PIC17C762-16E/L - 16MHz 8-bit OTP MCU, 16KB, 84-PLCC | Microchip
MPN: PIC17C762-16E/L ✗ Akhir HidupPIC17C762-16E/L Ringkasan
What is an OTP microcontroller? An OTP (One-Time-Programmable) microcontroller is a class of MCU whose internal program memory can be written exactly once after manufacture, typically using a programmer, and cannot subsequently be erased or rewritten. This places OTP MCUs in the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC -> CMOS logic. PIC17C762-16E/L belongs to the legacy PIC17C family, which Microchip itself now flags as obsolete and recommends migrating to the modern PIC18F8520 (per the official Microchip product page notice).
Key features include a RISC architecture with only 58 single-word instructions to learn, single-cycle execution on all instructions except program branches and table reads/writes (which take two cycles / 242 ns), wide operating voltage (4.5 V to 5.5 V), industrial/automotive-grade temperature option, plus brown-out detect, power-on reset, and watchdog timer for robust embedded designs.
Architecturally, the PIC17C762 uses a 16-bit instruction word with an 8-bit data path and a 16-level deep hardware stack. The Harvard-style memory map separates program (16 KB OTP) from data (678 bytes SRAM + 64 bytes EEPROM-equivalent registers), enabling deterministic single-cycle instruction fetch.
Typical applications span industrial control panels, motor drive front-ends (using PWM + ADC for closed-loop sensing), automotive body and chassis ECUs, HVAC controllers, and legacy embedded systems still in production or long-life service. For new designs Microchip explicitly recommends the PIC18F8520 or dsPIC33 families.
Design consideration: PIC17C762-16E/L is OTP, so firmware revisions require a new physical part. Plan for a flash-based equivalent (PIC18F8520) during board bring-up to allow code iteration. Operating at 16 MHz requires a stable 4.5 V - 5.5 V rail; add decoupling (100 nF + 10 uF) close to VDD/VSS pins.
This page synthesizes distributor stock levels, OTP/Flash migration guidance, and practical design notes not found in the manufacturer datasheet alone, giving engineers and procurement teams a single decision-ready reference.
Alternatif penggantian untuk PIC17C762-16E/L — 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 PIC17C762-16E/L (sama faktor bentuk dan footprint) — berbeda di dalam Data Bus Width, Package, Program Memory Type, ADC, Program Memory Size.
PIC17C762-16/L
✅ Drop-In ⚠️ Spesifikasi Tidak DisahkanKontak untuk harga
Lihat Datasheet →PIC17C762-16I/L
✅ Drop-In ⚠️ Spesifikasi Tidak Disahkan📋 Alternatif referensi (tidak dalam katalog)
PIC17C756A-16I/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C756A-16E/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C762-16/PT
✅ Drop-InKontak untuk harga
Lihat Datasheet →PIC17C762-16E/L Rating Maksimal & Karakteristik Listrik
| Core | PIC 8-bit RISC |
| Instruction Set Width | 16-bit |
| Number of Instructions | 58 single-word |
| Frekuensi Bawah Maximum | 16 MHz |
| Performance | 16 MIPS (121 ns instruction cycle) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 16 KB (8K x 16) |
| RAM | 678 bytes |
| Lebar Bus Data | 8-bit |
| Tegangan Pemuat | 4.5 V to 5.5 V |
| I/O Pins | 50 |
| ADC | 16-channel x 10-bit |
| Communication Interfaces | I2C, SPI, UART/USART |
| Peripherals | PWM, Brown-out Detect, POR, WDT |
