PIC17LC756AT-08I/PT - 8-Bit 8MHz 32KB OTP MCU 64-TQFP | Microchip
N.º da peça: PIC17LC756AT-08I/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.85 | $12,85 |
| 10 | $11.55 | $115,50 |
| 100 | $10.25 | $1.025,00 |
| 500 | $9.2 | $4.600,00 |
| 1.000 | $8.4 | $8.400,00 |
PIC17LC756AT-08I/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (ROM/Flash/OTP), working RAM, peripheral set, and I/O on one die. Microcontrollers sit in the broader hierarchy of embedded processors -> microcontrollers -> 8-bit microcontrollers -> OTP-based microcontrollers. The PIC17C family specifically targets higher-performance 8-bit applications with RISC Harvard architecture, multiple timer/counter modules, USART, and PWM peripherals — bridging the gap between simple 8-bit MCUs and 16-bit dsPIC devices.
Key features include an 8 MHz maximum operating frequency, 121 ns instruction cycle, internal EEPROM data memory, dual analog comparators, capture/compare/PWM modules, USART serial port, and a hardware multiplier for faster arithmetic. The wide 2.5 V to 5.5 V supply range supports both 3.3 V and 5 V designs. The device is offered in windowed CERDIP, plastic DIP, and TQFP variants for prototyping and high-volume production.
The PIC17C756A architecture uses a 16-bit wide instruction word and a separate 8-bit data path, with Harvard memory structure isolating program and data buses. This enables deterministic single-cycle execution and predictable interrupt latency for real-time control. The device includes up to 12 channels of 12-bit A/D conversion, two PWM outputs, three 16-bit timer/counters, and a USART supporting RS-232/RS-485 communication.
Typical applications include industrial motor control, HVAC actuators, smart sensor nodes, automotive body electronics (non-safety), and consumer white-goods control boards. The 50 I/O pins permit direct connection to keypads, LED matrices, and parallel LCDs. Compared to modern PIC18F devices, the PIC17C756A is preferred when legacy codebases or pin-compatible migration from the original PIC17C family is required.
Designers should verify that target peripherals and timers match the PIC17LC756A silicon revision before porting code, and add a 0.1 uF decoupling capacitor adjacent to every VDD/VSS pair. Note that Microchip has formally migrated customers to the PIC18F6520 for new designs; the PIC17LC756A remains available for legacy and maintenance programs.
This page consolidates distributor pricing, drop-in same-package alternatives within the PIC17 family, and design notes not found in the manufacturer datasheet alone, giving procurement and engineering teams a single reference point for lifecycle decisions.
Alternativas drop-in para PIC17LC756AT-08I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC17LC756AT-08I/PT (mesmo formato e footprint) — diferindo em I/O Pins, Core Architecture, Package, Data Bus Width, Instruction Cycle Time.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC17LC756A-08I/PT
✅ Drop-In✓ Em estoque
$12.3 / unidade
Ver ficha técnica →PIC17LC756AT-08I/L
✅ Drop-In✓ Em estoque
$10.95 / unidade
Ver ficha técnica →PIC17LC756A-08I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$12.3 / unidade
Ver ficha técnica →PIC17LC752T-08I/PT
✅ Drop-In✓ Em estoque
$7.45 / unidade
Ver ficha técnica →PIC17LC752T-08I/L
✅ Drop-In✓ Em estoque
$4.35 / unidade
Ver ficha técnica →PIC17C756AT-33I/L
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$12.4 / unidade
