PIC16LC65B-04I/PT - 8-bit MCU 7KB OTP 192 RAM 33 I/O | Microchip
MPN: PIC16LC65B-04I/PT ✓ Hoạt độngPIC16LC65B-04I/PT Tóm tắt
Key features include an industrial operating temperature range of -40C to +85C (denoted by the "I" suffix), low-power CMOS design suitable for battery-aware systems, integrated peripherals typical of the PIC16C6x family (timers, USART, capture/compare/PWM, and analog comparator), and an OTP program memory that is one-time programmable for low-to-medium volume production. The 44-TQFP (PT) package measures 10x10 mm and is supplied in tray packaging for prototyping and low-volume builds.
In the broader taxonomy, the PIC16LC65B belongs to the PIC16 mid-range MCU family, which sits under the PIC16Cxx OTP/EPROM branch of Microchip's 8-bit PIC microcontroller portfolio. Compared with PIC16F flash parts (e.g., PIC16F884), the "LC" OTP variant trades in-system re-programmability for lower unit cost in volume production, while remaining pin-for-pin compatible within the 44-TQFP (PT) footprint for many F/LC family members.
Typical applications include industrial control panels, appliance controllers, sensor interfaces, low-cost data-acquisition front-ends, and any 8-bit control task where the developer values the PIC16 mid-range instruction set and ecosystem (MPLAB X IDE, MPASM, XC8 compiler) over modern Cortex-M0 alternatives. The PIC16LC65B-04I/PT is also commonly used as a pin-compatible second-source for the PIC16C65B-04I/PT in designs where extended lead-time has driven a switch to the LC variant.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC65B-04I/PT — 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 PIC16LC65B-04I/PT (cùng hình factor và footprint) — khác nhau ở Communication Interfaces, Core Architecture, Package, Program Memory Size, Program Memory Type.
PIC16LC65BT-04I/PT
✅ 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 →PIC16LC65B-04/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F884-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65B-04I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC16 RISC |
| Family | PIC16CXX mid-range |
| Program Memory Size | 7 KB (4K x 14) OTP |
| RAM Size | 192 bytes |
| Number of I/O Pins | 33 |
| Tần số xung maksimum | 4 MHz ("04" speed grade) |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (industrial, "I" grade) |
| Instruction Set | 35 single-word instructions |
| Instruction Cycle Time | 1 cycle (200 ns at 20 MHz); 2 cycles for branches |
| Data EEPROM | Not present (OTP family) |
| Package Type | 44-pin TQFP (PT), 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
Cấu hình chân PIC16LC65B-04I/PT
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage input |
| 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 / VREF+ |
| 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 | VSS — Ground |
| Chân 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 10 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Chân 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Chân 13 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| Chân 14 | RC3/SCK/SCL — PORTC bit 3 / SPI SCK / I2C SCL |
| Chân 15 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| Chân 16 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| Chân 17 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| Chân 18 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| Chân 19 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| Chân 20 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| Chân 21 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| Chân 22 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| Chân 23 | VSS — Ground |
| Chân 24 | RC4/SDI/SDA — PORTC bit 4 / SPI SDI / I2C SDA |
| Chân 25 | RC5/SDO — PORTC bit 5 / SPI SDO |
| Chân 26 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Chân 27 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Chân 28 | RE0/RD/AN5 — PORTE bit 0 / parallel slave port read / analog input 5 |
| Chân 29 | RE1/WR/AN6 — PORTE bit 1 / parallel slave port write / analog input 6 |
| Chân 30 | RE2/CS/AN7 — PORTE bit 2 / parallel slave port CS / analog input 7 |
| Chân 31 | VDD — Positive supply voltage |
| Chân 32 | VSS — Ground |
| Chân 33 | RB0/INT — PORTB bit 0 / external interrupt |
| Chân 34 | RB1 — PORTB bit 1 |
| Chân 35 | RB2 — PORTB bit 2 |
| Chân 36 | RB3/PGM — PORTB bit 3 / low-voltage programming input |
| Chân 37 | RB4 — PORTB bit 4 |
| Chân 38 | RB5 — PORTB bit 5 |
| Chân 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 41 | VSS — Ground |
| Chân 42 | VDD — Positive supply voltage |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16LC65B-04I/PT phù hợp cho 6 Áp dụngs: Industrial Control Panels, Appliance Controllers, Sensor Interface Front-Ends, Low-Cost Data Acquisition, Consumer Electronics Hubs, Educational and Hobbyist Development.
Industrial Control Panels
The PIC16LC65B-04I/PT is well matched to industrial control panels because its 33 digital I/O pins drive relays, opto-isolated inputs, keypads, and 7-segment displays without external I/O expanders. The industrial -40C to +85C operating range handles factory-floor temperature swings, while the 3.0-5.5 V supply tolerates 24 V->5 V post-regulation rails. Its deterministic 1-cycle RISC execution keeps scan-loop latency predictable for PLC-style ladder replacement.
Được đề xuất
Appliance Controllers
In washing machines, dishwashers, and microwave ovens, the PIC16LC65B-04I/PT coordinates keypad scanning, display multiplexing, sensor sampling (temperature, water level, door switch), and motor/valve actuation. Its 7 KB OTP program memory fits full state-machine firmware for mid-complexity appliances, and the OTP cost advantage supports sub-$5 BOM targets. The 4 MHz clock is sufficient for typical 10 ms control loops.
