PIC17C762-16/PT - 8-bit OTP MCU, 16KB EPROM, 66 I/O TQFP-80 | Microchip
N.º da peça: PIC17C762-16/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $14.5 | $14,50 |
| 10 | $13.2 | $132,00 |
| 100 | $11.85 | $1.185,00 |
| 500 | $10.5 | $5.250,00 |
| 1.000 | $9.25 | $9.250,00 |
PIC17C762-16/PT Visão geral
An OTP microcontroller (One-Time-Programmable microcontroller) is a non-volatile program-memory MCU whose EPROM cells can be written exactly once during production programming, then retain their bit pattern for the lifetime of the part. OTP sits in the microcontroller taxonomy between mask-ROM MCUs (cheapest, programmed at the fab) and flash MCUs (rewritable for field upgrades); OTP MCUs are favored for high-volume mature products where firmware is stable and production tooling costs favor factory programming. Within Microchip's lineup, PIC17C762 belongs to the PIC17C family of 8-bit RISC microcontrollers, which in turn sits above PIC16C and below PIC18 in performance and peripheral count.
Key features of the PIC17C762-16/PT include its high-performance Harvard RISC architecture with only 58 single-word instructions, single-cycle instruction execution (except program branches and table reads/writes which are two-cycle), a wide 4.5 V to 5.5 V supply range, an external clock input up to 33 MHz, and built-in brown-out / power-on reset and watchdog timer. The internal 10-bit A/D converter supports multiple channels for mixed-signal embedded designs. Industrial-grade operation is supported through the -40C to +85C commercial/industrial range (per the PT suffix family). The 80-pin TQFP package exposes 66 I/O pins, leaving 14 pins for power, ground, oscillator, MCLR, and programming functions.
Architecturally, the PIC17C762 separates program memory (16 KB OTP EPROM) from data memory (678 bytes RAM + 16-level hardware stack), allowing the 16-bit instruction word to coexist with an 8-bit data path. The single-cycle hardware multiplier accelerates arithmetic operations common in motor control and instrumentation, while the peripheral set supports both event-driven (timer/capture) and communications (USART) workloads.
Typical applications include industrial control panels, motor drive controllers, instrumentation front-ends, sensor conditioning with on-chip A/D, low-cost data acquisition terminals, and any high-volume embedded design that benefits from one-time factory programming of stable firmware. Compared with newer flash-based PIC18F8520, the PIC17C762-16/PT targets production runs where firmware stability eliminates the need for field re-programmability.
When designing with this part, note that OTP memory cannot be erased or rewritten; firmware bugs are unrecoverable in the field. Ensure a stable, well-regulated 5 V supply and follow Microchip's PIC17C programming specifications for in-circuit or socket programming using the ICSP interface. A newer recommended device per Microchip is the PIC18F8520, which adds flash memory and improved peripherals while remaining software-compatible at the architectural level.
