PIC17C762-16I/PT - 16KB EPROM 8-bit MCU, 66 I/O, TQFP-80 | Microchip
MPN: PIC17C762-16I/PT ✗ Cuối đờiPIC17C762-16I/PT Tóm tắt
An 8-bit microcontroller (MCU) is a small, self-contained computing element that integrates a CPU, non-volatile program memory, working RAM, and peripheral blocks on a single die. Within that hierarchy, an OTP/EPROM MCU stores its firmware in one-time-programmable or erasable-programmable read-only memory, making it a fit for low-volume production, prototyping, and field-upgradable legacy designs. The PIC17C family sits at the high end of Microchip's original 8-bit lineup, delivering more MIPS, more pins, and more memory than the baseline PIC16 family while preserving the easy-to-learn 16-bit instruction word RISC architecture.
Key features of the PIC17C762-16I/PT include a hardware 8-bit x 8-bit single-cycle multiplier, an integrated 10-bit A/D converter with multiple input channels, multiple timer/counter modules, a USART, and capture/compare/PWM peripherals. The wide operating voltage (4.5 V to 5.5 V) and industrial temperature range (-40C to +85C, indicated by the "I" suffix) make it suitable for factory-floor and commercial embedded equipment. Its 80-pin TQFP footprint exposes nearly every pin as a general-purpose I/O, enabling direct bus-style interfacing to LCDs, keypads, and external memory.
Typical applications include industrial control boards, instrumentation front-ends, motor-control subsystems, and legacy embedded products that were designed against the original PIC17C family. Designers migrating a PIC17C762 board to a newer architecture can use the PIC18F8520 as a drop-in software-compatible successor per Microchip's own product page recommendation. The 10-bit A/D and large I/O count also make it relevant for sensor-hub and human-machine-interface designs.
When designing with this device, allocate adequate decoupling (typically 0.1 uF ceramic per VDD/VSS pair) and follow Microchip's PIC17C family errata for the OTP programming algorithm. Note that the PIC17C762 has been superseded by the PIC18F8520 for new designs; verify long-term supply before committing to new production.
Bộ thay thế dễ dàng lắp đặt cho PIC17C762-16I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC17C762-16I/PT (cùng hình factor và footprint) — khác nhau ở Package, Data Bus Width, Core Architecture, I/O Pins, Operating Temperature.
PIC17C762-16/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C756A-16I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F8520-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762T-16I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC17C766-16I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC17C762-16I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC |
| Program Memory | 16 KB EPROM (OTP) |
| RAM | 678 bytes |
| Data EEPROM | Not specified (internal data memory only) |
| Tần số xung maksimum | 33 MHz input (16 MHz for -16 speed grade) |
| Instruction Cycle | 121 ns (single cycle, 4-clock) |
| Performance | 8.25 MIPS |
| Supply Voltage (VDD) | 4.5 V to 5.5 V |
| I/O Pins | 50 to 66 (per peripheral multiplex) |
| A/D Converter | 10-bit, multi-channel |
| Multiplier | 8-bit x 8-bit hardware, single-cycle |
| Nhiệt độ hoạt động | -40C to +85C (industrial, "I" suffix) |
| Hộp | TQFP-80 (PT) |
| Kiểu lắp đặt | Surface Mount |
| ROM Type | OTP (One-Time Programmable) EPROM |
| Instruction Set | 58 single-word instructions |
Cấu hình chân PIC17C762-16I/PT
| Chân 1 | RC0 — PORTC bit 0 / digital I/O |
| Chân 2 | RC1 — PORTC bit 1 / digital I/O |
| Chân 3 | RC2 — PORTC bit 2 / digital I/O |
| Chân 4 | RC3 — PORTC bit 3 / digital I/O |
| Chân 5 | RC4 — PORTC bit 4 / digital I/O |
