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NXP Semiconductors MC68332GVEH25
- Part No.:
- MC68332GVEH25
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 132-BQFP Bumpered
- Datasheet:
-
MC68332GVEH25.pdf
- Description:
- IC MCU 32BIT ROMLESS 132PQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,315
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Product details
Overview
MC68332GVEH25 from Freescale Semiconductor (formerly Motorola) is a 32-bit modular microcontroller featuring CPU32 core, System Integration Module (SIM), Time Processor Unit (TPU), Queued Serial Module (QSM), and 2-Kbyte TPURAM. It operates at up to 25 MHz system clock, supports –40°C to +105°C industrial temperature range, and integrates 16 TPU channels for real-time motion control in embedded automation systems.
For engineers reviewing the MC68332GVEH25 datasheet, MC68332GVEH25 pinout, MC68332GVEH25 application, or MC68332GVEH25 equivalent, this page delivers verified technical context, validated pin functions, confirmed timing parameters, and real-world use cases for industrial motor control, PLC I/O modules, and deterministic real-time embedded systems.
Technical Context
The MC68332GVEH25 implements a fully static CPU32 core with virtual memory support, background debugging mode, and table-lookup/interpolate instructions optimized for control algorithms. Its intermodule bus (IMB) enables standardized communication between SIM, TPU, QSM, and TPURAM modules.
The TPU operates independently of the CPU32 with 16 bidirectional channels (TPUCH[15:0]), each programmable for input capture, output compare, PWM generation, or quadrature decoding. The SIM provides PLL-based clock synthesis, 11 chip-select outputs, watchdog timer, and external bus interface with AS/R/W/DS strobes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU32 - 32-bit CISC architecture with full static operation and background debug support |
| Max Clock Frequency | 25 MHz - Confirmed operating speed for MC68332GVEH25 variant per ordering table and signal timing specs |
| TPU Channels | 16 independent channels (TPUCH[15:0]) - Each supports programmable time functions without CPU intervention |
| On-chip RAM | 2-Kbyte TPURAM - Configurable as general-purpose SRAM or TPU microcode emulation memory |
| Temperature Range | –40°C to +105°C - Industrial-grade rating validated by GV suffix and FC temperature code in ordering info |
| Package Type | 132-pin PQFP - Confirmed mechanical footprint and pin count from MC68332 132-Pin QFP pin assignment diagram |
| Bus Interface | 16-bit data / 24-bit address - External bus supports asynchronous transfers with DS/AS/R/W handshaking |
Pinout & Package
MC68332GVEH25 is housed in a 132-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, compliant with JEDEC MS-026. Thermal pad not present; body size 24.0 × 24.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR[23:0] | Address Bus | 24-bit multiplexed address output for external memory and peripheral mapping |
| DATA[15:0] | Data Bus | 16-bit bidirectional data path supporting byte/word transfers with R/W control |
| AS | Address Strobe | Indicates valid address on ADDR[23:0]; synchronizes external device setup timing |
| R/W | Read/Write Control | Active-high during write, active-low during read - defines data bus direction |
| TPUCH[15:0] | TPU Channel I/O | 16 dedicated bidirectional pins for time-critical I/O (e.g., encoder inputs, PWM outputs) |
| IRQ[7:1] | Interrupt Request Inputs | Seven priority-encoded interrupt lines feeding SIM's vectored interrupt controller |
| RESET | System Reset Input | Active-low synchronous reset initiating hardware initialization sequence |
| EXTAL / XTAL | Crystal Oscillator Interface | Connects to 32.768 kHz crystal or external clock source for PLL-based system clock generation |
Key Features
| Feature | Design Value |
|---|---|
| Modular Architecture | Standardized IMB interconnect enables predictable timing and scalable peripheral integration across MCU variants |
| Independent TPU Engine | Offloads real-time timing tasks (e.g., PWM edge alignment, quadrature decoding) from CPU32, preserving deterministic latency |
| Background Debug Mode | Enables non-intrusive firmware inspection and breakpoint execution via DSI/DSO/DSCLK serial interface |
| Programmable Chip Selects | 11 CS outputs with base address and option registers allow flexible memory-mapped peripheral partitioning |
| PLL Clock Synthesis | Generates stable 25 MHz system clock from low-frequency crystal reference, reducing EMI and board space |
Applications
| Industrial Motor Drives | Programmable Logic Controller I/O Modules |
|---|---|
|
Use Scenario: Closed-loop servo control in CNC machines requiring precise position feedback and synchronized PWM outputs. IC Role / Device Role / Timing Role: MC68332GVEH25 acts as real-time motion controller - TPU captures encoder pulses while generating phase-aligned PWM signals for three-phase inverters. Use Value: Deterministic 25 MHz TPU response ensures sub-microsecond jitter in PWM dead-time insertion and commutation timing. |
Use Scenario: High-density digital I/O expansion module with isolated inputs/outputs and fieldbus interface. IC Role / Device Role / Timing Role: MC68332GVEH25 serves as local intelligence hub - SIM manages parallel I/O ports (PE/PF/PC), QSM handles Modbus RTU over RS-485. Use Value: Integrated 16-bit external bus and 11 chip-selects enable direct connection to multiple isolation ASICs and UART transceivers without glue logic. |
| Automated Test Equipment Controllers | Power Supply Digital Controllers |
|
Use Scenario: Synchronized stimulus/response sequencing across multiple instrument channels with timestamped event logging. IC Role / Device Role / Timing Role: MC68332GVEH25 functions as deterministic sequencer - TPU timestamps analog trigger events while CPU32 logs data to external SRAM via EBI. Use Value: Hardware timestamp resolution down to one system clock cycle (40 ns @ 25 MHz) eliminates software-induced timing uncertainty. |
Use Scenario: Digital control of isolated DC-DC converters with adaptive loop compensation and fault protection. IC Role / Device Role / Timing Role: MC68332GVEH25 executes PID algorithms and monitors voltage/current sensors - TPU generates variable-frequency gate drive with cycle-by-cycle overcurrent shutdown. Use Value: TPU channel priority levels ensure immediate response to overcurrent events (<1 µs latency), independent of CPU load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit real-time microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC68332ACFV20 | 144-pin QFP, 20 MHz max clock, enhanced PPWA feature set, same TPU/QSM/SIM architecture | Higher pin count supports more external peripherals; lower clock limits reduce thermal load in fanless enclosures | Choose when additional I/O or reduced power consumption outweighs need for 25 MHz timing precision |
| MC9328MX1CZK | ARM920T core, 200 MHz, integrated LCD controller and USB OTG - no TPU, different peripheral model | Targets multimedia HMI and connectivity; lacks hardware-accelerated real-time I/O timing engine | Choose only if application requires high-throughput data processing over deterministic sub-microsecond I/O control |
Compared with MC68332ACFV20 and MC9328MX1CZK, the MC68332GVEH25 uniquely delivers guaranteed 25 MHz TPU timing determinism in a compact 132-pin package - critical for motion control where jitter directly impacts torque ripple and positioning accuracy.
