PIC16LC62B-04/SP - 4MHz 8-Bit OTP MCU, 3.5KB | Microchip
MPN: PIC16LC62B-04/SP ✗ Cuối đờiPIC16LC62B-04/SP Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer containing a CPU, program memory (ROM/EPROM/Flash), data memory (RAM), and configurable I/O peripherals on one die. Within the broader hierarchy, the PIC16LC62B belongs to the PIC16C family of RISC microcontrollers, which falls under the 8-bit MCU category, itself a subset of embedded computing and digital ICs. The 8-bit MCU class targets cost-sensitive, low-to-moderate-complexity control tasks such as sensor interfacing, simple user I/O, and timer-driven control loops.
Key features include 35 single-cycle instructions (with only program branches taking two cycles), a 4 MHz external oscillator interface, an internal watchdog timer, and 22 general-purpose I/O pins multiplexed with on-chip peripherals. The Harvard architecture separates program and data buses, allowing instruction fetch and operand read in a single 200 ns cycle. On-chip peripherals include a Timer0 8-bit timer/counter with an 8-bit prescaler, Timer1 16-bit timer/counter, and capture/compare/PWM (CCP) modules.
The PIC16LC62B implements Microchip's enhanced mid-range 14-bit instruction set, providing greater code density than the baseline 12-bit PIC cores while retaining upward compatibility. EPROM (erasable programmable read-only memory) allows windowed-package parts to be erased with UV light for development, while OTP (one-time programmable) versions are intended for production programming where re-programmability is not required.
Typical applications include low-power sensor interface boards, simple appliance control modules, hobby and educational microcontroller projects, replacement of discrete logic in legacy designs, and embedded timing/sequencing circuits. The wide 3.3V/5V supply range enables both battery-powered and mains-powered designs.
When designing with this device, note that the 28-SPDIP through-hole footprint requires through-hole PCB assembly rather than reflow soldering. Programming requires a Microchip device programmer (e.g., PICkit or MPLAB PM3) and the OTP variant can only be programmed once.
This page synthesizes verified distributor inventory data, parametric comparison with same-package Microchip drop-in alternatives, and practical design notes that go beyond the manufacturer's datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC62B-04/SP — 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 PIC16LC62B-04/SP (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Instruction Cycle Time, Operating Temperature Range, Program Memory Type, RoHS Status.
PIC16C62B-04/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC621A-04I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC620A-04/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LC62B-04/SP Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16C (PIC16LC6x series) |
| Core | 8-bit PIC RISC |
| Architecture | Harvard, 14-bit instruction word |
| Tần số xung maksimum | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data Memory (RAM) | 128 bytes (128 x 8) |
| Number of I/O Pins | 22 |
| Supply Voltage Range | 3.3 V / 5 V (low-voltage 'LC' variant) |
| Hộp / Vỏ | 28-SPDIP (Skinny DIP, 0.300 inch / 7.62 mm row spacing) |
| Oscillator Type | External |
| Kiểu lắp đặt | Through-Hole |
| Packaging | Tube |
| Cấp MSL | Not applicable (through-hole package) |
Cấu hình chân PIC16LC62B-04/SP
| Chân 1 | /MCLR — Master Clear (reset) input, active-low |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Chân 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / voltage reference |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKIN — Oscillator input / external clock input |
| Chân 10 | OSC2/CLKOUT — Oscillator output / clock output |
| Chân 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| Chân 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Chân 13 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM/compare/capture |
| Chân 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 17 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Chân 18 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | RD0 — PORTD bit 0 |
| Chân 21 | RD1 — PORTD bit 1 |
| Chân 22 | RD2 — PORTD bit 2 |
| Chân 23 | RD3 — PORTD bit 3 |
| Chân 24 | RD4 — PORTD bit 4 |
| Chân 25 | RD5 — PORTD bit 5 |
| Chân 26 | RD6 — PORTD bit 6 |
| Chân 27 | RD7 — PORTD bit 7 |
| Chân 28 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC16LC62B-04/SP phù hợp cho 6 Áp dụngs: Low-Power Sensor Interface Boards, Simple Appliance Control Modules, Hobby and Educational Microcontroller Projects, Replacement of Discrete Logic in Legacy Designs, Embedded Timing and Sequencing Circuits, Industrial Control Logic Modules.
Low-Power Sensor Interface Boards
The PIC16LC62B-04/SP is well-suited to low-power sensor interface boards because its 3.3V/5V supply range and 4 MHz clock allow low quiescent draw while still meeting 200 ns instruction-cycle timing for periodic sensor sampling. The 22 digital I/O pins connect easily to digital sensors, comparators, and indicator LEDs without external multiplexer logic. Engineers typically route 4-8 I/O lines to sensors and use the CCP module to generate timing pulses for one-wire or PWM-output transducers. Trade-off: the 128-byte RAM limits buffer depth for raw ADC streams, so designers must batch samples or offload via UART.
Được đề xuất
Simple Appliance Control Modules
The PIC16LC62B-04/SP fits simple appliance control modules - washing machine timers, microwave keypads, fan speed controllers - where 22 I/O pins can drive 7-segment displays, keypads, relays, and triac interfaces simultaneously. Its 3.5 KB OTP program memory holds mid-complexity state machines for cycle control and safety interlocks. The 35 single-cycle RISC instructions make cycle-timing loops deterministic, which is critical for appliance safety standards. Designers pair this MCU with opto-isolated triac drivers (e.g., MOC3041) on the AC side and a small EEPROM for user settings.
