PIC16LC782-I/P - 8-bit MCU, 3.5KB OTP, 20MHz, 20-DIP | Microchip
MPN: PIC16LC782-I/P ✓ Hoạt độngPIC16LC782-I/P Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, volatile data RAM, and configurable peripherals on one silicon die. PIC microcontrollers use a Harvard RISC architecture with separate program and data buses, and the PIC16LC782 belongs to the mid-range 14-bit instruction family. The 'LC' suffix denotes the low-voltage / low-power process variant, while the 'C' suffix indicates the OTP program memory technology (vs. 'F' for Flash).
Key features include 35 instruction set (most single-cycle), 200 ns instruction cycle time at 20 MHz, 8-bit ADC with up to 8 input channels, two analog comparators, a Capture/Compare/PWM module, a USART with on-chip baud-rate generator, a watchdog timer with on-chip RC oscillator, and an internal/external oscillator selection. The 20-pin DIP package provides breadboard-friendly prototyping and supports both commercial and industrial temperature grades (the -I suffix indicates -40 °C to +85 °C).
The PIC16LC782 architecture uses a 14-bit-wide instruction word and an 8-bit data path with a 32-level hardware stack. Brown-out reset (BOR), power-on reset (POR), and an in-circuit serial programming (ICSP) interface are standard. Low-power features include SLEEP mode with multiple wake-up sources and an on-chip 4 MHz RC oscillator option that lets the system boot without an external crystal.
Typical applications include appliance and white-goods control, automotive interior modules, lighting controllers, power supplies with analog monitoring, motor-control front-ends, security and alarm panels, and industrial sensor-interface nodes. The integrated ADC plus comparator pair makes the PIC16LC782 especially useful for closed-loop analog control where a single-chip solution simplifies the BOM.
When designing with this part, ensure Vdd decoupling (100 nF + bulk) is placed within 5 mm of the power pins, and add a 4.7 kOhm pull-up on MCLR if not driven by a dedicated supervisor. For reliable in-system programming, route ICSPCLK/ICSPDAT traces away from switching nodes and keep them shorter than 50 mm.
This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC782-I/P — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LC782-I/P (cùng hình factor và footprint) — khác nhau ở Package, RoHS Status, Mounting Type, ADC, Analog Comparators.
PIC16LC782-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC781-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC717-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F684-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F627A-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC782-I/P Tỷ lệ tối đa & tính chất điện
| Core | PIC16 8-bit RISC (Harvard) |
| Instruction Set | 35 instructions, 14-bit word |
| Program Memory | 3.5 KB OTP |
| Data RAM | 128 bytes |
| Data EEPROM | Not specified (OTP family) |
| Maximum Clock Speed | 20 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz |
| I/O Pins | 16 digital I/O |
| ADC | 8-bit, multiple channels |
| Analog Comparators | 2 (per datasheet) |
| Timers | Multiple 8/16-bit timers |
| PWM / CCP | Capture/Compare/PWM module |
| Communication | USART (SCI) with on-chip BRG |
| Operating Voltage | 3.0 V to 5.5 V (LC low-voltage variant) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, -I suffix) |
| Hộp | 20-pin PDIP (0.300 in / 7.62 mm) |
| Kiểu lắp đặt | Through-Hole (DIP) |
| In-Circuit Programming | ICSP (2-wire) |
| Brown-Out Reset / POR | Yes |
| Watchdog Timer | On-chip WDT with dedicated RC oscillator |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LC782-I/P
| Chân 1 | MCLR/Vpp — Master clear / programming voltage input |
| Chân 2 | RA0/AN0 — Digital I/O / analog input 0 |
| Chân 3 | RA1/AN1 — Digital I/O / analog input 1 |
| Chân 4 | RA2/AN2 — Digital I/O / analog input 2 |
| Chân 5 | RA3/AN3/Vref — Digital I/O / analog input 3 / ADC reference |
| Chân 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Digital I/O / analog input 4 / SPI slave select |
| Chân 8 | Vss — Ground |
| Chân 9 | OSC1/CLKIN — Crystal oscillator input / external clock |
| Chân 10 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Chân 11 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock input |
| Chân 12 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 |
| Chân 13 | RC2/CCP1 — Digital I/O / Capture-Compare-PWM 1 |
| Chân 14 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| Chân 16 | RC5/SDO — Digital I/O / SPI data out |
| Chân 17 | RC6/TX/CK — Digital I/O / USART TX / clock |
| Chân 18 | RC7/RX/DT — Digital I/O / USART RX / data |
| Chân 19 | Vss — Ground (secondary) |
| Chân 20 | Vdd — Positive supply |
Ứng dụng tiêu biểu
PIC16LC782-I/P phù hợp cho 6 Áp dụngs: Appliance and White-Goods Control, Lighting Controllers and LED Drivers, Power Supply and Battery Charger Monitoring, Industrial Sensor Interface Nodes, Security and Alarm Panels, Automotive Interior and Body Modules.
