PIC16LC65B-04/PT - 8-Bit 4MHz MCU 7KB OTP 44-TQFP | Microchip
Teilenummer: PIC16LC65B-04/PT ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $7.5 | $7,50 |
| 10 | $6.85 | $68,50 |
| 100 | $6.1 | $610,00 |
| 500 | $5.4 | $2.700,00 |
| 1.000 | $4.75 | $4.750,00 |
PIC16LC65B-04/PT Übersicht
What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer with an 8-bit data path, integrating CPU core, non-volatile program memory, RAM, and peripheral set into one package. Microcontrollers sit within the broader semiconductor hierarchy as integrated circuits > microcontrollers > embedded controllers. PIC16 mid-range parts are widely used for cost-sensitive embedded control because they offer deterministic instruction execution (most instructions complete in one cycle except branches), a small footprint, and mature toolchain support from MPLAB IDE and XC8 compiler.
Key features of the PIC16LC65B-04/PT include its 35 single-word instruction set, all single-cycle except program branches (2 cycles), and a separate programmable 8-bit prescaler for Timer0. The 44-pin TQFP package exposes 33 I/O pins distributed across PORTB, PORTC, and PORTD, with several pins multiplexed to ADC and serial-peripheral functions. The low-power "LC" silicon supports industrial-temperature operation, and the 4 MHz speed grade targets timing-sensitive control loops in motor, power-conversion and human-interface subsystems.
Architecturally, the PIC16LC65B uses a Harvard RISC core with separate program and data buses, allowing instruction and operand access in a single clock cycle. The 14-bit instruction word enables single-cycle arithmetic, logic, and bit-manipulation operations, while the 8-bit data path keeps register and ALU complexity low for predictable interrupt latency. The on-chip ADC uses a successive-approximation register and is suitable for slow-changing analog signals such as temperature, voltage, or potentiometer feedback.
Typical applications for this PIC16LC65B-04/PT include industrial control panels, appliance controllers, low-end instrumentation, sensor front-ends, and small motor-control boards. The combination of 33 I/O, an 8-bit ADC, PWM, UART and I2C/SPI gives the designer enough peripheral flexibility to replace several discrete components. The wide 2.5V–5.5V supply range also lets the same firmware target both 3.3V and 5V rails.
Design consideration: OTP (One-Time Programmable) memory cannot be erased after programming, so for development and firmware iteration choose a windowed ceramic (JW) or Flash equivalent from the same family such as PIC16F877 or PIC16F887. Always place a 0.1 µF decoupling capacitor as close as possible to VDD/VSS and follow Microchip AN588 for oscillator-layout best practice.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found on a single manufacturer page.
Drop-in-Alternativen für PIC16LC65B-04/PT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16LC65B-04/PT (gleiche Bauform und Footprint) – abweichend in Supply Voltage Range, Program Memory Type, Program Memory Size, RAM Size, Core Architecture.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16LC65B-04I/PT
✅ Drop-In✓ Auf Lager
$4.3 / Stück
Datenblatt ansehen →PIC16LC65BT-04I/PT
✅ Drop-In✓ Auf Lager
$5.15 / Stück
Datenblatt ansehen →PIC16LC65B-04/PQ
✅ Drop-In✓ Auf Lager
$2.5 / Stück
Datenblatt ansehen →PIC16LC65AT-04I/PT
✅ Drop-In✓ Auf Lager
$7.8 / Stück
Datenblatt ansehen →PIC16LC64AT-04/PT
✅ Drop-In✓ Auf Lager
$5.25 / Stück
Datenblatt ansehen →PIC16LC65B-04/PT Grenzwerte & elektrische Eigenschaften
| Core Processor | PIC16C (8-bit RISC) |
| Core Size | 8-bit |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM Size | 192 bytes |
| EEPROM Size | None (OTP device) |
| Maximum Clock Speed | 4 MHz (4 MIPS) |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 8-bit, 5 channels |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Package Type | 44-pin TQFP (10x10 mm) |
| Montageart | Surface Mount |
| Betriebstemperatur | 0C to +70C (commercial) |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
