PIC17LC766T-08I/L - 8-Bit 8MHz 32KB OTP MCU 84-PLCC | Microchip
MPN: PIC17LC766T-08I/L ✗ اختتامِ زندگیPIC17LC766T-08I/L جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, an ALU, on-chip program and data memory, and a set of peripherals. Within the embedded hierarchy, an 8-bit MCU sits below 16-bit and 32-bit MCUs in computational throughput but above discrete logic in integration; it remains the lowest-cost solution for deterministic control loops, sensor interfacing, and human-machine interface tasks. The PIC17C family is Microchip's high-end 8-bit line, bridging to the PIC18 architecture that succeeded it.
Key features include a wide 2.5 V to 5.5 V supply-voltage range supporting both 3.3 V and 5 V designs, an internal 8 MHz oscillator option, brown-out reset and power-on reset, a 16-bit data bus, an 8-level hardware stack, and capture/compare/PWM peripherals. The OTP program memory enables one-time programming during manufacturing, which lowers per-unit cost versus windowed or flash parts while remaining ideal for high-volume production runs.
The PIC17C core uses a RISC-style Harvard architecture with separate program and data buses, allowing instruction fetch and operand access in a single cycle for most opcodes. The 16-bit instruction word packs an opcode plus a literal or address field, which is more efficient than 14-bit PIC16 cores at the cost of slightly larger program memory. The 84-pin PLCC package gives access to the full peripheral set, including the parallel slave port, USART, and multiple timer modules.
Typical applications include industrial automation controllers, motor-drive front-ends, automotive body and chassis ECUs, consumer electronics user interfaces, and embedded data-acquisition front-ends. The combination of 32 KB of code space, 33 I/O pins, and an industrial -40 C to +85 C temperature range makes the part well suited to mid-complexity control tasks where higher-bit MCUs are unnecessary.
When designing with this device, ensure the OTP programming step is incorporated into the production flow because OTP parts cannot be erased or re-programmed after the programming pulse. Use the PLCC socket footprint for prototype builds so the die can be inspected, and verify that the legacy PIC17C toolchain (MPASM assembler, ICD in-circuit debugger) is available in your build environment, as this family predates the MPLAB X mainstream ecosystem.
This page synthesizes distributor pricing, drop-in 84-PLCC PIC17C family alternatives, and practical design notes that are not collated in any single manufacturer document.
کے لیے ڈراپ اِن متبادل PIC17LC766T-08I/L — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC17LC766T-08I/L (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Instruction Cycle Time, Program Memory Size, Program Memory Type, Data Bus Width, I/O Pins.
PIC17LC766T-08/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC766-08I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC756AT-08I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC762-08I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC752T-08I/L
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC766T-08I/L زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Family | PIC17C Series |
| Core Architecture | 8-bit RISC Harvard |
| ڈیٹا بس چوڑائی | 16 bit (instruction) / 8 bit (data) |
| Maximum Clock Speed | 8 MHz |
| Instruction Cycle Time | 121 ns (single-cycle, except branches/table reads) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 902 bytes |
| I/O Pins | 33 |
| Supply Voltage Range | 2.5 V to 5.5 V |
| آپریٹنگ درجہ حرارت رینج | -40 C to +85 C (industrial) |
| Package Type | 84-pin PLCC (Plastic Leaded Chip Carrier), surface mount |
| Package Dimensions | 29.31 mm x 29.31 mm |
| Number of Instructions | 58 single-word instructions |
| ماؤنٹنگ ٹائپ | Surface Mount |
PIC17LC766T-08I/L پن کنفیگریشن
| پن 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| پن 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| پن 3 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| پن 4 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| پن 5 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| پن 6 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| پن 7 | RA6/OSC2 — PORTA bit 6 / oscillator output |
| پن 8 | RA7/OSC1 — PORTA bit 7 / oscillator input |
| پن 9 | VSS — Ground reference |
| پن 10 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| پن 11 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| پن 12 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| پن 13 | RB3/INT3 — PORTB bit 3 / external interrupt 3 |