Được đề xuất
Sensor Interface Front-Ends
The PIC16LC65B-04I/PT reads multiple low-speed analog sensors through its analog comparator and external ADC, and outputs the processed data over USART to a host controller. With 33 I/O and a 192-byte RAM, it can serve as a polled sensor hub for HVAC duct sensors, environmental monitors, or simple energy-meter sub-systems. The PIC16 mid-range instruction set is compact enough that the entire sensor stack fits in 7 KB.
Được đề xuất
Low-Cost Data Acquisition
For 8-bit data-acquisition front-ends, the PIC16LC65B-04I/PT digitizes sensor signals and streams them via USART to a host PC or embedded gateway. The 33 I/O pins accept multiple discrete inputs simultaneously, while the deterministic instruction timing simplifies sample-rate budgeting. The industrial temperature grade supports deployment in unattended outdoor enclosures for telemetry pilots.
Được đề xuất
Consumer Electronics Hubs
The PIC16LC65B-04I/PT serves as the user-interface controller in mid-range consumer products - toys, fitness equipment, audio mixers - where it scans buttons, drives LED or LCD displays, and bridges to a main processor via USART. The OTP cost advantage suits consumer BOMs, and the 33 I/O accommodate matrix keypads and indicator arrays. Industrial temperature headroom simplifies global regulatory compliance.
Được đề xuất
Educational and Hobbyist Development
The PIC16LC65B-04I/PT is a classic teaching platform for embedded systems courses, exposing students to the PIC16 mid-range RISC ISA, OTP programming flow, and TQFP hand-soldering practice. Its rich peripheral set (timers, USART, CCP, comparator) supports lab exercises on interrupts, PWM, and serial communication without overwhelming beginners. The MPLAB X IDE and XC8 compiler toolchain are free for educational use.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC65B-04I/PT — 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 | PIC16LC65BT-04I/PT | PIC16LC65A-04I/PQ | PIC16LC65A-04I/P | PIC16LC65B-04/PT | PIC16F884-I/PT |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT), 10x10 mm | 44-pin TQFP (PT) - same | 44-pin MQFP (PQ) - same pinout | 40-pin PDIP (P) - different body | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Program Memory | 7 KB (4K x 14) OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB Flash |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 256 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 36 |
| Max Clock Speed | 4 MHz ("04" grade) | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Supply 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 | 3.0 V to 5.5 V | 2.0 V to 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 | 0 C to +70 C (commercial) | -40 C to +85 C |
| Memory Type | OTP (one-time programmable) | OTP | OTP | OTP | OTP | Flash (field re-programmable) |
Bảo phân biệt quan trọng
- Industrial-grade OTP MCU with rich 33 I/O peripheral set (vsPIC16LC63A-04I/SS)
- Lower per-unit cost versus flash-based PIC16F cousins (vsPIC16F884-I/PT)
- Wider supply range down to 3.0 V vs older 5 V-only PIC16C6x (vsPIC16C65B-04I/PT)
Ghi chú thiết kế
Estimated: at VDD = 5.0 V and 4 MHz active clock, the PIC16LC65B-04I/PT typical supply current is roughly 2-5 mA (datasheet DC characteristic chart; consult DS30230D for exact figures). Place a 100 nF decoupling capacitor within 5 mm of the VDD pins (31 and 42) and a bulk 10 uF tantalum or ceramic capacitor near the package. Industrial designs should also include a power-on reset circuit or rely on the internal POR, with proper MCLR pull-up (10 kohm to VDD) to avoid spurious resets during brown-out.
For the 44-pin TQFP (PT) body (0.8 mm pitch, 10x10 mm), route all signal traces on inner layers and flood the top/bottom copper under the package as a thermal and ground plane. Place the decoupling capacitors on the same side as the MCU with the ground pad tied directly to the ground plane via multiple vias. The OSC1/OSC2 traces should be kept short and surrounded by ground pour; for crystal operation, the load capacitors (typically 15-33 pF) must be placed as close as possible to the oscillator pins.
Three common pitfalls: (1) confusing the "04" speed grade with the "10" or "20" grade - the LC65B-04I/PT only supports 4 MHz, so firmware timing loops must respect this. (2) Mistaking LC for EPROM-windowed - the LC is OTP only, so production firmware must be fully validated before programming. (3) Forgetting that the 44-TQFP shares its pinout with the 44-MQFP (PQ) and 40-PDIP (P) variants, but only at the electrical-pin level - mechanical footprints differ, so a layout designed for TQFP will not solder to a PDIP board.
Estimated: the 44-TQFP (PT) thermal resistance theta_JA is approximately 50-60 C/W on a standard JEDEC 4-layer test board (consult the package thermal characteristics for exact values). For industrial-grade parts running at ambient +85 C, the maximum junction temperature of +150 C leaves only 65 C of margin, which is comfortable at low duty cycles but can be exceeded if the MCU drives high-current loads directly through PORTB/C/D pins. For high-I/O designs, buffer the outputs with external drivers (ULN2003, 74HC595).
Thông tin tuân thủ
Lead-free finish per Microchip product family documentation. RoHS/REACH/halogen-free status not explicitly stated in the verified distributor excerpts; check the Microchip product page or the material declaration sheet for the lot-specific declaration. AEC-Q100 not applicable - this is a general-purpose industrial MCU.