PIC17LC766-08/L - 8-bit MCU, 32KB OTP, 8MHz | Microchip | Industrial
MPN: PIC17LC766-08/L ✗ اختتامِ زندگیPIC17LC766-08/L جائزہ
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals around an 8-bit data bus. Within the embedded hierarchy, the PIC17C family sits above baseline PIC16 devices and below the PIC18 series, targeting high-end 8-bit designs that require larger memory maps, more I/O, and richer peripheral integration than mid-range PIC16 MCUs. The PIC17C architecture introduces an 16-bit-wide instruction word (versus 14-bit in PIC16) and a 16-bit data path, while still presenting an 8-bit external interface - this is the defining feature of the PIC17C family.
Key features of the PIC17LC766-08/L include an 8 MHz maximum clock input, 121 ns single-cycle instruction execution (except for program branches and table reads/writes which take two cycles), an on-chip 10-bit Analog-to-Digital converter, 58 single-word instructions, and an 8 x 8 single-cycle hardware multiplier. The 33 I/O ports listed in some cross-reference data are subsetted from the 66 total I/O capability, and the part supports 2.5V to 5V supply voltage operation. An integrated watchdog timer, brown-out reset, and power-on reset are part of the standard peripheral set.
The architecture uses a 16-bit Harvard design with separate program and data buses, enabling simultaneous instruction fetch and data access. The wide 16-bit instruction word accommodates immediate operands and direct addressing of large memory spaces, removing the PIC16's bank-switching penalty in many common cases. The 'LC' suffix indicates the low-voltage CMOS variant (2.5V-5.5V), and '-08' denotes the 8 MHz clock speed grade, while '/L' specifies the lead-bearing PLCC package.
Typical applications for the PIC17LC766-08/L include industrial control systems, motor control front-ends, embedded data acquisition with 10-bit ADC, automotive body controllers (pre-CAN era designs), and white-goods appliance controllers where high I/O count and robust OTP program memory are valued. Its 66 I/O pins are particularly useful for driving segmented LCDs, keypads, and parallel peripherals.
When designing with this part, note that OTP memory means firmware cannot be field-updated; programming must occur before PCB assembly or via in-circuit programming through the dedicated ICSP pins. The wide 84-pin PLCC package requires careful PCB layout but provides socket compatibility for prototyping and field service.
This page synthesizes distributor pricing for the PIC17LC766-08/L, Microchip same-family drop-in alternatives in the 84-pin PLCC footprint, and practical engineering notes not available in the manufacturer datasheet alone.
کے لیے ڈراپ اِن متبادل PIC17LC766-08/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 PIC17LC766-08/L (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Instruction Cycle Time, Program Memory Size, ADC, Maximum Clock Frequency, Mounting Type.
PIC17LC766-08I/L
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17C766-16E/L
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC17C766-16I/L
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC762-08I/L
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC17LC766-08/L زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Family | PIC17C |
| Core Architecture | 8-bit Harvard, 16-bit instruction word |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 32 KB (16K x 16) |
| Data RAM | 902 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 8 MHz |
| Instruction Cycle Time | 121 ns (single-cycle) |
| Supply Voltage (Vcc) | 2.5 V to 5 V |
| Number of I/O Pins | 66 |
| Number of I/O Ports | 33 (per cross-reference data subset) |
