PIC17C756AT-16I/PT - 8-bit OTP MCU, 32KB EPROM, 64-TQFP | Microchip
N.º da peça: PIC17C756AT-16I/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $19.94 | $19,94 |
| 10 | $17.5 | $175,00 |
| 100 | $14.75 | $1.475,00 |
| 500 | $12.1 | $6.050,00 |
| 1.000 | $10.25 | $10.250,00 |
PIC17C756AT-16I/PT Visão geral
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, data RAM, and integrated peripherals designed for embedded control. The PIC17C family sits at the upper end of Microchip's 8-bit portfolio, targeting applications that demand higher throughput than the PIC16 family. Within the broader taxonomy, this part is an 8-bit MCU -> microcontroller -> embedded processor -> semiconductor, and uses Harvard architecture with separate program and data buses for deterministic instruction fetch.
Key features include a 16 MHz maximum clock input (33 MHz on later revisions), 58 single-word instructions for compact code, an 8 x 8 hardware multiplier executing in one instruction cycle, dual-capture/compare/PWM modules, two USART ports, an I2C/SPI peripheral, and a 12-channel 10-bit analog-to-digital converter. The Brown-out Reset and Watchdog Timer enhance reliability in industrial and automotive-grade embedded systems where supply transients and code lockups must be guarded against.
The PIC17C756AT-16I/PT uses Microchip's PIC17C RISC architecture with a 16-bit instruction word despite the 8-bit data path, balancing code density with arithmetic performance. The 'T' suffix denotes Tape & Reel packaging, the '-16' rating indicates the 16 MHz maximum clock, and the 'I' temperature grade supports -40C to +85C industrial environments. The 'PT' suffix indicates the 64-pin TQFP (10x10 mm) package.
Typical applications include industrial control panels, motor drive front-end controllers, instrumentation front-ends using the on-chip 10-bit ADC, white-goods and HVAC control boards, and embedded communication bridges where the dual USART and I2C/SPI peripherals reduce external component count. Designers transitioning from PIC16 to higher-performance 8-bit applications also use this device as a stepping stone before migrating to PIC18 or dsPIC architectures.
When designing with this part, note that the OTP memory cannot be re-programmed in-circuit; for development, use the windowed PIC17C756A UV-erasable variant or migrate to the flash-based PIC18F6520 recommended by Microchip as the modern replacement. Always keep VDD between 4.5V and 5.5V and respect the 16 MHz clock input limit to avoid timing violations.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single distributor or manufacturer page.
Alternativas drop-in para PIC17C756AT-16I/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 PIC17C756AT-16I/PT (mesmo formato e footprint) — diferindo em Package, Program Memory Type, ADC, Core Architecture, Data Bus Width.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC17C756AT-16/PT
✅ Drop-In✓ Em estoque
$11.95 / unidade
Ver ficha técnica →PIC17C756A-16I/PT
✅ Drop-In✓ Em estoque
$11.2 / unidade
Ver ficha técnica →PIC17C756A-33E/PT
✅ Drop-In✓ Em estoque
$7.55 / unidade
Ver ficha técnica →PIC17C756A-16E/PT
✅ Drop-In✓ Em estoque
$16.8 / unidade
Ver ficha técnica →PIC17C756AT-16I/PT Classificações máximas e características elétricas
| Core Architecture | PIC17C 8-bit RISC |
| Frequência máxima de clock | 16 MHz |
| Instruction Cycle Time | 121 ns (single cycle) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 32 KB (16K x 16) |
| Data RAM | 902 bytes |
| Data EEPROM | Not present (EPROM-based MCU) |
| Largura do barramento de dados | 8 bit |
| Instruction Word Width | 16 bit |
| I/O Pins | 50 |
| ADC | 10-bit, 12 channels |
| Supply Voltage (VDD) | 4.5 V to 5.5 V |
