PIC16LC65BT-04I/PT - 8-Bit 4MHz MCU 7KB OTP 44-TQFP | Microchip
N.º da peça: PIC16LC65BT-04I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.85 | $9,85 |
| 10 | $8.92 | $89,20 |
| 100 | $7.45 | $745,00 |
| 500 | $6.2 | $3.100,00 |
| 1.000 | $5.15 | $5.150,00 |
PIC16LC65BT-04I/PT Visão geral
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripherals on one die. The PIC16LC65B sits inside the PIC16 mid-range architecture (8-bit RISC, 14-bit instruction word), which historically positioned it between the baseline PIC10/12/16 families and the PIC18 high-tier 8-bit family. The "LC" suffix designates the low-voltage CMOS process node, enabling operation down to 2.5V - lower than the standard PIC16C parts - which is critical for battery-powered designs where the regulator dropout is a key concern.
Key features include 8-bit Timer0 with 8-bit prescaler, 16-bit Timer1 (increments during Sleep via external crystal/clock), 8-bit Timer2, a 13-bit programmable Watchdog Timer with on-chip RC oscillator for reliable recovery, a 10-bit multi-channel Analog-to-Digital Converter, and parallel slave port. The mid-range core executes most instructions in a single 200 ns instruction cycle (at 20 MHz) or 1 us cycle (at 4 MHz), providing deterministic interrupt latency suitable for closed-loop control.
The device's CMOS fully-static design allows the clock to be stopped and the part to enter Sleep mode with sub-microamp current consumption, making it suitable for energy-harvesting and battery-backed applications. The integrated Brown-out Reset (BOR), Power-on Reset (POR), and Watchdog Timer combine to give industrial-grade reliability for unattended installations.
Typical applications include industrial automation sensors and motor-control front-ends, automotive body electronics (climate, lighting, instrument clusters), consumer appliance control boards, smart metering, and low-cost embedded user interfaces. The wide 2.5V-5.5V supply range also supports direct 3.3V or 5V rail connection without level shifters.
When designing with this MCU, note that the "I" suffix denotes the industrial temperature grade (-40C to +85C) and the "/PT" suffix identifies the TQFP-44 surface-mount package. The OTP memory limits reprogrammability - use the windowed CERDIP variants (suffix /JW) for prototype development and then transition to the OTP /PT or /PQ package for production.
Alternativas drop-in para PIC16LC65BT-04I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16LC65BT-04I/PT (mesmo formato e footprint) — diferindo em Program Memory Type, Supply Voltage Range, ADC, Communication Interfaces, Core Architecture.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16LC65B-04I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.3 / unidade
Ver ficha técnica →PIC16LC65BT-04/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
PIC16LC65AT-04I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$7.8 / unidade
Ver ficha técnica →PIC16LC65BT-04I/PQ
✅ Drop-In✓ Em estoque
$5.45 / unidade
Ver ficha técnica →PIC16LC65B-04/PQ
✅ Drop-In✓ Em estoque
$2.5 / unidade
Ver ficha técnica →PIC16LC65BT-04I/PT Classificações máximas e características elétricas
| Core Architecture | PIC16 mid-range 8-bit RISC |
| Program Memory Size | 7 KB (4K x 14) OTP |
| RAM Size | 192 bytes |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 33 |
| Encapsulamento | TQFP-44 (10x10 mm) |
| Tipo de montagem | Surface Mount |
| Temperatura de operação | -40 C to +85 C (industrial) |
| Communication Interfaces | I2C, SPI, UART/USART |
| Timer Modules | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit), WDT |
| Instruction Cycle | 1 us at 4 MHz (4 oscillator cycles per instruction) |
| ROM Type | OTP (One-Time-Programmable) |
| Program Memory Type | EPROM (erasable on windowed /JW variants) |
Configuração de pinos do PIC16LC65BT-04I/PT
| Pino 1 | OSC1/CLKIN — Oscillator input / external clock input |
| Pino 2 | OSC2/CLKOUT — Oscillator output / clock output |
| Pino 3 | MCLR/VPP — Master clear reset / programming voltage input |
| Pino 4 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pino 5 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pino 6 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pino 7 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / voltage reference |
