PIC16LC65BT-04I/L - 8-bit MCU, 4MHz, 7KB OTP, 44-PLCC | Microchip
MPN: PIC16LC65BT-04I/L ✓ Hoạt độngPIC16LC65BT-04I/L Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, RAM, and peripherals. The PIC16CXX mid-range architecture is one of three PIC lineages (base-line, mid-range, enhanced mid-range) and provides a 14-bit instruction word, 8-bit data path, and a hardware stack that balances code density with deterministic interrupt latency. Mid-range PICs remain popular in industrial control, sensor interfaces, and brown-out-aware embedded designs.
Key features of the PIC16LC65BT-04I/L include three timer modules (Timer0 8-bit with prescaler, Timer1 16-bit with prescaler and external clock capability, Timer2 8-bit), a 5-channel 8-bit ADC, two PWM outputs, and an industrial operating temperature range of -40C to +85C. The -04 speed suffix designates a 4 MHz oscillator input, while the 'T' suffix indicates tape-and-reel packaging. The 'I' industrial temperature grade and 'L' package code (44-PLCC) are factory-burned identifiers per Microchip ordering nomenclature.
The architecture uses a Harvard design with separate program and data buses, allowing simultaneous instruction fetch and data access. The 14-bit instruction set delivers compact code density, while the single-cycle ALU architecture provides predictable timing for real-time control loops. Internal brown-out reset and power-on reset simplify external supervision circuits.
Typical applications include industrial automation controllers, sensor signal conditioning, motor drive interface boards, HVAC fan/valve controllers, and embedded human-machine interface panels. The PIC16CXX mid-range family is widely deployed in brown-out-sensitive industrial systems and in legacy designs where 5V tolerance and PIC instruction-set familiarity are required.
When designing with this device, ensure decoupling capacitors are placed close to VDD/VSS pins and that the oscillator layout follows Microchip AN588 guidelines. Industrial-grade parts require a clean analog supply for ADC accuracy, so route AVSS and AGND traces separately from noisy digital returns.
This page synthesizes distributor pricing, drop-in PLCC-44 alternatives, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a single consolidated reference for sourcing and qualifying the PIC16LC65BT-04I/L in production.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC65BT-04I/L — 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 PIC16LC65BT-04I/L (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Program Memory Type, ADC, Communication Interfaces, RAM Size.
PIC16LC65B-04I/L
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65B-04/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65A-04I/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65AT-04I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C65B-04/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65BT-04I/L Tỷ lệ tối đa & tính chất điện
| Product Family | PIC 16C Mid-Range MCU |
| Core Architecture | 8-bit RISC (Harvard) |
| Instruction Set | 14-bit PIC mid-range |
| Program Memory Size | 7 KB (4K x 14) OTP |
| RAM Size | 192 x 8 bytes |
| Tần số xung maksimum | 4 MHz (-04 speed grade) |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 33 |
| Communication Interfaces | I2C, SPI, USART |
| Timers | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) |
| ADC | 8-bit, 5 channels |
| PWM Channels | 2 |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Package Type | 44-pin PLCC (J-Lead) |
| Package Dimensions | 16.59 x 16.59 mm |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân PIC16LC65BT-04I/L
| Chân 1 | MCLR — Master Clear (reset) input |
| Chân 2 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| Chân 5 | RA3/AN3/VREF+ — Port A bit 3 / Analog input 3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / Analog input 4 / SPI Slave Select |
| Chân 8 | AVSS — Analog ground |
| Chân 9 | AVDD — Analog supply voltage |
| Chân 10 | OSC1/CLKIN — Oscillator input / external clock |
| Chân 11 | OSC2/CLKOUT — Oscillator output |
| Chân 12 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 13 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / CCP2 PWM |
| Chân 14 | RC2/CCP1 — Port C bit 2 / CCP1 PWM output |
| Chân 15 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 16 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 17 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 18 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Chân 19 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| Chân 20 | VSS — Digital ground |
| Chân 21 | VDD — Digital supply voltage |
| Chân 22 | RB0/INT — Port B bit 0 / External interrupt |
| Chân 23 | RB1 — Port B bit 1 |
| Chân 24 | RB2 — Port B bit 2 |
| Chân 25 | RB3 — Port B bit 3 |
| Chân 26 | RB4 — Port B bit 4 |
| Chân 27 | RB5 — Port B bit 5 |
| Chân 28 | RB6 — Port B bit 6 |
| Chân 29 | RB7 — Port B bit 7 |
| Chân 30 | NC — Not connected |
| Chân 31 | NC — Not connected |
| Chân 32 | NC — Not connected |
| Chân 33 | NC — Not connected |
| Chân 34 | NC — Not connected |
| Chân 35 | NC — Not connected |
| Chân 36 | NC — Not connected |
| Chân 37 | NC — Not connected |
| Chân 38 | NC — Not connected |
| Chân 39 | NC — Not connected |
| Chân 40 | NC — Not connected |
| Chân 41 | RE0/RD — Port E bit 0 / Parallel slave port read |
| Chân 42 | RE1/WR — Port E bit 1 / Parallel slave port write |
| Chân 43 | RE2/CS — Port E bit 2 / Parallel slave port chip select |
| Chân 44 | VSS — Digital ground |
Ứng dụng tiêu biểu
PIC16LC65BT-04I/L phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Sensor Signal Conditioning Hubs, HVAC Fan and Valve Controllers, Motor Drive Interface Boards, Embedded HMI Panels, Legacy Brown-Out Sensitive Systems.
