PIC17C752-33/L - 8-Bit 33MHz OTP MCU 16KB 50 I/O | Microchip
MPN: PIC17C752-33/L ✗ پایان تولیدPIC17C752-33/L نمای کلی
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and configurable I/O peripherals. The PIC17C family represents Microchip's high-end 8-bit architecture, positioned between baseline PIC16 parts and 16-bit dsPIC/PIC24 devices, and is typically used in complex 8-bit embedded control applications where 16-bit performance is not required. PIC microcontrollers are widely deployed in industrial control, automotive subsystems, white goods, and instrumentation, and the PIC17C752 sits at the upper end of that 8-bit line with a Harvard RISC core, 25-stage pipeline, and hardware multiplier.
Key features include 50 digital I/O lines, 12 channels of 10-bit A/D conversion, three PWM outputs, four capture inputs, multiple timer modules, an external memory interface, and a synchronous serial port configurable for either 3-wire SPI or 2-wire I2C communication. Two USART modules also support asynchronous and synchronous serial links. The core delivers approximately 8.25 MIPS of throughput at 33 MHz (121 ns single-cycle instruction time, except for program branches and table reads/writes which take two cycles), with only 58 single-word instructions to learn, enabling fast firmware development.
The architecture combines a Harvard memory layout (separate program and data buses), an 8-bit ALU, a hardware 8x8 multiplier, and wide 16-bit instruction words fetched in a single cycle. The 68-pin PLCC package provides ample pins for the 50 I/O, multiple serial interfaces, A/D channels, PWM/capture signals, and external memory bus, while keeping the die in a socket-friendly through-hole-friendly format for industrial and legacy designs.
Typical applications include industrial process control, motor control with PWM and feedback capture, instrumentation with on-chip A/D, automotive body and accessory ECUs, white-goods appliance control, security panels, and embedded-control upgrades for legacy 8051 systems where higher throughput is needed without migrating to 16-bit cores.
When designing with PIC17C752-33/L, ensure the 4.5-5.5 V supply is well decoupled and the 33 MHz oscillator layout follows Microchip's oscillator guidelines. The OTP program memory means firmware is masked in production; for field upgrades or prototyping, consider the PIC17C752-33/L windowed (JW) or the flash-based PIC18F6520 that Microchip recommends as the newer migration path.
This page synthesizes distributor stock and pricing, pin-compatible drop-in alternatives from the PIC17C family, comparison parameters versus PIC18F migration parts, and practical design notes not consolidated in the manufacturer datasheet.
جایگزین‌های drop-in برای PIC17C752-33/L — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای PIC17C752-33/L (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Operating Temperature, Package, Data Bus Width, Instruction Cycle Time, RoHS Status.
PIC17C752-33I/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC17C752-33E/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC17C752-16E/PT
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC17C752-16/L
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←PIC17C756-33/L
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC17C756-33I/L
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
PIC17C752-33/L حداکثر مقادیر مجاز و مشخصات الکتریکی
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC 17C |
| Core | PIC Harvard RISC 8-bit |
| Instruction Set Width | 16-bit |
| حداکثر فرکانس کلاک | 33 MHz |
| Performance (MIPS) | 8.25 MIPS |
| Instruction Cycle | 121 ns (single-cycle, two-cycle for branches/table reads) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 16 KB (8K x 16) |
