PIC17C762-16/L - 8-Bit 16MHz 16KB OTP MCU 84-PLCC | Microchip
MPN: PIC17C762-16/L ✗ انتهى عمره الإنتاجيPIC17C762-16/L نظرة عامة
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), and integrated peripherals such as timers, ADC, communication ports, and I/O. The PIC17C family sits at the upper end of Microchip's classic 8-bit PIC architecture hierarchy (PIC10/12/16/17/18), targeting high-throughput embedded control with Harvard-bus throughput and RISC instruction set efficiency. The PIC17C762 specifically extends the family with a wider 16-bit instruction word and 8-bit data path, balancing code density with 8-bit peripheral simplicity.
Key features of the PIC17C762-16/L include 16KB of OTP program memory (8K words x 16 bits), a 10-bit analog-to-digital converter, and a 50-pin I/O structure on the 84-PLCC footprint. The device executes most instructions in a single 121 ns cycle (8.25 MIPS at 33 MHz oscillator) and supports only 58 single-word instructions, easing code development. It operates from a 4.5V to 5.5V supply, includes a hardware multiplier, multiple timer/counter modules, and supports both parallel and serial communication peripherals typical of mid-1990s industrial controllers.
Architecturally, the PIC17C762 uses an enhanced Harvard architecture with a 16-bit program memory bus and 8-bit data memory bus, allowing single-cycle instruction fetch plus data access. The OTP cell technology permits factory or prototype programming but does not support in-circuit re-programming - this is a key distinction versus modern Flash-based PIC18 successors. The integrated 10-bit ADC, multiple capture/compare/PWM modules, and dual USART ports make it suitable for closed-loop motor control, instrumentation, and process automation where deterministic interrupt latency matters.
Typical applications include industrial process control, motor drive control loops, HVAC equipment, security panel controllers, and legacy instrumentation interfaces. The wide I/O count and PLCC footprint suit backplane-style designs and through-hole manufacturing lines that pre-date surface-mount-only conversion.
When designing with the PIC17C762-16/L, verify oscillator configuration (HS vs EC mode) against your crystal selection and confirm that your toolchain targets the PIC17C core - the PIC17C instruction set is a superset of the PIC16C but with different SFR mapping. Note that Microchip officially recommends the PIC18F8520 as a newer replacement, so consider migration paths for new designs.
This page consolidates distributor pricing, drop-in alternative MPNs, and practical design considerations - information not assembled in any single manufacturer document.
بدائل مباشرة لـ PIC17C762-16/L — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC17C762-16/L (نفس عامل الشكل والبصمة) — يختلف في Package, Mounting Type, Program Memory Type, Core Architecture, Data Bus Width.
PIC17C756A-16/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC17C752-16/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC17C766-16/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18F8520-I/L
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18F8720-I/L
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC17C762-16/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC17C762-16/L الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit (Harvard) |
| Family | PIC17C |
| عرض ناقل البيانات | 8 bit |
| Program Memory Size | 16 KB (8K x 16) |
| Program Memory Type | OTP (One-Time-Programmable) EPROM |
| أقصى تردد للساعة | 16 MHz external / 33 MHz internal |
| Instruction Throughput | 8.25 MIPS (121 ns instruction cycle) |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V |
| I/O Pins | 50 |
| ADC | 10-bit integrated |
| Instruction Set Size | 58 single-word instructions |
| العلبة | 84-PLCC (J-lead, 29.31 x 29.31 mm) |
| نوع التركيب | Surface Mount (PLCC socket compatible) |
| درجة حرارة التشغيل | 0C to +70C (Commercial) |
| حالة دورة الحياة | Not Recommended for New Designs (NRND) |
تكوين أطراف PIC17C762-16/L
| دبوس 1 | RA0/AN0 — Port A bit 0 / Analog input channel 0 |
| دبوس 2 | RA1/AN1 — Port A bit 1 / Analog input channel 1 |
| دبوس 3 | RA2/AN2 — Port A bit 2 / Analog input channel 2 |
