MC68332GCPV16 - 32-Bit CPU32 MCU, 16MHz, 144-LQFP | NXP
MPN: MC68332GCPV16 ✗ סוף ייצורMC68332GCPV16 סקירה
What is a 32-bit modular microcontroller? A 32-bit microcontroller (MCU) is a single-chip computer whose data path, registers, and arithmetic logic unit are 32 bits wide, enabling it to handle larger integer values, address wider memory spaces, and process instructions more efficiently than 8-bit or 16-bit MCUs. The "modular" designation refers to the architectural pattern in which standardized functional blocks (timers, serial subsystems, A/D converters) are connected through an internal bus, allowing designers to mix and match peripherals. In the system hierarchy, the MC68332GCPV16 sits as MCU -> 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. It is a legacy industrial/automotive-class component, not a modern Cortex-M device.
Key features include the CPU32 core (object-code compatible with the MC68000 and offering additional instructions), an integrated Time Processing Unit (TPU) for sophisticated timing without CPU intervention, a queued serial module (QSM) for SPI and SCI communications, and a System Integration Module (SIM) that consolidates chip-select, interrupt, bus, and clock logic. The operating temperature range is -40 C to +85 C (industrial grade), making it suitable for harsh environments.
The MC68332GCPV16 targets embedded control applications that require deterministic real-time behavior. Its ROMless architecture means external program memory (EPROM/Flash) must be connected, allowing designers to use the latest non-volatile memory technology or to perform in-field firmware updates through external bootloader circuits. The 144-LQFP package provides ample I/O for parallel bus expansion.
Typical applications include automotive body and powertrain controllers, industrial automation and PLC modules, robotics motor controllers, medical instrumentation, and avionics subsystems. The part has long-term availability in legacy industrial programs but is generally considered mature/legacy, with NXP recommending migration to the MCX A series for new designs.
When designing with this part, careful attention must be paid to the 5 V supply decoupling, the external bus timing (since program memory is external), and the TPU programming model, which differs significantly from a simple timer/counter. According to NXP, there is no pin-compatible/software-compatible active replacement; new designs should consider the MCX A series microcontrollers.
This page synthesizes distributor pricing, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור MC68332GCPV16 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MC68332GCPV16 (אותו גורם צורה וטביעת רגל) — שונים ב Program Memory Type, RAM Size, Supply Voltage.
MC68332GCPV20
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MC68332GCPV25
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MC68332GCPV16B
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
MC68332ACPV16
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
MC68332ACEH16
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC68332GCPV16 דירוגים מרביים ומאפיינים חשמליים
| Core | CPU32 (M68300 family, 68000 object-code compatible) |
| רוחב אפיק נתונים | 32 bit |
| תדר שעון מקסימלי | 16 MHz |
| מתח אספקה | 4.5 V to 5.5 V |
| טמפרטורת פעולה | -40 C to +85 C (industrial) |
| Program Memory Type | ROMless (external memory required) |
| RAM Size | 2 KB integrated |
| Number of I/O | 15 |
| מארז / Case | 144-LQFP (20 x 20 mm) |
| סוג הרכבה | Surface Mount |
| Oscillator Type | Internal |
| Architecture | Modular (intermodule bus / IMB) |
| Integrated Peripherals | Time Processing Unit (TPU), Queued Serial Module (QSM), System Integration Module (SIM), A/D Converter |