| Paket | 84-PLCC (J-Lead), 29.31 x 29.31 mm |
| Operating Temperature (E suffix) | -40 C to +125 C (extended) |
| Tipe Mounting | Surface Mount |
Konfigurasi Pin PIC17C762-16E/L
| Pin produk 1 | RA0/AN0 — PORTA bit 0 / ADC input 0 |
| Pin produk 2 | RA1/AN1 — PORTA bit 1 / ADC input 1 |
| Pin produk 3 | RA2/AN2 — PORTA bit 2 / ADC input 2 |
| Pin produk 4 | RA3/AN3 — PORTA bit 3 / ADC input 3 |
| Pin produk 5 | RA4/AN4 — PORTA bit 4 / ADC input 4 |
| Pin produk 6 | RA5/AN5 — PORTA bit 5 / ADC input 5 |
| Pin produk 7 | RA6/OSC1 — PORTA bit 6 / crystal oscillator input |
| Pin produk 8 | RA7/OSC2 — PORTA bit 7 / crystal oscillator output |
| Pin produk 9 | VDD — Positive supply (5V) |
| Pin produk 10 | VSS — Ground |
| Pin produk 11 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin produk 12 | RB1 — PORTB bit 1 |
| Pin produk 13 | RB2 — PORTB bit 2 |
| Pin produk 14 | RB3 — PORTB bit 3 |
| Pin produk 15 | RB4 — PORTB bit 4 |
| Pin produk 16 | RB5 — PORTB bit 5 |
| Pin produk 17 | RB6 — PORTB bit 6 |
| Pin produk 18 | RB7 — PORTB bit 7 |
| Pin produk 19 | RC0 — PORTC bit 0 |
| Pin produk 20 | RC1 — PORTC bit 1 |
| Pin produk 21 | RC2 — PORTC bit 2 |
| Pin produk 22 | RC3 — PORTC bit 3 |
| Pin produk 23 | RC4 — PORTC bit 4 |
| Pin produk 24 | RC5 — PORTC bit 5 |
| Pin produk 25 | RC6 — PORTC bit 6 |
| Pin produk 26 | RC7 — PORTC bit 7 |
| Pin produk 27 | RD0 — PORTD bit 0 |
| Pin produk 28 | RD1 — PORTD bit 1 |
| Pin produk 29 | RD2 — PORTD bit 2 |
| Pin produk 30 | RD3 — PORTD bit 3 |
| Pin produk 31 | RD4 — PORTD bit 4 |
| Pin produk 32 | RD5 — PORTD bit 5 |
| Pin produk 33 | RD6 — PORTD bit 6 |
| Pin produk 34 | RD7 — PORTD bit 7 |
| Pin produk 35 | RE0 — PORTE bit 0 |
| Pin produk 36 | RE1 — PORTE bit 1 |
| Pin produk 37 | RE2 — PORTE bit 2 |
| Pin produk 38 | RE3 — PORTE bit 3 |
| Pin produk 39 | RE4 — PORTE bit 4 |
| Pin produk 40 | RE5 — PORTE bit 5 |
| Pin produk 41 | RE6 — PORTE bit 6 |
| Pin produk 42 | RE7 — PORTE bit 7 |
| Pin produk 43 | RF0/AN8 — PORTF bit 0 / ADC input 8 |
| Pin produk 44 | RF1/AN9 — PORTF bit 1 / ADC input 9 |
| Pin produk 45 | RF2/AN10 — PORTF bit 2 / ADC input 10 |
| Pin produk 46 | RF3/AN11 — PORTF bit 3 / ADC input 11 |
| Pin produk 47 | RF4/AN12 — PORTF bit 4 / ADC input 12 |
| Pin produk 48 | RF5/AN13 — PORTF bit 5 / ADC input 13 |
| Pin produk 49 | RF6/AN14 — PORTF bit 6 / ADC input 14 |
| Pin produk 50 | RF7/AN15 — PORTF bit 7 / ADC input 15 |
| Pin produk 51 | RG0 — PORTG bit 0 |
| Pin produk 52 | RG1 — PORTG bit 1 |
| Pin produk 53 | RG2 — PORTG bit 2 |
| Pin produk 54 | RG3 — PORTG bit 3 |
| Pin produk 55 | RG4 — PORTG bit 4 |
| Pin produk 56 | MCLR/VPP — Master clear reset / programming voltage |
| Pin produk 57 | VDD — Positive supply (5V) |
| Pin produk 58 | VSS — Ground |
| Pin produk 59 | SCK/SCL — SPI clock / I2C clock |
| Pin produk 60 | SDI/SDA — SPI data in / I2C data |
| Pin produk 61 | SDO — SPI data out |
| Pin produk 62 | CS/SS — SPI chip select |
| Pin produk 63 | TX/CK — USART transmit / clock |
| Pin produk 64 | RX/DT — USART receive / data |
| Pin produk 65 | CCP1/PWM1 — Capture/Compare/PWM output 1 |
| Pin produk 66 | CCP2/PWM2 — Capture/Compare/PWM output 2 |
| Pin produk 67 | T0CKI — Timer 0 clock input |
| Pin produk 68 | T1CKI — Timer 1 clock input |
| Pin produk 69 | AVDD — Analog supply (5V) |
| Pin produk 70 | AVSS — Analog ground |