| Pino 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 9 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Pino 10 | VSS — Ground reference |
| Pino 11 | VDD — Positive supply voltage |
| Pino 12 | RB0/INT — PORTB bit 0 / external interrupt |
| Pino 13 | RB1 — PORTB bit 1 |
| Pino 14 | RB2 — PORTB bit 2 |
| Pino 15 | RB3 — PORTB bit 3 |
| Pino 16 | RB4 — PORTB bit 4 |
| Pino 17 | RB5 — PORTB bit 5 |
| Pino 18 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pino 19 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pino 20 | VSS — Ground reference |
| Pino 21 | VDD — Positive supply voltage |
| Pino 22 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / clock input |
| Pino 23 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Pino 24 | RC2/CCP1 — PORTC bit 2 / CCP1 |
| Pino 25 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pino 26 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pino 27 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pino 28 | RC6/TX/CK — PORTC bit 6 / USART transmit / clock |
| Pino 29 | RC7/RX/DT — PORTC bit 7 / USART receive / data |
| Pino 30 | VSS — Ground reference |
| Pino 31 | VDD — Positive supply voltage |
| Pino 32 | RD0/PSP0 — PORTD bit 0 / parallel slave port bit 0 |
| Pino 33 | RD1/PSP1 — PORTD bit 1 / parallel slave port bit 1 |
| Pino 34 | RD2/PSP2 — PORTD bit 2 / parallel slave port bit 2 |
| Pino 35 | RD3/PSP3 — PORTD bit 3 / parallel slave port bit 3 |
| Pino 36 | RD4/PSP4 — PORTD bit 4 / parallel slave port bit 4 |
| Pino 37 | RD5/PSP5 — PORTD bit 5 / parallel slave port bit 5 |
| Pino 38 | RD6/PSP6 — PORTD bit 6 / parallel slave port bit 6 |
| Pino 39 | RD7/PSP7 — PORTD bit 7 / parallel slave port bit 7 |
| Pino 40 | RE0/RD/AN5 — PORTE bit 0 / read control / analog input 5 |
| Pino 41 | RE1/WR/AN6 — PORTE bit 1 / write control / analog input 6 |
| Pino 42 | RE2/CS/AN7 — PORTE bit 2 / chip select / analog input 7 |
| Pino 43 | VDD — Positive supply voltage |
| Pino 44 | VSS — Ground reference |
Aplicações típicas
PIC16LC65BT-04I/PT é adequado para 6 aplicaçãos: Industrial Sensor and Actuator Control, Automotive Body Electronics, Consumer Appliance Control Boards, Smart Metering and Energy Monitoring, HMI Keypad and Display Controllers, Low-Cost Embedded User Interfaces.
Industrial Sensor and Actuator Control
The PIC16LC65BT-04I/PT's 33 I/O pins, integrated UART/SPI/I2C peripherals, and industrial -40C to +85C temperature range make it well suited for industrial sensor hubs and actuator driver front-ends. The wide 2.5V-5.5V supply tolerance handles 24V-bus-derived rails post-regulation, while the 7KB OTP program memory holds typical sensor-fusion and PID-control firmware. Connect ADC inputs directly to 4-20 mA loop-derived voltages via signal conditioning, and drive relay coils or solid-state switches through the high-current PORTE pins. The integrated Watchdog Timer and Brown-out Reset give unattended-installations reliability, and Sleep mode with sub-microamp current allows battery-backed operation between wireless transmissions.
Recomendado
Automotive Body Electronics
The PIC16LC65BT-04I/PT's robust CMOS design, wide supply tolerance, and 4 MHz operation make it appropriate for automotive body-electronics modules such as climate-control panels, lighting controllers, and instrument-cluster sub-functions. The 33 I/O lines connect to switch matrices, LED drivers, and stepper-motor coils for HVAC vents. The USART peripheral interfaces with body control modules over LIN or K-line protocols, while the SSP block runs SPI to dashboard displays. Note that the /I suffix denotes industrial (not AEC-Q100 automotive) grade - for under-hood or safety-critical applications, Microchip recommends PIC16F-series AEC-Q100 qualified parts.
Recomendado
Consumer Appliance Control Boards
The PIC16LC65BT-04I/PT is commonly deployed in white-goods control boards including washing-machine user interfaces, microwave oven keypads, dishwasher cycle controllers, and refrigerator temperature regulators. The 192-byte RAM supports menu state machines, the 7KB OTP holds appliance-specific firmware, and the 33 I/O pins drive 7-segment displays, keypads, and triac-trigger outputs. The wide voltage range accepts rectified mains-derived rails directly after a simple Zener regulator, reducing BOM cost. Sleep current under 1 uA enables battery-backed clock and timer functions during power-off states.
