 121 | DSCLK |
| Chân 122 | DSDI |
| Chân 123 | DSO |
| Chân 124 | BKPT |
| Chân 125 | IFETCH |
| Chân 126 | IPIPE |
| Chân 127 | FREEZE |
| Chân 128 | MTMOD0 |
| Chân 129 | MTMOD1 |
| Chân 130 | XTAL |
| Chân 131 | EXTAL |
| Chân 132 | VCC — 5V supply |
| Chân 133 | VCC — 5V supply |
| Chân 134 | GND — Ground |
| Chân 135 | GND — Ground |
| Chân 136 | PORTA0 |
| Chân 137 | PORTA1 |
| Chân 138 | PORTA2 |
| Chân 139 | PORTA3 |
| Chân 140 | PORTA4 |
| Chân 141 | PORTA5 |
| Chân 142 | PORTA6 |
| Chân 143 | PORTA7 |
| Chân 144 | PORTA8 |
Ứng dụng tiêu biểu
MC68332GVAG25 phù hợp cho 6 Áp dụngs: Automotive Engine Management, Industrial Servo Motor Control, Robotics Motion Controller, Avionics Flight Control Systems, Industrial Networking Equipment, Test and Measurement Instrumentation.
Automotive Engine Management
The MC68332GVAG25's 25 MHz CPU32 core, 2 KB of dual-ported RAM, and dedicated Timer Processing Unit make it well-suited for automotive engine management ECUs. Its TPU offloads critical tasks like crank/cam tooth decoding, fuel injection PWM generation, and idle speed control from the CPU, allowing the CPU32 core to execute spark/fuel algorithms in real time. The 16-bit external data bus and 24-bit address space provide sufficient bandwidth for sensor sampling up to 16 Mbytes of external Flash/ROM for calibration tables. Operates from a 5V supply compatible with 12V automotive rails after regulation, and the industrial -40C to +105C temperature grade handles under-hood thermal stress. Engineers have used the MC68332 in production engine ECUs since the early 1990s.
Được đề xuất
Industrial Servo Motor Control
The MC68332GVAG25's TPU generates multi-channel PWM waveforms required for three-phase servo drives, with hardware-assisted commutation timing for brushless DC motors. Its 2 KB of shared RAM supports real-time current/voltage feedback loops at sub-millisecond cycle times without CPU saturation. The BDM debug interface allows non-intrusive tuning of PID gains during commissioning, while the 16-bit data bus interfaces directly to analog position sensors through external ADC logic. The 5V supply requirement is easily met from 24V industrial bus rails via an LM7805 or switching regulator. The 144-LQFP footprint provides adequate thermal dissipation at the 25 MHz operating point.
Được đề xuất
Robotics Motion Controller
The MC68332GVAG25 integrates the CPU32 core with the TPU's quadrature decoder mode, enabling direct connection to incremental encoders on robotic joints without external counters. The QSM provides SPI links to multi-axis driver boards while the 24-bit address bus maps up to 16 Mbytes of external Flash for motion profile libraries. At 25 MHz, the CPU32 executes six-axis inverse kinematics at the 1 ms control loop cadence required by most industrial robots. The 144-LQFP package supports compact PCB designs. The -40C to +105C grade handles harsh robotic cell environments.
Được đề xuất
Avionics Flight Control Systems
The MC68332GVAG25 has a long heritage in certified avionics systems where deterministic interrupt response is non-negotiable. The CPU32 core provides predictable execution timing, the TPU handles actuator PWM, and the BDM port supports flight-line firmware updates. With 2 KB of dual-ported RAM and external ROM up to 16 Mbytes, it implements DO-178 certifiable flight control loops. The 5V single-supply requirement simplifies power architecture. Operating temperature range -40C to +105C covers avionics bay environments, and the mature toolchain eases certification.
Được đề xuất
Industrial Networking Equipment
The MC68332GVAG25's QSM module implements SCI/UART and SPI for connecting to industrial Ethernet controllers or fieldbus bridges (PROFIBUS, CAN with external transceiver). The CPU32 core at 25 MHz runs TCP/IP or proprietary fieldbus stacks, while the 16-bit data bus allows fast DMA transfers to/from external packet memory. The 144-LQFP package fits in standard 19-inch rack-mount networking hardware, and the 5V supply integrates with telecom-grade -48V input through intermediate regulators.