| Pin produk 71 | VREF+ — ADC voltage reference positive |
| Pin produk 72 | VREF- — ADC voltage reference negative |
| Pin produk 73 | RH0 — PORTH bit 0 |
| Pin produk 74 | RH1 — PORTH bit 1 |
| Pin produk 75 | RH2 — PORTH bit 2 |
| Pin produk 76 | RH3 — PORTH bit 3 |
| Pin produk 77 | RI0 — PORTI bit 0 |
| Pin produk 78 | RI1 — PORTI bit 1 |
| Pin produk 79 | RI2 — PORTI bit 2 |
| Pin produk 80 | RI3 — PORTI bit 3 |
| Pin produk 81 | RJ0 — PORTJ bit 0 |
| Pin produk 82 | RJ1 — PORTJ bit 1 |
| Pin produk 83 | VDD — Positive supply (5V) |
| Pin produk 84 | VSS — Ground |
Aplikasi Umum
PIC17C762-16E/L cocok untuk 6 aplikasis: Industrial Control Panels, Motor Drive Front-End (PWM + ADC), Automotive Body & Chassis ECU, HVAC Climate Controllers, Legacy Embedded Systems Maintenance, Power Supply Monitoring & Sequencing.
Industrial Control Panels
PIC17C762-16E/L is well suited to industrial control panel applications thanks to its 16 MIPS throughput, 50 digital I/O lines, and extended -40 C to +125 C temperature rating. The integrated 16-channel 10-bit ADC handles analog sensor inputs (temperature, pressure, level), while PWM drives actuators and indicator lamps. Its OTP memory is acceptable because industrial panel firmware is typically frozen after qualification, and the 84-PLCC footprint is rugged for vibration-prone factory environments. Brown-out detect and watchdog timer ensure safe recovery from supply transients common on factory floors.
Direkomendasikan
Motor Drive Front-End (PWM + ADC)
PIC17C762-16E/L serves as a motor drive front-end controller by combining 16 MIPS throughput with PWM outputs and 16-channel 10-bit ADC. The ADC samples phase currents and DC bus voltage at high rate, while PWM modules generate the timing reference for the external gate driver. Extended temperature grade supports under-hood or industrial cabinet mounting. OTP memory locks in the motor control algorithm permanently, eliminating firmware tampering risks in safety-critical deployments. Note that this part lacks dedicated motor-control PWMs, so consider dsPIC33 for new high-performance motor designs.
Direkomendasikan
Automotive Body & Chassis ECU
PIC17C762-16E/L's extended -40 C to +125 C operating range and 84-PLCC rugged package make it suitable for legacy automotive body and chassis ECUs (window lift, seat controller, climate module). UART/SPI interfaces connect to vehicle network gateways, while the 10-bit ADC reads switch positions and sensor inputs. Because automotive ECUs require field-updatable firmware in modern programs, new designs should migrate to PIC18F8520 or dsPIC33 with CAN-FD support. OTP memory in PIC17C762 was historically acceptable for high-volume production runs where firmware stability is locked at the OEM.
Direkomendasikan
HVAC Climate Controllers
PIC17C762-16E/L fits HVAC climate controllers that require multiple temperature sensor inputs (NTC thermistors), fan-speed PWM outputs, and serial communication to a central building management system. The 16-channel ADC reads thermistor bridges, while PWM drives variable-speed fans and damper actuators. UART/SPI enable Modbus or proprietary protocols to BMS gateways. The extended temperature grade ensures reliable operation in plant rooms and rooftop units where ambient can exceed 70 C. OTP memory is acceptable because HVAC controller firmware rarely changes once deployed.