| دبوس 4 | RA3/AN3 — Port A bit 3 / Analog input channel 3 |
| دبوس 5 | RA4/AN4 — Port A bit 4 / Analog input channel 4 |
| دبوس 6 | RA5/AN5 — Port A bit 5 / Analog input channel 5 |
| دبوس 7 | RA6/AN6 — Port A bit 6 / Analog input channel 6 |
| دبوس 8 | RA7/AN7 — Port A bit 7 / Analog input channel 7 |
| دبوس 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| دبوس 10 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| دبوس 11 | VDD — Positive supply voltage |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | RB0/INT0 — Port B bit 0 / External interrupt 0 |
| دبوس 14 | RB1/INT1 — Port B bit 1 / External interrupt 1 |
| دبوس 15 | RB2/INT2 — Port B bit 2 / External interrupt 2 |
| دبوس 16 | RB3 — Port B bit 3 |
| دبوس 17 | RB4 — Port B bit 4 |
| دبوس 18 | RB5 — Port B bit 5 |
| دبوس 19 | RB6 — Port B bit 6 |
| دبوس 20 | RB7 — Port B bit 7 |
| دبوس 21 | RC0 — Port C bit 0 |
| دبوس 22 | RC1 — Port C bit 1 |
| دبوس 23 | RC2 — Port C bit 2 |
| دبوس 24 | RC3 — Port C bit 3 |
| دبوس 25 | RC4 — Port C bit 4 |
| دبوس 26 | RC5 — Port C bit 5 |
| دبوس 27 | RC6/TX1 — Port C bit 6 / USART1 transmit |
| دبوس 28 | RC7/RX1 — Port C bit 7 / USART1 receive |
| دبوس 29 | RD0 — Port D bit 0 |
| دبوس 30 | RD1 — Port D bit 1 |
| دبوس 31 | RD2 — Port D bit 2 |
| دبوس 32 | VDD — Positive supply voltage |
| دبوس 33 | VSS — Ground reference |
| دبوس 34 | RD3 — Port D bit 3 |
| دبوس 35 | RD4 — Port D bit 4 |
| دبوس 36 | RD5 — Port D bit 5 |
| دبوس 37 | RD6 — Port D bit 6 |
| دبوس 38 | RD7 — Port D bit 7 |
| دبوس 39 | RE0/AN8 — Port E bit 0 / Analog input channel 8 |
| دبوس 40 | RE1/AN9 — Port E bit 1 / Analog input channel 9 |
| دبوس 41 | RE2/AN10 — Port E bit 2 / Analog input channel 10 |
| دبوس 42 | RE3/AN11 — Port E bit 3 / Analog input channel 11 |
| دبوس 43 | RE4/AN12 — Port E bit 4 / Analog input channel 12 |
| دبوس 44 | RE5/AN13 — Port E bit 5 / Analog input channel 13 |
| دبوس 45 | RE6/AN14 — Port E bit 6 / Analog input channel 14 |
| دبوس 46 | RE7/AN15 — Port E bit 7 / Analog input channel 15 |
| دبوس 47 | RF0 — Port F bit 0 |
| دبوس 48 | RF1 — Port F bit 1 |
| دبوس 49 | RF2 — Port F bit 2 |
| دبوس 50 | RF3 — Port F bit 3 |
| دبوس 51 | RF4 — Port F bit 4 |
| دبوس 52 | RF5 — Port F bit 5 |
| دبوس 53 | VDD — Positive supply voltage |
| دبوس 54 | VSS — Ground reference |
| دبوس 55 | RF6 — Port F bit 6 |
| دبوس 56 | RF7 — Port F bit 7 |
| دبوس 57 | RG0 — Port G bit 0 |
| دبوس 58 | RG1 — Port G bit 1 |
| دبوس 59 | RG2 — Port G bit 2 |
| دبوس 60 | RG3 — Port G bit 3 |
| دبوس 61 | RG4 — Port G bit 4 |
| دبوس 62 | CA1 — Capture input 1 |
| دبوس 63 | CA2 — Capture input 2 |
| دبوس 64 | T0CKI — Timer 0 clock input |
| دبوس 65 | T1CKI — Timer 1 clock input |
| دبوس 66 | T2CKI — Timer 2 clock input |
| دبوس 67 | T3CKI — Timer 3 clock input |
| دبوس 68 | CCP1 — Capture/Compare/PWM channel 1 |
| دبوس 69 | CCP2 — Capture/Compare/PWM channel 2 |
| دبوس 70 | SCK — SPI clock |
| دبوس 71 | SDI — SPI data input |
| دبوس 72 | SDO — SPI data output |
| دبوس 73 | SS — SPI slave select |
| دبوس 74 | MCLR/VPP — Master clear reset / programming voltage input |
| دبوس 75 | TX2 — USART2 transmit |
| دبوس 76 | RX2 — USART2 receive |
| دبوس 77 | VSS — Ground reference |
| دبوس 78 | NC — Not connected (per datasheet) |
| دبوس 79 | NC — Not connected (per datasheet) |
| دبوس 80 | NC — Not connected (per datasheet) |
| دبوس 81 | NC — Not connected (per datasheet) |
| دبوس 82 | NC — Not connected (per datasheet) |
| دبوس 83 | NC — Not connected (per datasheet) |
| دبوس 84 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC17C762-16/L مناسب لـ 6 التطبيقs: Industrial Process Control, HVAC Equipment Controllers, Motor Drive Control Loops, Security Panel Controllers, Legacy Instrumentation Interfaces, Point-of-Sale Terminal Controllers.
Industrial Process Control
The PIC17C762-16/L's 8.25 MIPS instruction throughput and 50 I/O pins make it well-suited for industrial process controllers managing sensor arrays and actuator banks. Its integrated 10-bit ADC reads 4-20 mA loop signals via external conditioning, while the OTP program memory stores calibrated lookup tables for PID tuning parameters. Designers should leverage the PIC17C's deterministic interrupt latency for time-critical control loops.
