PIC17C756A-33I/PT - 33MHz 8-bit OTP MCU, 32KB | Microchip
MPN: PIC17C756A-33I/PT ⚠ آخری بار خریداریPIC17C756A-33I/PT جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals. PIC microcontrollers use a RISC-based Harvard architecture, executing one instruction per cycle (121 ns at 33 MHz). The PIC17 family is Microchip's highest-performance 8-bit line, designed for embedded applications that need more code space, more I/O, and faster execution than the PIC16 family can provide.
Key features include 32 KB of OTP program memory (16K x 16), 902 bytes of general-purpose RAM, 50 digital I/O pins, a 10-bit analog-to-digital converter, and a single-cycle hardware multiplier. The 8.25 MIPS throughput and 58-instruction RISC core make the part easy to program while still delivering 8-bit processing power suitable for real-time control.
Architecturally, the PIC17C756A combines a wide 16-bit instruction word with an 8-bit data path, dual 16-bit pointer register banks, an 8-level hardware stack, and dedicated peripheral interfaces including USART, SSP, and CCP modules. The Harvard bus keeps program-fetch and data-access fully parallel, eliminating fetch stalls and giving deterministic interrupt latency critical for motor and power-control loops.
Typical applications include industrial automation controllers, motor control (BLDC and stepper), HVAC and appliance control, automotive body and chassis subsystems, instrumentation front-ends, and embedded systems that require a 10-bit ADC and abundant digital I/O in a single chip.
When designing with this part, verify the OTP memory limitation early in the project lifecycle: code cannot be erased or rewritten, so production programming and verification flows must be locked before committing to volume. For prototypes and field-updateable designs, consider the flash-based PIC18F6520 as a pin-compatible successor.
This page synthesizes distributor pricing, cross-reference drop-in alternatives, and engineering guidance not found in the bare manufacturer datasheet, helping you decide quickly whether PIC17C756A-33I/PT fits your application or whether a newer PIC18F alternative better matches your lifecycle needs.
کے لیے ڈراپ اِن متبادل PIC17C756A-33I/PT — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC17C756A-33I/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف ADC, Package, Data Bus Width, Operating Temperature, Program Memory Size.
PIC17C756A-33E/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C756A-16I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C756A-16E/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C752-33/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C752-33E/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C756A-33I/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core | PIC17 8-bit RISC |
| ڈیٹا بس چوڑائی | 16 bit (instruction) / 8 bit (data) |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 902 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 33 MHz |
| Instruction Cycle | 121 ns |
| Throughput | 8.25 MIPS |
| ADC | 10-bit, integrated |
| I/O Pins | 50 |
| سپلائی وولٹیج | 4.5 V to 5.5 V |
| آپریٹنگ درجہ حرارت | -40 C to +85 C (industrial) |
| پیکیج | TQFP-64 (PT), 10x10 mm |
| Hardware Multiplier | 8x8 single-cycle |
| Instruction Set | 58 single-word instructions |
| ماؤنٹنگ ٹائپ | Surface Mount |
PIC17C756A-33I/PT پن کنفیگریشن
| پن 1 | RA0/AN0 — PORTA bit 0 / ADC analog input 0 |
| پن 2 | RA1/AN1 — PORTA bit 1 / ADC analog input 1 |
| پن 3 | RA2/AN2 — PORTA bit 2 / ADC analog input 2 |
| پن 4 | RA3/AN3 — PORTA bit 3 / ADC analog input 3 |
| پن 5 | RA4/AN4 — PORTA bit 4 / ADC analog input 4 |
| پن 6 | RA5/AN5 — PORTA bit 5 / ADC analog input 5 |
| پن 7 | RA6/AN6 — PORTA bit 6 / ADC analog input 6 |
