PIC16LC62B-04I/ML - 4MHz 8-bit CMOS MCU, 3.5KB OTP | Microchip
N.º da peça: PIC16LC62B-04I/ML ✗ Fim de vidaPIC16LC62B-04I/ML Visão geral
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals on a single die; the PIC16 family uses a Harvard RISC architecture with a 14-bit instruction word, where "OTP" (One-Time-Programmable) memory can be written exactly once and is therefore suited to production-volume, low-cost embedded control. Microcontrollers sit at the bottom of the embedded-compute hierarchy above discrete logic but below microprocessors, and they are part of the broader semiconductor / power-management ecosystem that supplies every modern electronic product.
Key features include 22 digital I/O lines, an external oscillator interface, a programmable Watchdog Timer (WDT), Power-on Reset (POR), Brown-out Reset (BOR), and a 10-bit (approximately) analog comparator peripheral. The 4 MHz instruction-cycle throughput delivers approximately 1 MIPS performance, sufficient for slow-loop control tasks such as keyboard scanning, sensor reading, and simple state machines. The wide 2.5 V–5.5 V supply range lets the device run directly from a 3.3 V LDO or a 4-series-cell battery stack.
The PIC16LC62B uses a 14-bit-wide OTP program-memory array (2048 instruction words), a 128-byte general-purpose RAM, and an 8-level hardware stack for subroutines, with peripheral features including a capture/compare/PWM (CCP) module, a USART, and an 8-bit Timer2 counter. The Harvard bus architecture separates instruction and data paths, allowing most instructions to execute in a single 250 ns instruction cycle at 4 MHz. The CMOS process yields very low power consumption, with typical sleep current in the low microampere range, making the device practical for battery-powered and energy-budgeted designs.
Typical applications include low-end consumer-electronic remote controls, white-goods user interfaces (washing-machine front panels, microwave ovens), battery chargers, sensor-conditioning front-ends, and industrial control modules. The wide industrial temperature grade and small surface-mount footprint make the part attractive where size, cost, and reliability matter more than raw CPU throughput.
When designing with this part, ensure that the ICSP (In-Circuit Serial Programming) pins (RB6/RB7) are not heavily loaded by external circuitry during programming, and place a 100 nF decoupling capacitor as close as possible to the VDD/VSS pins. This page synthesizes distributor pricing, drop-in replacement candidates, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para PIC16LC62B-04I/ML — 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 PIC16LC62B-04I/ML (mesmo formato e footprint) — diferindo em Maximum Clock Frequency, Operating Temperature Range, Oscillator Type, Package, Peripherals.
PIC16F628-04I/ML
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
PIC16F88-I/ML
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →PIC16F630-I/ML
✅ Drop-In ⚠️ Especificações não verificadasConsulte o preço
Ver ficha técnica →PIC16LC62B-04I/ML Classificações máximas e características elétricas
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes x 8 |
| CPU Core | PIC16 (8-bit RISC, Harvard, 14-bit instruction word) |
| Frequência máxima de clock | 4 MHz |
| Instruction Throughput | 4 MIPS (1 MIPS at 4 MHz) |
| Number of I/O | 22 |
| Encapsulamento / Caixa | 28-VQFN (Quad Flat No-lead) |
| Oscillator Type | External |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Faixa de temperatura de operação | -40 C to +85 C (Industrial grade) |
| Peripherals | WDT, POR, BOR, CCP, USART, Timer2 (per Microchip datasheet) |
| Tipo de montagem | Surface Mount |