| Temperatura de operação | -40 C to +85 C (industrial, 'I' grade) |
| Encapsulamento | 64-pin TQFP (PT) |
| Tipo de montagem | Surface Mount |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, 2x USART, I2C/SPI |
| Multiplier | 8 x 8 hardware, single-cycle |
Configuração de pinos do PIC17C756AT-16I/PT
| Pino 1 | RC0 — I/O port C bit 0 |
| Pino 2 | RC1 — I/O port C bit 1 |
| Pino 3 | RC2 — I/O port C bit 2 |
| Pino 4 | RC3 — I/O port C bit 3 |
| Pino 5 | RC4 — I/O port C bit 4 |
| Pino 6 | RC5 — I/O port C bit 5 |
| Pino 7 | RC6 — I/O port C bit 6 |
| Pino 8 | RC7 — I/O port C bit 7 |
| Pino 9 | VSS — Ground |
| Pino 10 | VDD — Positive supply (4.5V-5.5V) |
| Pino 11 | RA0/AN0 — I/O port A bit 0 / analog input 0 |
| Pino 12 | RA1/AN1 — I/O port A bit 1 / analog input 1 |
| Pino 13 | RA2/AN2 — I/O port A bit 2 / analog input 2 |
| Pino 14 | RA3/AN3 — I/O port A bit 3 / analog input 3 |
| Pino 15 | RA4/AN4 — I/O port A bit 4 / analog input 4 |
| Pino 16 | RA5/AN5 — I/O port A bit 5 / analog input 5 |
| Pino 17 | RA6/AN6 — I/O port A bit 6 / analog input 6 |
| Pino 18 | RA7/AN7 — I/O port A bit 7 / analog input 7 |
| Pino 19 | VSS — Ground |
| Pino 20 | VDD — Positive supply (4.5V-5.5V) |
| Pino 21 | RB0/INT — I/O port B bit 0 / external interrupt |
| Pino 22 | RB1 — I/O port B bit 1 |
| Pino 23 | RB2 — I/O port B bit 2 |
| Pino 24 | RB3 — I/O port B bit 3 |
| Pino 25 | RB4 — I/O port B bit 4 |
| Pino 26 | RB5 — I/O port B bit 5 |
| Pino 27 | RB6 — I/O port B bit 6 |
| Pino 28 | RB7 — I/O port B bit 7 |
| Pino 29 | VSS — Ground |
| Pino 30 | OSC1 — Crystal oscillator input |
| Pino 31 | OSC2 — Crystal oscillator output |
| Pino 32 | VDD — Positive supply (4.5V-5.5V) |
| Pino 33 | RD0 — I/O port D bit 0 |
| Pino 34 | RD1 — I/O port D bit 1 |
| Pino 35 | RD2 — I/O port D bit 2 |
| Pino 36 | RD3 — I/O port D bit 3 |
| Pino 37 | RD4 — I/O port D bit 4 |
| Pino 38 | RD5 — I/O port D bit 5 |
| Pino 39 | RD6 — I/O port D bit 6 |
| Pino 40 | RD7 — I/O port D bit 7 |
| Pino 41 | RE0 — I/O port E bit 0 |
| Pino 42 | RE1 — I/O port E bit 1 |
| Pino 43 | RE2 — I/O port E bit 2 |
| Pino 44 | RE3 — I/O port E bit 3 |
| Pino 45 | RE4 — I/O port E bit 4 |
| Pino 46 | RE5 — I/O port E bit 5 |
| Pino 47 | RE6 — I/O port E bit 6 |
| Pino 48 | RE7 — I/O port E bit 7 |
| Pino 49 | VSS — Ground |
| Pino 50 | VDD — Positive supply (4.5V-5.5V) |
| Pino 51 | TX1/RC6 — USART1 transmit (alternate function) |
| Pino 52 | RX1/RC7 — USART1 receive (alternate function) |
| Pino 53 | SCL — I2C clock |
| Pino 54 | SDA — I2C data |
| Pino 55 | SDO — SPI data out |
| Pino 56 | SDI — SPI data in |
| Pino 57 | SCK — SPI clock |
| Pino 58 | PWM1 — PWM output 1 |
| Pino 59 | PWM2 — PWM output 2 |
| Pino 60 | CCP1 — Capture/Compare/PWM 1 |
| Pino 61 | CCP2 — Capture/Compare/PWM 2 |
| Pino 62 | MCLR — Master clear reset (active low) |
| Pino 63 | VSS — Ground |
| Pino 64 | VDD — Positive supply (4.5V-5.5V) |
Aplicações típicas
PIC17C756AT-16I/PT é adequado para 6 aplicaçãos: Industrial Control Panels, HVAC Control Boards, Motor Drive Front-End Controllers, Instrumentation Front-Ends, Embedded Communication Bridges, White Goods Control Boards.
Industrial Control Panels
The PIC17C756AT-16I/PT fits industrial control panels because of its 50 I/O pins, 12-channel 10-bit ADC, dual USART, and -40C to +85C industrial temperature grade. Engineers route panel-mounted switches, indicators, and 4-20 mA analog sensor inputs directly to the MCU without external multiplexing, and the 32 KB OTP EPROM holds the ladder-logic-equivalent firmware. At 8.25 MIPS the part handles PID loops on the 16 MHz core while the hardware PWM modules drive solid-state relays and proportional valves.
