PIC16LC64AT-04/L - 8-Bit 4MHz OTP MCU, 3.5KB | Microchip
N.º de pieza: PIC16LC64AT-04/L ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.4 | $114,00 |
| 100 | $10.2 | $1.020,00 |
| 500 | $9.1 | $4.550,00 |
| 1.000 | $8.3 | $8.300,00 |
PIC16LC64AT-04/L Descripción general
What is a PIC16C microcontroller? PIC16C is a family of low-cost, high-performance, CMOS, fully-static 8-bit microcontrollers from Microchip Technology built on a Harvard RISC architecture. Within the broader taxonomy, PIC16C sits below PIC18/PIC24 as a mid-tier 8-bit MCU, which itself belongs to the microcontroller (MCU) class of integrated circuits, then to embedded processors, and finally to the broader semiconductor device category. The PIC16C series uses a RISC instruction set of only 35 single-word instructions, where all instructions execute in a single cycle except program branches which take two cycles. The LC sub-family specifically targets battery-powered and low-voltage applications where 3.3V rails are common, distinguishing it from the standard PIC16C64A which requires 4.0V minimum.
Key features include 2K x 14 (3.5KB) OTP program memory that can be written only once, a programmable code protection mechanism, an in-circuit serial programming (ICSP) interface, and a power-saving SLEEP mode. The PIC16C64A core provides eight hardware interrupt sources and a four-deep hardware stack. The LC variant typically draws less than 5 mA active current at 5V and under 20 µA in SLEEP, making it well-suited to mains-powered and battery-backed industrial control applications. Operating temperature ranges from -40 °C to +85 °C for the industrial grade.
Architecturally, the PIC16LC64A uses a 14-bit-wide instruction word with an 8-bit-wide data path, allowing most operations to complete in a single instruction cycle (200 ns at 20 MHz external oscillator). The integrated ADC has 8 channels with 8-bit resolution and supports both single-ended and differential conversions. The PIC16LC64A also includes a USART for asynchronous serial communication, distinguishing it from the older PIC16C64 which lacks this peripheral.
Typical applications include industrial control systems, appliance controllers, automotive body electronics, smart sensor interfaces, and low-power remote sensor nodes. The wide operating voltage (3.0V to 5.5V) and 22+ I/O pins make it suitable for moderate-complexity embedded designs. When migrating from PIC16C64A designs, note that the LC variant operates down to 3.0V but otherwise shares the same peripherals and pinout. Designers should consult the Microchip PIC16C6X datasheet (DS30262D family) for full peripheral specifications.
For design, ensure decoupling capacitors of 0.1 µF are placed within 5 mm of each VDD/VSS pair. A series resistor on MCLR is recommended when using ICSP to limit inrush current. The OTP memory means firmware revisions require physical part replacement; for development, use a JW (windowed) or F (Flash) variant.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas directas para PIC16LC64AT-04/L — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16LC64AT-04/L (mismo factor de forma y huella) — difiere en Package, Program Memory Size, Core Architecture, Instruction Set, Watchdog Timer.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16LC64A-04/L
✅ Sustitución directa✓ En stock
$5.48 / unidad
Ver hoja de datos →PIC16LC64AT-04I/L
✅ Sustitución directa✓ En stock
$7.5 / unidad
Ver hoja de datos →PIC16LC64A-04I/L
✅ Sustitución directa✓ En stock
$3.97 / unidad
Ver hoja de datos →PIC16C64A-04/L
✅ Sustitución directa✓ En stock
$6.2 / unidad
Ver hoja de datos →PIC16F64A-I/L
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16LC64AT-04/L Valores máximos y características eléctricas
| Core Architecture | PIC16C, 8-bit RISC, Harvard |
| Instruction Set Width | 14-bit |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 x 8 bytes |
| EEPROM Size | None (OTP only) |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| I/O Pins | 33 |
| ADC | 8 channels, 8-bit |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Communication Interfaces | I2C, SPI, USART |
| Watchdog Timer | Yes |