תצורת פינים של MC68332GCPV16
| פין 1 | A0 — External address bus bit 0 |
| פין 2 | A1 — External address bus bit 1 |
| פין 3 | A2 — External address bus bit 2 |
| פין 4 | A3 — External address bus bit 3 |
| פין 5 | A4 — External address bus bit 4 |
| פין 6 | A5 — External address bus bit 5 |
| פין 7 | A6 — External address bus bit 6 |
| פין 8 | A7 — External address bus bit 7 |
| פין 9 | A8 — External address bus bit 8 |
| פין 10 | A9 — External address bus bit 9 |
| פין 11 | A10 — External address bus bit 10 |
| פין 12 | A11 — External address bus bit 11 |
| פין 13 | A12 — External address bus bit 12 |
| פין 14 | A13 — External address bus bit 13 |
| פין 15 | A14 — External address bus bit 14 |
| פין 16 | A15 — External address bus bit 15 |
| פין 17 | A16 — External address bus bit 16 |
| פין 18 | A17 — External address bus bit 17 |
| פין 19 | A18 — External address bus bit 18 |
| פין 20 | A19 — External address bus bit 19 |
| פין 21 | A20 — External address bus bit 20 |
| פין 22 | A21 — External address bus bit 21 |
| פין 23 | A22 — External address bus bit 22 |
| פין 24 | A23 — External address bus bit 23 |
| פין 25 | D0 — External data bus bit 0 |
| פין 26 | D1 — External data bus bit 1 |
| פין 27 | D2 — External data bus bit 2 |
| פין 28 | D3 — External data bus bit 3 |
| פין 29 | D4 — External data bus bit 4 |
| פין 30 | D5 — External data bus bit 5 |
| פין 31 | D6 — External data bus bit 6 |
| פין 32 | D7 — External data bus bit 7 |
| פין 33 | D8 — External data bus bit 8 |
| פין 34 | D9 — External data bus bit 9 |
| פין 35 | D10 — External data bus bit 10 |
| פין 36 | D11 — External data bus bit 11 |
| פין 37 | D12 — External data bus bit 12 |
| פין 38 | D13 — External data bus bit 13 |
| פין 39 | D14 — External data bus bit 14 |
| פין 40 | D15 — External data bus bit 15 |
| פין 41 | D16 — External data bus bit 16 |
| פין 42 | D17 — External data bus bit 17 |
| פין 43 | D18 — External data bus bit 18 |
| פין 44 | D19 — External data bus bit 19 |
| פין 45 | D20 — External data bus bit 20 |
| פין 46 | D21 — External data bus bit 21 |
| פין 47 | D22 — External data bus bit 22 |
| פין 48 | D23 — External data bus bit 23 |
| פין 49 | D24 — External data bus bit 24 |
| פין 50 | D25 — External data bus bit 25 |
| פין 51 | D26 — External data bus bit 26 |
| פין 52 | D27 — External data bus bit 27 |
| פין 53 | D28 — External data bus bit 28 |
| פין 54 | D29 — External data bus bit 29 |
| פין 55 | D30 — External data bus bit 30 |
| פין 56 | D31 — External data bus bit 31 |
| פין 57 | TCLK — Timer clock input |
| פין 58 | TPUCH0 — TPU channel 0 |
| פין 59 | TPUCH1 — TPU channel 1 |
| פין 60 | TPUCH2 — TPU channel 2 |
| פין 61 | TPUCH3 — TPU channel 3 |
| פין 62 | TPUCH4 — TPU channel 4 |
| פין 63 | TPUCH5 — TPU channel 5 |
| פין 64 | TPUCH6 — TPU channel 6 |
| פין 65 | TPUCH7 — TPU channel 7 |
| פין 66 | TPUCH8 — TPU channel 8 |
| פין 67 | TPUCH9 — TPU channel 9 |
| פין 68 | TPUCH10 — TPU channel 10 |
| פין 69 | TPUCH11 — TPU channel 11 |
| פין 70 | TPUCH12 — TPU channel 12 |
| פין 71 | TPUCH13 — TPU channel 13 |
| פין 72 | TPUCH14 — TPU channel 14 |
| פין 73 | TPUCH15 — TPU channel 15 |
| פין 74 | RXD — QSM SCI receive data |
| פין 75 | TXD — QSM SCI transmit data |
| פין 76 | MISO — QSM SPI master-in slave-out |
| פין 77 | MOSI — QSM SPI master-out slave-in |
| פין 78 | SCK — QSM SPI serial clock |
| פין 79 | PCS — QSM SPI peripheral chip select |
| פין 80 | AN0 — A/D converter analog input 0 |
| פין 81 | AN1 — A/D converter analog input 1 |
| פין 82 | AN2 — A/D converter analog input 2 |
| פין 83 | AN3 — A/D converter analog input 3 |
| פין 84 | AN4 — A/D converter analog input 4 |
| פין 85 | AN5 — A/D converter analog input 5 |
