PIC16LC65AT-04I/PT - 8-bit MCU, 7KB OTP, 4MHz, 44-TQFP | Microchip
MPN: PIC16LC65AT-04I/PT ✗ Cuối đờiPIC16LC65AT-04I/PT Tóm tắt
An OTP-based PIC16 microcontroller is a member of the 8-bit microcontroller family (PIC16 -> mid-range 8-bit MCU -> microcontroller -> embedded processor -> semiconductor). The "LC" prefix denotes the low-voltage CMOS variant, allowing operation across 2.5 V to 6.0 V system rails and suiting battery-backed instrumentation. The OTP program memory provides one-time programmable storage - ideal for mature, stable firmware in production where re-programmability is not required.
Key features include a Harvard RISC architecture with 35 single-word instructions, an 8-level deep hardware stack, an integrated Power-on Reset and Brown-out Reset, a Watchdog Timer with its own on-chip RC oscillator, and three I/O ports (PORTA/PORTB/PORTC). The PIC16CXX core delivers deterministic 4 MHz instruction throughput suitable for real-time control loops.
The part's 44-pin TQFP (PT) package exposes 33 digital I/O lines, three timer/counter modules, a synchronous/asynchronous USART, and a 5-channel 8-bit ADC. This peripheral combination supports moderate-complexity embedded designs such as motor control loops, sensor front-ends, and human-machine interfaces.
Typical applications include industrial process controllers, sensor signal conditioning front-ends, low-power instrumentation, motor control PWM drivers, and white-goods control boards. The -04I suffix specifies the 4 MHz speed grade and the industrial -40C to +85C operating temperature range. Designers select this part for mature, low-cost production builds where the OTP cost advantage outweighs the need for in-field re-programmability.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC65AT-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 PIC16LC65AT-04I/PT (cùng hình factor và footprint) — khác nhau ở Core Architecture, ADC, Communication Interfaces, Operating Temperature, Supply Voltage Range.
PIC16LC65B-04I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC65A-04I/PQ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC65A-04/PQ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC64AT-04I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65AT-04I/L
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65B-04I/PQ
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC65AT-04I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16CXX 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 192 x 8 bytes |
| Tần số xung maksimum | 4 MHz |
| Number of I/O Pins | 33 |
| Number of ADC Channels | 5 (8-bit) |
| Number of Timers | 3 |
| Communication Interfaces | USART/SCI |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp / Vỏ | 44-TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Instruction Set Width | 14-bit |
| Hardware Stack Depth | 8 levels |
| Watchdog Timer | Yes, dedicated on-chip RC oscillator |
| Brown-out Reset | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LC65AT-04I/PT
| Chân 1 | OSC1/CLKIN — Oscillator input / external clock input |
| Chân 2 | RA0/AN0 — Port A bit 0 / ADC input 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / ADC input 1 |
| Chân 4 | RA2/AN2 — Port A bit 2 / ADC input 2 |
| Chân 5 | RA3/AN3/VREF — Port A bit 3 / ADC input 3 / VREF |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / ADC input 4 / slave select |
| Chân 8 | VSS — Ground |
| Chân 9 | OSC2/CLKOUT — Oscillator output / clock output |
| Chân 10 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| Chân 11 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 |
| Chân 12 | RC2/CCP1 — Port C bit 2 / CCP1 |
| Chân 13 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — Port C bit 5 / SPI data out |
| Chân 16 | RC6/TX/CK — Port C bit 6 / USART TX / clock |
| Chân 17 | RC7/RX/DT — Port C bit 7 / USART RX / data |
| Chân 18 | RD0 — Port D bit 0 |
| Chân 19 | RD1 — Port D bit 1 |
| Chân 20 | RD2 — Port D bit 2 |
| Chân 21 | RD3 — Port D bit 3 |
| Chân 22 | RD4 — Port D bit 4 |
| Chân 23 | RD5 — Port D bit 5 |
| Chân 24 | RD6 — Port D bit 6 |
| Chân 25 | RD7 — Port D bit 7 |
| Chân 26 | VSS — Ground |
| Chân 27 | VDD — Positive supply |
| Chân 28 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 29 | RB1 — Port B bit 1 |
| Chân 30 | RB2 — Port B bit 2 |
| Chân 31 | RB3 — Port B bit 3 |
| Chân 32 | RB4 — Port B bit 4 |
| Chân 33 | RB5 — Port B bit 5 |
| Chân 34 | RB6/PGC — Port B bit 6 / ICSP clock |
| Chân 35 | RB7/PGD — Port B bit 7 / ICSP data |
| Chân 36 | RE0/RD — Port E bit 0 / parallel slave read |
| Chân 37 | RE1/WR — Port E bit 1 / parallel slave write |
| Chân 38 | RE2/CS — Port E bit 2 / parallel slave chip select |
| Chân 39 | AVDD — Analog positive supply |
| Chân 40 | AVSS — Analog ground |
| Chân 41 | MCLR/VPP — Master clear reset / programming voltage |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16LC65AT-04I/PT phù hợp cho 6 Áp dụngs: Industrial Process Controllers, Motor Control PWM Drivers, Sensor Signal Conditioning, White Goods Control Boards, Low-Power Instrumentation, Human-Machine Interface (HMI) Controllers.
Industrial Process Controllers
The PIC16LC65AT-04I/PT fits industrial process controllers because its 7 KB OTP program memory, 33 I/O lines, and USART interface deliver enough peripherals to drive sensor front-ends, 4-20 mA loop interfaces, and relay-actuated outputs. The 4 MHz core executes PID control loops at 1 MHz instruction rate with deterministic latency, while the three timer/counter modules support PWM for proportional valve control. The -40C to +85C industrial temperature range and 2.5-6.0 V supply allow deployment on factory floors with 24 V or 5 V system rails. Its low cost supports high-volume production of PLCs, motor starters, and sensor signal conditioners where the OTP cost advantage outweighs the need for in-field re-programmability.