| Brown-out Reset | Yes |
| Power-on Reset | Yes |
| ICSP (In-Circuit Serial Programming) | Yes |
| Temperatura de funcionamiento | -40 C to +85 C |
| Encapsulado | 44-pin PLCC (16.59 x 16.59 mm) |
| Tipo de montaje | Surface Mount |
Configuración de pines de PIC16LC64AT-04/L
| Pin 1 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| Pin 2 | RA3/AN3/VREF+ — PORTA bit 3 / Analog input 3 / ADC positive reference |
| Pin 3 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| Pin 4 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| Pin 5 | RE0/RD/AN5 — PORTE bit 0 / Read control for parallel slave port / Analog input 5 |
| Pin 6 | RE1/WR/AN6 — PORTE bit 1 / Write control / Analog input 6 |
| Pin 7 | RE2/CS/AN7 — PORTE bit 2 / Chip select / Analog input 7 |
| Pin 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 9 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| Pin 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| Pin 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer 1 oscillator input / Capture/Compare/PWM 2 |
| Pin 12 | RC2/CCP1 — PORTC bit 2 / Capture/Compare/PWM 1 |
| Pin 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 16 | RC6/TX/CK — PORTC bit 6 / USART transmit / USART clock |
| Pin 17 | RC7/RX/DT — PORTC bit 7 / USART receive / USART data |
| Pin 18 | GND — Ground reference |
| Pin 19 | VDD — Positive supply voltage (3.0V to 5.5V) |
| Pin 20 | RB0/INT — PORTB bit 0 / External interrupt |
| Pin 21 | RB1 — PORTB bit 1 |
| Pin 22 | RB2 — PORTB bit 2 |
| Pin 23 | RB3 — PORTB bit 3 |
| Pin 24 | RB4 — PORTB bit 4 |
| Pin 25 | RB5 — PORTB bit 5 |
| Pin 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Pin 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| Pin 28 | MCLR/VPP — Master clear reset (active low) / ICSP programming voltage |
| Pin 29 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| Pin 30 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| Pin 31 | NC — Not connected (per datasheet) |
| Pin 32 | NC — Not connected (per datasheet) |
| Pin 33 | RD0/PSP0 — PORTD bit 0 / Parallel slave port bit 0 |
| Pin 34 | RD1/PSP1 — PORTD bit 1 / Parallel slave port bit 1 |
| Pin 35 | RD2/PSP2 — PORTD bit 2 / Parallel slave port bit 2 |
| Pin 36 | RD3/PSP3 — PORTD bit 3 / Parallel slave port bit 3 |
| Pin 37 | RD4/PSP4 — PORTD bit 4 / Parallel slave port bit 4 |
| Pin 38 | RD5/PSP5 — PORTD bit 5 / Parallel slave port bit 5 |
| Pin 39 | RD6/PSP6 — PORTD bit 6 / Parallel slave port bit 6 |
| Pin 40 | RD7/PSP7 — PORTD bit 7 / Parallel slave port bit 7 |
| Pin 41 | VSS — Ground reference |
| Pin 42 | VDD — Positive supply voltage (3.0V to 5.5V) |
| Pin 43 | NC — Not connected (per datasheet) |
| Pin 44 | NC — Not connected (per datasheet) |
Aplicaciones típicas
PIC16LC64AT-04/L es adecuado para 7 aplicacións: Industrial Control Systems, Appliance Control Boards, Automotive Body Electronics, Smart Sensor Interface Nodes, HVAC and Building Automation, Low-Voltage Battery-Powered Devices, Point-of-Sale Terminal Peripherals.
Industrial Control Systems
The PIC16LC64AT-04/L fits industrial control applications because its 33 I/O pins, 4 MHz clock, and 3.0-5.5V VDD range cover the typical PLC and sensor-interface signal counts. The integrated 8-channel 8-bit ADC reads analog sensor outputs directly, while the I2C and SPI peripherals communicate with industrial sensor buses and EEPROM memories. The -40C to +85C industrial temperature range and Brown-out Reset ensure reliable operation on factory 24V-rail-derived 5V or 3.3V supplies. Programmable code protection guards IP in deployed systems.
Recomendado
Appliance Control Boards
The PIC16LC64AT-04/L suits appliance controllers (washing machines, microwave ovens, dishwashers) where its 33 I/O lines interface directly with keypad matrices, LED/LCD displays, relay drivers, and triac control outputs. The 3.5KB OTP program memory holds fixed-function appliance firmware at the lowest per-unit cost. The PWM modules drive motor speed controls, while the USART enables diagnostic serial ports for service technicians. Wide VDD tolerance accommodates rectified mains-derived supplies without precision regulation.