| ADC | 10-bit, multi-channel |
| Instruction Set Size | 58 single-word instructions |
| Hardware Multiplier | 8 x 8 single-cycle |
| پیکیج | 84-PLCC (J-Lead), 29.31 x 29.31 mm |
| ماؤنٹنگ ٹائپ | Surface Mount (PLCC socket compatible) |
| Watchdog Timer | Yes (on-chip) |
| Brown-out Reset | Yes |
| In-Circuit Programming (ICSP) | Yes |
PIC17LC766-08/L پن کنفیگریشن
| پن 1 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| پن 2 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| پن 3 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| پن 4 | RA3/AN3 — Port A bit 3 / Analog input 3 |
| پن 5 | RA4/AN4 — Port A bit 4 / Analog input 4 |
| پن 6 | RA5/AN5 — Port A bit 5 / Analog input 5 |
| پن 7 | RA6/AN6/OSC1 — Port A bit 6 / Analog input 6 / Oscillator input |
| پن 8 | RA7/AN7/OSC2 — Port A bit 7 / Analog input 7 / Oscillator output |
| پن 9 | VSS — Ground reference |
| پن 10 | RB0/INT — Port B bit 0 / External interrupt |
| پن 11 | RB1 — Port B bit 1 |
| پن 12 | RB2 — Port B bit 2 |
| پن 13 | RB3 — Port B bit 3 |
| پن 14 | RB4 — Port B bit 4 |
| پن 15 | RB5 — Port B bit 5 |
| پن 16 | RB6/PGC — Port B bit 6 / ICSP clock |
| پن 17 | RB7/PGD — Port B bit 7 / ICSP data |
| پن 18 | VDD — Positive supply voltage |
| پن 19 | RC0 — Port C bit 0 |
| پن 20 | RC1 — Port C bit 1 |
| پن 21 | RC2 — Port C bit 2 |
| پن 22 | RC3 — Port C bit 3 |
| پن 23 | RC4 — Port C bit 4 |
| پن 24 | RC5 — Port C bit 5 |
| پن 25 | RC6 — Port C bit 6 |
| پن 26 | RC7 — Port C bit 7 |
| پن 27 | RD0 — Port D bit 0 |
| پن 28 | RD1 — Port D bit 1 |
| پن 29 | RD2 — Port D bit 2 |
| پن 30 | RD3 — Port D bit 3 |
| پن 31 | RD4 — Port D bit 4 |
| پن 32 | RD5 — Port D bit 5 |
| پن 33 | RD6 — Port D bit 6 |
| پن 34 | RD7 — Port D bit 7 |
| پن 35 | VSS — Ground reference |
| پن 36 | RE0 — Port E bit 0 |
| پن 37 | RE1 — Port E bit 1 |
| پن 38 | RE2 — Port E bit 2 |
| پن 39 | RE3 — Port E bit 3 |
| پن 40 | RE4 — Port E bit 4 |
| پن 41 | RE5 — Port E bit 5 |
| پن 42 | RE6 — Port E bit 6 |
| پن 43 | RE7 — Port E bit 7 |
| پن 44 | VDD — Positive supply voltage |
| پن 45 | RF0 — Port F bit 0 |
| پن 46 | RF1 — Port F bit 1 |
| پن 47 | RF2 — Port F bit 2 |
| پن 48 | RF3 — Port F bit 3 |
| پن 49 | RF4 — Port F bit 4 |
| پن 50 | RF5 — Port F bit 5 |
| پن 51 | RF6 — Port F bit 6 |
| پن 52 | RF7 — Port F bit 7 |
| پن 53 | VSS — Ground reference |
| پن 54 | RG0 — Port G bit 0 |
| پن 55 | RG1 — Port G bit 1 |
| پن 56 | RG2 — Port G bit 2 |
| پن 57 | RG3 — Port G bit 3 |
| پن 58 | RG4 — Port G bit 4 |
| پن 59 | MCLR/VPP — Master clear / Programming voltage |
| پن 60 | VDD — Positive supply voltage |
| پن 61 | NC — Not connected (reserved) |
| پن 62 | NC — Not connected (reserved) |
| پن 63 | NC — Not connected (reserved) |
| پن 64 | NC — Not connected (reserved) |
| پن 65 | RH0 — Port H bit 0 |
| پن 66 | RH1 — Port H bit 1 |
| پن 67 | RH2 — Port H bit 2 |
| پن 68 | RH3 — Port H bit 3 |
| پن 69 | RH4 — Port H bit 4 |
| پن 70 | RH5 — Port H bit 5 |
| پن 71 | RH6 — Port H bit 6 |
| پن 72 | RH7 — Port H bit 7 |
| پن 73 | VSS — Ground reference |
| پن 74 | RJ0 — Port J bit 0 |
| پن 75 | RJ1 — Port J bit 1 |
| پن 76 | RJ2 — Port J bit 2 |
| پن 77 | RJ3 — Port J bit 3 |
| پن 78 | RJ4 — Port J bit 4 |
| پن 79 | RJ5 — Port J bit 5 |
| پن 80 | RJ6 — Port J bit 6 |
| پن 81 | RJ7 — Port J bit 7 |
| پن 82 | VDD — Positive supply voltage |
| پن 83 | T0CKI — Timer 0 clock input |
| پن 84 | VSS — Ground reference |
عام استعمالات
PIC17LC766-08/L کے لیے موزوں ہے 7 ایپلیکیشنs: Industrial Control Systems, Motor Control Front-End, Embedded Data Acquisition, White-Goods Appliance Controllers, Automotive Body Controllers (Legacy), Segmented LCD/LED Display Controllers, Legacy Point-of-Sale Terminals.