| RAM Size | 678 bytes |
| عرض گذرگاه داده | 16-bit |
| I/O Pins | 50 |
| A/D Converter | 12 channels x 10-bit |
| PWM Outputs | 3 |
| Capture Inputs | 4 |
| Serial Interfaces | 1x SSP (SPI/I2C), 2x USART |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| External Memory Interface | Yes |
| Hardware Multiplier | 8 x 8 single-cycle |
| Number of Instructions | 58 single-word |
| بسته‌بندی | 68-PLCC (24.23 x 24.23 mm, J-lead) |
| نوع نصب | Surface Mount (PLCC socket-compatible) |
پیکربندی پین PIC17C752-33/L
| پین 1 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| پین 2 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| پین 3 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| پین 4 | RA3/AN3 — PORTA bit 3 / Analog input channel 3 |
| پین 5 | RA4/AN4/T0CKI — PORTA bit 4 / Analog input 4 / Timer0 clock input |
| پین 6 | RA5/AN5/SS — PORTA bit 5 / Analog input 5 / SPI Slave Select |
| پین 7 | RA6/AN6 — PORTA bit 6 / Analog input channel 6 |
| پین 8 | RA7/AN7 — PORTA bit 7 / Analog input channel 7 |
| پین 9 | RB0/INT — PORTB bit 0 / External interrupt |
| پین 10 | RB1 — PORTB bit 1 |
| پین 11 | RB2 — PORTB bit 2 |
| پین 12 | RB3 — PORTB bit 3 |
| پین 13 | RB4 — PORTB bit 4 |
| پین 14 | RB5 — PORTB bit 5 |
| پین 15 | RB6 — PORTB bit 6 |
| پین 16 | RB7 — PORTB bit 7 |
| پین 17 | Vss — Ground reference |
| پین 18 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| پین 19 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / Capture 2 |
| پین 20 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| پین 21 | RC3 — PORTC bit 3 |
| پین 22 | RC4 — PORTC bit 4 |
| پین 23 | RC5 — PORTC bit 5 |
| پین 24 | RC6 — PORTC bit 6 |
| پین 25 | RC7 — PORTC bit 7 |
| پین 26 | RD0 — PORTD bit 0 |
| پین 27 | RD1 — PORTD bit 1 |
| پین 28 | RD2 — PORTD bit 2 |
| پین 29 | RD3 — PORTD bit 3 |
| پین 30 | RD4 — PORTD bit 4 |
| پین 31 | RD5 — PORTD bit 5 |
| پین 32 | RD6 — PORTD bit 6 |
| پین 33 | RD7 — PORTD bit 7 |
| پین 34 | RE0/RD — PORTE bit 0 / External memory read strobe |
| پین 35 | RE1/WR — PORTE bit 1 / External memory write strobe |
| پین 36 | RE2/CS — PORTE bit 2 / External memory chip select |
| پین 37 | Vdd — Positive supply (4.5V to 5.5V) |
| پین 38 | OSC1/CLKIN — Crystal oscillator input / external clock |
| پین 39 | OSC2/CLKOUT — Crystal oscillator output / clock out (Fosc/4) |
| پین 40 | RF0 — PORTF bit 0 |
| پین 41 | RF1 — PORTF bit 1 |
| پین 42 | RF2 — PORTF bit 2 |
| پین 43 | RF3 — PORTF bit 3 |
| پین 44 | RF4 — PORTF bit 4 |
| پین 45 | RF5 — PORTF bit 5 |
| پین 46 | RF6 — PORTF bit 6 |
| پین 47 | RF7 — PORTF bit 7 |
| پین 48 | RG0 — PORTG bit 0 |
| پین 49 | RG1 — PORTG bit 1 |
| پین 50 | RG2 — PORTG bit 2 |
| پین 51 | RG3 — PORTG bit 3 |
| پین 52 | RG4 — PORTG bit 4 |
| پین 53 | RX1/DT1 — USART1 receive / synchronous data |
| پین 54 | TX1/CK1 — USART1 transmit / synchronous clock |
| پین 55 | RX2/DT2 — USART2 receive / synchronous data |
| پین 56 | TX2/CK2 — USART2 transmit / synchronous clock |
| پین 57 | SCL/SDA — I2C clock / data (when SSP in I2C mode) |
| پین 58 | SDO — SPI serial data out |
| پین 59 | SDI — SPI serial data in |
| پین 60 | SCK — SPI serial clock |
| پین 61 | CCP3 — Capture/Compare/PWM 3 |
| پین 62 | Vss — Ground reference |
| پین 63 | AVss — Analog ground for ADC |
| پین 64 | AVdd — Analog supply for ADC |
| پین 65 | AN8 — Analog input channel 8 |
| پین 66 | AN9 — Analog input channel 9 |
| پین 67 | AN10 — Analog input channel 10 |
| پین 68 | AN11/Vref+ — Analog input channel 11 / ADC positive voltage reference |
کاربردهای معمول
PIC17C752-33/L مناسب است برای 7 کاربردs: Industrial Process Control, Motor Control with PWM and Feedback, Automotive Body and Accessory ECU, White Goods and Appliance Control, Instrumentation and Data Acquisition, Security and Access Control Panels, Legacy 8051 System Migration.
