PIC17C752-33/PT - 8-bit 33MHz 16KB OTP MCU 64-TQFP | Microchip
MPN: PIC17C752-33/PT ✗ انتهى عمره الإنتاجيPIC17C752-33/PT نظرة عامة
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, on-chip RAM, and a set of peripherals such as timers, communication ports, and ADCs. Microcontrollers sit within the broader hierarchy of microprocessors -> microcontrollers -> 8-bit microcontrollers -> PIC architecture, serving as the lowest-level programmable element that reads sensors, drives actuators, and orchestrates real-time control loops without requiring an external operating system. PIC devices are RISC-based, Harvard-architecture MCUs well known for deterministic single-cycle instruction execution and a small, easy-to-learn instruction set.
Key features of the PIC17C752-33/PT include 8.25 MIPS peak throughput, a single-cycle 8x8 hardware multiplier, dual-capture/compare/PWM modules, a USART, an MSSP (SPI/I2C) peripheral, 12 channels of 10-bit ADC, and an 8-level deep hardware stack. The 17C-series instruction set extends the baseline PIC16C5X/PIC12CXXX/PIC16CXX instruction set with additional addressing modes and a hardware multiplier, while remaining upwards source-compatible so existing code can be re-targeted with minimal porting.
Architecturally, the PIC17C752 uses a 16-bit-wide instruction word fetched from OTP EPROM each cycle, an 8-bit data bus to RAM, and a 10-bit ADC front end. The 33 MHz oscillator combined with the 4:1 internal clock divider produces the 121 ns instruction cycle quoted in the datasheet, giving roughly 8 MIPS sustained throughput with deterministic interrupt latency ideal for motor control and instrumentation.
Typical applications include industrial control panels, motor drive front-ends, instrumentation front-ends with on-chip ADC, smart sensor hubs, and embedded control boards where OTP programmability is acceptable for low- to mid-volume production. The wide I/O count (50 pins) and on-chip ADC also make it suitable for HVAC controllers and appliance subsystems.
When designing with this part, ensure the oscillator loop is laid out per Microchip's recommended guidelines to avoid noise coupling into the analog AVdd/AVss pins, and provide adequate bulk decoupling near the IC. Note that the PIC17C752 family has been superseded by the PIC18F family; for new designs the manufacturer recommends migrating to PIC18F6520.
This page consolidates current distributor pricing for the PIC17C752-33/PT, drop-in OTP and Flash alternatives in the same TQFP-64 footprint, application guidance, and pin-level design notes that go beyond the bare datasheet specification list.
بدائل مباشرة لـ PIC17C752-33/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC17C752-33/PT (نفس عامل الشكل والبصمة) — يختلف في Package, Data Bus Width, Program Memory Type, Operating Temperature, Core Architecture.
PIC17C752-33I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC17C752-16/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC17C756A-33/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC17C752-33/PT الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Instruction Set Width | 16-bit (8-bit data bus) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 16 KB (8K x 16 words) |
| RAM | 678 bytes |
| أقصى تردد للساعة | 33 MHz |
| Instruction Cycle Time | 121 ns (single cycle) |
| Throughput | 8.25 MIPS |
| جهد التغذية التشغيلي | 4.5 V to 5.5 V |
| I/O Pins | 50 |
| ADC | 10-bit, 12 channels |
| Hardware Multiplier | 8 x 8 single-cycle |
| Stack Depth | 8 levels (hardware) |
| العلبة | 64-pin TQFP (10 x 10 mm) |
| درجة حرارة التشغيل | 0 C to +70 C (commercial) |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
| Number of Instructions | 58 single-word |
| Peripherals | USART, MSSP (SPI/I2C), CCP, 10-bit ADC |
| Lead-Free / Pb-Free | Yes |
تكوين أطراف PIC17C752-33/PT