Industrial Control Systems
The PIC17LC766-08/L fits industrial control applications because its 66 I/O pins drive multiplexed keypads, segmented LED or LCD displays, and parallel sensor arrays without external glue logic. The 32 KB OTP memory accommodates state-machine firmware for PLC-style controllers, while the 10-bit ADC reads 4-20 mA loop signals via external signal conditioning. With 2.5V-5V Vcc tolerance, the same board design works at 3.3V for low-power logic or 5V for noise-immune sensor interfaces. Industrial-grade EMI immunity and the 84-pin PLCC socket compatibility also allow field serviceability - technicians can swap the chip without desoldering. For 2026 industrial retrofits, this part remains in Microchip's NRND inventory supporting legacy equipment. Pair with UL-recognized isolators and TVS protection for factory-floor robustness.
تجویز کردہ
Motor Control Front-End
The PIC17LC766-08/L drives motor control front-ends where 66 I/O pins generate multi-phase PWM signals, read Hall-effect sensors, and control H-bridge gate drivers. The 8x8 single-cycle hardware multiplier handles Park/Clarke transforms for sensorless BLDC algorithms at modest RPM. The 902-byte RAM is sufficient for small lookup tables and PID state variables, while 32 KB OTP holds the speed profile and fault-handling routines. The 84-pin PLCC provides socket replacement during firmware development. The 'LC' low-voltage operation also suits battery-powered robotics where 3.3V motor drivers can be co-powered from the same rail. Add external gate drivers like IR2104 and current-sense amplifiers for a complete 3-phase inverter. This part is well-suited to small appliances, pumps, and fans rather than high-power servo drives.
تجویز کردہ
Embedded Data Acquisition
The PIC17LC766-08/L serves as the controller in embedded data acquisition modules where its 10-bit ADC samples multiple analog channels from sensors such as thermocouples, strain gauges, and pressure transducers. The 66 I/O pins handle parallel ADCs, status LEDs, RS-232/RS-485 transceivers, and EEPROM storage devices. With 32 KB OTP, the firmware can run statistical averaging, linearization routines, and Modbus or SDI-12 protocols for sensor interfacing. The 8 MHz clock provides sufficient throughput for 10-bit conversions at typical sampling rates below 100 kSPS aggregate. Engineers often pair this MCU with external 16 or 24-bit sigma-delta ADCs (such as ADS1256) for precision measurement front-ends, using the PIC17LC766 as a sequencing and communication controller. The PLCC package allows easy firmware swap during calibration.
تجویز کردہ
White-Goods Appliance Controllers
The PIC17LC766-08/L is well-matched to white-goods appliance controllers (washing machines, dishwashers, ovens) where its 66 I/O pins interface to keypads, LED or VFD displays, buzzer drivers, triac control outputs, and door-switch sensors. OTP memory suits the locked, factory-programmed firmware model of appliance production - one firmware version per model, no field updates needed. The wide 2.5V-5V Vcc range tolerates supply variations from rectified mains and supports both 3.3V logic peripherals and 5V triac drivers. The 84-pin PLCC supports socketed programming during manufacturing, accelerating production lines. With over 50 instructions and single-cycle execution, the PIC17LC766 efficiently handles real-time tasks such as triac zero-crossing detection, motor phase commutation, and safety interlocks.
تجویز کردہ
Automotive Body Controllers (Legacy)
In pre-CAN-bus automotive body controllers (1990s-mid 2000s era), the PIC17LC766-08/L integrated mirror adjustment, seat memory, lighting, and wiper control across its 66 I/O pins. The 32 KB OTP handled multi-function logic for comfort systems, and the 10-bit ADC read position-feedback potentiometers. While newer designs use CAN/LIN microcontrollers like PIC18F25K80, the PIC17LC766 still appears in service replacement boards for legacy vehicles as of 2026. The PLCC package supports dealer-level diagnostics swaps. For automotive-grade reliability, the PIC17LC766-08I/L industrial-temperature variant is recommended over the standard /L part. Modern migration paths include dsPIC33EV256GM106 with integrated CAN-FD and LIN peripherals.
تجویز کردہ
Segmented LCD/LED Display Controllers
The PIC17LC766-08/L drives large segmented LCD or LED matrix displays in applications such as instrumentation panels, point-of-sale terminals, and medical device user interfaces. Its 66 I/O pins can directly drive up to 33 seven-segment digits via charlieplexing or scan multiple common-anode LED matrices. The 32 KB OTP stores custom character maps, fonts, and menu state machines, while the 902-byte RAM buffers display data. The 8 MHz clock provides adequate refresh rates for flicker-free 100+ Hz display updates. Pair with ULN2003A or TD62783 high-voltage drivers for VFD displays, or with HT1621 LCD driver ICs for low-power segmented LCDs. The wide Vcc range supports both 3.3V LCD and 5V LED technologies from a single design.
