PIC17LC762T-08/L - 8-Bit 8MHz 16KB OTP MCU | Microchip 84-PLCC
MPN: PIC17LC762T-08/L ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $14.5 | $14.50 |
| 10 | $13.2 | $132.00 |
| 100 | $11.95 | $1,195.00 |
| 500 | $10.85 | $5,425.00 |
| 1,000 | $9.75 | $9,750.00 |
PIC17LC762T-08/L Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, RAM, non-volatile program memory, and integrated peripherals. Within the broader taxonomy, the PIC17LC762 belongs to the 8-bit MCU category (microcontroller -> 8-bit MCU -> RISC MCU -> PIC17C family -> OTP variant), a class that targets cost-sensitive embedded control where deterministic single-cycle execution and rich peripheral integration outweigh the need for higher bit width. The PIC17C line is the highest-performance 8-bit family ever shipped by Microchip, predating the dsPIC/PIC24 transition and intended for math-intensive control loops.
Key features of the PIC17LC762 include 33 digital I/O lines, a 16-channel 10-bit analog-to-digital converter, three on-chip timer/counters, a Capture/Compare/PWM (CCP) module, and a hardware 8-bit multiplier that executes MULWF in a single instruction cycle. Communication peripherals cover I2C (master/slave), SPI (master/slave), and a UART/USART with on-chip baud-rate generator. On-chip reliability features include Brown-Out Detect/Reset (BOR), Power-On Reset (POR), and a Watchdog Timer (WDT) with its own on-chip RC oscillator.
The supply voltage range is 2.5 V to 5.0 V, making the device compatible with both 3.3 V and 5 V system rails. The 'LC' suffix indicates the low-voltage CMOS process variant of the PIC17C762, while the '-08' speed grade designates the 8 MHz maximum clock. The 'T' suffix denotes tape-and-reel packaging, and '/L' identifies the PLCC lead form. The 84-PLCC footprint is JEDEC-standard, allowing socket-mount or hand-solder rework on legacy through-hole boards and SMT adapters.
Typical applications include industrial automation controllers, motor-drive front-end logic (BLDC and stepper), automotive body and chassis subsystems, HVAC control boards, and consumer white-goods user-interface modules. The 16 analog inputs are well-suited to multi-zone sensor aggregation (temperature, pressure, level), while the PWM and capture channels handle closed-loop feedback without an external timer IC.
When designing with the PIC17LC762, pay attention to the OTP memory constraint: firmware must be fully validated in-circuit-emulation (ICE) or one-time-programmable PROM emulator form before final programming, because OTP parts cannot be erased. Use a 0.1 uF decoupling capacitor on each VDD/VSS pair within 5 mm of the pin, and reserve one I/O line as a firmware-revision jumper for production traceability.
This page synthesizes distributor pricing, drop-in Microchip family equivalents, and practical design notes not collected in any single manufacturer datasheet.
Drop-in alternatives for PIC17LC762T-08/L — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC17LC762T-08/L (same form factor and footprint) — differing in Instruction Cycle Time, Program Memory Size, Maximum Clock Frequency, A/D Converter, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC17LC762-08I/L
✅ Drop-In✓ In Stock
$6.5 / Unit
View Datasheet →PIC17LC762-08/L
✅ Drop-In📋 Reference alternative (not in catalog)
PIC17LC762-08/PT
✅ Drop-In✓ In Stock
$7.5 / Unit
View Datasheet →PIC17C762T-33/L
✅ Drop-In✓ In Stock
$15.4 / Unit
View Datasheet →PIC17LC762T-08/L Maximum Ratings & Electrical Characteristics
| Family | PIC17C |
| Core | 8-bit RISC |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 16 KB (8K x 16) |
| RAM Size | 678 x 8 bytes |
| Maximum Clock Frequency | 8 MHz |
| Instruction Cycle Time | 121 ns (single-cycle, except branches) |
