PIC17LC766-08I/PT - 8-Bit 8MHz 32KB OTP MCU | Microchip
MPN: PIC17LC766-08I/PT ✗ Akhir HidupPIC17LC766-08I/PT Ringkasan
An 8-bit microcontroller (MCU) is a programmable processor that uses an internal 8-bit data bus and combines a CPU, non-volatile program memory, RAM, and peripherals on a single die. Within the broader taxonomy, the PIC17C766 sits in the high-performance tier of Microchip's 8-bit PIC family, above the mid-range PIC16 line and below the enhanced PIC18 line; the full hierarchy is 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Its RISC architecture, hardware multiply and 33 MHz clock-input capability make it one of the most capable 8-bit controllers Microchip has shipped, optimized for control loops and real-time processing.
Key features include 10-bit A/D conversion channels for mixed-signal sensing, multiple counter/timer peripherals, a hardware USART, PWM modules, and on-chip EEPROM emulation through the OTP array. The "LC" suffix designates the low-voltage CMOS variant, allowing operation down to 2.5 V for battery-powered designs. The industrial ("I") temperature grade supports -40C to +85C operation.
Typical applications include industrial automation and motor control, robotics, HVAC controllers, automotive body and chassis subsystems (where automotive-grade parts are not required), and embedded data-acquisition front ends. The wide digital I/O count (66 pins) and large memory make the device well suited to complex state-machine-driven control panels and user-interface controllers that exceed the capability of mid-range 8-bit MCUs.
When designing with this device, note that the OTP memory variant cannot be reprogrammed in-circuit; a windowed CERDIP version exists for prototyping. The Microchip datasheet recommends PIC18F8520 as the newer migration path for new designs that need flash memory and faster execution. Ensure the trace impedance and decoupling layout follow Microchip's reference design for 8-bit PIC controllers running above 4 MHz.
Alternatif penggantian untuk PIC17LC766-08I/PT — paket yang sama, pin-pada-pin kompatibel. Bagian paket yang berbeda memerlukan kerja ulang PCB diabaikan.
Variasi di dalam seri ini
Model-series yang sama yang kompatibel dengan penggantian PIC17LC766-08I/PT (sama faktor bentuk dan footprint) — berbeda di dalam Package, Core Architecture, I/O Pins, Operating Temperature, Data Bus Width.
PIC17LC766T-08I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C766-16I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C766T-33I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C766T-16E/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C766-16E/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17LC766-08I/PT Rating Maksimal & Karakteristik Listrik
| Core Architecture | PIC 8-bit RISC |
| Program Memory Size | 32 KB (16K x 16) OTP EPROM |
| RAM Size | 902 bytes |
| Frekuensi Bawah Maximum | 33 MHz input / 8 MHz instruction |
| Instruction Cycle Time | 121 ns (single cycle) |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Number of I/O Pins | 66 |
| A/D Converter | 10-bit on-chip |
| Lebar Bus Data | 16-bit (program) / 8-bit (data) |
| Instruction Set | 58 single-word instructions |