| دبوس 1 | OSC1 — Oscillator input / external clock |
| دبوس 2 | OSC2 — Oscillator output |
| دبوس 3 | MCLR — Master clear (reset) input |
| دبوس 4 | RA0/AN0 — Digital I/O / analog input channel 0 |
| دبوس 5 | RA1/AN1 — Digital I/O / analog input channel 1 |
| دبوس 6 | RA2/AN2 — Digital I/O / analog input channel 2 |
| دبوس 7 | RA3/AN3 — Digital I/O / analog input channel 3 |
| دبوس 8 | RA4/AN4 — Digital I/O / analog input channel 4 |
| دبوس 9 | RA5/AN5 — Digital I/O / analog input channel 5 |
| دبوس 10 | RA6 — Digital I/O |
| دبوس 11 | RA7 — Digital I/O |
| دبوس 12 | Vss — Digital ground |
| دبوس 13 | RB0/INT — Digital I/O / external interrupt |
| دبوس 14 | RB1 — Digital I/O |
| دبوس 15 | RB2 — Digital I/O |
| دبوس 16 | RB3 — Digital I/O |
| دبوس 17 | RB4 — Digital I/O |
| دبوس 18 | RB5 — Digital I/O |
| دبوس 19 | RB6 — Digital I/O |
| دبوس 20 | RB7 — Digital I/O |
| دبوس 21 | Vdd — Digital supply (4.5V to 5.5V) |
| دبوس 22 | RC0 — Digital I/O |
| دبوس 23 | RC1 — Digital I/O |
| دبوس 24 | RC2 — Digital I/O |
| دبوس 25 | RC3 — Digital I/O |
| دبوس 26 | RC4 — Digital I/O |
| دبوس 27 | RC5 — Digital I/O |
| دبوس 28 | RC6 — Digital I/O |
| دبوس 29 | RC7 — Digital I/O |
| دبوس 30 | Vss — Digital ground |
| دبوس 31 | RD0 — Digital I/O |
| دبوس 32 | RD1 — Digital I/O |
| دبوس 33 | RD2 — Digital I/O |
| دبوس 34 | RD3 — Digital I/O |
| دبوس 35 | RD4 — Digital I/O |
| دبوس 36 | RD5 — Digital I/O |
| دبوس 37 | RD6 — Digital I/O |
| دبوس 38 | RD7 — Digital I/O |
| دبوس 39 | Vdd — Digital supply |
| دبوس 40 | RE0 — Digital I/O |
| دبوس 41 | RE1 — Digital I/O |
| دبوس 42 | RE2 — Digital I/O |
| دبوس 43 | RE3 — Digital I/O |
| دبوس 44 | RE4 — Digital I/O |
| دبوس 45 | RE5 — Digital I/O |
| دبوس 46 | RE6 — Digital I/O |
| دبوس 47 | RE7 — Digital I/O |
| دبوس 48 | Vss — Digital ground |
| دبوس 49 | RF0/AN6 — Digital I/O / analog input channel 6 |
| دبوس 50 | RF1/AN7 — Digital I/O / analog input channel 7 |
| دبوس 51 | RF2/AN8 — Digital I/O / analog input channel 8 |
| دبوس 52 | RF3/AN9 — Digital I/O / analog input channel 9 |
| دبوس 53 | RF4/AN10 — Digital I/O / analog input channel 10 |
| دبوس 54 | RF5/AN11 — Digital I/O / analog input channel 11 |
| دبوس 55 | RF6 — Digital I/O |
| دبوس 56 | RF7 — Digital I/O |
| دبوس 57 | AVdd — Analog supply |
| دبوس 58 | AVss — Analog ground |
| دبوس 59 | RG0 — Digital I/O |
| دبوس 60 | RG1 — Digital I/O |
| دبوس 61 | RG2 — Digital I/O |
| دبوس 62 | RG3 — Digital I/O |
| دبوس 63 | NC — Not connected (per datasheet) |
| دبوس 64 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC17C752-33/PT مناسب لـ 6 التطبيقs: Industrial Control Panels, BLDC / Stepper Motor Drive, Smart Sensor Hubs, HVAC and Appliance Controllers, Instrumentation Front-Ends, Embedded Control Boards (Legacy / MRO).
Industrial Control Panels
The PIC17C752-33/PT fits industrial control panels because its 50 I/O pins can directly drive LED indicators, keypads, and relay coils, while its 12-channel 10-bit ADC reads analog sensors such as temperature, pressure, and current. The 8.25 MIPS throughput comfortably executes scan loops that poll multiple inputs every few milliseconds while servicing USART or RS-485 traffic to a supervisory PLC. With OTP memory it suits mid-volume production where the firmware is finalized and per-unit programming cost is acceptable.
موصى به
BLDC / Stepper Motor Drive
In low- to mid-power BLDC or stepper motor drives, the PIC17C752-33/PT's deterministic 121 ns instruction cycle and dual CCP/PWM modules generate precise switching waveforms for an H-bridge, while the 10-bit ADC samples back-EMF or current-sense signals for commutation control. The 50 I/O lines handle Hall-sensor inputs, enable lines, fault inputs, and tachometer feedback. The OTP memory suits volume appliance or HVAC motor applications where the firmware is locked and price-sensitive.