Alternativas drop-in para PIC17C762-16/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 PIC17C762-16/PT (mesmo formato e footprint) — diferindo em Core Architecture, Package, Data Bus Width, Instruction Cycle Time, Maximum Clock Frequency.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC17C762-16I/PT
✅ Drop-In✓ Em estoque
$10.05 / unidade
Ver ficha técnica →PIC17C762-16E/PT
✅ Drop-In✓ Em estoque
$10.4 / unidade
Ver ficha técnica →PIC17C762T-16I/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC17C762T-16/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC17C762-16E/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$10.4 / unidade
Ver ficha técnica →PIC17C762-16/PT Classificações máximas e características elétricas
| Core Architecture | PIC 8-bit RISC Harvard |
| Program Memory Type | OTP EPROM (One-Time-Programmable) |
| Program Memory Size | 16 KB (16 K x 16 words) |
| RAM Size | 678 bytes |
| Largura do barramento de dados | 16-bit (instruction) / 8-bit (data) |
| Frequência máxima de clock | 33 MHz (external) |
| Instruction Cycle Time | 121 ns (single-cycle for most instructions) |
| MIPS Performance | 8.25 MIPS |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| Number of I/O Pins | 66 |
| A/D Converter | 10-bit, multi-channel |
| Hardware Multiplier | 8-bit x 8-bit, single-cycle |
| Number of Instructions | 58 single-word instructions |
| Encapsulamento | TQFP-80 (PT), 12x12 mm, surface mount |
| Faixa de temperatura de operação | 0C to +70C (Commercial) |
| Tipo de montagem | Surface Mount (Gull Wing) |
| Status RoHS | Contains lead (pre-RoHS process); non-compliant for new designs |
Configuração de pinos do PIC17C762-16/PT
| Pino 1 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Pino 2 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Pino 3 | RA2/AN2 — Port A bit 2 / analog input 2 |
| Pino 4 | RA3/AN3 — Port A bit 3 / analog input 3 |
| Pino 5 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Pino 6 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Pino 7 | AVDD — Analog supply voltage |
| Pino 8 | AVSS — Analog ground |
| Pino 9 | OSC1 — Oscillator input |
| Pino 10 | OSC2 — Oscillator output |
| Pino 11 | MCLR — Master clear reset (active low) |
| Pino 12 | VPP — Programming voltage input |
| Pino 13 | RB0/INT — Port B bit 0 / external interrupt |
| Pino 14 | RB1 — Port B bit 1 |
| Pino 15 | RB2 — Port B bit 2 |
| Pino 16 | RB3 — Port B bit 3 |
| Pino 17 | RB4 — Port B bit 4 |
| Pino 18 | RB5 — Port B bit 5 |
| Pino 19 | RB6 — Port B bit 6 |
| Pino 20 | RB7 — Port B bit 7 |
| Pino 21 | VDD — Digital supply voltage (+5V) |
| Pino 22 | VSS — Digital ground |
| Pino 23 | RC0 — Port C bit 0 |
| Pino 24 | RC1 — Port C bit 1 |
| Pino 25 | RC2 — Port C bit 2 |
| Pino 26 | RC3 — Port C bit 3 |
| Pino 27 | RC4 — Port C bit 4 |
| Pino 28 | RC5 — Port C bit 5 |
| Pino 29 | RC6 — Port C bit 6 |
| Pino 30 | RC7 — Port C bit 7 |
| Pino 31 | RD0 — Port D bit 0 |
| Pino 32 | RD1 — Port D bit 1 |
| Pino 33 | RD2 — Port D bit 2 |
| Pino 34 | RD3 — Port D bit 3 |
| Pino 35 | RD4 — Port D bit 4 |
| Pino 36 | RD5 — Port D bit 5 |
| Pino 37 | RD6 — Port D bit 6 |
| Pino 38 | RD7 — Port D bit 7 |
| Pino 39 | VDD — Digital supply voltage (+5V) |
| Pino 40 | VSS — Digital ground |
| Pino 41 | RE0 — Port E bit 0 |
| Pino 42 | RE1 — Port E bit 1 |
| Pino 43 | RE2 — Port E bit 2 |
| Pino 44 | RE3 — Port E bit 3 |
| Pino 45 | RE4 — Port E bit 4 |
| Pino 46 | RE5 — Port E bit 5 |
| Pino 47 | RE6 — Port E bit 6 |
| Pino 48 | RE7 — Port E bit 7 |
| Pino 49 | RF0 — Port F bit 0 |
| Pino 50 | RF1 — Port F bit 1 |
| Pino 51 | RF2 — Port F bit 2 |
| Pino 52 | RF3 — Port F bit 3 |
| Pino 53 | RF4 — Port F bit 4 |
| Pino 54 | RF5 — Port F bit 5 |