Industrial Automation Controllers
The PIC16LC65BT-04I/L fits industrial automation controllers with its -40 C to +85 C industrial temperature range, 33 bidirectional I/O pins, and integrated USART. The 7 KB OTP memory is sufficient for PID loop sub-routines, sensor polling, and actuator control logic in PLC sub-modules. Its 2.5 V to 5.5 V supply supports both 24 V-derived 5 V and 3.3 V mixed-rail designs common on factory floors. Compared to a 16-bit MCU, the 8-bit PIC delivers deterministic interrupt latency critical for real-time control loops.
Được đề xuất
Sensor Signal Conditioning Hubs
The PIC16LC65BT-04I/L serves as a sensor signal conditioning hub, leveraging its 5-channel 8-bit ADC and I2C/SPI interfaces to aggregate multiple analog and digital sensors. The PIC16C mid-range core's deterministic 1 MIPS performance at 4 MHz enables tight sampling loops for thermistor, strain-gauge, and pressure-sensor front-ends. The 192-byte RAM is adequate for moving-average filters and peak-detection buffers before UART transmission to a host controller.
Được đề xuất
HVAC Fan and Valve Controllers
The PIC16LC65BT-04I/L is well-suited to HVAC fan and valve controllers where its industrial temperature rating, two PWM channels, and 5-channel ADC simplify closed-loop fan-speed and damper-position regulation. The 7 KB OTP accommodates look-up tables for non-linear damper curves and EEPROM-emulation storage for calibration constants. Brown-out reset and power-on reset integrated on-chip reduce external supervisory components, lowering BOM cost in high-volume HVAC OEM runs.
Được đề xuất
Motor Drive Interface Boards
The PIC16LC65BT-04I/L operates as a motor drive interface board controller, using its USART for RS-485 communication with a central PLC and its PWM channels for speed-reference signals to gate drivers. The 33 I/O pins accommodate enable inputs, fault-flag outputs, and Hall-effect sensor feedback. The PIC mid-range architecture's deterministic timing simplifies encoder pulse-counting routines used in brushless DC motor commutation sequences.
Được đề xuất
Embedded HMI Panels
The PIC16LC65BT-04I/L drives embedded HMI panel logic, including button-scan matrices, LED/PWM backlight control, and SPI-attached character LCD interfaces. With 33 I/O, the device can scan a 4x4 keypad, drive status LEDs, and communicate with a host display controller via USART. The 7 KB OTP holds finite-state-machine logic for menu navigation, while the 192-byte RAM supports keypad debounce buffers and display-refresh scratch space.
Được đề xuất
Legacy Brown-Out Sensitive Systems
The PIC16LC65BT-04I/L is ideal for brown-out sensitive legacy systems that require reliable 5 V operation across industrial voltage fluctuations. Its on-chip brown-out reset and power-on reset eliminate external reset supervisors, simplifying PCB layout in space-constrained retrofits. The PIC16C mid-range core's deterministic interrupt latency and stable 5 V tolerance make it a drop-in replacement for aging PIC16C65 designs where software compatibility is mandatory.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC65BT-04I/L — 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 | PIC16LC65B-04I/L | PIC16LC65B-04/PQ | PIC16LC65A-04I/PQ | PIC16LC65AT-04I/PT | PIC16C65B-04/PQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-PLCC (J-Lead) | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC family - same | 44-PLCC - same |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 4.5 V to 5.5 V |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Industrial (-40 C to +85 C) | Industrial | Commercial | Industrial | Industrial | Commercial |
| Packaging Code | Tape & Reel (T) | Tray | Tray | Tray | Tape & Reel | Tray |
Bảo phân biệt quan trọng
- OTP program memory supports field-programmable one-time-write code deployment (vsPIC16C65B-04/PQ)
- Industrial temperature grade for factory-floor deployment (vsPIC16LC65B-04/PQ)
- Surface-mount 44-PLCC J-Lead package compatible with standard PLCC sockets (vsPIC16LC65AT-04I/PT)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair on the PIC16LC65BT-04I/L, plus a bulk 10 uF tantalum or ceramic at the package entry point. For analog references, decouple AVDD/AVSS separately with 100 nF and 10 uF to suppress ADC switching noise. The brown-out reset threshold is factory-trimmed but verify against worst-case 24 V industrial rails after PCB layout.
Route the 4 MHz oscillator traces (OSC1/OSC2) over a continuous ground plane and keep them shorter than 20 mm to minimize EMI and stray capacitance. Place crystal loading capacitors within 3 mm of the oscillator pins. Avoid routing digital switching signals parallel to OSC1/OSC2 to prevent injection of jitter into the system clock.
Do not exceed 5.5 V on VDD - although the LC variant supports 2.5 V to 5.5 V, momentary over-voltage during hot-plug events can latch the MCU. Always use the MCLR pin with a proper 10 kohm pull-up to VDD rather than leaving it floating; floating MCLR is a common cause of erratic brown-out behavior in field returns.
Thông tin tuân thủ
ROHS, REACH, lead-free, and halogen-free status not provided in verified web data; AEC-Q100 not applicable for non-automotive MCU.