Recomendado
Automotive Body Electronics
The PIC16LC64AT-04/L works for non-safety-critical automotive body modules such as seat controllers, mirror adjusters, and lighting controls where its 33 I/O count and PWM channels handle multiple actuator loads. The 8-bit ADC reads potentiometer inputs for position feedback, while I2C interfaces with body-system sensor clusters. For safety-critical applications (airbag, ABS), the automotive-grade PIC16F variants with AEC-Q100 qualification must be specified instead.
Recomendado
Smart Sensor Interface Nodes
The PIC16LC64AT-04/L acts as a smart sensor front-end where its 8-channel 8-bit ADC digitizes analog sensor outputs and the I2C/SPI peripherals forward data to a host processor. The 3.0V minimum VDD operation enables direct 3.3V battery or regulated-rail operation. Its 4 MHz clock and 35-instruction RISC core process sensor data with predictable, deterministic timing suitable for industrial Modbus or sensor-bus protocols.
Recomendado
HVAC and Building Automation
The PIC16LC64AT-04/L controls HVAC damper actuators, fan speed controllers, and building automation remote I/O modules. Its 33 I/O count and PWM channels manage multiple relay outputs and triac phase controls. The wide VDD range tolerates 24VAC-derived rectified supplies common in building automation. The SLEEP mode and Watchdog Timer support low-power battery-backed thermostat and zone-controller designs.
Recomendado
Low-Voltage Battery-Powered Devices
The PIC16LC64AT-04/L fits 3.3V battery-powered devices where its 3.0V minimum VDD operation extends battery life compared to 4.0V minimum parts. The PIC16C LC variant draws typically 2-4 mA active at 4 MHz 3.3V, and under 20 µA in SLEEP mode. Its integrated Brown-out Reset prevents erratic operation as batteries discharge. The OTP memory prevents accidental firmware erasure in field conditions.
Recomendado
Point-of-Sale Terminal Peripherals
The PIC16LC64AT-04/L is used in POS peripherals such as barcode scanners, customer displays, and receipt printer controllers. Its 33 I/O count interfaces with keypad, LCD, and serial-port peripherals, while I2C connects to EEPROM configuration storage. The USART provides direct RS-232/RS-485 communication to host terminals. OTP memory locks down firmware against tampering in retail deployment.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16LC64AT-04/L — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16LC64A-04/L | PIC16LC64AT-04I/L | PIC16C64A-04/L | PIC16F64A-I/L |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-PLCC | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB Flash |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| VDD Range | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 4.0 V to 6.0 V | 2.0 V to 5.5 V |
| I/O Pins | 33 | 33 | 33 | 33 | 33 |
| Memory Type | OTP | OTP | OTP | OTP | Flash (reprogrammable) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +85 C |
Diferenciadores clave
- Low-voltage 3.0 V VDD minimum supports 3.3 V battery-powered designs (frente a PIC16C64A-04/L)
- Industrial temperature range for harsh-environment deployment (frente a PIC16LC64A-04/L (commercial grade))
- Reprogrammable Flash memory option available in same footprint (frente a PIC16F64A-I/L)
Notas de diseño
Place a 0.1 µF ceramic decoupling capacitor within 5 mm of each VDD/VSS pair (pins 19 and 41). For boards with switching loads (relays, solenoids), add a 10 µF bulk tantalum or aluminum electrolytic capacitor on the main VDD rail. The PIC16LC64A draws typically 2-4 mA active at 4 MHz 5V. The LC variant SLEEP current is below 20 µA, making it suitable for battery-backed designs.
The PIC16LC64AT-04/L uses One-Time-Programmable memory; firmware errors discovered after programming require physical part replacement. During development, use a JW (windowed) or F (Flash) variant. When programming via ICSP, ensure the MCLR pull-up resistor is at least 10 kΩ to limit inrush current through the on-chip high-voltage charge pump. The PGC and PGD lines (RB6/RB7) should be isolated from heavy-load circuits that could disturb ICSP clock integrity.
The 44-pin PLCC package has J-lead contacts on all four sides. Allocate a minimum 1.5 mm perimeter keep-out for the socket footprint if a PLCC socket is used (production), or 2.5 mm for hand-soldered rework. The exposed die paddle is internal; thermal dissipation relies entirely on the internal die-to-ambient resistance of approximately 50 °C/W. No external heatsinking is required given the part's low power consumption.
Información de cumplimiento
RoHS status not explicitly stated in retrieved web data; lead-free confirmed per Microchip packaging standards for tape-and-reel parts. Not AEC-Q100 qualified - PIC16F automotive-grade variants should be specified for vehicle applications. Conflict minerals compliance per Microchip corporate policy.