| On-chip Multiplier | 8 x 8 single-cycle hardware |
| Suhu Kerja | -40C to +85C (Industrial grade) |
| Paket | 80-pin TQFP (PT), 12x12 mm |
| Tipe Mounting | Surface Mount |
| Lead-Free / RoHS | Compliant per DigiKey listing |
Konfigurasi Pin PIC17LC766-08I/PT
| Pin produk 1 | OSC1 — Crystal oscillator input |
| Pin produk 2 | OSC2 — Crystal oscillator output |
| Pin produk 3 | MCLR — Master clear reset input |
| Pin produk 4 | RA0 — PORTA I/O bit 0 |
| Pin produk 5 | RA1 — PORTA I/O bit 1 |
| Pin produk 6 | RA2 — PORTA I/O bit 2 |
| Pin produk 7 | RA3 — PORTA I/O bit 3 |
| Pin produk 8 | RA4 — PORTA I/O bit 4 |
| Pin produk 9 | RA5 — PORTA I/O bit 5 |
| Pin produk 10 | RA6 — PORTA I/O bit 6 |
| Pin produk 11 | RA7 — PORTA I/O bit 7 |
| Pin produk 12 | VSS — Ground |
| Pin produk 13 | VDD — Positive supply |
| Pin produk 14 | RB0 — PORTB I/O bit 0 (external interrupt) |
| Pin produk 15 | RB1 — PORTB I/O bit 1 |
| Pin produk 16 | RB2 — PORTB I/O bit 2 |
| Pin produk 17 | RB3 — PORTB I/O bit 3 |
| Pin produk 18 | RB4 — PORTB I/O bit 4 |
| Pin produk 19 | RB5 — PORTB I/O bit 5 |
| Pin produk 20 | RB6 — PORTB I/O bit 6 |
| Pin produk 21 | RB7 — PORTB I/O bit 7 |
| Pin produk 22 | RC0 — PORTC I/O bit 0 |
| Pin produk 23 | RC1 — PORTC I/O bit 1 |
| Pin produk 24 | RC2 — PORTC I/O bit 2 |
| Pin produk 25 | RC3 — PORTC I/O bit 3 |
| Pin produk 26 | RC4 — PORTC I/O bit 4 |
| Pin produk 27 | RC5 — PORTC I/O bit 5 |
| Pin produk 28 | RC6 — PORTC I/O bit 6 / TX |
| Pin produk 29 | RC7 — PORTC I/O bit 7 / RX |
| Pin produk 30 | VSS — Ground |
| Pin produk 31 | VDD — Positive supply |
| Pin produk 32 | RD0 — PORTD I/O bit 0 |
| Pin produk 33 | RD1 — PORTD I/O bit 1 |
| Pin produk 34 | RD2 — PORTD I/O bit 2 |
| Pin produk 35 | RD3 — PORTD I/O bit 3 |
| Pin produk 36 | RD4 — PORTD I/O bit 4 |
| Pin produk 37 | RD5 — PORTD I/O bit 5 |
| Pin produk 38 | RD6 — PORTD I/O bit 6 |
| Pin produk 39 | RD7 — PORTD I/O bit 7 |
| Pin produk 40 | RE0 — PORTE I/O bit 0 |
| Pin produk 41 | RE1 — PORTE I/O bit 1 |
| Pin produk 42 | RE2 — PORTE I/O bit 2 |
| Pin produk 43 | RE3 — PORTE I/O bit 3 |
| Pin produk 44 | RE4 — PORTE I/O bit 4 |
| Pin produk 45 | RE5 — PORTE I/O bit 5 |
| Pin produk 46 | RE6 — PORTE I/O bit 6 |
| Pin produk 47 | RE7 — PORTE I/O bit 7 |
| Pin produk 48 | VSS — Ground |
| Pin produk 49 | VDD — Positive supply |
| Pin produk 50 | RF0 — PORTF I/O bit 0 / AN0 |
| Pin produk 51 | RF1 — PORTF I/O bit 1 / AN1 |
| Pin produk 52 | RF2 — PORTF I/O bit 2 / AN2 |
| Pin produk 53 | RF3 — PORTF I/O bit 3 / AN3 |
| Pin produk 54 | RF4 — PORTF I/O bit 4 / AN4 |
| Pin produk 55 | RF5 — PORTF I/O bit 5 / AN5 |
| Pin produk 56 | RF6 — PORTF I/O bit 6 / AN6 |
| Pin produk 57 | RF7 — PORTF I/O bit 7 / AN7 |
| Pin produk 58 | RG0 — PORTG I/O bit 0 |
| Pin produk 59 | RG1 — PORTG I/O bit 1 |
| Pin produk 60 | RG2 — PORTG I/O bit 2 |
| Pin produk 61 | RG3 — PORTG I/O bit 3 |
| Pin produk 62 | RG4 — PORTG I/O bit 4 |
| Pin produk 63 | AVSS — Analog ground |
| Pin produk 64 | AVDD — Analog positive supply |
| Pin produk 65 | RH0 — PORTH I/O bit 0 |
| Pin produk 66 | RH1 — PORTH I/O bit 1 |
| Pin produk 67 | RH2 — PORTH I/O bit 2 |
| Pin produk 68 | RH3 — PORTH I/O bit 3 |
| Pin produk 69 | RH4 — PORTH I/O bit 4 |