Recomendado
Smart Metering and Energy Monitoring
The PIC16LC65BT-04I/PT's low-voltage operation down to 2.5V, combined with integrated ADC and serial peripherals, fits electricity, water, and gas meter designs where the MCU samples sensor outputs and reports consumption over UART or wireless links. The OTP memory secures calibration constants and prevents firmware tampering in regulated metering applications. Sleep-mode current under 1 uA extends battery life to 10+ years on lithium-thionyl-chloride cells. The Watchdog Timer resets the MCU on firmware lockup, ensuring billing accuracy over the meter's 20-year service life.
Recomendado
HMI Keypad and Display Controllers
For human-machine interface panels with 4x4 keypads, character LCDs, or LED status indicators, the PIC16LC65BT-04I/PT offers enough I/O and program memory to scan keys, debounce inputs, drive display drivers, and run serial command stacks. The SSP peripheral interfaces with SPI character LCD modules, while the USART connects to host PLCs or HMIs. Industrial temperature rating suits factory-floor equipment. The 4 MHz clock provides adequate scan rates for matrix keypads without generating EMI that could disturb nearby analog signal conditioning.
Recomendado
Low-Cost Embedded User Interfaces
The PIC16LC65BT-04I/PT targets cost-sensitive embedded products where OTP memory suffices because firmware is finalized at production and never needs field updates. Typical uses include thermostat controls, fitness-equipment consoles, point-of-sale terminals, RFID access controllers, and simple IoT edge nodes. The PIC16 mid-range instruction set is well-documented with free MPASM and XC8 toolchains, reducing firmware development cost. Surface-mount TQFP packaging supports automated assembly, and the 33 I/O pins handle LEDs, keypads, and serial communications without external logic.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LC65BT-04I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LC65B-04I/PT | PIC16LC65BT-04/PT | PIC16LC65AT-04I/PT | PIC16LC65BT-04I/PQ | PIC16LC65B-04/PQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same | MQFP-44 (PQ) - different lead frame | MQFP-44 (PQ) - different lead frame |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| Max 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 | 2.5 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) | -40 C to +85 C (industrial) | -40 C to +85 C (industrial) | 0 C to +70 C (commercial) |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Communication | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART | I2C, SPI, UART |
Principais diferenciais
- Low-voltage 2.5V minimum supply (vs PIC16C65B-04I/PT (4.5V minimum))
- 33 I/O pins in mid-range core (vs PIC16F914-I/PT (36 I/O pins but flash memory))
- Industrial -40C to +85C temperature grade (vs PIC16LC65BT-04/PT (commercial 0C to +70C only))
Notas de projeto
The PIC16LC65BT-04I/PT requires a stable VDD rail with adequate decoupling: place a 100 nF ceramic capacitor within 5 mm of each VDD pin (the part has multiple VDD pins on a TQFP-44) and a bulk 10 uF tantalum or aluminum polymer cap at the supply entry. The 2.5V-5.5V range is wide, but for 3.3V-only systems, use an MCP1700 LDO rated 250 mA with 1.6 uA quiescent current to preserve Sleep-mode battery life. The BOR circuit trips when VDD falls below the configured threshold - configure it via the configuration word to match your minimum operating voltage.
OTP memory cannot be reprogrammed: once the part is programmed and code-masked, no firmware updates are possible. For prototype development, use the windowed CERDIP variant (PIC16LC65B-04I/JW) which allows UV erasure. Production units should be the final-tested firmware version. Configure the Watchdog Timer (WDT) via the configuration word to enable or disable it - the WDT has a separate on-chip RC oscillator that runs even in Sleep mode, providing recovery from software lockup.
TQFP-44 packages require careful PCB layout: the 0.8 mm lead pitch demands solder-paste stencils of 0.15 mm thickness with apertures matched to the pad geometry. Place decoupling capacitors on the same layer as the MCU, with vias to internal ground planes within 2 mm of the VSS pins. The OSC1/OSC2 traces should be as short as possible (under 10 mm) and routed away from high-current switching traces to minimize EMI injection into the clock. If using a crystal, place load capacitors within 3 mm of the OSC pins.
Informações de conformidade
Lead-free /Pb-free terminations per Microchip legacy OTP product line. RoHS compliance status not explicitly stated in retrieved data - confirm with Microchip product ordering information. The /I suffix denotes industrial temperature grade but is NOT equivalent to AEC-Q100 automotive qualification - for AEC-Q100 applications, use PIC16F-series parts.