Ver ficha técnica →PIC18F6520-I/PT
✅ Drop-In✓ Em estoque
$6.1 / unidade
Ver ficha técnica →PIC17LC756AT-08I/PT Classificações máximas e características elétricas
| Product Family | PIC17C |
| Core Architecture | 8-bit RISC (Harvard) |
| Clock Speed (Max) | 8 MHz |
| Instruction Cycle | 121 ns (single cycle, 2-cycle branches) |
| MIPS | 8.25 MIPS |
| Program Memory | 32 KB (16K x 16) OTP |
| RAM | 902 bytes |
| I/O Pins | 50 |
| Tensão de alimentação | 2.5 V to 5.5 V |
| Largura do barramento de dados | 16-bit (instruction) / 8-bit (data) |
| ADC | 12-bit, up to 12 channels |
| Timers | Three 16-bit timer/counters |
| Communication | USART (RS-232/RS-485) |
| Temperatura de operação | -40C to +85C (Industrial) |
| Encapsulamento | 64-pin TQFP (10x10 mm) |
| Tipo de montagem | Surface Mount |
| Instruction Set | 58 single-word instructions |
| Analog Comparators | 2 |
| PWM Outputs | 2 |
| Nível MSL | 3 (168 hours) |
Configuração de pinos do PIC17LC756AT-08I/PT
| Pino 1 | MCLR/VPP — Master Clear (reset) input or programming voltage |
| Pino 2 | OSC1 — Crystal oscillator input |
| Pino 3 | OSC2 — Crystal oscillator output |
| Pino 4 | RA0 — Port A bit 0 (digital I/O or analog input AN0) |
| Pino 5 | RA1 — Port A bit 1 (digital I/O or analog input AN1) |
| Pino 6 | RA2 — Port A bit 2 (digital I/O or analog input AN2) |
| Pino 7 | RA3 — Port A bit 3 (digital I/O or analog input AN3) |
| Pino 8 | RA4 — Port A bit 4 (digital I/O or analog input AN4) |
| Pino 9 | RA5 — Port A bit 5 (digital I/O or analog input AN5) |
| Pino 10 | RA6 — Port A bit 6 (digital I/O or analog input AN6) |
| Pino 11 | RA7 — Port A bit 7 (digital I/O or analog input AN7) |
| Pino 12 | VSS — Ground reference |
| Pino 13 | RB0 — Port B bit 0 (digital I/O, external interrupt) |
| Pino 14 | RB1 — Port B bit 1 (digital I/O) |
| Pino 15 | RB2 — Port B bit 2 (digital I/O) |
| Pino 16 | RB3 — Port B bit 3 (digital I/O) |
| Pino 17 | RB4 — Port B bit 4 (digital I/O) |
| Pino 18 | RB5 — Port B bit 5 (digital I/O) |
| Pino 19 | RB6 — Port B bit 6 (digital I/O, ICD clock) |
| Pino 20 | RB7 — Port B bit 7 (digital I/O, ICD data) |
| Pino 21 | VDD — Positive supply (2.5 V to 5.5 V) |
| Pino 22 | VSS — Ground reference |
| Pino 23 | RC0 — Port C bit 0 (digital I/O or PWM output) |
| Pino 24 | RC1 — Port C bit 1 (digital I/O or PWM output) |
| Pino 25 | RC2 — Port C bit 2 (digital I/O) |
| Pino 26 | RC3 — Port C bit 3 (digital I/O) |
| Pino 27 | RC4 — Port C bit 4 (digital I/O) |
| Pino 28 | RC5 — Port C bit 5 (digital I/O) |
| Pino 29 | RC6 — Port C bit 6 (digital I/O, USART TX) |
| Pino 30 | RC7 — Port C bit 7 (digital I/O, USART RX) |
| Pino 31 | VSS — Ground reference |
| Pino 32 | RD0 — Port D bit 0 (digital I/O) |
| Pino 33 | RD1 — Port D bit 1 (digital I/O) |
| Pino 34 | RD2 — Port D bit 2 (digital I/O) |
| Pino 35 | RD3 — Port D bit 3 (digital I/O) |
| Pino 36 | RD4 — Port D bit 4 (digital I/O) |
| Pino 37 | RD5 — Port D bit 5 (digital I/O) |
| Pino 38 | RD6 — Port D bit 6 (digital I/O) |
| Pino 39 | RD7 — Port D bit 7 (digital I/O) |
| Pino 40 | VDD — Positive supply (2.5 V to 5.5 V) |
| Pino 41 | VSS — Ground reference |
| Pino 42 | RE0 — Port E bit 0 (digital I/O) |
| Pino 43 | RE1 — Port E bit 1 (digital I/O) |
| Pino 44 | RE2 — Port E bit 2 (digital I/O) |
| Pino 45 | RE3 — Port E bit 3 (digital I/O) |
| Pino 46 | RE4 — Port E bit 4 (digital I/O) |