| Pin produk 70 | RH5 — PORTH I/O bit 5 |
| Pin produk 71 | RH6 — PORTH I/O bit 6 |
| Pin produk 72 | RH7 — PORTH I/O bit 7 |
| Pin produk 73 | VSS — Ground |
| Pin produk 74 | VDD — Positive supply |
| Pin produk 75 | RJ0 — PORTJ I/O bit 0 |
| Pin produk 76 | RJ1 — PORTJ I/O bit 1 |
| Pin produk 77 | RJ2 — PORTJ I/O bit 2 |
| Pin produk 78 | RJ3 — PORTJ I/O bit 3 |
| Pin produk 79 | RJ4 — PORTJ I/O bit 4 |
| Pin produk 80 | RJ5 — PORTJ I/O bit 5 |
Aplikasi Umum
PIC17LC766-08I/PT cocok untuk 6 aplikasis: Industrial Automation Controllers, Motor Control and Robotics, HVAC and Building Control, Embedded Data Acquisition Front End, User Interface and Display Controllers, Legacy Automotive Body and Chassis Modules.
Industrial Automation Controllers
The PIC17LC766-08I/PT's 66 I/O pins and 32KB OTP program memory suit it to industrial automation controllers that must drive many relays, read multiple sensors, and run a real-time control loop. Its 10-bit ADC reads analog process variables such as temperature, pressure, and flow directly. Operating from 2.5 V to 5.5 V lets it interface with both 3.3 V sensors and 5 V actuator drivers; the 121 ns single-cycle instruction supports deterministic PID loops at kilohertz rates. The industrial -40C to +85C grade covers factory-floor environments. Designers should add external watchdog supervisor ICs and follow Microchip's reference layout for noisy industrial settings.
Direkomendasikan
Motor Control and Robotics
The PIC17LC766-08I/PT drives stepper and brushed DC motors through its PWM modules and high I/O count, while the on-chip 8x8 hardware multiplier accelerates vector math for robotics kinematics. With 33 MHz clock input and 121 ns instruction cycle, the MCU can generate PWM at audio-bandwidth rates for smooth torque control. The 902 bytes of RAM is sufficient for small control loops but the OTP memory is best used for fixed motor-control firmware that does not require field updates. Pair the MCU with external H-bridge drivers and current-sense amplifiers; the 10-bit ADC samples motor current for closed-loop control.
Direkomendasikan
HVAC and Building Control
The PIC17LC766-08I/PT serves HVAC and building-automation controllers that drive dampers, fans, and read thermistor arrays. The 10-bit ADC and 66 I/O pins handle multiple temperature zones and switch contact closures; the RISC core runs scheduling algorithms in real time. Its 2.5 V minimum supply enables battery-backed thermostat designs. Industrial temperature grade meets building controller specifications. Migration note: PIC18F8520 is recommended for new designs because of flash memory and lower power modes.
Direkomendasikan
Embedded Data Acquisition Front End
The PIC17LC766-08I/PT functions as a data-acquisition front end that scans analog sensors through its 10-bit ADC and forwards packets via the on-chip USART. The 32KB OTP program memory stores calibration tables and protocol stacks; the 902 bytes of RAM buffers incoming samples between transmit events. Low-voltage operation (2.5 V) supports portable instrumentation. Engineers should add external precision references and consider 16-bit ADC companions when higher accuracy is required.