Appliance and White-Goods Control
The PIC16LC782-I/P's 3.5KB OTP memory, 128 bytes of RAM, and integrated 8-bit ADC plus PWM/CCP module suit it to appliance controllers where one-chip BOM simplification matters. Its 20 MHz PIC16 mid-range core delivers 5 MIPS, sufficient for control loops in washing-machine timers, microwave UI boards, and dishwasher controllers. The 3.0-5.5V operating range tolerates both 3.3V sensor rails and 5V relay-driver stages, while the 16 I/O pins directly drive LED indicators, keypads, and triac optocouplers. The industrial -40 to +85 C temperature range covers unheated appliance compartments. Brown-out reset and watchdog timer provide field reliability needed for unattended appliance deployments.
Được đề xuất
Lighting Controllers and LED Drivers
The PIC16LC782-I/P's analog-rich peripherals (8-bit ADC, two comparators, PWM/CCP) fit dimmer and color-mixing controllers for architectural and stage lighting. Its PWM output drives MOSFET gate drivers or constant-current LED regulators, while the ADC samples photodiodes or 0-10V analog dim inputs. Operating from 3.0-5.5V allows direct connection to 3.3V-only LED driver ICs and DMX receiver chips. SLEEP mode plus the on-chip 4 MHz RC oscillator enable standby power below 1 mA for ENERGY STAR-compliant fixtures. Industrial temperature grade ensures reliability in enclosed luminaires with elevated ambient.
Được đề xuất
Power Supply and Battery Charger Monitoring
The PIC16LC782-I/P's integrated ADC, comparators, and PWM module make it a low-cost supervisor MCU for switched-mode power supplies and linear chargers. The ADC monitors output voltage and current via resistor dividers and shunt amplifiers, while the comparator triggers fast protection shutoff for over-current events. The USART reports telemetry to a host system or display panel. Wide 3.0-5.5V operation allows direct rail attachment at 3.3V or 5V without level shifters. The 20 MHz core runs state-machine charge algorithms (CC/CV profiles for Li-Ion) with timing margins sufficient for cycle-accurate PWM at 100 kHz switching frequencies.
Được đề xuất
Industrial Sensor Interface Nodes
The PIC16LC782-I/P's 8-channel 8-bit ADC, two analog comparators, and USART fit compact 4-20 mA or 0-10 V sensor-transmitter designs for industrial nodes. The PIC16 mid-range core runs linearization math for RTD, thermocouple, or bridge-pressure sensors with cycle budget to spare. The wide 3.0-5.5V supply supports loop-powered 4-20 mA architectures when paired with a switching regulator. Watchdog timer and brown-out reset provide field reliability in electrically noisy factories. Industrial -40 to +85 C temperature grade supports outdoor and panel-mount deployments without additional thermal conditioning.
Được đề xuất
Security and Alarm Panels
The PIC16LC782-I/P integrates enough peripherals to act as the central controller in small burglar-alarm panels or fire-alarm annunciators. The 16 I/O pins interface to PIR motion sensors, reed switches, keypads, sirens, and dialers; the USART links to GSM or PSTN modules for off-premises signaling. SLEEP mode plus the on-chip 4 MHz RC oscillator enable long battery standby life, while brown-out reset and watchdog timer guard against lockup. The OTP program memory prevents firmware reverse-engineering, an advantage for tamper-resistant security equipment. Wide operating voltage allows operation from backup battery (3.0 V cutoff) without level shifting.