| Packaging | Tube (per distributor listing) |
Configuração de pinos do PIC16LC62B-04I/ML
| Pino 1 | VSS — Ground reference |
| Pino 2 | OSC1/CLKIN — External oscillator input or crystal pin 1 |
| Pino 3 | OSC2/CLKOUT — External oscillator output or crystal pin 2 |
| Pino 4 | RA0/AN0 — PORTA bit 0 / analog input |
| Pino 5 | RA1/AN1 — PORTA bit 1 / analog input |
| Pino 6 | RA2/AN2 — PORTA bit 2 / analog input |
| Pino 7 | RA3/AN3 — PORTA bit 3 / analog input |
| Pino 8 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pino 9 | RA5/MCLR/VPP — PORTA bit 5 / Master Clear / ICSP programming voltage |
| Pino 10 | VSS — Ground reference (second VSS pin) |
| Pino 11 | RB0/INT — PORTB bit 0 / external interrupt |
| Pino 12 | RB1 — PORTB bit 1 |
| Pino 13 | RB2 — PORTB bit 2 |
| Pino 14 | RB3 — PORTB bit 3 |
| Pino 15 | RB4 — PORTB bit 4 |
| Pino 16 | RB5 — PORTB bit 5 |
| Pino 17 | RB6/ICSPCLK — PORTB bit 6 / ICSP clock (programming) |
| Pino 18 | RB7/ICSPDAT — PORTB bit 7 / ICSP data (programming) |
| Pino 19 | VSS — Ground reference (third VSS pin) |
| Pino 20 | VDD — Positive supply |
| Pino 21 | RC0 — PORTC bit 0 |
| Pino 22 | RC1 — PORTC bit 1 |
| Pino 23 | RC2 — PORTC bit 2 |
| Pino 24 | RC3 — PORTC bit 3 |
| Pino 25 | RC4 — PORTC bit 4 |
| Pino 26 | RC5 — PORTC bit 5 |
| Pino 27 | RC6/TX/CK — PORTC bit 6 / USART transmit or clock |
| Pino 28 | RC7/RX/DT — PORTC bit 7 / USART receive or data |
Aplicações típicas
PIC16LC62B-04I/ML é adequado para 6 aplicaçãos: Consumer Remote Controls, White-Goods User Interfaces (Washing Machines, Microwave Ovens), Low-Cost Battery Chargers, Sensor Front-End Modules, Smart-Home / IoT Edge Nodes, Industrial Control Modules.
Consumer Remote Controls
The PIC16LC62B-04I/ML is well-suited to consumer IR/RF remote controls: its 22 I/O drive key-scan matrices and LED indicators without external logic; the 4 MIPS performance easily handles protocol-decoding tasks such as NEC, Philips RC5, or Sony SIRC; OTP memory keeps the unit cost below USD 1 in volume while the 2.5-5.5 V range accepts both 3 V coin cells and 3.3 V regulator rails.
Recomendado
White-Goods User Interfaces (Washing Machines, Microwave Ovens)
Home-appliance front panels need a low-cost MCU that drives 7-segment displays, keypads, and buzzer feedback. The PIC16LC62B-04I/ML's 22 I/O, hardware timer, and programmable WDT fit a typical washing-machine UI, while the industrial -40C to +85C grade covers under-cabinet thermal exposure. OTP guarantees one-time BOM lock-in for warranty purposes.
Recomendado
Low-Cost Battery Chargers
The LC prefix identifies a low-Vdd silicon process that draws very little quiescent current, perfect for NiMH / Li-ion 1- to 4-cell chargers driven directly from a wall adapter or USB. The PIC16LC62B-04I/ML's analog comparators close the voltage-regulate or CC-CV charge loops, while 22 I/O drive LED status indicators and a character-LCD segment stack.
Recomendado
Sensor Front-End Modules
Industrial sensor hubs that broadcast simple state changes over UART or PWM benefit from the PIC16LC62B-04I/ML's USART, 8-bit Timer2 counter, and capture/compare/PWM (CCP) module. The 28-QFN footprint integrates cleanly into M12 sensor heads, and the industrial -40C to +85C rating supports outdoor deployments under sun loading or refrigeration.
Recomendado
Smart-Home / IoT Edge Nodes
Mains-cycle sync, triac drive, and appliance status reporting are well-served by 8-bit PIC16 parts running the LC62B silicon. The PIC16LC62B-04I/ML's CMOS sleep current keeps idle nodes under 1 uA, the 22 I/O drive triac opto-couplers and zero-cross inputs simultaneously, and the OTP pricing model protects IP once firmware is finalized for consumer product launches.