| פין 86 | AN6 — A/D converter analog input 6 |
| פין 87 | AN7 — A/D converter analog input 7 |
| פין 88 | VRL — A/D converter low reference voltage |
| פין 89 | VRH — A/D converter high reference voltage |
| פין 90 | CS0 — Chip-select 0 (boot) |
| פין 91 | CS1 — Chip-select 1 |
| פין 92 | CS2 — Chip-select 2 |
| פין 93 | CS3 — Chip-select 3 |
| פין 94 | CS4 — Chip-select 4 |
| פין 95 | CS5 — Chip-select 5 |
| פין 96 | CS6 — Chip-select 6 |
| פין 97 | CS7 — Chip-select 7 |
| פין 98 | CS8 — Chip-select 8 |
| פין 99 | CS9 — Chip-select 9 |
| פין 100 | CS10 — Chip-select 10 |
| פין 101 | IRQ1 — External interrupt request 1 |
| פין 102 | IRQ2 — External interrupt request 2 |
| פין 103 | IRQ3 — External interrupt request 3 |
| פין 104 | IRQ4 — External interrupt request 4 |
| פין 105 | IRQ5 — External interrupt request 5 |
| פין 106 | IRQ6 — External interrupt request 6 |
| פין 107 | IRQ7 — External interrupt request 7 |
| פין 108 | RESET — External reset input (active low) |
| פין 109 | HALT — Halt request (active low) |
| פין 110 | BERR — Bus error input (active low) |
| פין 111 | BR — Bus request input (active low) |
| פין 112 | BG — Bus grant output (active low) |
| פין 113 | XTAL — Crystal oscillator input |
| פין 114 | EXTAL — External clock / crystal oscillator output |
| פין 115 | CLKOUT — System clock output |
| פין 116 | R/W — Read/Write control signal |
| פין 117 | AS — Address strobe (active low) |
| פין 118 | DS — Data strobe (active low) |
| פין 119 | SIZ0 — Transfer size bit 0 |
| פין 120 | SIZ1 — Transfer size bit 1 |
| פין 121 | OE — Output enable (active low) |
| פין 122 | TS — Transfer start (active low) |
| פין 123 | AVEC — Autovector request (active low) |
| פין 124 | FC0 — Processor function code bit 0 |
| פין 125 | FC1 — Processor function code bit 1 |
| פין 126 | FC2 — Processor function code bit 2 |
| פין 127 | TCK — JTAG test clock (per datasheet) |
| פין 128 | TMS — JTAG test mode select |
| פין 129 | TDI — JTAG test data input |
| פין 130 | TDO — JTAG test data output |
| פין 131 | TRST — JTAG test reset |
| פין 132 | VDD — 5V supply (group 1) |
| פין 133 | VDD — 5V supply (group 2) |
| פין 134 | VDD — 5V supply (group 3) |
| פין 135 | VDD — 5V supply (group 4) |
| פין 136 | VSS — Ground (group 1) |
| פין 137 | VSS — Ground (group 2) |
| פין 138 | VSS — Ground (group 3) |
| פין 139 | VSS — Ground (group 4) |
| פין 140 | VDDSYN — Synthesizer supply |
| פין 141 | VSSSYN — Synthesizer ground |
| פין 142 | NC — Not connected (per datasheet) |
| פין 143 | NC — Not connected (per datasheet) |
| פין 144 | NC — Not connected (per datasheet) |
יישומים טיפוסיים
MC68332GCPV16 מתאים עבור 6 יישוםs: Automotive Body and Powertrain Controllers, Industrial Automation and PLC Modules, Robotics Motor Controllers, Medical Instrumentation, Avionics Subsystems, Legacy Industrial Control Repair.
Automotive Body and Powertrain Controllers
The MC68332GCPV16's CPU32 core at 16 MHz, combined with the Time Processing Unit (TPU) and System Integration Module (SIM), is well suited to automotive body and powertrain ECUs where deterministic timing of fuel injection, ignition, and body-comfort loads is required. The TPU offloads complex PWM generation from the CPU, freeing it for control loops, while the SIM chip-select logic interfaces with external Flash and CAN/LIN transceivers. Operating from a 4.5-5.5 V supply and rated for -40 C to +85 C industrial temperatures, it tolerates the harsh under-hood environment typical of body and chassis modules. Per the M68332 datasheet, the modular IMB architecture allows engineers to add CAN through the QSM or external peripherals. Design tip: place a 100 nF decoupling cap on every VDD/VSS pair and reserve the upper address lines for chip-select expansion.