Được đề xuất
Test and Measurement Instrumentation
The MC68332GVAG25 powers bench-top instruments such as oscilloscopes, logic analyzers, and arbitrary waveform generators where its TPU generates precision timing triggers and the CPU32 core processes measurement data. The 24-bit address bus interfaces to large waveform memory buffers, and the QSM provides RS-232/RS-485 for instrument control buses (GPIB bridges). The 25 MHz clock supports real-time FFT and statistics calculations. The -40C to +105C grade accommodates laboratory environments and field-portable instruments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MC68332GVAG25 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC68332GCAG25 | MC68332ACAG25 | MC68332ACAG16 | MC68LK332ACAG16 | MC68331CAG25 | MC68LK332ACEH16 |
|---|---|---|---|---|---|---|---|
| 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 (20x20) - same |
| Brand | NXP Semiconductors | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same | NXP Semiconductors - same |
| Clock Speed | 25 MHz | 25 MHz - same | 25 MHz - same | 16 MHz (-36%) | 16 MHz (-36%) | 25 MHz - same | 16 MHz (-36%) |
| Internal RAM | 2 KB | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same |
| Program Memory | ROMless | ROMless - same | ROMless - same | ROMless - same | ROMless - same | ROMless - same | ROMless - same |
| TPU (Timer Processing Unit) | Yes | Yes - same | Yes - same | Yes - same | Yes - same | No (uses GPT) | Yes - same |
| Supply Voltage | 4.5V to 5.5V | 4.5V to 5.5V - same | 4.5V to 5.5V - same | 4.5V to 5.5V - same | 4.5V to 5.5V - same | 4.5V to 5.5V - same | 4.5V to 5.5V - same |
| Architecture | CPU32 (32-bit) | CPU32 - same | CPU32 - same | CPU32 - same | CPU32 - same | CPU32 - same | CPU32 - same |
Bảo phân biệt quan trọng
- Higher 25 MHz clock vs. 16 MHz low-power MC68LK332 variants (vsMC68LK332ACEH16)
- Industrial temperature grade (-40C to +105C) (vsMC68332GCAG25)
- Dedicated TPU vs. simple GPT on MC68331 (vsMC68331CAG25)
Ghi chú thiết kế
Estimated: the MC68332GVAG25 draws approximately 100-200 mA at 25 MHz with all peripherals active, requiring a 5V regulator capable of delivering at least 250 mA. Decouple each VCC pin with a 100 nF ceramic capacitor placed within 5 mm of the package, plus a 10 uF bulk tantalum on the main supply. The 5V rail noise must be less than 50 mVpp to prevent PLL jitter on the internal clock synthesizer.
Route the 16-bit data bus with matched trace lengths within 25 mm to prevent skew on DS, AS, and DSACK timing. Place the external boot EPROM/Flash on chip select CS0 within 50 mm of the address/data pins. Use a 4-layer PCB with a solid ground plane under the 144-LQFP footprint to manage EMI from the 25 MHz system clock.
Do not exceed the 25 MHz maximum clock specification. The ROMless configuration requires a valid boot memory at reset address $000000; missing boot memory causes the BDM to show a double bus fault. Ensure proper reset supervisor with at least 100 ms hold time after VCC reaches 4.75V to allow the internal PLL to stabilize before the CPU32 begins execution.
Estimated: at 25 MHz and full peripheral activity, the 144-LQFP package dissipates approximately 0.5-1W. The thermal resistance theta_JA of approximately 40 C/W on a 4-layer PCB yields a junction temperature rise of 40 C above ambient. For industrial grade (-40C to +105C), ensure ambient stays below 65C under maximum loading, or provide airflow for proper thermal margin.
Thông tin tuân thủ
RoHS compliant per DigiKey product page. AEC-Q100 qualification not applicable for non-automotive part. Conflict minerals compliance per NXP corporate policy.