| Chân 6 | RC5 — PORTC bit 5 / digital I/O |
| Chân 7 | RC6 — PORTC bit 6 / digital I/O |
| Chân 8 | RC7 — PORTC bit 7 / digital I/O |
| Chân 9 | VSS — Ground reference |
| Chân 10 | RD0 — PORTD bit 0 / digital I/O |
| Chân 11 | RD1 — PORTD bit 1 / digital I/O |
| Chân 12 | RD2 — PORTD bit 2 / digital I/O |
| Chân 13 | RD3 — PORTD bit 3 / digital I/O |
| Chân 14 | RD4 — PORTD bit 4 / digital I/O |
| Chân 15 | RD5 — PORTD bit 5 / digital I/O |
| Chân 16 | RD6 — PORTD bit 6 / digital I/O |
| Chân 17 | RD7 — PORTD bit 7 / digital I/O |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VREF — A/D voltage reference input |
| Chân 20 | AVSS — Analog ground |
| Chân 21 | AN0 — Analog input channel 0 |
| Chân 22 | AN1 — Analog input channel 1 |
| Chân 23 | AN2 — Analog input channel 2 |
| Chân 24 | AN3 — Analog input channel 3 |
| Chân 25 | AN4 — Analog input channel 4 |
| Chân 26 | AN5 — Analog input channel 5 |
| Chân 27 | AN6 — Analog input channel 6 |
| Chân 28 | AN7 — Analog input channel 7 |
| Chân 29 | AVDD — Analog supply voltage |
| Chân 30 | RA0 — PORTA bit 0 / digital I/O |
| Chân 31 | RA1 — PORTA bit 1 / digital I/O |
| Chân 32 | RA2 — PORTA bit 2 / digital I/O |
| Chân 33 | RA3 — PORTA bit 3 / digital I/O |
| Chân 34 | RA4 — PORTA bit 4 / digital I/O |
| Chân 35 | RA5 — PORTA bit 5 / digital I/O |
| Chân 36 | RA6 — PORTA bit 6 / digital I/O |
| Chân 37 | RA7 — PORTA bit 7 / digital I/O |
| Chân 38 | VSS — Ground reference |
| Chân 39 | OSC1 — Oscillator input / crystal connection |
| Chân 40 | OSC2 — Oscillator output / crystal connection |
| Chân 41 | MCLR — Master Clear reset input (active low) |
| Chân 42 | RB0 — PORTB bit 0 / digital I/O / external interrupt |
| Chân 43 | RB1 — PORTB bit 1 / digital I/O |
| Chân 44 | RB2 — PORTB bit 2 / digital I/O |
| Chân 45 | RB3 — PORTB bit 3 / digital I/O |
| Chân 46 | RB4 — PORTB bit 4 / digital I/O |
| Chân 47 | RB5 — PORTB bit 5 / digital I/O |
| Chân 48 | RB6 — PORTB bit 6 / digital I/O / ICSCLK |
| Chân 49 | RB7 — PORTB bit 7 / digital I/O / ICSDAT |
| Chân 50 | VSS — Ground reference |
| Chân 51 | VDD — Digital supply voltage |
| Chân 52 | RE0 — PORTE bit 0 / digital I/O |
| Chân 53 | RE1 — PORTE bit 1 / digital I/O |
| Chân 54 | RE2 — PORTE bit 2 / digital I/O |
| Chân 55 | RE3 — PORTE bit 3 / digital I/O |
| Chân 56 | RE4 — PORTE bit 4 / digital I/O |
| Chân 57 | RE5 — PORTE bit 5 / digital I/O |
| Chân 58 | RE6 — PORTE bit 6 / digital I/O |
| Chân 59 | RE7 — PORTE bit 7 / digital I/O |
| Chân 60 | VSS — Ground reference |
| Chân 61 | VDD — Digital supply voltage |
| Chân 62 | RF0 — PORTF bit 0 / digital I/O |
| Chân 63 | RF1 — PORTF bit 1 / digital I/O |
| Chân 64 | RF2 — PORTF bit 2 / digital I/O |
| Chân 65 | RF3 — PORTF bit 3 / digital I/O |
| Chân 66 | RF4 — PORTF bit 4 / digital I/O |
| Chân 67 | RF5 — PORTF bit 5 / digital I/O |
| Chân 68 | RF6 — PORTF bit 6 / digital I/O |
| Chân 69 | RF7 — PORTF bit 7 / digital I/O |
| Chân 70 | VSS — Ground reference |
| Chân 71 | RG0 — PORTG bit 0 / digital I/O |
| Chân 72 | RG1 — PORTG bit 1 / digital I/O |
| Chân 73 | RG2 — PORTG bit 2 / digital I/O |
| Chân 74 | RG3 — PORTG bit 3 / digital I/O |
| Chân 75 | RG4 — PORTG bit 4 / digital I/O |
| Chân 76 | VDD — Digital supply voltage |
| Chân 77 | RH0 — PORTH bit 0 / digital I/O |
| Chân 78 | RH1 — PORTH bit 1 / digital I/O |
| Chân 79 | RH2 — PORTH bit 2 / digital I/O |
| Chân 80 | RH3 — PORTH bit 3 / digital I/O |
Ứng dụng tiêu biểu
PIC17C762-16I/PT phù hợp cho 6 Áp dụngs: Industrial Control Boards, Instrumentation Front-Ends, Motor Control Subsystems, Human-Machine Interface Controllers, Sensor Hub and Data Acquisition, Legacy Embedded Product Sustaining.
