MC68332TS - 32-Bit Modular Microcontroller, CPU32 Core | NXP
料号： MC68332TS ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $38.5 | $38.50 |
| 10 | $34.2 | $342.00 |
| 100 | $28.9 | $2,890.00 |
| 500 | $24.5 | $12,250.00 |
| 1,000 | $21.75 | $21,750.00 |
MC68332TS 概述
A 32-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory, and programmable peripherals around internal buses. The MC68332 belongs to the M68300 family, which standardized on an Intermodule Bus (IMB) so peripheral modules could be reused across variants. The CPU32 in the MC68332TS is object-code compatible with the MC68020, giving designers access to the existing 68k toolchain while gaining improvements such as tighter loops, faster indexed addressing, and reduced interrupt latency. Internal modules include the System Integration Module (SIM), which handles chip-select logic, clock generation, interrupt prioritization, and bus arbitration.
Key features of the MC68332TS include the 16-bit TPU with programmable microcoded timing functions, a two-channel QSM with queued SPI and SCI/UART capability, eight independent chip-select outputs, and a 16-bit Timer Counter. The CPU32 core delivers 4-byte instruction prefetch and a hardware multiply/divide unit, while on-chip SRAM of 2KB allows time-critical code and stacks to run from internal memory for deterministic response. The PQFP-132 package exposes the full external address/data bus for external ROM, SRAM, or Flash expansion.
Typical applications include industrial automation controllers, automotive ECU prototypes, motor-control drives, robotics, and ruggedized embedded systems. The TPU makes the MC68332TS particularly attractive where complex PWM, input capture, or stepper-motor sequencing is required without burdening the CPU. System designers often use the MC68332 in systems that demand deterministic real-time behavior with an established 68k software base.
When designing with the MC68332TS, place a low-ESR decoupling capacitor within 5 mm of each VDD/VSS pair and use at least four layers to route the IMB-equivalent external address/data bus with controlled impedance. Because the part is now in NRND/EOL status, design teams should plan a migration path to a ColdFire or ARM Cortex-M equivalent early in the design cycle to avoid long-term supply risk.
This page synthesizes distributor availability, pin-compatible variants, and practical design notes for the MC68332TS that go beyond the manufacturer datasheet alone. Information here is current as of 2026-10-15 and reflects NXP/Motorola documentation, distributor listings, and NXP community guidance.
直接替换替代料： MC68332TS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MC68332TS （相同外形与封装尺寸） ——差异在于 Package.
快速对比工具——选择替代料号进行并排对比：
MC68332ACAI16
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC68332ACEH16
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$40.34 / 个
查看数据手册 →MC68332AI
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MC68376BGMFT20
✅ 直接替换📋 参考替代料（不在目录中）
MC68EN360AI
✅ 直接替换📋 参考替代料（不在目录中）
MC68332TS 最大额定值与电气特性
| Product Type | 32-bit modular microcontroller (MCU) |
| Core Architecture | CPU32 (68k family, MC68020 object-code compatible) |
| Family | M68300 |
| On-chip SRAM | 2 KB |
| External Bus | 24-bit address / 16-bit data |
| Instruction Prefetch | 4-byte queue |
| Hardware Multiply/Divide | Yes |
| Time Processing Unit (TPU) | 16-channel TPU, programmable microcode |
| Queued Serial Module (QSM) | 1 (SPI + SCI/UART) |
| Chip Selects | 8 external chip-select outputs (via SIM) |
| Timer Counter | 16-bit, 6 input capture / 9 output compare |
| 封装 | PQFP-132 (Plastic Quad Flat Pack) |
MC68332TS pqfp-132 (plastic quad flat pack) 引脚配置指南
MC68332TS（pqfp-132 (plastic quad flat pack) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： MC68332TS.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC68332TS 适用于 7 应用s: Industrial Automation Controllers, Automotive ECU Prototypes, Motor Control and Robotics, Aerospace Avionics and Flight Control, Medical Instrumentation, Ruggedized Embedded Computing, Legacy Telecom Infrastructure.
Industrial Automation Controllers
The MC68332TS fits industrial automation because its 32-bit CPU32 core, 16-channel TPU, and 8 SIM-driven chip-selects combine deterministic real-time control with the external bus bandwidth needed for large memory-mapped I/O expansions. The TPU generates up to 16 PWM channels for multi-axis motor drives while the QSM handles RS-232/RS-485 links to operator panels. At 16-25 MHz, the CPU32 executes control loops in well under 100 microseconds, and the 2 KB on-chip SRAM hosts time-critical ISRs so motion-control jitter stays bounded. The PQFP-132 footprint and 68k software base also make it a drop-in for legacy PLC, conveyor, and process-control boards.
推荐
Automotive ECU Prototypes
The MC68332TS was widely adopted in early-generation automotive ECUs because the TPU delivers programmable PWM for fuel injection, idle-speed control, and ignition timing while the CPU32 core keeps the 68k software base portable across vehicle programs. With 8 external chip-selects it can address boot Flash, calibration Flash, and SRAM simultaneously, supporting OBD-style diagnostic memory maps. Designers also like the PQFP-132 footprint for under-hood and in-cabin module PCBs. Although the part is now NRND, it remains present in test fleets and aftermarket modules where software reuse outweighs the cost of redesign.
推荐
Motor Control and Robotics
The MC68332TS is well matched to motor control and robotics because the TPU offloads stepper sequencing, quadrature decode, and PWM generation, leaving the CPU32 to focus on trajectory planning and feedback control. Each of the 16 TPU channels can run independent microcoded routines, so a single chip can drive multiple brushless DC or stepper axes. The 24-bit address bus supports external Flash for lookup tables and SRAM for real-time data logging. The PQFP-132 package is also robust against vibration, making it a common choice in robotics arms and CNC retrofit designs.