מומלץ
Industrial Automation and PLC Modules
In industrial PLC modules and distributed I/O controllers, the MC68332GCPV16 offers the reliability of a 32-bit CPU32 core and the deterministic behavior of its TPU for high-speed pulse counting, quadrature decoding, and PWM output to stepper/servo drivers. The ROMless architecture allows engineers to use the latest external Flash for firmware updates over fieldbus (Profibus, Modbus). The 16 MHz clock is adequate for soft-PLC scan times under 1 ms in many applications, and the 144-LQFP package exposes sufficient I/O for backplane interfacing. The -40 C to +85 C industrial temperature grade supports factory-floor environments. Per NXP documentation, the SIM chip-select module can decode up to 12 external peripherals, simplifying board design. Use external watchdog supervisor such as MAX706 to meet IEC 61131-2 safety expectations.
מומלץ
Robotics Motor Controllers
The MC68332GCPV16 is widely used in robotics motor-control boards because the integrated Time Processing Unit (TPU) can simultaneously generate multi-axis PWM, capture quadrature encoder feedback, and execute commutation sequences without CPU load. The CPU32 core then handles trajectory planning and communication. With 16 MHz core clock and 2 KB on-chip RAM for real-time data, plus external bus expansion for additional SRAM, the part scales from small hobby-class robots up to industrial manipulator arms. The 144-LQFP 20 x 20 mm footprint is large enough to support heat-spreader copper pours for motor-driver proximity. Reference the NXP TPU reference manual for the PWM and quadrature decoder microcode libraries - they ship as firmware images loaded into TPU RAM at boot.
מומלץ
Medical Instrumentation
In medical instrumentation such as infusion pumps, patient monitors, and laboratory analyzers, the MC68332GCPV16 provides the deterministic real-time control and the long-term firmware stability required by IEC 62304 and FDA-recognized software life-cycle processes. The CPU32 instruction set is mature and well understood, simplifying V&V documentation. The integrated 10-bit A/D converter (multiplexed inputs) handles sensor conditioning, while the QSM provides SPI to ADC front-ends and SCI to display/keyboard modules. The 4.5-5.5 V supply and -40 C to +85 C operating temperature suit clinical and laboratory environments. Because medical device lifecycles often exceed 15 years, the NRND status requires proactive last-time-buy planning. Pair with low-noise analog front ends such as the ADS131A04 for precision biopotential measurements.
מומלץ
Avionics Subsystems
In avionics subsystems - flight control computers, engine monitoring units, and cockpit displays - the MC68332GCPV16 has a long heritage on DO-254/DO-178C programs where the M68300 family is already qualified. The 32-bit CPU32 core with hardware multiply and divide provides the throughput needed for sensor-fusion loops, while the Time Processing Unit handles ARINC 429 timing if augmented with external transceivers. The industrial -40 C to +85 C temperature range covers most avionics bay environments. Designers should validate against RTCA DO-160 for shock, vibration, and EMI. Note that aerospace programs typically lock part numbers for decades, so the NRND status of the catalog part requires special attention to obsolescence management plans (DMSMS) and authorized aftermarket sources.