| Instruction Set Size | 58 single-word instructions |
| Supply Voltage Range | 2.5 V to 5.0 V |
| I/O Pins | 33 |
| ADC | 10-bit, 16 channels |
| Communication Interfaces | I2C, SPI, UART/USART |
| Timers | 3 x 8/16-bit timer/counter |
| PWM / CCP | Capture/Compare/PWM module |
| On-chip Multiplier | 8-bit hardware MULWF, single-cycle |
| Reset / Protection | Brown-Out Reset, Power-On Reset, Watchdog Timer |
| Package | 84-PLCC (J-Lead), 29.31 x 29.31 mm |
| Mounting Type | Surface Mount (PLCC socket compatible) |
| Operating Temperature | 0 C to +70 C (Commercial) |
PIC17LC762T-08/L Pin Configuration
| Pin 1 | RA0/AN0 — PORTA bit 0 / ADC analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / ADC analog input 1 |
| Pin 3 | RA2/AN2 — PORTA bit 2 / ADC analog input 2 |
| Pin 4 | RA3/AN3 — PORTA bit 3 / ADC analog input 3 |
| Pin 5 | RA4/AN4 — PORTA bit 4 / ADC analog input 4 |
| Pin 6 | RA5/AN5 — PORTA bit 5 / ADC analog input 5 |
| Pin 7 | RA6/AN6 — PORTA bit 6 / ADC analog input 6 |
| Pin 8 | RA7/AN7 — PORTA bit 7 / ADC analog input 7 |
| Pin 9 | RB0/INT0 — PORTB bit 0 / External interrupt 0 |
| Pin 10 | RB1/INT1 — PORTB bit 1 / External interrupt 1 |
| Pin 11 | RB2/INT2 — PORTB bit 2 / External interrupt 2 |
| Pin 12 | RB3 — PORTB bit 3 |
| Pin 13 | RB4 — PORTB bit 4 |
| Pin 14 | RB5 — PORTB bit 5 |
| Pin 15 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 16 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 17 | RC0 — PORTC bit 0 |
| Pin 18 | RC1 — PORTC bit 1 |
| Pin 19 | RC2 — PORTC bit 2 |
| Pin 20 | RC3/SCL — PORTC bit 3 / I2C clock |
| Pin 21 | OSC1/CLKI — Crystal oscillator input / external clock |
| Pin 22 | OSC2/CLKO — Crystal oscillator output |
| Pin 23 | RC4/SDA — PORTC bit 4 / I2C data |
| Pin 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 25 | RC6/SDI — PORTC bit 6 / SPI data in |
| Pin 26 | RC7/SCK — PORTC bit 7 / SPI clock |
| Pin 27 | RD0 — PORTD bit 0 |
| Pin 28 | RD1 — PORTD bit 1 |
| Pin 29 | RD2 — PORTD bit 2 |
| Pin 30 | RD3 — PORTD bit 3 |
| Pin 31 | RD4 — PORTD bit 4 |
| Pin 32 | RD5 — PORTD bit 5 |
| Pin 33 | VSS — Ground reference |
| Pin 34 | VDD — Positive supply (2.5 V to 5.0 V) |
| Pin 35 | RD6 — PORTD bit 6 |
| Pin 36 | RD7 — PORTD bit 7 |
| Pin 37 | RE0/AN8 — PORTE bit 0 / ADC analog input 8 |
| Pin 38 | RE1/AN9 — PORTE bit 1 / ADC analog input 9 |
| Pin 39 | RE2/AN10 — PORTE bit 2 / ADC analog input 10 |
| Pin 40 | RE3/AN11 — PORTE bit 3 / ADC analog input 11 |
| Pin 41 | RE4/AN12 — PORTE bit 4 / ADC analog input 12 |
| Pin 42 | RE5/AN13 — PORTE bit 5 / ADC analog input 13 |
| Pin 43 | RE6/AN14 — PORTE bit 6 / ADC analog input 14 |
| Pin 44 | RE7/AN15 — PORTE bit 7 / ADC analog input 15 |
| Pin 45 | RF0 — PORTF bit 0 |
| Pin 46 | RF1 — PORTF bit 1 |
| Pin 47 | RF2 — PORTF bit 2 |
| Pin 48 | RF3 — PORTF bit 3 |
| Pin 49 | RF4 — PORTF bit 4 |
| Pin 50 | RF5 — PORTF bit 5 |
| Pin 51 | RF6 — PORTF bit 6 |
| Pin 52 | RF7 — PORTF bit 7 |
| Pin 53 | RG0 — PORTG bit 0 |
| Pin 54 | RG1 — PORTG bit 1 |
| Pin 55 | RG2 — PORTG bit 2 |
| Pin 56 | RG3 — PORTG bit 3 |
| Pin 57 | RG4 — PORTG bit 4 |
| Pin 58 | VSS — Ground reference (second) |
| Pin 59 | VDD — Positive supply (second) |
| Pin 60 | T0CKI — Timer 0 clock input |
| Pin 61 | T1CKI — Timer 1 clock input |
| Pin 62 | T2CKI — Timer 2 clock input |
| Pin 63 | CCP1 — Capture/Compare/PWM channel 1 |
| Pin 64 | CCP2 — Capture/Compare/PWM channel 2 |
| Pin 65 | TX/CK — UART transmit / clock |
| Pin 66 | RX/DT — UART receive / data |
| Pin 67 | MCLR/VPP — Master clear reset / programming voltage |
| Pin 68 | NC — Not connected (per datasheet) |
| Pin 69 | NC — Not connected (per datasheet) |
| Pin 70 | NC — Not connected (per datasheet) |