| Pino 47 | RE5 — Port E bit 5 (digital I/O) |
| Pino 48 | RE6 — Port E bit 6 (digital I/O) |
| Pino 49 | RE7 — Port E bit 7 (digital I/O) |
| Pino 50 | VSS — Ground reference |
| Pino 51 | NC — Not connected (per datasheet) |
| Pino 52 | NC — Not connected (per datasheet) |
| Pino 53 | NC — Not connected (per datasheet) |
| Pino 54 | NC — Not connected (per datasheet) |
| Pino 55 | NC — Not connected (per datasheet) |
| Pino 56 | NC — Not connected (per datasheet) |
| Pino 57 | NC — Not connected (per datasheet) |
| Pino 58 | NC — Not connected (per datasheet) |
| Pino 59 | NC — Not connected (per datasheet) |
| Pino 60 | NC — Not connected (per datasheet) |
| Pino 61 | NC — Not connected (per datasheet) |
| Pino 62 | NC — Not connected (per datasheet) |
| Pino 63 | NC — Not connected (per datasheet) |
| Pino 64 | VSS — Ground reference |
Aplicações típicas
PIC17LC756AT-08I/PT é adequado para 6 aplicaçãos: Industrial Motor Control, HVAC Actuator and Damper Control, Smart Sensor Hub with Analog Front-End, Automotive Body Electronics (Non-Safety), Consumer Appliance Control Boards, Legacy Industrial Controller Replacement.
Industrial Motor Control
The PIC17LC756AT-08I/PT fits industrial motor-control designs through its dual 16-bit PWM outputs, three 16-bit timer/counters, and 12-bit ADC with up to 12 channels — sufficient for closed-loop BLDC or stepper control. At 8.25 MIPS, the firmware can execute a 10 kHz control loop with comfortable margin for sensor sampling and PID computation. The 50 I/O pins drive gate drivers, encoder inputs, and fault signals directly without external glue logic, while the 2.5 V to 5.5 V supply range simplifies integration with both 3.3 V and 5 V gate drivers on the same board.
Recomendado
HVAC Actuator and Damper Control
For HVAC damper and valve actuators, the PIC17LC756AT-08I/PT provides the 12-bit ADC precision needed for temperature and pressure sensing, while the USART enables communication with a central building controller via RS-485. The 902 bytes of RAM accommodates control loops and protocol stacks, and 50 I/O lines drive relays, triac interfaces, and character LCD displays. Industrial -40C to +85C temperature rating ensures reliable operation in unconditioned plant rooms, and the OTP program memory protects firmware IP after deployment.
Recomendado
Smart Sensor Hub with Analog Front-End
The PIC17LC756AT-08I/PT's 12-channel 12-bit ADC, dual analog comparators, and 50 I/O pins make it suitable for multi-sensor aggregation hubs in industrial monitoring. Engineers can sample thermocouples, RTDs, and 4-20 mA loops directly, then process signals in firmware at 8.25 MIPS. The wide 2.5 V to 5.5 V supply range supports both loop-powered (3.3 V) and line-powered (5 V) topologies. USART enables forwarding data to a central PLC or gateway over RS-232/RS-485.
Recomendado
Automotive Body Electronics (Non-Safety)
For non-safety body electronics such as seat controllers, mirror adjusters, and interior lighting, the PIC17LC756AT-08I/PT delivers 50 I/O pins, PWM outputs, and ADC channels at industrial temperature grade. Although not AEC-Q100 qualified, the device has been widely used in 12 V body modules with external load-dump protection. The OTP memory locks firmware against field tampering, and the 8 MHz clock supports LIN-style software UART for low-cost body networking. For new automotive designs, consider AEC-Q100-qualified PIC18F alternatives.