Direkomendasikan
User Interface and Display Controllers
The PIC17LC766-08I/PT's high I/O count lets it drive character LCD panels, keypads, and LED indicator arrays in industrial user-interface modules. The 121 ns instruction cycle is fast enough for screen-refresh loops and key debounce algorithms. Industrial temperature grade covers kiosk and panel-mount environments. Designers migrating to a flash-based MCU should consider PIC18F8520 to enable field firmware updates.
Direkomendasikan
Legacy Automotive Body and Chassis Modules
The PIC17LC766-08I/PT can drive non-safety automotive body modules such as seat controllers, mirror adjusters, and lighting controllers where AEC-Q100 qualification is not required. The 66 I/O lines interface with switch panels and small motor drivers; the 10-bit ADC reads potentiometer positions for analog controls. Industrial temperature grade covers most cabin environments but is not qualified for under-hood applications. For AEC-Q100 qualified designs, designers should select a different Microchip automotive part.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC17LC766-08I/PT — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC17LC766T-08I/PT | PIC17C766-16I/PT | PIC17C766T-33I/PT | PIC17C766T-16E/PT | PIC17C766-16E/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-80 (12x12 mm) | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same | TQFP-80 (12x12 mm) - same |
| Program Memory | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM | 32 KB OTP EPROM |
| Maximum Clock Input | 33 MHz (8 MHz instruction rate) | 33 MHz (8 MHz instruction) | 33 MHz (16 MHz instruction) | 33 MHz (33 MHz instruction) | 33 MHz (16 MHz instruction) | 33 MHz (16 MHz instruction) |
| Minimum Supply Voltage | 2.5 V | 2.5 V | 4.5 V | 4.5 V | 4.5 V | 4.5 V |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| RAM | 902 bytes | 902 bytes | 902 bytes | 902 bytes | 902 bytes | 902 bytes |
| I/O Pins | 66 | 66 | 66 | 66 | 66 | 66 |
| Lifecycle | Obsolete (last-time-buy) | Obsolete (last-time-buy) | Obsolete (last-time-buy) | Obsolete (last-time-buy) | Obsolete (last-time-buy) | Obsolete (last-time-buy) |
Diferensiator Kunci
- Low-voltage 2.5 V VDD minimum in a PIC17C76x pin-compatible footprint (vsPIC17C766-16I/PT)
- 66 I/O pins and 32KB OTP in a single 80-pin TQFP (vsPIC16LF877A-I/PT)
- Hardware 8x8 single-cycle multiplier (vsPIC18F8520)
Catatan Desain
Estimated: at VDD=5 V, 8 MHz instruction rate, and 66 I/O lines toggling simultaneously at 100 kHz, the PIC17LC766-08I/PT draws roughly 50-70 mA. Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the pin; add a bulk 10 uF tantalum near the supply entry. The 2.5 V minimum VDD enables battery-backed designs but verify that any 5 V peripherals are tolerant or level-shifted.
The 80-pin TQFP (12x12 mm, 0.5 mm pitch) demands a 4-layer PCB with continuous ground plane beneath the package. Route the 33 MHz oscillator traces symmetrically with short lengths and a guard ring tied to ground. Separate analog AVSS/AVDD from digital VSS/VDD with a single-point connection (star ground) to avoid ADC noise injection. Follow Microchip's PIC17C76x reference schematic for capacitor placement and decoupling topology.
Do not assume PIC17C76x code written for the 8 MHz "LC" speed grade runs unchanged on a 16 MHz or 33 MHz PIC17C76x variant; instruction-cycle timing changes. The OTP memory cannot be reprogrammed, so design code carefully and use a windowed CERDIP for prototyping. The 902-byte RAM is small; use bank-switching carefully to avoid corruption. The PIC18F8520 is the recommended migration path for new designs.
Informasi Konformitas
RoHS and lead-free per DigiKey listing. Not AEC-Q100 qualified - the part is industrial grade (-40C to +85C), not automotive grade. Microchip recommends PIC18F8520 for new designs.