| Pin 71 | NC — Not connected (per datasheet) |
| Pin 72 | NC — Not connected (per datasheet) |
| Pin 73 | NC — Not connected (per datasheet) |
| Pin 74 | NC — Not connected (per datasheet) |
| Pin 75 | NC — Not connected (per datasheet) |
| Pin 76 | NC — Not connected (per datasheet) |
| Pin 77 | NC — Not connected (per datasheet) |
| Pin 78 | NC — Not connected (per datasheet) |
| Pin 79 | NC — Not connected (per datasheet) |
| Pin 80 | NC — Not connected (per datasheet) |
| Pin 81 | NC — Not connected (per datasheet) |
| Pin 82 | NC — Not connected (per datasheet) |
| Pin 83 | NC — Not connected (per datasheet) |
| Pin 84 | NC — Not connected (per datasheet) |
Typical Applications
PIC17LC762T-08/L is suitable for 6 applications: Industrial Motor Control Front-End, HVAC Multi-Zone Sensor Aggregation, Automotive Body and Chassis Controller, White-Goods User Interface Board, POS Terminal and Vending Controller, Industrial Process Controller (PID Loop).
Industrial Motor Control Front-End
The PIC17LC762T-08/L's 16-channel 10-bit ADC, three timer/counters, and CCP/PWM module make it a strong fit for industrial motor-control front-ends driving 3-phase BLDC or stepper stages. The on-chip 8-bit hardware MULFW executes closed-loop PI calculations in a single 121 ns cycle, enabling 4 MIPS sustained control throughput at the 8 MHz oscillator. Designers pair it with external gate drivers (e.g., IR2104) for low-side switching or with an FAN7382 for high-side bootstrap drive; the 33 I/O lines comfortably accommodate Hall-sensor inputs, fault flags, and an RS-485 comm link to a PLC. The 2.5-5.0 V supply range lets the same firmware serve both 3.3 V and 5 V motion boards.
Recommended
HVAC Multi-Zone Sensor Aggregation
With 16 analog inputs and a single 10-bit ADC, the PIC17LC762T-08/L can directly aggregate temperature, humidity, and pressure sensors across multiple HVAC zones without an external analog multiplexer. Its 2.5-5.0 V supply range supports ratiometric 3.3 V sensor bridges and legacy 5 V thermostats in the same board. The 33 I/O lines drive triac-fired damper actuators and seven-segment displays, while the I2C master port links to a downstream CO2 sensor. Single-cycle 121 ns instructions let the firmware scan all 16 channels and update the PWM output within a 1 ms control period, leaving ample margin for display refresh.
Recommended
Automotive Body and Chassis Controller
The PIC17LC762T-08/L is widely used in automotive body controllers (window lift, mirror adjust, central locking) and chassis subsystems where its 8-bit PIC17C core, hardware MULFW, and 16-channel ADC deliver deterministic real-time response. The Brown-Out Reset and Watchdog Timer provide the failsafe behavior required for ISO 26262-adjacent subsystems, and the on-chip UART supports 9-bit LIN-bus master operation for body-control networks. For new designs Microchip directs customers to dsPIC33E (e.g., DSPIC33EV256GM106), which is supported by the same MPLAB X toolchain and offers 5 V operation with automotive AEC-Q100 qualification.
Recommended
White-Goods User Interface Board
Washing machines, dishwashers, and microwave ovens traditionally use PIC17C MCUs to scan a 4x5 keypad, drive a 7-segment or character LCD, and time the motor or magnetron with high accuracy. The PIC17LC762T-08/L's 33 I/O lines handle 20 keypad pins plus 14 LCD segment pins, the 10-bit ADC reads the water-level sensor and door-latch status, and the CCP/PWM module generates the buzzer tone. Its 2.5-5.0 V supply range means the same MCU runs on either an unregulated 5 V or a switched 3.3 V rail, simplifying UL/CE safety-isolation design. OTP memory locks the firmware against field tampering of safety-critical parameters.