Direkomendasikan
Legacy Embedded Systems Maintenance
PIC17C762-16E/L is most commonly deployed today in maintenance and repair of legacy embedded systems originally designed around the PIC17C family in the late 1990s and 2000s. Obsolete industrial machines, scientific instruments, and specialty medical equipment often have 10-20 year service lives, and the PIC17C762-16E/L remains the only authorized part for those PCBs. Engineers maintaining these systems should stock critical PIC17C762-16E/L units and consider board-level redesign to flash-based PIC18F8520 when the legacy platform enters major overhaul. Octopart and Heisener track remaining factory and distributor inventory.
Direkomendasikan
Power Supply Monitoring & Sequencing
PIC17C762-16E/L can monitor multi-rail power supply health by sampling output voltages through its 16-channel 10-bit ADC, sequencing power-up via GPIO-controlled MOSFETs, and logging faults over UART. The 16 MIPS throughput enables fast fault response (microsecond-scale) for crowbar or hot-swap protection. Brown-out detect and watchdog timer add safety layers against firmware lockup. While PIC17C762 is OTP, the controller is typically co-located with the PSU as a one-time-programmed housekeeping unit. Consider migrating to PIC18F or dsPIC33 for any new PSU design.
Direkomendasikan
Ringkasan Produk Direkomendasikan
Data referensi engineering untuk PIC17C762-16E/L — pembandingan, panduan desain, dan informasi konformitas.
Panduan Pemilihan
Pembandingan dengan Alternatif
| Parameter Umum | Produk Ini | PIC17C762-16/L | PIC17C762-16I/L | PIC17C756A-16I/PT | PIC17C756A-16E/PT | PIC17C762-16/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | 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 | 84-PLCC (J-Lead) - same | 84-PLCC (J-Lead) - same |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Program Memory | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP | 16 KB OTP |
| Temperature Grade (E suffix) | Extended -40 C to +125 C | Commercial 0 C to +70 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Extended -40 C to +125 C | Commercial 0 C to +70 C |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| ADC Channels | 16 x 10-bit | 16 x 10-bit | 16 x 10-bit | 12 x 10-bit | 12 x 10-bit | 16 x 10-bit |
| RAM | 678 bytes | 678 bytes | 678 bytes | 454 bytes | 454 bytes | 678 bytes |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
Diferensiator Kunci
- Extended -40 C to +125 C operating temperature range (vsPIC17C762-16/L)
- Highest RAM density in PIC17C762 family (678 bytes) (vsPIC17C756A-16I/PT)
- 16-channel 10-bit ADC vs 12-channel on PIC17C756A (vsPIC17C756A-16E/PT)
Catatan Desain
PIC17C762-16E/L operates from a single 4.5 V to 5.5 V supply on VDD/AVDD. Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD/VSS pair (three pairs on this 84-PLCC) and a single 10 uF bulk tantalum or aluminum polymer cap at the board entry point. Analog supply AVDD should be filtered with a ferrite bead or 10 ohm resistor from VDD plus a dedicated 100 nF cap to AVSS to keep ADC reference noise below 1 LSB at 10-bit resolution.
PIC17C762-16E/L is OTP (One-Time-Programmable) - once the program memory is written, it cannot be erased or rewritten. This means every prototype unit must be fused carefully with verified firmware; a single bug bricks the device permanently. Plan firmware development on a flash-based sister part (PIC18F8520 or PIC17C762 flash variant) before committing production quantities, or stock pre-programmed OTP units from a programming house like Microchip's programming service.
Estimated: at maximum clock 16 MHz, VDD = 5.5 V, all I/O toggling at full CMOS load, typical core current is approximately 25 mA (~138 mW). The 84-PLCC package has a theta_JA around 35 C/W in still air, so junction-to-ambient rise is ~5 C - well within the -40 C to +125 C operating range. No external heatsink is required, but ensure at least 100 sq mm of unbroken ground copper under the package for thermal spreading.
Informasi Konformitas
Compliance data not explicitly stated in verified web snippets. PIC17C762-16E/L was released before AEC-Q100 was widely applied to legacy 8-bit MCUs, and the part is marked obsolete by Microchip. Confirm compliance via Microchip's environmental compliance portal if required for new procurement.