PIC16LC65BT-04I/PQ - 8-Bit 7KB MCU 44-MQFP | Microchip
MPN: PIC16LC65BT-04I/PQ ✓ Hoạt độngPIC16LC65BT-04I/PQ Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces. Within the broader semiconductor hierarchy, MCUs sit under microcontrollers -> embedded processors -> computing ICs -> integrated circuits. PIC16-series MCUs use Microchip's enhanced mid-range RISC architecture, providing deterministic instruction execution ideal for real-time control loops where predictable timing matters more than raw clock speed.
Key features include a hardware USART with addressable SPI and I2C (MSSP-style) serial peripherals, a 5-channel 8-bit ADC, programmable code protection, and an industrial temperature rating of -40 °C to +85 °C. The OTP program memory is factory- or device-programmable for volume production, while the 192-byte SRAM supports modest data-table and stack operations typical of mid-range 8-bit control firmware.
Typical applications include industrial automation controllers, consumer-electronics user-interface boards, automotive body and HVAC sub-systems, appliance motor control, and low-bandwidth sensor-hub nodes. The wide 2.5 V–5.5 V input range makes the part tolerant of unregulated battery or USB-derived rails.
When designing with this device, allocate the 33 I/O pins carefully against the analog and digital requirements, and respect the 4 MHz oscillator ceiling at 5 V. For code-protection requirements, evaluate Windowed (CERDIP) or QFP variants against your programming strategy. This page synthesizes distributor availability, drop-in alternatives, and practical design notes not collected on the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC65BT-04I/PQ — 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/PQ (cùng hình factor và footprint) — khác nhau ở Core Architecture, Program Memory Type, Package, Timers, ADC.
PIC16LC65B-04I/PQ
✅ 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 →PIC16LC65A-04I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65A-04/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65AT-04I/PT
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Xem tài liệu →PIC16LC65BT-04I/PQ Tỷ lệ tối đa & tính chất điện
| Product Type | 8-Bit Microcontroller (MCU) |
| Series | PIC16CXX mid-range (PIC16C63A/65B/73B/74B family) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 192 bytes |
| CPU Speed | 4 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 8-bit, multi-channel (integrated) |
| Timers | Timer0 (8-bit), Timer1 (16-bit, sleep-increment), Timer2 (8-bit) |
| Communication Interfaces | USART, SPI, I2C |
| Hộp | 44-MQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 °C to +85 °C (Industrial) |
| Lifecycle Stage | ACTIVE |
Cấu hình chân PIC16LC65BT-04I/PQ
| Chân 1 | MCLR/VPP — Master Clear (Reset) input / Programming voltage |
| Chân 2 | RA0/AN0 — PORTA bit 0 / Analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / Analog input 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / Analog input 2 |
| Chân 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / ADC reference |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Chân 8 | OSC1/CLKIN — Oscillator input / External clock |
| Chân 9 | OSC2/CLKOUT — Oscillator output / Clock out |
| Chân 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / clock in |
| Chân 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Chân 12 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM1 |
| Chân 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 16 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Chân 17 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply (2.5 V - 5.5 V) |
| Chân 20 | VSS — Ground reference |
| Chân 21 | VDD — Positive supply (2.5 V - 5.5 V) |
| Chân 22 | RB0/INT — PORTB bit 0 / External interrupt |
| Chân 23 | RB1 — PORTB bit 1 |
| Chân 24 | RB2 — PORTB bit 2 |
| Chân 25 | RB3 — PORTB bit 3 |
| Chân 26 | RB4 — PORTB bit 4 |
| Chân 27 | RB5 — PORTB bit 5 |
| Chân 28 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 29 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 30 | VSS — Ground reference |
| Chân 31 | VDD — Positive supply (2.5 V - 5.5 V) |
| Chân 32 | RD0 — PORTD bit 0 |
| Chân 33 | RD1 — PORTD bit 1 |
| Chân 34 | RD2 — PORTD bit 2 |
| Chân 35 | RD3 — PORTD bit 3 |
| Chân 36 | RD4 — PORTD bit 4 |
| Chân 37 | RD5 — PORTD bit 5 |
| Chân 38 | RD6 — PORTD bit 6 |
| Chân 39 | RD7 — PORTD bit 7 |
| Chân 40 | VSS — Ground reference |
| Chân 41 | VDD — Positive supply (2.5 V - 5.5 V) |
| Chân 42 | RE0/RD — PORTE bit 0 / Parallel slave port read |
| Chân 43 | RE1/WR — PORTE bit 1 / Parallel slave port write |
| Chân 44 | RE2/CS — PORTE bit 2 / Parallel slave port chip select |
Ứng dụng tiêu biểu
PIC16LC65BT-04I/PQ phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, Consumer Electronics User Interface Boards, Automotive Body and HVAC Sub-Systems, Appliance Motor Control (BLDC/PWM), Low-Bandwidth Sensor Hub Nodes, Battery-Powered Measurement Instruments.
Industrial Automation Controllers
The PIC16LC65BT-04I/PQ fits industrial automation controllers because of its 33 I/O pins, 4 MHz CPU, and -40 °C to +85 °C industrial temperature rating. The wide 2.5 V–5.5 V supply tolerates unregulated 24 V->5 V rails common on factory PLC backplanes, while the integrated 8-bit ADC handles analog sensor inputs (temperature, pressure, flow) directly without an external converter. Compared with flash PICs, the OTP variant is favored when firmware is locked at MP launch and production volumes exceed 10K units, since OTP die cost is 30–50% lower. The PIC's deterministic RISC pipeline delivers consistent interrupt latency required by real-time PID loops driving conveyor motors, valve actuators, and relay sequencing.