Recomendado
Consumer Appliance Control Boards
White-goods controllers in washing machines, dishwashers, and microwave ovens benefit from the PIC17LC756AT-08I/PT's 50 I/O for keypad scanning, seven-segment or character-LCD display driving, and triac-based load switching. The 32 KB OTP program memory accommodates state-machine firmware and lookup tables, while the USART interfaces with inverter boards or sensor modules. Industrial temperature rating suits under-cabinet appliance environments where ambient can reach 70C during operation. OTP locking protects manufacturer firmware IP.
Recomendado
Legacy Industrial Controller Replacement
For maintenance and lifecycle extension of legacy PIC17C756A-based equipment, the PIC17LC756AT-08I/PT provides an identical silicon replacement with extended voltage range (down to 2.5 V) and modern lead-free TQFP packaging. Industrial -40C to +85C operation matches the deployed fleet, and 50 I/O maintain backward compatibility with existing field wiring and I/O expansion boards. Engineers can drop the LC variant into the original PCB footprint and re-program from the same HEX file, minimizing re-certification cost.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC17LC756AT-08I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC17LC756A-08I/PT | PIC17LC752T-08I/PT | PIC18F6520-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP - same | 64-pin TQFP - same | 64-pin TQFP - same |
| Core / Architecture | 8-bit RISC (PIC17C) | 8-bit RISC (PIC17C) - same | 8-bit RISC (PIC17C) - same | 8-bit RISC (PIC18F enhanced) - different family |
| Program Memory | 32 KB (16K x 16) OTP | 32 KB OTP - same | 16 KB OTP - 50% | 32 KB Flash - reprogrammable |
| Maximum Clock | 8 MHz | 8 MHz - same | 8 MHz - same | 40 MHz - 5x faster |
| RAM | 902 bytes | 902 bytes - same | 678 bytes - 25% | 2048 bytes - 2.3x |
| I/O Pins | 50 | 50 - same | 50 - same | 52 - same |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 2.0 V to 5.5 V - wider |
| Lifecycle Status | NRND | NRND | NRND | Active |
Principais diferenciais
- Wide 2.5 V to 5.5 V supply range (LC variant) vs 5 V only on standard PIC17C756A (vs PIC17C756A-08I/PT (without 'L'))
- Microchip-recommended migration to Flash-based successor with active lifecycle (vs PIC18F6520-I/PT)
- 50 I/O pins with 12-channel 12-bit ADC on-chip vs external ADC requirements on simpler PIC16 family (vs PIC16LF877A-I/PT)
Notas de projeto
Place a 0.1 uF decoupling capacitor within 5 mm of every VDD/VSS pair on the 64-pin TQFP, and add a bulk 10 uF tantalum or ceramic capacitor adjacent to the highest-current VDD pin (typically pin 21). The PIC17LC756AT-08I/PT has multiple VDD/VSS pins (pins 21, 40 VDD; pins 12, 22, 31, 41, 50, 64 VSS) and all must be connected for proper operation. Decoupling prevents logic noise from coupling into the analog supply and reduces ADC sampling jitter. Brown-out reset (BOR) is enabled by configuration fuse and should be retained for industrial designs.
Route the 8 MHz crystal traces (OSC1/OSC2, pins 2-3) symmetrically and as short as possible, with ground guarding on both sides to minimize EMI pickup. The 64-pin TQFP (10x10 mm) has a 0.5 mm pitch, requiring fine-pick-and-place and proper PCB pad design per IPC-7351. Add a guard ring around the analog input pins (RA0-RA7) to isolate them from digital switching noise, since the 12-bit ADC can resolve 1 mV at full scale. For OTP programming, expose the MCLR/VPP pin (pin 1) to a header for in-circuit programming.
Do not assume the PIC17LC756AT-08I/PT is a drop-in for the PIC18F6520 - the peripheral register map, interrupt vector table, and instruction set differ between PIC17 and PIC18 families, so firmware must be ported even though the pinout is compatible. Configuration bits must be set for oscillator mode (HS for >4 MHz crystal), watchdog timer enable, code protection, and brown-out reset voltage. Using the wrong oscillator mode is the most common reason for non-starting boards; verify with a scope on OSC2 before debugging code.
Informações de conformidade
RoHS and REACH status not confirmed in provided data. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified - this part is not recommended for safety-critical automotive applications.