| پن 8 | RA7/AN7 — PORTA bit 7 / ADC analog input 7 |
| پن 9 | OSC1 — Crystal/clock input |
| پن 10 | OSC2 — Crystal/clock output |
| پن 11 | MCLR — Master clear (reset, active low) |
| پن 12 | VSS — Ground |
| پن 13 | RB0/INT — PORTB bit 0 / external interrupt |
| پن 14 | RB1 — PORTB bit 1 |
| پن 15 | RB2 — PORTB bit 2 |
| پن 16 | RB3 — PORTB bit 3 |
| پن 17 | RB4 — PORTB bit 4 |
| پن 18 | RB5 — PORTB bit 5 |
| پن 19 | RB6 — PORTB bit 6 |
| پن 20 | RB7 — PORTB bit 7 |
| پن 21 | RC0 — PORTC bit 0 |
| پن 22 | RC1 — PORTC bit 1 |
| پن 23 | RC2 — PORTC bit 2 |
| پن 24 | RC3 — PORTC bit 3 |
| پن 25 | RC4 — PORTC bit 4 |
| پن 26 | RC5 — PORTC bit 5 |
| پن 27 | RC6 — PORTC bit 6 |
| پن 28 | RC7 — PORTC bit 7 |
| پن 29 | RD0 — PORTD bit 0 |
| پن 30 | RD1 — PORTD bit 1 |
| پن 31 | RD2 — PORTD bit 2 |
| پن 32 | RD3 — PORTD bit 3 |
| پن 33 | RD4 — PORTD bit 4 |
| پن 34 | RD5 — PORTD bit 5 |
| پن 35 | RD6 — PORTD bit 6 |
| پن 36 | RD7 — PORTD bit 7 |
| پن 37 | RE0 — PORTE bit 0 |
| پن 38 | RE1 — PORTE bit 1 |
| پن 39 | RE2 — PORTE bit 2 |
| پن 40 | RE3 — PORTE bit 3 |
| پن 41 | RE4 — PORTE bit 4 |
| پن 42 | RE5 — PORTE bit 5 |
| پن 43 | RE6 — PORTE bit 6 |
| پن 44 | RE7 — PORTE bit 7 |
| پن 45 | RF0 — PORTF bit 0 |
| پن 46 | RF1 — PORTF bit 1 |
| پن 47 | RF2 — PORTF bit 2 |
| پن 48 | RF3 — PORTF bit 3 |
| پن 49 | RF4 — PORTF bit 4 |
| پن 50 | RF5 — PORTF bit 5 |
| پن 51 | RF6 — PORTF bit 6 |
| پن 52 | RF7 — PORTF bit 7 |
| پن 53 | RG0 — PORTG bit 0 |
| پن 54 | RG1 — PORTG bit 1 |
| پن 55 | RG2 — PORTG bit 2 |
| پن 56 | RG3 — PORTG bit 3 |
| پن 57 | RG4 — PORTG bit 4 |
| پن 58 | VSS — Ground |
| پن 59 | VDD — Positive supply 4.5V-5.5V |
| پن 60 | NC — Not connected (per datasheet) |
| پن 61 | NC — Not connected (per datasheet) |
| پن 62 | NC — Not connected (per datasheet) |
| پن 63 | NC — Not connected (per datasheet) |
| پن 64 | VDD — Positive supply 4.5V-5.5V |
عام استعمالات
PIC17C756A-33I/PT کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Automation Controllers, Motor Control (BLDC and Stepper), HVAC and Appliance Control, Instrumentation Front-Ends, Automotive Body and Chassis Subsystems, Embedded Systems with Mixed Analog/Digital I/O.
Industrial Automation Controllers
The PIC17C756A-33I/PT fits industrial automation with its 32 KB OTP, 902 B RAM, 10-bit ADC, and 50 I/O - enough to handle PLC-style logic, sensor multiplexing, and actuator control on a single chip. Its 33 MHz clock and 121 ns instruction cycle deliver deterministic loop times for real-time ladder-logic replacement, while the 50 I/O pins drive relays, optos, and HMI displays directly. Designers favor this MCU for brownfield machine retrofits where OTP-based firmware is locked at production.
تجویز کردہ
Motor Control (BLDC and Stepper)
The PIC17C756A-33I/PT is well suited for BLDC and stepper motor control because its 8.25 MIPS throughput handles field-oriented control math and its 10-bit ADC samples back-EMF and current sense signals accurately. The single-cycle hardware multiplier accelerates Park/Clarke transforms without software overhead. The 50 I/O drive PWM channels, encoder inputs, and fault lines directly, and the 121 ns interrupt latency keeps commutation timing tight across the full 0-33 MHz range.
تجویز کردہ
HVAC and Appliance Control
The PIC17C756A-33I/PT powers HVAC and appliance controllers where its 50 I/O read temperature/humidity sensors, drive triacs, and run user-interface keypads without external logic. The integrated 10-bit ADC multiplexes thermistor inputs across multiple zones, while 902 B of RAM holds setpoint tables and scheduling state. OTP memory locks the control firmware, preventing field tampering in safety-critical appliance applications like oven temperature regulation and refrigerator defrost cycles.