Availability
MC68332GVEH25 is available at Aetrix Electronics and suitable for industrial motor drives, PLC I/O modules, automated test equipment controllers, and power supply digital controllers requiring stable component supply across extended product lifecycles.
Supply support for MC68332GVEH25 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Freescale Semiconductor (now part of NXP Semiconductors) designed high-reliability microcontrollers for automotive, industrial, and aerospace applications with emphasis on real-time performance and functional safety.
The MC68332GVEH25 belongs to the 68300 family of modular microcontrollers engineered specifically for deterministic real-time control - integrating dedicated hardware timing engines (TPU) to offload CPU32 from time-critical I/O tasks.
FAQ
What is the maximum operating frequency of the MC68332GVEH25?
The MC68332GVEH25 is rated for a maximum system clock frequency of 25 MHz, as confirmed by its ordering code suffix 'H25' and validated in the MC68332 Technical Summary. This speed applies to both CPU32 execution and TPU channel timing, enabling sub-40 ns resolution for time-critical I/O operations. The PLL-based clock synthesizer allows stable 25 MHz operation from a low-frequency crystal reference.
Does the MC68332GVEH25 include on-chip RAM, and how is it used?
Yes, the MC68332GVEH25 integrates 2-Kbyte static RAM (TPURAM) that can be configured either as general-purpose SRAM for data or program storage, or as TPU microcode emulation RAM to extend TPU instruction set capabilities. This dual-mode functionality is controlled via TPURAM register block (address $YFFA00–$YFFBFF), allowing dynamic reconfiguration during runtime without hardware changes.
How does the Time Processor Unit (TPU) in the MC68332GVEH25 operate independently of the CPU?
The TPU in the MC68332GVEH25 is a dedicated 16-channel microengine with its own instruction set, parameter RAM, and register file - executing time functions (e.g., input capture, PWM generation) without CPU32 intervention. It communicates with CPU32 only via shared memory and interrupts, ensuring deterministic response times under full CPU load. Channel priority levels prevent starvation of high-priority timing tasks.
What package type and pin count does the MC68332GVEH25 use?
The MC68332GVEH25 uses a 132-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, as documented in Figure 2 of the MC68332TS/D datasheet. This package supports all 24 address lines (ADDR[23:0]), 16 data lines (DATA[15:0]), 16 TPU channel pins (TPUCH[15:0]), and full SIM/QSM peripheral interfaces without multiplexing compromises.
Is background debugging supported on the MC68332GVEH25, and how is it implemented?
Yes, the MC68332GVEH25 supports Background Debug Mode (BDM) using three dedicated pins: BKPT/DSCLK, DSI/IFETCH, and DSO/IPIPE. This serial interface enables non-intrusive firmware download, breakpoint setting, register inspection, and real-time memory access without halting system operation - essential for validating timing-critical control loops during development.
MC68332GVEH25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 132-BQFP Bumpered
- Series:
- M683xx
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Core Processor:
- CPU32
- Core Size:
- 32-Bit Single-Core
- Speed:
- 25MHz
- Connectivity:
- EBI/EMI, SCI, SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 15
- Program Memory Size:
- -
- Program Memory Type:
- ROMless
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 4.5V ~ 5.5V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC68332GVEH25 FAQ
1.How can I place an order for MC68332GVEH25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC68332GVEH25 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC68332GVEH25 reliable?
The price and inventory of MC68332GVEH25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC68332GVEH25 is usually 5 days.
3.What payment methods are accepted for MC68332GVEH25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC68332GVEH25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC68332GVEH25?
MC68332GVEH25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC68332GVEH25 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC68332GVEH25?
For technical support, including MC68332GVEH25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC68332GVEH25 requirements.
6.How does Aetrix verify that MC68332GVEH25 is sourced from the original manufacturer or authorized distributors?
All MC68332GVEH25 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC68332GVEH25 meets industry standards.
7.What is the process for return or replacement of MC68332GVEH25?
All MC68332GVEH25 units undergo pre-shipment inspection (PSI). If there is an issue with MC68332GVEH25, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC68332GVEH25 part is unused and in its original packaging.
Return procedure for MC68332GVEH25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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