Industrial Control Boards
The PIC17C762-16I/PT fits industrial control boards because of its 80-pin TQFP package exposing 50-66 I/O lines for direct interface to relays, contactors, opto-isolated inputs, and 7-segment displays. Its 8.25 MIPS core and 121 ns instruction cycle deliver deterministic response time for closed-loop PID loops, while the on-chip 10-bit A/D handles analog sensor readback for temperature, pressure, and flow. Industrial temperature range (-40C to +85C) and 4.5-5.5 V supply tolerance suit 24 V-conditioned factory rails. Pair with PIC18F8520-I/PT as the modern migration target when firmware space exceeds 16 KB.
Được đề xuất
Instrumentation Front-Ends
For instrumentation front-ends such as digital multimeters and bench-top test gear, the PIC17C762-16I/PT provides the 10-bit A/D converter, generous I/O count for rotary encoder inputs, and the deterministic 121 ns instruction cycle needed for precise timing measurements. The 678 bytes of RAM hold real-time sample buffers, while the 16 KB OTP holds calibration tables and user-interface state machines. The wide digital I/O enables direct drive of LCD character displays without external bus expander ICs, reducing BOM cost in legacy instrument designs.
Được đề xuất
Motor Control Subsystems
The PIC17C762-16I/PT is well suited for motor control subsystems requiring multiple PWM channels, quadrature encoder inputs, and fault-monitoring GPIO. Its hardware 8-bit x 8-bit single-cycle multiplier accelerates Clarke/Park transformations in sensorless BLDC commutation algorithms, while the 50+ I/O lines handle H-bridge gate signals and current-sense amplifiers. The 10-bit A/D converter reads back shunt current and back-EMF for closed-loop torque control, and the 8.25 MIPS performance keeps the control loop well under 100 us.
Được đề xuất
Human-Machine Interface Controllers
In HMI controllers driving character LCDs, keypads, and status LEDs, the PIC17C762-16I/PT offers the 50-66 I/O lines required to scan 4x4 key matrices, drive 16x2 or 20x4 LCDs in 4-bit mode, and bit-bang shift registers for additional indicator LEDs. The 16 KB OTP holds menu trees and event logs, while the 678-byte RAM serves as scratch for input debouncing. The PIC17C RISC core's 121 ns cycle time keeps keypad scan latency under 2 ms, providing responsive user feedback without an external RTOS.
Được đề xuất
Sensor Hub and Data Acquisition
For multi-sensor data acquisition boards, the PIC17C762-16I/PT's multi-channel 10-bit A/D converter digitizes thermocouples, RTDs, and 4-20 mA current loops while the hardware multiplier scales raw counts into engineering units in a single cycle. The 50+ I/O lines drive RS-485 transceivers for Modbus RTU communication, and the 678-byte RAM buffers incoming frames before forwarding them to a host. With the 8.25 MIPS core, sampling rates up to 50 kSPS are achievable across multiple channels in round-robin fashion.