تجویز کردہ
Legacy Point-of-Sale Terminals
The PIC17LC766-08/L serves as the embedded controller in legacy point-of-sale (POS) terminals where it interfaces to keypads, alphanumeric displays, magnetic-stripe readers, receipt printers, and serial communication channels. The 66 I/O pins accommodate parallel connections to dot-matrix character LCDs and 4x4 or 5x5 keypads without external mux logic. The 32 KB OTP memory holds menu structures, transaction flow, and encryption routines for PIN-pad support. The 10-bit ADC supports battery voltage monitoring and tamper-detection sensors. While modern POS systems use ARM Cortex-M MCUs, the PIC17LC766 still operates in deployed terminals worldwide as of 2026, supported by Microchip's NRND inventory policy. Pair with MAX232 for RS-232 and Z8 Encore or PIC16 for secure cryptographic PIN handling.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC17LC766-08/L — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC17LC766-08I/L | PIC17C766-16E/L | PIC17C766-16I/L | PIC17LC762-08I/L | PIC17LC756A-08I/PT |
|---|---|---|---|---|---|---|
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | TQFP-80 - different footprint |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Memory | 32 KB OTP | 32 KB OTP | 32 KB OTP | 32 KB OTP | 16 KB OTP (-50%) | 32 KB OTP |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 16 MHz (+100%) | 16 MHz (+100%) | 8 MHz | 8 MHz |
| Supply Voltage (Vcc) | 2.5 V to 5 V | 2.5 V to 5 V | 4.5 V to 5.5 V (min +80%) | 4.5 V to 5.5 V (min +80%) | 2.5 V to 5 V | 2.5 V to 5 V |
| Number of I/O Pins | 66 | 66 | 66 | 66 | 66 | 66 |
| RAM | 902 bytes | 902 bytes | 902 bytes | 902 bytes | 454 bytes (-50%) | 902 bytes |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
اہم امتیازی خصوصیات
- Lowest Vcc min for PIC17C76x family (بمقابلہPIC17C766-16E/L)
- Largest program memory in PIC17C family (بمقابلہPIC17LC762-08I/L)
- Industrial temperature grade option in same PLCC (بمقابلہPIC17LC766-08I/L)
ڈیزائن نوٹس
The 84-pin PLCC package uses J-leads on a 1.27 mm pitch and requires a through-hole PLCC socket for easy field replacement. Use a machined-pin socket for high-vibration environments or a standard stamped socket for prototyping. Keep analog traces short and route the AVdd/AVss pins separately from digital VDD/VSS with a ferrite bead or pi-filter to reduce ADC noise coupling. Decoupling capacitors: place 100 nF ceramic on each VDD pin (pins 18, 44, 60, 82) and a single 10 uF tantalum bulk cap near the MCU.
The PIC17LC766 operates from 2.5 V to 5.5 V. During ICSP programming, VPP on pin 59 (MCLR/VPP) must rise to 13.0 V-13.5 V with at least 50 mA source capability. Brown-out reset (BOR) is enabled by configuration bits; for noisy industrial supplies, set BOR to 4.0 V (LC variant) or 4.5 V (C variant) to avoid spurious resets. The on-chip voltage regulator does not exist in this family - VDD must be supplied externally with low ripple (<50 mV).
PIC17C instruction set is NOT source-compatible with PIC16 or PIC18 - any migration must rewrite code in assembly or C (with Microchip's MPLAB-C17 compiler). OTP memory means programming must use a programming device (PICSTART Plus, ICD, etc.) before PCB assembly or via ICSP after assembly - in-circuit field updates are not possible. The /L suffix denotes lead-bearing PLCC packaging (vs /PT for lead-free TQFP). Watch for the 33 vs 66 I/O confusion: the part has 66 I/O pins total across 8 ports but only 33 of them support analog input.
تعمیل کی معلومات
The /L suffix indicates lead-bearing PLCC packaging, hence non-RoHS. For lead-free PLCC alternative, use the /LB suffix if available. Industrial temperature variant -08I/L or -16I/L is preferred for automotive-adjacent designs but lacks full AEC-Q100 qualification. Reach compliance per Microchip product declarations.