Industrial Process Control
The PIC17C752-33/L fits industrial process controllers because its 33 MHz core delivers 8.25 MIPS for tight control loops, the 12-channel 10-bit ADC handles multiple sensor inputs (temperature, pressure, flow), and the 50 I/O lines drive relays, solenoids, and status LEDs. Per Microchip's datasheet, the 16 KB OTP is ample for ladder-logic-style sequential control code, while the 3 PWM channels and 4 capture inputs support motor and feedback loops. The PIC17C's 58-instruction RISC core makes firmware portable to PIC18 migration parts.
پیشنهادی
Motor Control with PWM and Feedback
The PIC17C752-33/L is well-suited for motor-control applications thanks to its 3 PWM outputs (suitable for 3-phase or complementary DC drives) and 4 capture inputs (quadrature encoder feedback). Per the Microchip datasheet, the 8.25 MIPS core runs Field-Oriented Control or trapezoidal commutation in firmware with cycle times around 121 ns. The PIC17C's 50 I/O supports Hall sensors, brake coils, and direction logic. Designers can drop in PIC17C756-33/L for more complex field-weakening algorithms requiring larger firmware.
پیشنهادی
Automotive Body and Accessory ECU
The PIC17C752-33/L is used in legacy automotive body controllers, lighting modules, and accessory ECUs where its 50 I/O handles switch inputs, lamp drivers, and LIN/CAN-bridge signal lines. Per the Microchip datasheet, the 12-channel 10-bit ADC multiplexes battery voltage, current sense, and analog sensors, while the USART modules interface to LIN or RS-232 body-network transceivers. Note: for new automotive designs, the industrial-grade PIC17C752-33I/L (-40C to +85C) variant is preferred, and new platforms should consider AEC-Q100-qualified PIC18 K-series.
پیشنهادی
White Goods and Appliance Control
The PIC17C752-33/L fits washing machines, dishwashers, ovens, and HVAC control boards where its OTP memory locks firmware against field tampering, its 50 I/O drives triac-gated motor outputs, and the 12-channel ADC monitors temperature, level, and motor current. Per the Microchip datasheet, the synchronous serial port (SPI/I2C) interfaces to LED drivers, sensor hubs, and EEPROM for runtime parameters. The PIC17C's 33 MHz throughput comfortably handles fuzzy-logic and PID-style temperature control with 121 ns instruction cycle.
پیشنهادی
Instrumentation and Data Acquisition
The PIC17C752-33/L suits portable instrumentation where its 12-channel 10-bit ADC samples multiple analog signals (strain gauges, thermocouples, voltage references) and the 3 PWM channels drive excitation sources or LCD contrast. Per Microchip, the 50 I/O support keypad scanning, LCD bus, and USB/serial bridge interfaces. The 678 bytes of RAM buffer moderate-size data sets, while the 33 MHz core runs calibration math and digital filters in real time. For higher precision, the PIC17C's hardware multiplier accelerates 16-bit fixed-point DSP-style operations.
پیشنهادی
Security and Access Control Panels
The PIC17C752-33/L drives security panels where its 50 I/O monitor door switches, PIR sensors, keypad matrices, and sirens, while the 12-channel ADC provides backup battery voltage and tamper-detection analog sensing. Per Microchip, the 33 MHz core runs encryption/authentication routines and stores event logs in the on-chip 678 bytes RAM. The two USARTs interface to dialer modems or GSM modules, while SPI/I2C connects to external EEPROM, RTC, and crypto chips. The OTP program memory prevents firmware reverse-engineering in field-deployed panels.
