NXP Semiconductors MC68332AVEH16

Overview

MC68332AVEH16 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 16 MHz with –40°C to +105°C industrial temperature range and 132-pin PQFP package. Used in motion control systems requiring deterministic real-time I/O timing and embedded motor drive firmware.

For engineers reviewing the MC68332AVEH16 datasheet, MC68332AVEH16 pinout, MC68332AVEH16 application, or MC68332AVEH16 equivalent, this page delivers verified technical context, validated pin functions, confirmed TPU channel capabilities, and precise alternative part comparisons - all grounded in the official MC68332TS/D Rev. 2 technical summary and ordering documentation.

Technical Context

The MC68332AVEH16 implements a fully static CPU32 core with virtual memory support and background debugging mode, interfacing via a standardized 24-bit address/16-bit data intermodule bus (IMB). Its SIM provides PLL-based clock synthesis, programmable chip selects, watchdog timers, and dual-function GPIO ports (PE, PF, PC).

The dedicated TPU contains 16 independent, software-configurable channels with bidirectional TPUCH[15:0] pins, enabling precise pulse-width modulation, quadrature decoding, and time-stamped event capture without CPU intervention. The QSM integrates both SCI and QSPI submodules on shared PQS[7:0] pins for serial communication and peripheral interfacing.

Key Specifications

Pinout & Package

MC68332AVEH16 is housed in a 132-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, compliant with JEDEC MS-026. Pin functions are defined per Figure 2 of MC68332TS/D Rev. 2.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 32-bit real-time microcontroller applications.

Compared with MC68332AVEH16, MC68332GCFC16 trades thermal robustness for lower cost in benign environments, while MC68332VFC16 retains temperature rating but omits motion-optimized TPU firmware - making MC68332AVEH16 the sole choice for certified industrial motion applications requiring both extended temperature and full TPU capability.

Availability

MC68332AVEH16 is available at Aetrix Electronics and suitable for motor drive control, industrial PLC I/O modules, and automotive body controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MC68332AVEH16 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 and industrial real-time control applications.

The MC68332 product line was engineered specifically for deterministic motion control and embedded automation, integrating a dedicated TPU to offload time-critical I/O processing from the CPU32 core.

FAQ

What is the exact package type and pin count for MC68332AVEH16?

The MC68332AVEH16 uses a 132-pin Plastic Quad Flat Package (PQFP) with 0.65 mm lead pitch, as confirmed in Table 1 of the MC68332TS/D Rev. 2 datasheet under the "Std w/enhanced PPWA" row and "–40 to +105°C" temperature grade. This matches the MC68332AVFC16 ordering variant and is distinct from the 144-pin QFP variants.

Does MC68332AVEH16 include an integrated PLL clock synthesizer?

Yes, the MC68332AVEH16 includes a PLL-based clock synthesizer within its System Integration Module (SIM). As documented in Section 3.3 and Table 7, the SYNCR register ($YFFA04) controls PLL operation, and MODCLK selects between crystal (XTAL/EXTAL) or external clock sources - enabling stable 16 MHz system clock generation from a 32.768 kHz reference.

How many TPU channels does MC68332AVEH16 support, and what are their I/O capabilities?

The MC68332AVEH16 supports 16 independent TPU channels, exposed as bidirectional TPUCH[15:0] pins. Each channel can perform input capture, output compare, PWM generation, or quadrature decoding - all configurable in real time without CPU intervention, as specified in Section 5.1 and Figure 1 of MC68332TS/D Rev. 2.

Is MC68332AVEH16 pin-compatible with other MC68332 variants like MC68332CFC16?

Yes, MC68332AVEH16 shares identical 132-pin PQFP mechanical dimensions and pinout with all other 132-pin MC68332 variants including MC68332CFC16, MC68332GCFC16, and MC68332VFC16 - confirmed by Figure 2 (132-Pin QFP Pin Assignments) in MC68332TS/D Rev. 2. Electrical and functional compatibility depends on TPU type and temperature grade.

What serial communication interfaces are integrated into MC68332AVEH16?

The MC68332AVEH16 integrates the Queued Serial Module (QSM), which combines both an enhanced Serial Communication Interface (SCI) and a Queued Serial Peripheral Interface (QSPI) on shared PQS[7:0] pins. This enables full-duplex UART communication and synchronous SPI master/slave operation - as detailed in Sections 6.1–6.6 of MC68332TS/D Rev. 2.