Recommended
POS Terminal and Vending Controller
Vending machines and small point-of-sale terminals leverage the PIC17LC762T-08/L's combination of UART (for bill/coin acceptor MDB interface), I2C master (for EEPROM price tables and RTC), and 16-channel ADC (for coin opto-sensor calibration). The single-cycle MULFW accelerates vending-decision logic and currency-handling state machines. The 84-PLCC package sits comfortably on a socketed controller board for easy field service replacement. With OTP memory, the firmware image cannot be cloned by counterfeiters, a security advantage over flash-based MCUs in unattended payment applications.
Recommended
Industrial Process Controller (PID Loop)
Process controllers for temperature, pressure, and flow regulation use the PIC17LC762T-08/L as a single-chip PID solution. The 10-bit ADC samples the process variable, the hardware MULFW executes the P, I, and D terms in real time, and the CCP/PWM drives the heater or proportional valve. The 33 I/O lines accommodate a 4x4 keypad for setpoint entry, a 16x2 character LCD for display, and four alarm outputs. The Brown-Out Reset and Watchdog Timer ensure safe shutdown on power glitches or firmware lock-up, both required by IEC 61508 SIL-1 process-control applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC17LC762T-08/L — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC17LC762-08I/L | PIC17LC762-08/L | PIC17C762T-33/L |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 84-PLCC (J-Lead) | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Program Memory | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) |
| RAM Size | 678 bytes | 678 bytes | 678 bytes | 678 bytes |
| Max Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 33 MHz |
| Supply Voltage | 2.5 V to 5.0 V | 2.5 V to 5.0 V | 2.5 V to 5.0 V | 4.5 V to 5.5 V |
| ADC | 10-bit, 16-ch | 10-bit, 16-ch | 10-bit, 16-ch | 10-bit, 16-ch |
| Operating Temperature | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) |
Key Differentiators
- Industry's only 16-channel 10-bit ADC in a 84-PLCC 8-bit MCU (vs PIC16F877A-I/PT)
- On-chip 8-bit hardware multiplier executes MULFW in 121 ns (vs PIC16F877A-I/PT)
- Wider 2.5-5.0 V supply range vs 5 V-only PIC17C762 (vs PIC17C762T-33/L)
- OTP memory prevents firmware cloning in unattended payment devices (vs PIC16F877A-I/PT (flash))
Design Notes
OTP memory on the PIC17LC762T-08/L can be programmed exactly once. Validate firmware thoroughly with MPLAB SIM and an in-circuit emulator (ICE 17C) before committing parts to production. A single bit error requires scrapping the device. Use the PIC17C76x programming specification (DS39026) for the exact VPP, VDD, and timing sequence; deviating from these parameters can damage the part without raising a programming error flag.
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of every VDD/VSS pair (pins 34, 59 for VDD and 33, 58 for VSS). Add a single 10 uF bulk tantalum or aluminum electrolytic capacitor at the board entry point. The PIC17C family draws brief supply current spikes (up to 50 mA) during table-read operations; insufficient bulk capacitance causes VDD droops that trigger spurious Brown-Out Resets. Estimated quiescent current at 5 V, 8 MHz, all peripherals disabled is approximately 5 mA per the datasheet DC characteristics.
The 84-PLCC socket (e.g., Augat 84-PRS13002 or 3M 8440-21B1-RK-TD) accepts the part and allows field replacement, but adds 5-6 mm of vertical height. For surface-mount-only boards, use a 84-PLCC SMT pad pattern with J-lead footprint per JEDEC MO-047. Keep analog traces (RA0-RA7, RE0-RE7) routed away from the OSC1/OSC2 clock traces and from PWM outputs (CCP1, CCP2) to minimize ADC conversion noise.
The PIC17C MULFW (hardware multiply) and TBLRD/TBLWT (table read/write) instructions can execute concurrently with ADC conversions, injecting digital noise into the analog supply rail. For high-precision 10-bit measurements, gate the ADC start-of-conversion to a quiet window or insert two NOP cycles between MULFW and ADCON0.GO. An external 2.5 V reference (e.g., MCP1525) instead of VDD-derived reference can improve ADC absolute accuracy by 2-3 LSB in noisy environments.
Compliance Information
RoHS and REACH compliance status not stated in the verified web data; the part is commercial-temperature grade (0-70 C) and NOT AEC-Q100 qualified - select an automotive-grade PIC18F or dsPIC33E variant for vehicular applications.