Được đề xuất
Hobby and Educational Microcontroller Projects
The PIC16LC62B-04/SP is a classic teaching vehicle in university embedded-systems courses because the 28-SPDIP through-hole package fits breadboards and 0.1-inch perfboards without SMD soldering. Students can hand-wire the external oscillator (4 MHz crystal with two 22 pF caps) and program the OTP device with a PICkit 3/4 to learn Harvard architecture fundamentals. Its 35-instruction RISC set is small enough to memorize but rich enough for real I/O, timer, and interrupt exercises. Trade-off: with modern curricula favoring PIC16F or PIC18F parts, this OTP device is best for retro-curriculum or inventory-clearance lab kits.
Được đề xuất
Replacement of Discrete Logic in Legacy Designs
The PIC16LC62B-04/SP is often used as a single-chip replacement for legacy designs built from 74-series TTL/CMOS glue logic, where 22 I/O pins can absorb 10-20 discrete gates, latches, and counter packages. With 3.5 KB OTP and 128-byte RAM it can implement state machines, frequency dividers, debouncers, and timed-sequence controllers in firmware. The 4 MHz clock and 200 ns cycle time are fast enough to emulate 1-2 MHz legacy logic in software. Compared to discrete-logic rebuilds, this part reduces PCB area by 50-70% and BOM count by an order of magnitude.
Được đề xuất
Embedded Timing and Sequencing Circuits
The PIC16LC62B-04/SP suits timing and sequencing circuits that previously used 555 timers, CD4541, or discrete RC networks. Its Timer0 (8-bit with prescaler) and Timer1 (16-bit) modules generate programmable delays from microseconds to minutes, and the CCP module produces PWM or compare-match triggers. The 22 I/O lines drive sequencer step relays, indicator LEDs, and interlock chains for industrial timers. Designers use the watchdog timer for failsafe operation and the power-on reset for deterministic startup in mission-timing modules.
Được đề xuất
Industrial Control Logic Modules
The PIC16LC62B-04/SP fits industrial control-logic modules where deterministic GPIO state machines replace PLC-style ladder logic for low-cost sub-systems. The 3.3V/5V supply and external-oscillator design accommodate noisy factory environments when paired with optocouplers and TVS protection. Its 22 I/O pins handle digital inputs from limit switches and outputs to relay drivers, with the CCP module generating PWM for proportional valves or indicator dimming. Trade-off: for safety-rated industrial systems (SIL/PL), engineers must add external watchdogs and dual-channel I/O; this OTP MCU alone cannot meet functional-safety standards.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC62B-04/SP — 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 | PIC16C62B-04/SP | PIC16LC62B-04/SO | PIC16LC62A-04I/SO | PIC16LC621A-04I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP | 28-SPDIP (same) | 28-SOIC (different) | 28-SOIC (different) | 28-PDIP (same row, wider body) |
| Program Memory | 3.5 KB (2K x 14) OTP EPROM | 3.5 KB OTP | 3.5 KB OTP (same die) | 3.5 KB OTP | 1.75 KB OTP |
| Maximum Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 96 bytes |
| Number of I/O | 22 | 22 | 22 | 22 | 13 |
| Supply Voltage | 3.3V / 5V (LC variant) | 5V only (standard variant) | 3.3V / 5V | 3.3V / 5V | 3.3V / 5V |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM |
Bảo phân biệt quan trọng
- Low-voltage 3.3V/5V dual-supply support (vsPIC16C62B-04/SP)
- 22 programmable I/O pins across three ports (vsPIC16LC621A-04I/P)
- 3.5 KB OTP memory with 35 single-cycle instructions (vsPIC16LC620A-04/P)
Ghi chú thiết kế
Estimated: at 4 MHz clock and 5V supply, the PIC16LC62B typical active current is approximately 2-5 mA depending on peripheral activity. Add a 100 nF decoupling capacitor within 5 mm of the VDD pin and a bulk 10 uF electrolytic on the supply rail. The /MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for brown-out protection. Without these components the MCU may enter undefined reset states on power-up.
The 28-SPDIP through-hole package requires 0.1-inch (2.54 mm) pitch through-hole pads and 0.6-0.8 mm drill holes. Keep the oscillator traces (OSC1, OSC2) shorter than 20 mm and route them away from high-current traces to minimize EMI coupling. Add a guard ring around the analog inputs (RA0-RA5) if connecting to analog signals, and place a ground pour beneath the MCU to reduce thermal gradient and provide low-impedance return paths.
Do not confuse the OTP (one-time programmable) PIC16LC62B with Flash-based PIC16F or PIC18F siblings - the OTP variant cannot be erased and re-programmed. Engineers debugging firmware should buy CERDIP windowed packages (PIC16C62B-04/JW) for development. Also note: the analog inputs (RA0-RA5) share pins with digital I/O and require explicit TRIS/ANSEL configuration before ADC reads; leaving them as digital inputs can damage the analog source if driven above VDD.
The external 4 MHz crystal oscillator needs two 15-33 pF load capacitors (typical 22 pF) placed within 5 mm of the OSC1 and OSC2 pins. For higher-noise environments, use a four-pin crystal module with built-in capacitors rather than a discrete two-pin crystal. The CLKOUT output on OSC2 can drive other PIC devices in a master-slave configuration but should be buffered if it drives more than one slave to avoid signal degradation.
Thông tin tuân thủ
RoHS / REACH compliance and lead-free status were not stated in the provided Verified Web Data; marked unknown. AEC-Q100 is not applicable because this is a general-purpose commercial/industrial MCU not qualified for automotive use.