| Pino 55 | RF6 — Port F bit 6 |
| Pino 56 | RF7 — Port F bit 7 |
| Pino 57 | VDD — Digital supply voltage (+5V) |
| Pino 58 | VSS — Digital ground |
| Pino 59 | RG0 — Port G bit 0 |
| Pino 60 | RG1 — Port G bit 1 |
| Pino 61 | RG2 — Port G bit 2 |
| Pino 62 | RG3 — Port G bit 3 |
| Pino 63 | RG4 — Port G bit 4 |
| Pino 64 | TX/CK — USART transmit / clock |
| Pino 65 | RX/DT — USART receive / data |
| Pino 66 | T0CKI — Timer 0 clock input |
| Pino 67 | T1CKI — Timer 1 clock input |
| Pino 68 | CCP1 — Capture/Compare/PWM 1 |
| Pino 69 | CCP2 — Capture/Compare/PWM 2 |
| Pino 70 | SS — SPI slave select |
| Pino 71 | SDO — SPI data out |
| Pino 72 | SDI — SPI data in |
| Pino 73 | SCK — SPI clock |
| Pino 74 | VDD — Digital supply voltage (+5V) |
| Pino 75 | VSS — Digital ground |
| Pino 76 | RH0 — Port H bit 0 |
| Pino 77 | RH1 — Port H bit 1 |
| Pino 78 | RH2 — Port H bit 2 |
| Pino 79 | RH3 — Port H bit 3 |
| Pino 80 | RH4 — Port H bit 4 |
Aplicações típicas
PIC17C762-16/PT é adequado para 6 aplicaçãos: Industrial Control Panels, Motor Drive Controllers, Sensor Instrumentation Front-Ends, Data Acquisition Terminals, Security and Access Control Systems, White Goods and Appliance Controllers.
Industrial Control Panels
The PIC17C762-16/PT is well suited to industrial control panels where stable, mature firmware drives keypads, LED indicators, relay outputs, and discrete I/O. Its 66 I/O pins handle multiple HMI inputs and outputs without external expanders, while the 10-bit on-chip ADC reads analog setpoints (temperature, pressure, voltage) directly. The Harvard RISC core's deterministic single-cycle instruction execution (121 ns) ensures predictable response times for real-time control loops, and the 4.5-5.5 V supply matches common industrial 5 V backplanes. OTP memory guarantees firmware integrity against accidental field reprogramming in deployed equipment.
Recomendado
Motor Drive Controllers
The PIC17C762-16/PT's 8-bit single-cycle hardware multiplier accelerates the PID and vector-control math used in brushed and stepper motor controllers, while its 33 MHz clock delivers 8.25 MIPS for real-time commutation. The capture/compare/PWM peripherals generate motor-drive waveforms with low software overhead, and the 10-bit ADC samples motor current/voltage feedback in synchronous timing. OTP memory suits high-volume motor products with stable firmware. For higher-performance BLDC/FOC drives, consider migrating to dsPIC33E devices, but for cost-sensitive brushed/stepper applications the PIC17C762 remains a strong fit.
Recomendado
Sensor Instrumentation Front-Ends
Instrumentation front-ends benefit from the PIC17C762-16/PT's on-chip 10-bit ADC and 66 I/O pins, which allow direct connection to multiple analog sensors (thermocouples via amplifier, RTDs, strain gauges) and digital sensors. The hardware multiplier speeds scaling and linearization calculations, while the 678-byte RAM accommodates moving-average filters and calibration tables. The deterministic 121 ns instruction cycle supports consistent sampling intervals essential for measurement accuracy. OTP memory locks calibrated firmware into production units.
Recomendado
Data Acquisition Terminals
Low-cost data acquisition terminals use the PIC17C762-16/PT to read multiple analog channels via the 10-bit ADC, buffer samples in 678-byte RAM, and transmit results over USART to a host PC or PLC. The 16 KB OTP program memory holds acquisition routines, calibration coefficients, and a simple command interpreter. Industrial-grade I/E variants operate over -40C to +85C/+125C for factory-floor deployment. For higher-channel-count applications, the PIC17C762's 66 I/O enable direct multiplexing without external logic.