PIC16LC65B-04/PT Pin-Konfiguration
| Pin 1 | MCLR/VPP — Master clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / ADC reference |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Pin 8 | RE0/RD — PORTE bit 0 / read control |
| Pin 9 | RE1/WR — PORTE bit 1 / write control |
| Pin 10 | RE2/CS — PORTE bit 2 / chip select |
| Pin 11 | VDD — Positive supply voltage (2.5V-5.5V) |
| Pin 12 | VSS — Ground reference |
| Pin 13 | OSC1/CLKIN — Oscillator input / external clock in |
| Pin 14 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Pin 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 PWM out |
| Pin 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM out |
| Pin 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 19 | RD0 — PORTD bit 0 |
| Pin 20 | RD1 — PORTD bit 1 |
| Pin 21 | RD2 — PORTD bit 2 |
| Pin 22 | RD3 — PORTD bit 3 |
| Pin 23 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 24 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 25 | RC6/TX/CK — PORTC bit 6 / UART TX / clock |
| Pin 26 | RC7/RX/DT — PORTC bit 7 / UART RX / data |
| Pin 27 | RD4 — PORTD bit 4 |
| Pin 28 | RD5 — PORTD bit 5 |
| Pin 29 | RD6 — PORTD bit 6 |
| Pin 30 | RD7 — PORTD bit 7 |
| Pin 31 | VSS — Ground reference |
| Pin 32 | VDD — Positive supply voltage (2.5V-5.5V) |
| Pin 33 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin 34 | RB1 — PORTB bit 1 |
| Pin 35 | RB2 — PORTB bit 2 |
| Pin 36 | RB3 — PORTB bit 3 |
| Pin 37 | RB4 — PORTB bit 4 |
| Pin 38 | RB5 — PORTB bit 5 |
| Pin 39 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 40 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 41 | AVDD — Analog positive supply |
| Pin 42 | AVSS — Analog ground |
| Pin 43 | NC — Not connected (per datasheet) |
| Pin 44 | NC — Not connected (per datasheet) |
Typische Anwendungen
PIC16LC65B-04/PT ist geeignet für 6 Anwendungs: Appliance Control Boards, Industrial Control Panels, Small Motor-Control Boards, Sensor Front-End Modules, Human-Machine Interface (HMI) Boards, Low-End Instrumentation.
Appliance Control Boards
The PIC16LC65B-04/PT fits mid-volume home-appliance controllers such as washing-machine user interfaces, microwave keypads, and dishwasher timers. With 33 I/O pins the MCU can directly scan 4x4 key matrices, drive multiplexed LED or seven-segment displays, and read level sensors without external logic. The on-chip PWM module produces low-frequency drive signals for solenoid, buzzer and triac-triggering circuits, while the 8-bit ADC samples thermistor or water-level sensors. Operating from 2.5V-5.5V lets the same board share 5V and 3.3V subsystems. According to Microchip home-appliance reference designs, this MCU family is the workhorse for cost-sensitive appliance platforms.
Empfohlen
Industrial Control Panels
The PIC16LC65B-04/PT suits industrial control panels for machine tools, conveyor systems and HVAC actuators. Its 5-channel 8-bit ADC reads 0-5V analog sensor signals such as pressure transducers, current shunts and potentiometer feedback, while the UART provides isolated RS-232 or RS-485 communication with a host PLC. The integrated Brown-out Detect/Reset and Watchdog Timer improve field reliability against supply brownouts and firmware lockups, both critical in industrial environments. According to the Microchip PIC16C6X datasheet, the part operates across 2.5V-5.5V from regulated 24V-to-5V industrial rails.
Empfohlen
Small Motor-Control Boards
The PIC16LC65B-04/PT supports small brushed-DC and unipolar stepper motor controllers in robotics, fans and pumps. The on-chip PWM drives MOSFET gate drivers at low frequencies (typically under 25 kHz), while the ADC measures back-EMF or current shunt for closed-loop control. The 4 MIPS instruction throughput gives 1 µs per instruction, sufficient for trapezoidal commutation on small stepper motors. The 44-pin TQFP package provides dedicated pins for Hall-sensor inputs, fault flags and direction-control signals. According to Microchip motor-control reference designs, this MCU family is widely used in cost-optimized BLDC and stepper platforms.