Được đề xuất
Motor Control PWM Drivers
The PIC16LC65AT-04I/PT fits brushed-DC and stepper motor control because its three timer/counter blocks drive PWMP outputs for PWM generation up to 10 kHz, and the 33 I/O lines handle quadrature encoder feedback, H-bridge control, and current-sense inputs. The 4 MHz core executes the commutation interrupt service routine within 5 microseconds per commutation event, well within the typical 50-microsecond cycle time of motor PWM loops. The 8-bit ADC samples motor current at up to 100 kS/s, while the USART streams telemetry to a host controller. The 2.5-6.0 V supply operates directly from battery or 5 V logic rails, making it ideal for portable and industrial motor drives.
Được đề xuất
Sensor Signal Conditioning
The PIC16LC65AT-04I/PT fits sensor signal-conditioning front-ends because its 5-channel 8-bit ADC digitizes up to five analog sensors simultaneously at up to 100 kS/s aggregate sample rate. The 7 KB OTP program memory holds calibration coefficients and linearization tables for thermocouples, RTDs, and bridge pressure sensors. The 192-byte RAM buffers 8 samples per ADC channel before triggering a USART transfer, and the 33 I/O lines drive 7-segment displays, button keypads, and indicator LEDs. The 2.5-6.0 V wide supply range allows direct interface to 3.3 V sensors and 5 V actuators on a single PCB, eliminating level-shifters.
Được đề xuất
White Goods Control Boards
The PIC16LC65AT-04I/PT fits white-goods control boards (washing machines, dishwashers, ovens) because its -40C to +85C industrial temperature range survives appliance thermal stress, and its 33 I/O lines drive buttons, LED indicators, triac-controlled heating elements, and buzzer alarms. The three PWMP channels control motor speed for the drum or pump, while the 8-bit ADC reads thermistor inputs at 100 kS/s. The 7 KB OTP program holds appliance firmware with calibration data, and the 192-byte RAM supports small state-machine buffer. The 2.5-6.0 V supply runs directly from rectified mains, eliminating extra LDO stages.
Được đề xuất
Low-Power Instrumentation
The PIC16LC65AT-04I/PT fits battery-powered low-power instrumentation because its PIC16CXX core operates at 1 MHz instruction rate from 2.5-6.0 V, consuming under 2 mA active and 1 microamp in Sleep mode. The 7 KB OTP stores calibration routines and measurement cycles, and the 33 I/O lines drive LCD segments and power-management FETs. The 192-byte RAM holds measurement buffers between Sleep cycles, while the Watchdog Timer and Brown-out Reset provide robust recovery from brown-out events. This part enables battery lifetimes of 5+ years in remote data loggers, handheld instruments, and portable meters.
Được đề xuất
Human-Machine Interface (HMI) Controllers
The PIC16LC65AT-04I/PT fits HMI controllers because its 33 I/O lines scan up to 4x8 matrix keypads and drive multiplexed 7-segment or 14-segment LED displays. The three timer/counters handle display multiplexing, debounce, and backlight PWMP dimming without CPU intervention, freeing the 4 MHz core for application logic. The USART interface streams HMI events to a host PLC, and the 7 KB OTP holds menu structures, font tables, and communication stacks. The 8-bit ADC reads potentiometer inputs for analog adjustments. The 44-TQFP package mounts on compact HMI PCBs with industry-standard footprint.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC65AT-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 | PIC16LC65B-04I/PT | PIC16LC65A-04I/PQ | PIC16LC64AT-04I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP - same | 44-MQFP - same pinout | 44-TQFP - same |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 3.5 KB OTP (-50%) |
| RAM Size | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| Max Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| ADC Resolution | 8-bit (5 channels) | 8-bit (10-bit option) | 8-bit (5 channels) | 8-bit (5 channels) |
| Number of I/O Pins | 33 | 33 | 33 | 33 |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Lowest-cost OTP option with full 7 KB program memory and 192-byte RAM (vsPIC16LC64AT-04I/PT)
- Drop-in compatibility with PIC16F914-I/PT (flash upgrade) (vsPIC16F914-I/PT)
- Wide 2.5-6.0 V supply range compared to standard PIC16CXX 4.0 V minimum (vsPIC16C65A-04/PT)
Ghi chú thiết kế
The PIC16LC65AT-04I/PT requires a stable VDD supply between 2.5 V and 6.0 V with at least 100 mV peak-to-peak ripple tolerance. Place a 0.1 microfarad ceramic decoupling capacitor as close as possible to the VDD pin, plus a 10 microfarad electrolytic capacitor on the analog supply (AVDD). Brown-out Reset is internally set; do not disable it as the Watchdog Timer may not recover from a noisy VDD event.
Route the oscillator circuit (crystal plus 22 pF load capacitors) within 5 mm of the OSC1/OSC2 pins. Keep high-current traces (motor drivers, relay coils) at least 5 mm away from the oscillator loop to prevent EMI injection. The 44-TQFP package has a center thermal pad; tie it to VSS for mechanical stability and improved thermal dissipation.
The ICSP pins RB6 (PGC) and RB7 (PGD) double as general-purpose I/O. If they are configured as outputs by firmware, in-circuit programming is impossible. Reserve these pins as inputs, or accept that production programming requires sockets. The MCLR pin must be pulled high via a 10 kohm resistor; do not leave it floating as the device will randomly reset.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; for automotive applications, use PIC16F variants with automotive-grade qualification.