Recomendado
Security and Access Control Systems
The PIC17C762-16/PT is a fit for security keypads, RFID readers, and access-control panels where its 66 I/O pins drive 4x4 matrix keypads, status LEDs, and door-lock relays, while the on-chip ADC monitors backup battery voltage. OTP memory prevents firmware tampering and unauthorized modification of access-control logic. The Harvard architecture's deterministic execution ensures consistent keypad debounce timing and reliable USART communication with the central controller. The commercial temperature grade suits indoor installations.
Recomendado
White Goods and Appliance Controllers
Washing machines, dishwashers, ovens, and other white goods use the PIC17C762-16/PT as the main controller, leveraging 66 I/O pins to drive 7-segment displays, control panel keypads, triac-fired heater outputs, and motor relays. The 10-bit ADC reads water-level, temperature, and motor-current sensors for closed-loop control. The Harvard RISC core's deterministic execution ensures safe appliance sequencing, and OTP memory locks appliance firmware against field modification. The 33 MHz clock provides responsive user-interface update rates.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC17C762-16/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC17C762-16I/PT | PIC17C762-16E/PT | PIC17C762T-16I/PT | PIC17C762T-16/PT |
|---|---|---|---|---|---|
| Package | TQFP-80 (PT) | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM |
| Program Memory Size | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| RAM Size | 678 bytes | 678 bytes | 678 bytes | 678 bytes | 678 bytes |
| Operating Temperature | 0C to +70C | -40C to +85C | -40C to +125C | -40C to +85C | 0C to +70C |
| Maximum Clock | 33 MHz | 33 MHz | 33 MHz | 33 MHz | 33 MHz |
| Number of I/O Pins | 66 | 66 | 66 | 66 | 66 |
| A/D Converter | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principais diferenciais
- Highest pin count and I/O count in the PIC17C family for panel/control designs (vs PIC17C756A-16I/PT)
- Industrial and extended temperature variants available with same die (vs PIC16LF877A-I/PT)
- Mature 8-bit architecture with extensive legacy code base (vs PIC18F8520 (recommended migration))
Notas de projeto
PIC17C762-16/PT uses OTP (One-Time-Programmable) EPROM, not flash memory. Once programmed, the firmware CANNOT be erased or rewritten in the field. This means any firmware bug discovered after production is unrecoverable in-circuit and the part must be replaced. Designers must fully validate firmware on engineering samples before committing to production programming. For new designs requiring field upgradability, use the Microchip-recommended PIC18F8520 (flash-based) instead.
PIC17C762-16/PT requires a regulated 4.5 V to 5.5 V supply with adequate decoupling. Place 100 nF ceramic capacitors close to each VDD/VSS pin pair, plus a 10 uF bulk tantalum or aluminum capacitor at the device supply pin. The AVDD/AVSS analog supply pins should be filtered separately from VDD/VSS to keep ADC readings clean - typical practice is a ferrite bead between digital and analog supplies plus a 100 nF + 10 uF filter capacitor at AVDD. In-circuit Serial Programming (ICSP) requires the VPP pin to be driven to ~13V during programming.
Route the 33 MHz oscillator (or external clock) traces on the top layer with short, direct paths to OSC1/OSC2 and guard them with a ground pour on both sides. Keep high-speed switching signals (CCP PWM outputs, USART lines) away from analog ADC inputs to minimize digital-to-analog crosstalk. The TQFP-80 package has a center thermal pad that should be soldered to a ground plane for mechanical strength and thermal dissipation. Place a 4-layer PCB with dedicated VDD and GND planes for production designs.
The /PT suffix specifically denotes commercial temperature grade (0C to +70C). For industrial applications, use /I/PT or /E/PT suffixes. Always check the operating-temperature marking on the chip against your application's environmental requirements. Mixing commercial parts into industrial designs is a common reliability failure that is often diagnosed only after field failures occur. Also verify pin 1 orientation - the TQFP-80 dot/notch indicator must be correctly aligned to avoid reversed mounting.
Informações de conformidade
PIC17C762-16/PT was released before RoHS lead-free mandates were in force and uses lead-containing solder finish. Not RoHS compliant; not suitable for new designs requiring RoHS. AEC-Q100 automotive qualification not available. Reach compliant per standard Microchip declarations.