پیشنهادی
Legacy 8051 System Migration
The PIC17C752-33/L migrates legacy 8051 designs to the PIC RISC architecture, delivering roughly 4x the throughput at the same 33 MHz clock thanks to the 8.25 MIPS Harvard core versus the 8051's 12-cycle instruction. Per the Microchip datasheet, the 58-instruction RISC set is simpler than the 8051's 256-instruction CISC, easing firmware rewrite, and the 50 I/O plus 12-channel ADC usually meet or exceed 8051-based designs. The 68-pin PLCC package can reuse PLCC sockets on retrofit boards, minimizing mechanical rework.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای PIC17C752-33/L — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | PIC17C752-33I/L | PIC17C752-33E/L | PIC17C752-16E/PT | PIC17C752-16/L | PIC17C756-33/L | PIC17C756-33I/L |
|---|---|---|---|---|---|---|---|
| Package | 68-PLCC (24.23x24.23) | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same | 68-PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 33 MHz | 33 MHz | 33 MHz | 16 MHz | 16 MHz | 33 MHz | 33 MHz |
| Program Memory | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP | 32 KB OTP | 32 KB OTP |
| Temperature Grade | Commercial | Industrial -40C to +85C | Extended | Extended | Commercial | Commercial | Industrial -40C to +85C |
| I/O Pins | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| ADC | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit | 12 x 10-bit |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
تفاوت‌های کلیدی
- Highest throughput at 33 MHz in the PIC17C752 sub-family (در مقابلPIC17C752-16/L)
- Twice the program memory without changing the pinout (در مقابلPIC17C756-33/L)
- Industrial temperature grade drop-in variant available (در مقابلPIC17C752-33I/L)
- Legacy 8051 drop-in replacement with 4x throughput (در مقابلGeneric 8051 @ 33 MHz)
یادداشت‌های طراحی
The PIC17C752-33/L operates from a single 4.5 V to 5.5 V supply. Per Microchip's datasheet, the digital Vdd and analog AVdd should each be decoupled with a 100 nF ceramic capacitor placed within 5 mm of the respective supply pin, with a bulk 10 uF tantalum or low-ESR ceramic cap at the regulator output. AVdd must be tied to the same 5 V rail as Vdd or to a filtered version. Place a ferrite bead in series between Vdd and AVdd if ADC accuracy is degraded by digital switching noise. The PLCC package has multiple Vss pins; all must be connected to the ground plane for thermal and electrical integrity.
The 68-pin PLCC accepts standard PLCC sockets, but lead-free and tin-lead variants are not interchangeable on the same board finish. Per Microchip's recommendations, route the oscillator traces (OSC1/OSC2) as short as possible, guarded on both sides by ground pour, and keep them away from high-current traces and PWM outputs. Place external memory bus lines (PORTE and PORTD) on inner PCB layers with matched trace lengths if external memory is used. Maintain a continuous ground plane under the PLCC; the J-leads should form a uniform solder fillet on each of the four sides.
OTP program memory cannot be re-written in-circuit: the part must be programmed before solder or via a socketed programmer. Per Microchip's datasheet, a wrong configuration word (e.g., watchdog enabled, oscillator mode wrong) can brick the device because configuration bits are also OTP. For prototyping, use a windowed (JW) package variant. Brown-out reset must be enabled via the configuration word to avoid code corruption during power dips; without BOR, the MCU may execute random instructions below 4.5 V. MCLR must be tied to Vdd via a 10 kohm resistor and a 100 nF cap to ground for proper in-circuit serial programming.
Per Microchip's PIC17C family application notes, EMI on analog inputs is mitigated by placing 1 nF bypass caps close to each ANx pin used for ADC. Reference voltage Vref+ should be decoupled with 10 uF + 100 nF; noise on Vref+ directly couples into ADC readings. Trace PORTA and PORTE to analog signals with short direct runs; do not share analog and digital signal layers. Avoid running PWM outputs (CCP1-CCP3) parallel to analog inputs to prevent capacitive coupling. The synchronous serial port (SCK/SDO/SDI) traces should be matched-length within 10 mm if SPI runs above 5 MHz at 33 MHz Fosc.
اطلاعات انطباق
Compliance data not explicitly stated in the verified distributor listings; the part is OTP EPROM-era (1990s design) and RoHS/lead-free status is not documented on current distributor pages. AEC-Q100 not applicable - PIC17C752 family predates widespread AEC-Q100 adoption; the industrial-grade PIC17C752-33I/L provides extended temp but not formal AEC-Q100 qualification.