تجویز کردہ
Instrumentation Front-Ends
The PIC17C756A-33I/PT serves as a data acquisition front-end in instrumentation, leveraging its 10-bit ADC and USART for sensor digitization and serial reporting. With 902 B RAM and 32 KB OTP, it can buffer multi-channel scans before forwarding to a host processor via RS-232 or RS-485. The 33 MHz throughput ensures sampling rates up to ~50 ksps aggregate, suitable for lab instruments and portable data loggers where deterministic acquisition timing matters.
تجویز کردہ
Automotive Body and Chassis Subsystems
The PIC17C756A-33I/PT is used in non-safety automotive body modules such as seat controllers, mirror adjusters, and climate-zone drivers where its 50 I/O handle switch matrixes, motor bridges, and LIN/CAN sidecar transceivers. The industrial -40C to +85C grade suits under-dash environments. While not AEC-Q100 qualified, its OTP memory and wide operating range have made it a long-standing choice for body electronics production where firmware is locked at the factory.
تجویز کردہ
Embedded Systems with Mixed Analog/Digital I/O
The PIC17C756A-33I/PT is a fit for embedded designs that need both digital I/O expansion and analog digitization in one device. With 50 digital pins plus a multiplexed 10-bit ADC input set, it eliminates a separate ADC chip and reduces BOM cost in sensor-hub designs. The 33 MHz CPU executes user-interface logic, communication stacks, and sampling concurrently, while 902 B RAM keeps buffer space for serial command parsing and sensor averaging in real time.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC17C756A-33I/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC17C756A-33E/PT | PIC17C756A-16I/PT | PIC17C756A-16E/PT | PIC17C752-33/PT | PIC17C752-33E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (PT), 10x10 mm | TQFP-64 (PT), 10x10 mm - same | TQFP-64 (PT), 10x10 mm - same | TQFP-64 (PT), 10x10 mm - same | TQFP-64 (PT), 10x10 mm - same | TQFP-64 (PT), 10x10 mm - same |
| Maximum Clock | 33 MHz | 33 MHz | 16 MHz (-52%) | 16 MHz (-52%) | 33 MHz | 33 MHz |
| Instruction Cycle | 121 ns | 121 ns | 250 ns | 250 ns | 121 ns | 121 ns |
| Program Memory | 32 KB OTP | 32 KB OTP | 32 KB OTP | 32 KB OTP | 16 KB OTP (-50%) | 16 KB OTP (-50%) |
| ADC | 10-bit integrated | 10-bit integrated | 10-bit integrated | 10-bit integrated | 10-bit integrated | 10-bit integrated |
| I/O Pins | 50 | 50 | 50 | 50 | 50 | 50 |
اہم امتیازی خصوصیات
- Higher program memory than PIC17C752 family drop-ins (بمقابلہPIC17C752-33/PT)
- Faster clock than 16 MHz speed grades (بمقابلہPIC17C756A-16I/PT)
- Industrial vs extended temperature grade (بمقابلہPIC17C756A-33E/PT)
ڈیزائن نوٹس
PIC17C756A uses OTP (One-Time-Programmable) memory: code cannot be erased or rewritten. Verify programming flow and confirm OTP bit cost economics before committing to volume production. For prototypes or field-updateable designs, migrate to PIC18F6520 (flash) on the same TQFP-64 footprint.
PIC17C756A requires a stable 4.5V-5.5V supply. Place a 100 nF decoupling capacitor within 5 mm of each VDD pin (TQFP-64 has multiple VDD/VSS pairs - pins 12, 58, 59, 64). Add a bulk 10 uF tantalum or ceramic at the regulator output. Brown-out detection is built in; configure BOR via configuration bits to match your application's minimum operating voltage.
Route the 33 MHz crystal traces (OSC1/OSC2) short and symmetrically with a ground guard ring. Place the crystal within 5 mm of the OSC pins. Avoid running PWM or ADC analog traces under the crystal or near PORTA analog pins (RA0-RA7) to prevent digital switching noise coupling into ADC readings.
Estimated: at full 33 MHz and 50 I/O switching, the TQFP-64 device dissipates approximately 200-300 mW depending on I/O loading. TQFP-64 theta_JA is ~50 C/W on a standard 4-layer JEDEC test board, yielding ~15 C temperature rise above ambient. For sealed enclosures with no airflow, derate output current per I/O to keep junction below 125 C.
تعمیل کی معلومات
PIC17C756A-33I/PT is in Microchip Last Time Buy status with the older 'PT' lead-finish designation. RoHS/REACH compliance certificates were not present in the verified distributor data; request a C of C from Microchip before designing into RoHS-restricted markets. The flash-based PIC18F6520 successor is fully RoHS compliant. Not AEC-Q100 qualified.