موصى به
Smart Sensor Hubs
The PIC17C752-33/PT acts as a sensor hub aggregating data from SPI/I2C digital sensors and its own 10-bit ADC channels, then forwarding aggregated readings over USART or RS-485 to a host. Its 678-byte RAM supports modest local buffering and 16 KB of OTP holds the sensor fusion code, calibration tables, and command parser. The PIC RISC core's deterministic latency ensures predictable sampling intervals, which is critical for vibration, flow, and pressure transducers in process control.
موصى به
HVAC and Appliance Controllers
White-goods and HVAC subsystem controllers benefit from the PIC17C752-33/PT's wide operating voltage (4.5 V to 5.5 V), 50 I/O count for keypad, display, and triac interfaces, plus its on-chip 10-bit ADC for thermistor and pressure transducer inputs. The 8.25 MIPS performance handles proportional control loops, user-interface debouncing, and serial diagnostics concurrently. OTP memory is ideal for high-volume appliance designs where the firmware is stable and unit cost dominates BOM decisions.
موصى به
Instrumentation Front-Ends
Bench and field instruments use the PIC17C752-33/PT as a low-cost front-end that scans front-panel buttons, drives an LCD or character display, and converts analog signals with the on-chip 10-bit ADC before forwarding readings over USART. The 16 KB OTP holds calibration tables and menu logic, while 678 bytes of RAM is sufficient for measurement buffers and display line caches. The compact 64-pin TQFP package simplifies layout in hand-held meter housings where PCB area is constrained.
موصى به
Embedded Control Boards (Legacy / MRO)
Maintenance, repair, and operations (MRO) applications supporting installed equipment rely on the PIC17C752-33/PT as an authentic source for legacy boards that cannot be re-engineered without re-qualification. Its 33 MHz core, 50 I/O, and on-chip ADC reproduce the original control behavior exactly, ensuring backwards compatibility with downstream firmware interfaces. Because the part is end-of-life, distributors stock the last-time-buy quantities for spares until the field fleet is retired.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC17C752-33/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC17C752-33I/PT | PIC17C752-16/PT | PIC17C756A-33/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Maximum Clock Frequency | 33 MHz | 33 MHz | 16 MHz | 33 MHz |
| Program Memory | 16 KB OTP | 16 KB OTP | 16 KB OTP | 32 KB OTP |
| RAM | 678 bytes | 678 bytes | 678 bytes | 902 bytes |
| ADC | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels |
| Operating Temperature | 0 C to +70 C | -40 C to +85 C (industrial) | 0 C to +70 C | 0 C to +70 C |
| I/O Pins | 50 | 50 | 50 | 50 |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
أبرز الفروقات
- Industrial temperature grade drop-in option (مقابلPIC17C752-16/PT)
- Double the program memory at the same clock (مقابلPIC17C752-16/PT)
- Highest throughput in the family (مقابلPIC17C752-16/PT)
ملاحظات التصميم
Decouple Vdd/Vss pairs as close to the PIC17C752-33/PT as possible with a 0.1 uF ceramic plus a 10 uF tantalum or aluminum bulk capacitor; AVdd/AVss should have its own low-pass RC filter (typically 10 ohm + 10 uF) to keep switching noise out of the ADC reference. The 50 I/O lines can source/sink up to 20-25 mA each but the total chip dissipation budget must be observed - keep total I/O current below 200 mA to stay within the TQFP-64 thermal envelope.
Keep the OSC1/OSC2 traces short and guarded with a ground pour; route the analog AVdd/AVss pins away from high-current switching nodes such as motor drivers or triac circuits. Place the MCLR pull-up (typically 10 kohm) close to the pin and add a 100 nF cap to ground if long reset traces are unavoidable. The 64-pin TQFP (10x10 mm) has a 0.5 mm pitch and an exposed thermal pad on some variants - check the package drawing before committing the footprint.
Do not assume the PIC17C752-33/PT is in production - Microchip has marked the family obsolete and recommends the PIC18F6520. Design teams continuing to use this part should plan for last-time-buy, qualify an alternate immediately, and avoid it for new designs. Also note that '33' in the part number denotes maximum clock (33 MHz), not instruction cycle; the instruction cycle is 121 ns due to the 4:1 internal divider. Programming OTP requires a one-time window before the part ships.
معلومات الامتثال
RoHS compliance and lead-free status confirmed by Microchip product page and TrustCompo listing. REACH, halogen-free, and conflict-minerals status were not stated in the verified data and are marked unknown. The part is not AEC-Q100 qualified - Microchip does not market the PIC17C7xx family for automotive safety applications.