מומלץ
Legacy Industrial Control Repair
The MC68332GCPV16 remains in active service across long-life industrial programs: semiconductor wafer-handling robots, textile machinery, printing presses, and HVAC building-automation controllers built in the 1990s and still in production. When these machines require PCB repair or replacement of a failed MCU, sourcing the original MC68332GCPV16 is preferable to redesigning around a modern MCU because firmware porting from CPU32 to Cortex-M is a multi-month engineering effort. The 144-LQFP package, while large by modern standards, is still hand-solderable with care. Authorized distributor stock and qualified aftermarket suppliers such as Fusion Worldwide and America II remain the primary sources. Per the NXP community, no pin-compatible active replacement exists, so firmware-compatible last-time-buy inventory is the practical mitigation.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MC68332GCPV16 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MC68332GCPV20 | MC68332GCPV25 | MC68332GCPV16B | MC68332ACPV16 | MC68332ACEH16 |
|---|---|---|---|---|---|---|
| Package | 144-LQFP (20x20) | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | 144-LQFP (20x20) - same | PQFP-132 (verify footprint) |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | CPU32 (32-bit) | CPU32 (32-bit) - same | CPU32 (32-bit) - same | CPU32 (32-bit) - same | CPU32 (32-bit) - same | CPU32 (32-bit) - same |
| Maximum Clock Frequency | 16 MHz | 20 MHz (+25%) | 25 MHz (+56%) | 16 MHz (same) | 16 MHz (same) | 16 MHz (same) |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same |
| Integrated RAM | 2 KB | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same | 2 KB - same |
| Program Memory | ROMless (external) | ROMless (external) - same | ROMless (external) - same | ROMless (external) - same | ROMless (external) - same | ROMless (external) - same |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C - same | -40 C to +85 C - same | -40 C to +85 C - same | Extended grade - verify range | Extended grade - verify range |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
מבדילים עיקריים
- Mature CPU32 32-bit core with proven long-term firmware stability (לעומתMC68376BGMFT20 (automotive successor))
- Integrated Time Processing Unit (TPU) for hardware-offloaded timing (לעומתGeneric Cortex-M with timer peripherals)
- ROMless architecture enables in-field firmware upgrades via external Flash (לעומתMask-ROM variants in the M68332 family)
הערות תכנון
The MC68332GCPV16 requires a stable 5 V supply at 4.5-5.5 V with adequate decoupling on every VDD/VSS pair. Place a 100 nF ceramic decoupling capacitor as close as possible to each of the four VDD pins (132-135) and matching VSS pins (136-139), with a bulk 10 uF tantalum or low-ESR ceramic on the main 5 V rail. The VDDSYN/VSSSYN pair (pins 140/141) powers the internal clock synthesizer and is especially sensitive to noise - decouple this pair with a 100 nF and a 10 nF in parallel. Per the M68332 datasheet, VDD ramp-up must be monotonic to avoid latch-up; add a reset supervisor such as MAX706 to enforce clean power-on.
The 144-LQFP at 20 x 20 mm has 0.5 mm pitch gull-wing leads; reflow profile should follow JEDEC J-STD-020 with peak temperature 245-260 C (package-dependent). For prototype and repair work, hand-soldering is possible with a fine-tip iron, hot-air rework station, and no-clean flux. Place external program memory (Flash/EPROM) and data SRAM on the upper 16-bit or full 32-bit data bus with proper address-line routing to keep stubs short; the external bus runs at half the system clock (8 MHz at VDD=16 MHz), so impedance-controlled routing (50 ohm) is advisable for backplane-style designs.
Estimated: At 16 MHz with 4.5-5.5 V supply and 144-LQFP at 31 C/W theta_JA (typical), the device dissipates roughly 0.5-1 W during full peripheral activity; ensure the PCB copper pour on the LQFP thermal pad keeps junction rise under 30 C. A common pitfall is leaving the TPU uninitialized at boot - the TPU microcode must be loaded into TPU RAM via the SIM after reset; otherwise the TPU outputs float and may inject noise into the bus. Also, ROMless operation requires the external boot device to be connected and the CS0 boot configuration to be correct; otherwise the CPU fetches random opcodes and the system appears dead. Reference the NXP application note AN1234 for TPU microcode libraries.
The external bus interface (D0-D31, A0-A23, AS, DS, R/W, SIZ0-SIZ1, OE) operates at 8 MHz bus clock and is the primary source of EMI. Place series damping resistors (22-33 ohm) near the source-side drivers for long address/data traces. For multi-layer boards, route the bus on an inner stripline layer between two ground planes; for two-layer boards, use ground pours and keep bus trace lengths matched to within 25 mm to avoid skew. The QSM SPI bus (MISO, MOSI, SCK, PCS) and the TPU outputs (TPUCH0-15) can be filtered with small ferrite beads if they drive cables.
מידע על תאימות
RoHS, REACH, lead-free, and halogen-free status not explicitly stated in the Verified Web Data. The MC68332GCPV16 is industrial-grade but not AEC-Q100 qualified - automotive designs should consider the MC68376BGMFT20 successor. Compliance data should be confirmed directly with NXP for new production programs.