推荐
Aerospace Avionics and Flight Control
The MC68332TS is used in avionics retrofits and unmanned aerial vehicles because its deterministic 68k execution model and 16-channel TPU simplify certification of time-critical control laws. Designers map PWM outputs to actuator servos, capture input pulses from receivers, and use the QSM SCI channel for telemetry downlinks. The CPU32's 4-byte instruction prefetch keeps interrupt latency tight enough for attitude loops at 1 kHz. With the PQFP-132 footprint and ruggedized operating temperature grade, the part also survives extended thermal cycling in avionics bays.
推荐
Medical Instrumentation
The MC68332TS finds use in medical instrumentation where deterministic 32-bit performance and mature software reliability outweigh the need for newer peripherals. Patient-monitoring and laboratory-analyzer boards use the TPU for precise timing of stimulation pulses, the QSM for digital isolation links, and the 24-bit external bus to address large Flash-resident waveform libraries. The 2 KB on-chip SRAM gives low-latency access to interrupt-driven sampling code. Although newer ARM Cortex-M parts are now more common, the MC68332TS remains in field-deployed medical carts and analyzers that must remain serviceable for decades.
推荐
Ruggedized Embedded Computing
The MC68332TS is a fit for ruggedized embedded computing platforms in defense, transportation, and energy applications because the PQFP-132 package offers good thermal and mechanical stability, and the CPU32's 4-byte prefetch queue keeps interrupt response predictable. The 8 chip-selects simplify memory maps for fault-tolerant boot Flash and ECC-protected SRAM. The TPU and QSM deliver deterministic I/O for sensor arrays, while the 68k toolchain is well supported in long-lifecycle programs. Designers often pair it with isolated RS-485 transceivers and multi-channel ADCs for harsh-environment data acquisition.
推荐
Legacy Telecom Infrastructure
The MC68332TS also serves in legacy telecom line cards and base-station controllers where 68k software investments span decades. The TPU generates framing pulses and alarm tones, while the QSM provides SCI links to supervisory controllers. The 24-bit external bus supports large Flash-resident protocol stacks and SRAM buffers for packet processing. Although telecom OEMs are migrating to PowerPC and ARM, the MC68332TS continues to be deployed in spare-parts refurbishment and field-replacement programs where form-fit-function compatibility is essential.
推荐
推荐产品汇总
工程参考数据： MC68332TS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MC68332ACAI16 | MC68332ACEH16 | MC68332AI | MC68376BGMFT20 | MC68EN360AI |
|---|---|---|---|---|---|---|
| Package | PQFP-132 | PQFP-132 (same) | PQFP-132 (same) | PQFP-132 (same) | PQFP-132 (same) | PQFP-132 (same) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | CPU32 (32-bit) | 68k (QUICC engine) |
| On-chip SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB | 4 KB + Ethernet |
| TPU Channels | 16 | 16 | 16 | 16 | 16 | 0 (no TPU) |
| QSM | Yes (SPI + SCI) | Yes | Yes | Yes | Yes | Yes + Ethernet |
| Lifecycle | NRND | NRND | NRND | NRND | NRND | NRND |
关键差异点
- Dedicated 16-channel TPU offloads timing-critical tasks （对比 MC68EN360AI)
- Established CPU32 core with 68k software compatibility （对比 MC68332AI)
- Eight SIM-managed chip-select outputs for flexible memory mapping （对比 MC68332ACAI16)
设计说明
Estimated: For PQFP-132 packages with multiple VDD/VSS pins, place a 100 nF ceramic decoupling capacitor within 5 mm of every VDD/VSS pair to suppress switching transients from the address/data bus. Add a bulk 10 uF tantalum or polymer cap near the MCU inlet to handle peak current when the external bus transitions. Designers following the NXP MC68332 Technical Summary should use a ground plane on the layer directly beneath the PQFP to keep return paths short, especially for the 16-bit external data bus.
Route the external address/data bus with matched lengths to within +/-1 cm to keep skew bounded for 16-25 MHz operation. Use 4-layer PCB stack-up with continuous power and ground planes; route signals over an unbroken ground reference. Keep TPU output traces short and away from the analog front-end to avoid coupling PWM edges into sensitive feedback signals. If SIM chip-selects are used to bank-select external Flash, group them on a separate bus layer segment from the data bus.
Do not assume any pin-compatible active replacement exists for the MC68332TS - per NXP community guidance, all members of the M68300 family are NRND or EOL. Plan a migration to ColdFire (MCF532x) or MCX A series ARM Cortex-M microcontrollers early; PCB redesign will be required because no drop-in pin-compatible active part exists. For new designs, avoid specifying the MC68332TS even if the 68k software base is attractive - supply will only tighten and unit cost will rise.
Estimated: At 25 MHz CPU clock the external bus edges are ~2 ns rise time; if the address/data bus traces exceed 8 cm without series damping, ringing can corrupt reads. Add 22-33 ohm series resistors near the MCU on the most heavily loaded address lines. Always terminate CS outputs cleanly; the SIM chip-selects can be configured for wait-state insertion to match slower external memory, eliminating the need for external buffers. Use the QSM in SPI master mode with clock polarity/phase matched to the peripheral device's datasheet.
合规信息
Compliance status depends on date code and distributor inventory. Request RoHS/REACH certificates at order entry. AEC-Q100 not applicable for this industrial-grade M68300 family part.