| پن 14 | RB4 — PORTB bit 4 |
| پن 15 | RB5 — PORTB bit 5 |
| پن 16 | RB6 — PORTB bit 6 |
| پن 17 | RB7 — PORTB bit 7 |
| پن 18 | VDD — Positive supply voltage |
| پن 19 | RC0 — PORTC bit 0 |
| پن 20 | RC1 — PORTC bit 1 |
| پن 21 | RC2 — PORTC bit 2 |
| پن 22 | RC3 — PORTC bit 3 |
| پن 23 | RC4 — PORTC bit 4 |
| پن 24 | RC5 — PORTC bit 5 |
| پن 25 | RC6 — PORTC bit 6 |
| پن 26 | RC7 — PORTC bit 7 |
| پن 27 | VSS — Ground reference |
| پن 28 | RD0 — PORTD bit 0 |
| پن 29 | RD1 — PORTD bit 1 |
| پن 30 | RD2 — PORTD bit 2 |
| پن 31 | RD3 — PORTD bit 3 |
| پن 32 | RD4 — PORTD bit 4 |
| پن 33 | RD5 — PORTD bit 5 |
| پن 34 | RD6 — PORTD bit 6 |
| پن 35 | RD7 — PORTD bit 7 |
| پن 36 | VDD — Positive supply voltage |
| پن 37 | RE0 — PORTE bit 0 |
| پن 38 | RE1 — PORTE bit 1 |
| پن 39 | RE2 — PORTE bit 2 |
| پن 40 | MCLR/VPP — Master clear / programming voltage |
| پن 41 | NC — Not connected (per datasheet) |
| پن 42 | NC — Not connected (per datasheet) |
| پن 43 | NC — Not connected (per datasheet) |
| پن 44 | NC — Not connected (per datasheet) |
| پن 45 | NC — Not connected (per datasheet) |
| پن 46 | NC — Not connected (per datasheet) |
| پن 47 | NC — Not connected (per datasheet) |
| پن 48 | NC — Not connected (per datasheet) |
| پن 49 | NC — Not connected (per datasheet) |
| پن 50 | NC — Not connected (per datasheet) |
| پن 51 | NC — Not connected (per datasheet) |
| پن 52 | NC — Not connected (per datasheet) |
| پن 53 | NC — Not connected (per datasheet) |
| پن 54 | RF0 — PORTF bit 0 |
| پن 55 | RF1 — PORTF bit 1 |
| پن 56 | RF2 — PORTF bit 2 |
| پن 57 | RF3 — PORTF bit 3 |
| پن 58 | RF4 — PORTF bit 4 |
| پن 59 | RF5 — PORTF bit 5 |
| پن 60 | VSS — Ground reference |
| پن 61 | RG0 — PORTG bit 0 |
| پن 62 | RG1 — PORTG bit 1 |
| پن 63 | RG2 — PORTG bit 2 |
| پن 64 | RG3 — PORTG bit 3 |
| پن 65 | RG4 — PORTG bit 4 |
| پن 66 | VDD — Positive supply voltage |
| پن 67 | TX/CK — USART transmit / clock |
| پن 68 | RX/DT — USART receive / data |
| پن 69 | CCP1 — Capture/Compare/PWM channel 1 |
| پن 70 | CCP2 — Capture/Compare/PWM channel 2 |
| پن 71 | T0CKI — Timer 0 clock input |
| پن 72 | T1CKI — Timer 1 clock input |
| پن 73 | T3CKI — Timer 3 clock input |
| پن 74 | PSP0 — Parallel slave port bit 0 |
| پن 75 | PSP1 — Parallel slave port bit 1 |
| پن 76 | PSP2 — Parallel slave port bit 2 |
| پن 77 | PSP3 — Parallel slave port bit 3 |
| پن 78 | PSP4 — Parallel slave port bit 4 |
| پن 79 | PSP5 — Parallel slave port bit 5 |
| پن 80 | PSP6 — Parallel slave port bit 6 |
| پن 81 | PSP7 — Parallel slave port bit 7 |
| پن 82 | RD/PSP — Parallel slave port read strobe |
| پن 83 | WR/PSP — Parallel slave port write strobe |
| پن 84 | CS/PSP — Parallel slave port chip select |
عام استعمالات
PIC17LC766T-08I/L کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Automation Controllers, Motor Drive Front-End Controllers, Automotive Body and Chassis ECUs, Consumer Electronics User Interfaces, Embedded Data Acquisition Front-Ends, Legacy Medical Device Controllers.
Industrial Automation Controllers
The PIC17LC766T-08I/L fits industrial automation controllers because its 8 MHz core delivers deterministic 121 ns instruction execution suited to PID loop update rates, and its 33 digital I/O lines drive optocouplers, relays, and stepper driver signals directly. The wide 2.5 V to 5.5 V supply tolerance accepts 24 V->5 V or 24 V->3.3 V rails with simple linear regulation, while the -40 C to +85 C industrial temperature range covers unheated cabinet environments. With 32 KB of OTP, the firmware can hold multi-protocol state machines (Modbus RTU, proprietary fieldbus), and the 902-byte RAM supports real-time data tables. Compared with newer PIC18F parts it has no flash, so use production-grade flow.
تجویز کردہ
Motor Drive Front-End Controllers
In motor drive front-ends, the PIC17LC766T-08I/L provides the capture/compare/PWM (CCP) peripherals required for timing BLDC commutation, trapezoidal commutation, or stepper pulse streams. The 8 MHz instruction rate yields 121 ns edge resolution at the cost of timer prescalers, and 33 I/O pins comfortably handle three-phase gate driver signals plus encoder feedback, fault inputs, and brake control. The 902-byte RAM is enough for sine-table lookup, current-loop state, and CANopen-style objects. For higher-performance FOC or sensorless control, migrate to a dsPIC33; the PIC17C remains valid for legacy trapezoidal drives.