Được đề xuất
Consumer Electronics User Interface Boards
The PIC16LC65BT-04I/PQ is well matched to consumer-electronics user-interface boards, including washing-machine control panels, microwave keypads, and HVAC thermostats. Its 33 I/Os can drive 7-segment displays, multiplexed key matrices, and rotary encoders simultaneously without external I/O expanders. The 192-byte RAM is ample for menu state machines, while the 7 KB OTP holds firmware for icons, beep patterns, and sensor-conditioning logic. Unlike flash MCUs, the OTP device prevents end-user firmware tampering and reduces BOM cost in high-volume SKUs, which is critical when consumer price-points drive design economics.
Được đề xuất
Automotive Body and HVAC Sub-Systems
The PIC16LC65BT-04I/PQ supports automotive body and HVAC sub-systems such as seat controllers, mirror adjusters, and climate-control modules, where its -40 °C to +85 °C industrial window covers most cabin-temperature use cases. The integrated SPI and I2C peripherals talk to dashboard sensors and actuator drivers, while the hardware USART enables LIN-bus-like slave communication via a LIN transceiver. Its 4 MHz core easily handles debounced switch scanning, PWM-driven blower motors, and lookup-table-based temperature compensation. The 44-MQFP package provides a robust surface-mount footprint suited to vibration-prone automotive PCB environments.
Được đề xuất
Appliance Motor Control (BLDC/PWM)
The PIC16LC65BT-04I/PQ can drive appliance motor-control sub-circuits including PWM controllers for fans, pumps, and small universal motors in washing machines and dishwashers. Its Timer2 module generates accurate PWM with a programmable period, while the 8-bit ADC samples motor current and back-EMF for closed-loop speed control. The 33 I/Os are sufficient for H-bridge gate drivers, tachometer inputs, and safety interlocks. The 2.5–5.5 V supply allows direct connection to rectified mains-derived rails through low-cost regulators, simplifying the analog supply chain in cost-sensitive appliances.
Được đề xuất
Low-Bandwidth Sensor Hub Nodes
The PIC16LC65BT-04I/PQ suits low-bandwidth sensor-hub nodes that aggregate temperature, humidity, and contact-closure data in building-automation and asset-tracking deployments. Its hardware I2C and SPI ports allow direct attachment of digital temperature sensors (e.g., MCP9808), accelerometers, and EEPROM, while the USART links to RS-485 transceivers for multi-drop fieldbus wiring. The 7 KB OTP holds Modbus RTU frame builders, sensor-calibration tables, and CRC routines. The 192-byte RAM and deterministic mid-range pipeline let the device poll up to a dozen sensors at sub-second intervals without missing scheduled control cycles.
Được đề xuất
Battery-Powered Measurement Instruments
The PIC16LC65BT-04I/PQ can anchor battery-powered measurement instruments such as handheld multimeters, IR thermometers, and portable gas detectors, thanks to its low 2.5 V minimum supply that allows 2xAA or 2xAAA alkaline cells to power the system directly. The integrated 8-bit ADC with 5+ channels reads sensor bridges, while Timer1's sleep-increment capability enables low-power RTC-style timing without an external RTC chip. The 33 I/Os drive LCD segments, button matrices, and buzzer drivers. OTP memory protects proprietary calibration constants from being read back electrically, an important consideration for calibration-locked test instruments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC65BT-04I/PQ — 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/PQ | PIC16LC65A-04I/PQ | PIC16LC65AT-04I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (10x10) | 44-MQFP (10x10) - same | 44-MQFP (10x10) - same | 44-MQFP (10x10) - same |
| Program Memory | 7 KB (4K x 14) OTP | 7 KB (4K x 14) OTP | 7 KB (4K x 14) OTP | 7 KB (4K x 14) OTP |
| RAM Size | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| I/O Pins | 33 | 33 | 33 | 33 |
| CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage | 2.5 V - 5.5 V | 2.5 V - 5.5 V | 2.5 V - 5.5 V | 2.5 V - 5.5 V |
| Operating Temperature | -40 °C to +85 °C (Industrial) | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Bảo phân biệt quan trọng
- Industrial-temperature OTP MCU with 33 I/Os in 44-MQFP (vsPIC16LC65B-04/PQ)
- Tape-and-reel packaging revision for SMT production (vsPIC16LC65B-04I/PQ)
- Latest silicon revision vs older A-revision (vsPIC16LC65A-04I/PQ)
Ghi chú thiết kế
OTP program memory cannot be erased electrically - once a PIC16LC65BT-04I/PQ is programmed, the firmware is permanent. For prototype and pre-production builds, use a Windowed (CERDIP) variant (PIC16LC65BT-04I/JW) or a flash-based PIC from the same pinout family to allow code iteration. Only commit to OTP volume orders after firmware is fully validated, since a single OTP die with a firmware bug results in scrap, not rework.
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair of the PIC16LC65BT-04I/PQ (the 44-MQFP exposes 4 VDD and 4 VSS pins). Add a bulk 10 µF tantalum or ceramic near the package to suppress board-level noise during ADC conversions. Keep the MCLR/VPP trace short and route it away from the OSC1/OSC2 crystal traces to avoid false resets during high-current switching events on adjacent I/Os.
The PIC16LC65BT-04I/PQ draws significantly more current at 5 V than at 3.3 V when peripherals are active. For battery-powered designs, run the core at 3.3 V and gate peripheral power through a P-MOSFET controlled by an unused I/O pin. The brown-out reset (BOR) is enabled by configuration fuse - leave it enabled in industrial designs to ensure deterministic restart on supply droop below ~4 V at 5 V operation.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. AEC-Q100 not applicable for PIC16LC65 family (industrial grade, not automotive-qualified).