Recomendado
HVAC Control Boards
The PIC17C756AT-16I/PT's 10-bit ADC aggregates multiple thermistor and pressure-sensor inputs, while its PWM outputs modulate blower and compressor drives in HVAC systems. The industrial temperature grade supports installation in unconditioned plant rooms and rooftop units. Brown-out Reset and Watchdog Timer protect the controller from brown-out and firmware lockup conditions common in motor-switching environments.
Recomendado
Motor Drive Front-End Controllers
In motor drives, the PIC17C756AT-16I/PT serves as the front-end command processor, taking torque and speed references over RS-485 (USART) and generating PWM command signals for a downstream power-stage controller. The 8 x 8 single-cycle hardware multiplier accelerates vector-control math, and the 16 MHz core sustains 8.25 MIPS with headroom for sensor debouncing. Dual capture/compare/PWM modules align phase currents to the inverter cycle.
Recomendado
Instrumentation Front-Ends
Test and measurement instruments use the PIC17C756AT-16I/PT as a front-end digitizer and controller, leveraging the 12-channel 10-bit ADC for slow-scan data acquisition and the I2C/SPI peripherals for LCD and EEPROM interfaces. The 902-byte RAM buffers scan frames before pushing them to a host PC over USART. Industrial temperature grade ensures reliable operation in laboratory and field-deployed instruments.
Recomendado
Embedded Communication Bridges
The PIC17C756AT-16I/PT is well suited to protocol-bridging tasks where a device must translate between RS-232, RS-485, and I2C/SPI networks. Dual USART ports handle two asynchronous buses simultaneously while the SPI port services a sensor cluster. At 8.25 MIPS the part can sustain byte-rate buffering without dropping characters, and the 50 I/O lines drive status LEDs and DIP switches for address configuration.
Recomendado
White Goods Control Boards
White goods such as washing machines and dishwashers use the PIC17C756AT-16I/PT as the appliance controller. The OTP EPROM holds the appliance firmware (no field upgrades required), the 10-bit ADC reads water level and temperature sensors, and the PWM channels drive motor and valve actuators. Brown-out Reset protects against line-voltage transients common in domestic appliance installations.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC17C756AT-16I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC17C756AT-16/PT | PIC17C756A-16I/PT | PIC17C756A-33E/PT | PIC17C756A-16E/PT |
|---|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) | TQFP-64 (PT) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM |
| Max Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 33 MHz | 16 MHz |
| RAM | 902 bytes | 902 bytes | 902 bytes | 902 bytes | 902 bytes |
| Temperature Grade | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C | Extended -40C to +125C | Extended -40C to +125C |
| Packaging Form | Tape & Reel | Tray | Tray | Tray | Tray |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| 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 | 4.5 V to 5.5 V |
Principais diferenciais
- Tape & Reel packaging for high-volume SMT assembly (vs PIC17C756A-16I/PT)
- Industrial -40C to +85C temperature grade (vs PIC17C756AT-16/PT)
- 32 KB OTP EPROM, 50 I/O, 12-channel ADC in TQFP-64 (vs PIC17C752-16I/PT)
Notas de projeto
The PIC17C756AT-16I/PT requires a stable 4.5V to 5.5V supply; recommended decoupling is a 10uF bulk tantalum at the board VDD entry plus a 100 nF ceramic within 5 mm of each VDD pin. The part has multiple VDD/VSS pairs on the TQFP-64 footprint; connecting every pair independently minimises digital switching noise on the analog ADC reference rail. Brown-out Reset must be enabled in the configuration word for industrial environments where the 5V rail may sag during motor inrush.
OTP memory cannot be re-programmed; a programming failure (e.g., interrupted during the high-voltage VPP pulse on the MCLR pin) permanently bricks the device. For development, always use the UV-erasable ceramic-windowed PIC17C756A-16I/P variant (PLCC package with window) to iterate firmware before committing to OTP. Always verify the configuration word before final programming; an accidentally-disabled watchdog or wrong oscillator mode causes immediate firmware hang.
At 16 MHz with all peripherals active, the PIC17C756AT-16I/PT draws roughly 50 mA from the 5V supply (250 mW). The TQFP-64 package has a theta_JA near 50 C/W on a 2-layer JEDEC test board, giving a 12.5 C/W rise above ambient. The industrial -40C to +85C rating leaves comfortable margin at room temperature; for sealed enclosures consider derating to 70 C ambient to protect the OTP memory and reduce long-term retention risk.
Informações de conformidade
RoHS, REACH, lead-free and halogen-free status were not provided in the verified web data; marked [DATA_NEEDED]. The 'I' suffix indicates industrial temperature grade, not automotive AEC-Q100 qualification.