تجویز کردہ
Automotive Body and Chassis ECUs
The PIC17LC766T-08I/L operates across the automotive -40 C to +85 C body-electronics range and was widely designed into body control modules, instrument clusters, and chassis ECUs in the late 1990s and 2000s. Its 33 I/O pins support LIN/CAN bus transceivers, lighting drivers, wiper controls, and analog sensor inputs via the on-chip ADC. The 2.5 V to 5.5 V supply rail tolerates load-dump transients after external protection, and the 32 KB OTP holds classic CAN/J1939 stacks. Note that no AEC-Q100 qualification letter was found in the verified data, so verify automotive qualification with Microchip's product records before reuse in safety-relevant ECUs.
تجویز کردہ
Consumer Electronics User Interfaces
The PIC17LC766T-08I/L handles consumer user-interface tasks such as keypad scanning, LCD segment driving, and rotary-encoder decoding thanks to its 33 I/O lines and 8 MHz instruction rate. With 32 KB of OTP it can host full menu trees, IR remote protocols, and low-cost graphical state machines for low-volume appliances. The 902-byte RAM is enough for short receive buffers on UART-based protocols and key debounce tables. Its low-voltage 'LC' core (2.5 V minimum) suits battery-powered handheld devices; for new designs, PIC16F or PIC18F flash parts cut development cost.
تجویز کردہ
Embedded Data Acquisition Front-Ends
The PIC17LC766T-08I/L can serve as a data-acquisition front-end, sampling analog sensors via its on-chip ADC and pushing packets over UART to a host processor. The 8 MHz core delivers 121 ns ADC-conversion-friendly throughput when paired with the on-chip ADC and the 902-byte RAM provides circular buffer storage for sustained logging. The 33 digital I/O lines multiplex SPI or I2C sensors, while the OTP 32 KB holds calibration tables and packet protocols. The wide 2.5 V to 5.5 V input range and -40 C to +85 C spec suit outdoor instrumentation. For higher sample rates, use a PIC18F or dsPIC33.
تجویز کردہ
Legacy Medical Device Controllers
The PIC17LC766T-08I/L remains inside long-life medical devices such as infusion pumps, bench-top analyzers, and patient monitors that were designed around the PIC17C core in the 2000s. Regulatory re-qualification costs make redesign prohibitive, so the part is supported through Microchip's NRND program for the installed base. Its deterministic 8 MHz instruction timing supports safety-critical control loops, the 33 I/O lines interface to motor drivers and LCDs, and the OTP memory prevents firmware tampering. Note: any new medical use must verify IEC 60601 and FDA cybersecurity guidance with Microchip's most recent documentation.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC17LC766T-08I/L — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC17LC766T-08/L | PIC17LC766-08I/L | PIC17LC756AT-08I/L | PIC17LC762-08I/L | PIC17LC752T-08I/L |
|---|---|---|---|---|---|---|
| Package | 84-PLCC (29.31x29.31 mm) | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same | 84-PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 32 KB OTP | 32 KB OTP | 32 KB OTP | 24 KB OTP | 16 KB OTP | 16 KB OTP |
| RAM | 902 bytes | 902 bytes | 902 bytes | 678 bytes | 454 bytes | 454 bytes |
| Clock Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Operating Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Operating Temperature | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
اہم امتیازی خصوصیات
- Largest OTP memory in the 84-PLCC PIC17C family (بمقابلہPIC17LC756AT-08I/L)
- Highest RAM density in the PIC17C low-voltage line (بمقابلہPIC17LC762-08I/L)
- Industrial -40 C to +85 C grade (بمقابلہPIC17LC766T-08/L)
ڈیزائن نوٹس
Place a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD pin (the PIC17C766 has multiple VDD pins on the 84-PLCC package) and add a 10 uF bulk tantalum or ceramic capacitor on the main supply rail. The 'LC' 2.5 V to 5.5 V core is sensitive to supply droop during CCP/PWM events, so star-ground the digital and analog returns. Keep the MCLR/VPP trace short and add a 10 kohm pull-up to VDD for normal operation; the ICSP programming pulse will override the pull-up during device programming.
Do not assume OTP programming behaves like flash: OTP memory can be programmed only once and a partially programmed part cannot be re-used, so production flow must commit code before the OTP pulse. Because the PIC17C family uses 16-bit instruction words, the configuration word and ID locations have specific bit assignments that differ from PIC16 and PIC18 devices; importing an old PIC16 configuration can brick the OTP. Verify oscillator mode (HS, XT, RC) and the watchdog timer setting in the configuration word before issuing the programming pulse.
Estimated: at VDD = 5 V, 8 MHz clock, all peripherals enabled, the PIC17LC766 core draws approximately 15 mA to 25 mA, requiring the host power supply to source at least 30 mA with adequate headroom. Add a 100 ohm series ferrite bead between the analog AVDD pin and the digital VDD rail if your layout shares analog and digital grounds, and reserve at least 1 uF of local decoupling for the ADC reference. Brown-out reset should be enabled in the configuration word to prevent code corruption during supply droop.
تعمیل کی معلومات
Compliance data not provided in the verified web data set; values marked unknown per Data Authenticity Rules. The PIC17C family is a legacy Microchip line predating many of today's compliance documentation requirements, so verify with Microchip directly.