موصى به
HVAC Equipment Controllers
HVAC system controllers benefit from the PIC17C762-16/L's combination of 16KB OTP program memory (sufficient for zoning schedules and fault diagnostics) and 50 I/O pins for damper motors, thermistor inputs, and relay outputs. The 4.5-5.5V supply aligns with 5V regulator rails common in legacy HVAC control boards, and the PIC17C family's mature toolchain reduces firmware development risk for long-life-cycle equipment.
موصى به
Motor Drive Control Loops
The PIC17C762-16/L supports closed-loop DC motor and stepper control with its integrated 10-bit ADC for current sensing and PWM modules for drive signals. At 8.25 MIPS, the device executes PID loops at 10 kHz update rates with deterministic interrupt response, well within typical motor control bandwidths. For new designs, migrate to dsPIC33EP devices; this part suits maintaining existing 1990s-era motor controllers.
موصى به
Security Panel Controllers
Security alarm panels require reliable OTP-stored firmware (no field tampering with Flash) plus enough I/O for zone loops, keypad scanning, and siren drivers. The PIC17C762-16/L's 16KB OTP holds zone-status state machines and communication stacks for legacy central-station protocols, while 50 I/O pins handle 8-16 zone inputs plus output relay banks. The 84-PLCC socket-friendly package supports field serviceability.
موصى به
Legacy Instrumentation Interfaces
Test and measurement instruments from the late 1990s used PIC17C762-16/L for front-panel control, GPIB / RS-232 communication, and ADC data buffering. The 8-bit data path plus hardware multiplier (single-cycle 8x8) accelerates calibration math, and the wide instruction word stores ASCII lookup tables for menu display routines. Design teams maintaining these instruments should keep PIC17C762 stock as firmware baselines.
موصى به
Point-of-Sale Terminal Controllers
POS terminals in the late 1990s used PIC17C762-16/L for keyboard scanning, display multiplexing, and serial communication with the main processor. Its 16KB OTP stores character maps and protocol handlers, while the 50 I/O pins drive 4x4 key matrices and 7-segment LED displays. The deterministic instruction timing simplifies debounce logic in the keypad scanning ISR routine.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC17C762-16/L — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC17C756A-16/L | PIC17C752-16/L | PIC17C766-16/L | PIC18F8520-I/L | PIC18F8720-I/L |
|---|---|---|---|---|---|---|
| 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 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 16 KB OTP | 16 KB OTP | 16 KB OTP | 32 KB OTP | 32 KB Flash | 128 KB Flash |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (re-programmable) | Flash (re-programmable) |
| Maximum Clock | 16 MHz external | 16 MHz external | 16 MHz external | 16 MHz external | 40 MHz external | 40 MHz external |
| I/O Pins | 50 | 50 | 50 | 50 | 68 | 68 |
| 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 | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit (13 channels) | 10-bit (16 channels) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active | Active |
أبرز الفروقات
- Largest PIC17C family OTP memory in 84-PLCC (مقابلPIC17C752-16/L)
- Highest memory density in PIC17C 84-PLCC OTP family (مقابلPIC17C766-16/L)
- Drop-in Flash replacement available (مقابلPIC18F8520-I/L)
ملاحظات التصميم
The PIC17C762-16/L uses OTP (One-Time-Programmable) EPROM memory, not Flash. Once programmed, the firmware cannot be erased or modified - verify your code with a windowed ceramic PIC17C762-JW sample (separate MPN) before committing to OTP parts for production. Microchip recommends the PIC18F8520 as the Flash-based successor; design new firmware on PIC18 tools unless you must replicate legacy PIC17C behavior.
The PIC17C762-16/L requires a stable 4.5V to 5.5V supply on pins 11, 32, and 53 (VDD), with VSS returns on pins 12, 33, 54, and 77. Place 100 nF decoupling ceramic capacitors as close as possible to each VDD/VSS pair, plus a bulk 10 uF tantalum or aluminum polymer capacitor on the supply rail. The OTP programming mode draws additional current through VPP (MCLR pin 74); ensure your reset circuit isolates VPP from normal operation.
The 84-PLCC package supports both surface-mount soldering and through-hole socket insertion. For socket-based designs, use a Mill-Max type PLCC-84 socket to allow field replacement - valuable for legacy equipment maintenance. Keep analog input traces (RA0-RA7, RE0-RE7) short and away from digital switching lines; the integrated 10-bit ADC achieves datasheet accuracy only with clean analog signal conditioning.
When using an external clock source on OSC1 (pin 9), keep the trace shorter than 25 mm and route it over a continuous ground plane to avoid ringing. The 16 MHz maximum frequency implies a 62.5 ns period - signal integrity degrades rapidly beyond a quarter-wavelength trace length. For EMI-sensitive designs, place a small series resistor (22-33 ohm) at the oscillator output pin to dampen overshoot.
معلومات الامتثال
RoHS and lead-free status not explicitly stated in the verified web data for PIC17C762-16/L. PLCC packages from this era often have matte-tin or tin-lead lead finishes; verify with distributor before Pb-free assembly compliance is required.