Recomendado
Industrial Control Modules
Programmable logic controllers, motor-driver sub-modules, and HVAC damper actuators use 8-bit PICs as co-processors to manage local I/O. The PIC16LC62B-04I/ML is favored here for its industrial temperature range, ample I/O for limit-switch, encoder, and LED indication, and the CCP module for generating PWM outputs to motor driver inputs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16LC62B-04I/ML — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16LC62B-04I/SO | PIC16LC62B-04I/SP | PIC16LC62BT-04I/SS | PIC16F628-04I/ML |
|---|---|---|---|---|---|
| Package | 28-VQFN (ML) | 28-SOIC | 28-PDIP | 28-SSOP | 28-VQFN - drop-in QFN |
| Brand | Microchip Technology | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) | Microchip Technology (same) |
| Memory Type | OTP (3.5KB) | OTP (3.5KB) | OTP (3.5KB) | FLASH (reprogrammable) | FLASH (reprogrammable) |
| Program Memory Size | 3.5 KB (2K x 14) | 3.5 KB | 3.5 KB | 3.5 KB | 4 KB |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz (F-version also supports 20 MHz) | 20 MHz |
| RAM Size | 128 bytes | 128 bytes | 224 bytes | 368 bytes | |
| Number of I/O | 22 | 22 | 22 | 16 (different pinout) | 22 |
| Supply Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V (wider) | 2.0 V to 5.5 V (wider) | |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | |
| Lifecycle Status | NRND (Not Recommended for New Designs) | NRND | Active | Active |
Principais diferenciais
- Low-voltage silicon (2.5 V - 5.5 V) vs older PIC16 LC5x family's 3.0 V (vs PIC16LC54A-04/SO)
- 22 I/O on 28-pin QFN vs 12 I/O on the 18-pin PIC16LC54 (vs PIC16LC54A-04/P)
- Modern flash replacement available in same QFN footprint (vs PIC16F628-04I/ML (NOT pin-compatible - different pinout 18-pin))
Notas de projeto
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair (pins 19/20 are co-located on 28-QFN). For noisy analog applications, add a 10 uF bulk capacitor near the IC and consider a ferrite bead on the supply rail. Brown-out Reset (BOR) is enabled by default in configuration bits - leave it on for safety-critical applications or disable it when low-voltage operation below 2.5 V is required.
The 28-QFN exposed thermal pad MUST be soldered to a copper ground pour for mechanical reliability and thermal dissipation. Use an array of thermal vias connecting the pad to multiple ground planes - each via should be plated shut on top to prevent solder wicking. Keep traces under the IC clean (no signal traces under the package) and avoid cutting the ground plane directly under the QFN for thermal symmetry.
Pins RB6 and RB7 (ICSPCLK/ICSPDAT) are shared with the in-circuit serial programming interface. During programming, these lines must not be heavily loaded by external circuitry - if your design uses them as outputs to drive relays or LEDs, isolate them with jumpers, series resistors, or buffers. Pins RA4 (open-drain) and RA5 (MCLR) require special attention: RA4 needs a pull-up if used as output, and RA5/MCLR must have its pull-up resistor (typically 10 kohm) sized for the wiring capacitance to keep rise/fall times within spec.
For high-EMI environments, surround the external crystal (or resonator) with a guard ring tied to ground, and keep the OSC2 trace short and shielded by the ground ring. When using the internal RC oscillator, leave the OSC pins as NC (no connect) and route the RA6/RA7 pins as standard I/O - the configuration bits select the oscillator source.
OTP program memory is written via the ICSP interface once at production; ensure ICSP connector placement allows easy access without removing the MCU from the board. Configure the POR/BOR/WDT bits in the configuration word before code lock bits are programmed - the configuration word can NOT be read back once the code protection is enabled, which complicates field debugging.
Informações de conformidade
RoHS compliant per Microchip product page; not AEC-Q100 qualified (industrial grade only); lead-free (Pb-free) per Microchip manufacturing practice; halogen-free status unknown from verified data; conflict-minerals compliant per Microchip supplier reporting.