Được đề xuất
Automotive Interior and Body Modules
The PIC16LC782-I/P's 16 I/O pins, PWM outputs, and ADC channels suit it to body-control sub-modules such as seat controllers, mirror adjusters, and interior lighting drivers. The PIC16 mid-range core executes debounced switch inputs and drives relay or MOSFET bridges with 5 MIPS throughput. The 3.0-5.5V operation tolerates 12V battery transients when paired with an external LDO or TVS protection. Brown-out reset and watchdog timer support OEM reliability requirements. Note that the standard -I grade is not AEC-Q100 qualified; for safety-critical or under-hood nodes, designers should migrate to the PIC16F1xxx Q-grade portfolio.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC782-I/P — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LC782-I/SO | PIC16LC781-I/SO | PIC16LC717-I/SO | PIC16F684-I/P | PIC16F627A-I/P |
|---|---|---|---|---|---|---|
| Package | PDIP-20 (P) | SOIC-20 (SO) | SOIC-20 (SO) | SOIC-20 (SO) | PDIP-20 (P) | PDIP-20 (P) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | Larger OTP (per datasheet) | Flash (Flash > OTP for field update) | Flash (Flash > OTP for field update) |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 256 bytes (per datasheet) | 128 bytes | 224 bytes |
| Max Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.0 V to 5.5 V (wider) | 2.0 V to 5.5 V (wider) |
| ADC | 8-bit, multi-channel | 8-bit | 8-bit | 8-bit | 8-bit, more channels | No ADC / comparator-based |
| PWM / CCP | CCP1, CCP2 + enhanced | Same | Reduced CCP set | Multiple CCP | Enhanced PWM | CCP1 only |
Bảo phân biệt quan trọng
- 3.5 KB OTP memory at lowest cost-per-bit vs Flash equivalents (vsPIC16F684-I/P)
- Industrial temperature grade (-40 to +85 C) included by default (vsPIC16C782-I/P (commercial-only legacy))
- Integrated analog-rich peripherals (8-bit ADC + 2 comparators + CCP) (vsPIC16F627A-I/P)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of the Vdd pin (pin 20) and a 10 uF bulk tantalum or aluminum capacitor on the same rail. The PIC16LC782 has no internal voltage regulator; for designs powered from a 12 V or 24 V rail, add an external 3.3 V or 5 V LDO (e.g., MCP1700) before the MCU. The PIC16LC782 draws < 2 mA active at 20 MHz / 5 V, but the A/D and comparator blocks add transient currents during conversions - the bulk cap prevents Vdd droop during ADC sampling.
Use a 4.7 kOhm pull-up resistor on MCLR (pin 1) tied to Vdd, since this pin is a Schmitt trigger input with internal weak pull-up but Microchip recommends an external pull-up for production boards. For in-circuit serial programming (ICSP), bring ICSPCLK and ICSPDAT (typically RB6/RB7 on similar PIC16 mid-range devices) to a 6-pin header, and route these traces away from switching nodes (relay coils, motor drivers) with at least 3 mm of clearance to avoid programming glitches.
Do not exceed 5.5 V on Vdd - the LC variant's max rating is 5.5 V. Driving outputs above the source/sink ratings (25 mA per pin, 200 mA total per port) can cause latch-up; aggregate port current must stay within Microchip's published absolute maximum. Note that OTP memory cannot be erased once programmed - the LC782 is intended for production volumes with finalized firmware, not for development. Use a PIC16F684 or PIC16F627A Flash equivalent during prototyping to avoid wasting OTP units.
Thông tin tuân thủ
RoHS compliance per Microchip product page. Not AEC-Q100 qualified - migrate to Q-grade PIC16F1xxx for automotive safety-critical applications. Halogen-free status not stated in available data.