Được đề xuất
Legacy Embedded Product Sustaining
The PIC17C762-16I/PT remains in service for sustaining engineering of legacy products originally designed around the PIC17C family, including industrial printers, weighing scales, and process controllers. Because the PIC18F8520 is software-migratable and shares the same TQFP-80 footprint, sustaining engineers can ship either PIC17C762 or PIC18F8520 firmware images on identical PCBs depending on stock availability. The 16 KB OTP/EPROM preserves bit-exact legacy behavior for installed bases that cannot tolerate firmware rewrites.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC17C762-16I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC17C762-16/PT | PIC17C756A-16I/PT | PIC18F8520-I/PT | PIC17C762T-16I/PT | PIC17C766-16I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (PT) | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same | TQFP-80 (PT) - same |
| Program Memory | 16 KB EPROM | 16 KB EPROM (same) | 8 KB EPROM (-50%) | 32 KB Flash (+100%) | 16 KB EPROM (same) | 16 KB EPROM (same) |
| RAM | 678 bytes | 678 bytes (same) | 454 bytes (-33%) | 2048 bytes (+202%) | 678 bytes (same) | 902 bytes (+33%) |
| Memory Type | OTP EPROM | OTP EPROM (same) | OTP EPROM (same) | Flash (different) | OTP EPROM (same) | OTP EPROM (same) |
| Core Architecture | PIC17C 8-bit | PIC17C 8-bit (same) | PIC17C 8-bit (same) | PIC18 enhanced 8-bit | PIC17C 8-bit (same) | PIC17C 8-bit (same) |
| Operating Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V (same) | 4.5 V to 5.5 V (same) | 2.0 V to 5.5 V (wider) | 4.5 V to 5.5 V (same) | 4.5 V to 5.5 V (same) |
| Temperature Grade | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C (same) | Industrial -40C to +85C (same) | Industrial -40C to +85C (same) | Industrial -40C to +85C (same) |
| Lifecycle Status | NRND | NRND | NRND | Active (recommended successor) | NRND | NRND |
Bảo phân biệt quan trọng
- Highest memory variant in the PIC17C762 family before moving to PIC17C766 (vsPIC17C756A-16I/PT)
- Officially sanctioned modernization path with same footprint (vsPIC18F8520-I/PT)
- Industrial temperature range vs commercial-only sibling (vsPIC17C762-16/PT)
- More RAM than PIC17C762 without changing package (vsPIC17C766-16I/PT)
Ghi chú thiết kế
The PIC17C762-16I/PT requires 4.5 V to 5.5 V on every VDD pin (the 80-pin TQFP has multiple VDD/VSS pairs at pins 38, 50, 51, 60, 61, 70, 76). Place a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD/VSS pair and add a bulk 10 uF tantalum at the regulator output. Use a low-ESR regulator such as the Microchip MCP1700 or equivalent LDO to keep the analog supply (AVDD/AVSS) clean for the 10-bit A/D converter.
Do not confuse the PIC17C762-16I/PT (-16 speed grade, 16 MHz max oscillator) with the -33 speed grade PIC17C756A-33I/PT which runs at 33 MHz oscillator. Using a 20 MHz crystal on a -16 device will result in out-of-spec timing and instruction cycle violations. Also note the PIC17C762 is in NRND status per Microchip; for new designs the PIC18F8520 is the explicitly recommended successor on the same TQFP-80 footprint.
For the 10-bit A/D converter, route analog inputs (AN0-AN7) away from digital switching traces on the PCB and place a small RC filter (typically 1 kohm + 100 pF) at each analog input when driving from high-impedance sensors. Use VREF and AVSS pins (19 and 20) with their own decoupling and avoid sharing AVSS with digital ground returns - use a star-ground topology at the regulator ground pin.
The TQFP-80 package has a 0.5 mm pitch which requires fine-pitch PCB layout capability. Use 4 mil traces with 4 mil spaces minimum and plan for 8 mil via-in-pad if BGA-style escape is needed. Pin 1 is identified by the dot marker at the top-left when viewing the package top surface with the text orientation right-side-up.
Thông tin tuân thủ
Lead-free TQFP-80 package per Microchip ordering code "/PT". Formal RoHS/REACH compliance not explicitly confirmed in the public datasheet snippets available; request compliance certificate from Microchip for regulated end markets. AEC-Q100 not applicable (general industrial/commercial MCU).