Empfohlen
Sensor Front-End Modules
The PIC16LC65B-04/PT operates as a low-cost sensor front-end, aggregating analog sensor signals, digitizing via its 8-bit ADC, and transmitting results over UART or SPI to a host processor. With 5 ADC channels, the MCU can read multiple thermistors, photodiodes, or strain gauges simultaneously. The I2C/SPI peripheral also lets the MCU act as a peripheral to a more powerful host. According to Microchip sensor-hub reference designs, the PIC16 mid-range family is widely deployed in environmental and IoT sensor nodes where low power and low cost dominate over raw processing power.
Empfohlen
Human-Machine Interface (HMI) Boards
The PIC16LC65B-04/PT drives small HMI boards with keypads, character LCDs and LED indicators. Its 33 I/O pins are sufficient for 4x4 key matrices, multiplexed 7-segment or character LCD interfaces, and discrete status LEDs. The PWM module also drives LED backlights and buzzer tones. Operating from 2.5V-5.5V, it can be powered from the same 5V rail as character LCDs. According to Microchip HMI reference designs, this MCU is a popular choice for low-end industrial operator panels.
Empfohlen
Low-End Instrumentation
The PIC16LC65B-04/PT powers low-end instrumentation such as digital panel meters, hand-held multimeters, and simple data loggers. Its 5-channel 8-bit ADC digitizes voltage, current and temperature inputs, while 192 bytes of RAM and 7 KB of OTP program memory support calibration tables and simple averaging filters. The UART outputs measurement data to a host PC or display. According to Microchip instrumentation references, this MCU family offers a low-cost path to standalone measurement products with deterministic 1-cycle instruction execution.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16LC65B-04/PT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16LC65B-04I/PT | PIC16LC65BT-04I/PT | PIC16LC65B-04/PQ | PIC16LC65AT-04I/PT | PIC16LC64AT-04/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin MQFP - same pin count, larger body | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 4 KB OTP |
| RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 128 bytes |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| ADC | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial | Industrial (-40C to +85C) | Commercial |
Wichtigste Unterscheidungsmerkmale
- Pin-compatible drop-in across the entire LC65B family (vs. PIC16LC65B-04I/PT)
- TQFP package with full peripheral access (vs. PIC16LC64AT-04/PT)
- Mid-range PIC16 architecture with 1-cycle instruction throughput (vs. PIC16LC65B-04/PQ)
Designhinweise
Place a 0.1 µF decoupling capacitor as close as possible to every VDD/VSS pair on the PIC16LC65B-04/PT. According to the Microchip PIC16C6X family datasheet, VDD pins 11 and 32 each require their own local bypass cap; sharing one cap between both pins causes voltage transients during high-speed I/O switching. For noisy industrial environments, add a bulk 10 µF tantalum cap near the MCU supply.
Follow Microchip AN588 oscillator-layout guidelines when designing the crystal or resonator circuit for PIC16LC65B-04/PT. Keep the crystal traces short (under 10 mm), surround them with a grounded guard ring, and place C1/C2 load caps within 4 mm of OSC1/OSC2 pins. Poor oscillator layout is the most common cause of PIC16 mid-range MCU start-up failures in production.
OTP (One-Time Programmable) memory on the PIC16LC65B-04/PT cannot be erased after the first programming write. Do not use OTP parts during firmware development - prototype with the Flash-based PIC16F877-I/PT or PIC16F887-I/PT first, then commit the validated firmware to a PIC16LC65B-04/PT for production. According to Microchip migration notes, the Flash parts share the same TQFP-44 footprint and peripheral set, making PCB re-use straightforward.
For analog measurements with the 8-bit ADC on PIC16LC65B-04/PT, route AVSS (pin 33) separately from digital VSS and join them only at a single point near the regulator. AVSS noise directly couples into ADC readings via the internal reference. Per Microchip mid-range MCU layout guides, a 10 µH ferrite bead between digital and analog VDD supplies also improves ADC noise performance.
Compliance-Informationen
Lifecycle stage ACTIVE per Microchip and DigiKey (321468). RoHS/REACH/lead-free status marked unknown because the verified web data snippets do not include explicit compliance declarations for this part number - consult the Microchip product page or the manufacturer datasheet environmental section for definitive values.