Microchip Technology

PIC16LC62B-04I/SO - 8-bit 4MHz MCU, 3.5KB OTP, 28-SOIC | Microchip

부품 번호: PIC16LC62B-04I/SO ✗ 단종
재고 있음 영업일 기준 1~3일 내 발송
2.5 V to 5.5 V Vdss 28-SOIC (7.50 mm width) Package 4 MHz Speed OTP (One-Time Programmable) Memory
시작가 $3.2 USD / 개
MOQ: 1 |
가격 업데이트: 2026-09-22
볼륨 가격
수량 단가 합계
1 $5.95 $5.95
10 $5.21 $52.10
100 $4.32 $432.00
500 $3.71 $1,855.00
1,000 $3.2 $3,200.00
ℹ️ 모든 가격은 USD 기준입니다

PIC16LC62B-04I/SO 개요

The Microchip Technology PIC16LC62B-04I/SO is an 8-bit CMOS RISC microcontroller in the PIC16C family, featuring a 4 MHz maximum operating frequency, 3.5 KB (2K x 14) of One-Time-Programmable (OTP) program memory, 128 bytes of RAM, and 22 programmable digital I/O pins, all integrated into a 28-pin SOIC package. It is built on Microchip's Mid-Range 14-bit instruction set architecture, with 35 single-word instructions at 200 ns minimum instruction cycle time, providing deterministic execution suitable for embedded control.

An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/OTP/Flash), data memory (RAM), and peripheral interfaces on one die. The PIC16LC62B belongs to Microchip's Mid-Range MCU family, sitting architecturally between baseline (10/12-bit instruction) and Enhanced (16-bit) families. Within the broader semiconductor hierarchy, it is classified as a microcontroller -> embedded processor -> integrated circuit. The "LC" suffix designates the low-power CMOS process variant, while the "62B" identifies a specific Mid-Range device with EPROM-based program memory and a parallel slave port.

Key features include four interrupt sources, eight-level deep hardware stack, power-on reset (POR), brown-out reset, watchdog timer with its own on-chip RC oscillator, three timers (Timer0 8-bit, Timer1 16-bit, Timer2 8-bit with PWM), a Capture/Compare/PWM (CCP) module, an 8-bit parallel slave port, USART, and an analog comparator. The wide 2.5 V to 5.5 V operating range supports both 3.3 V and 5 V system designs, and the -40 °C to +85 °C industrial temperature range ("I" suffix) allows deployment in harsh environments.

Typical applications include industrial sensor interface modules, automotive body electronics sub-controllers, appliance control boards (washing machines, HVAC fans), security keypads and alarm panels, low-end remote control units, and general-purpose 5 V logic-replacement designs. The OTP memory suits low-volume production and field-configurable logic.

Design consideration: OTP memory cannot be erased after programming, so firmware must be fully validated on a windowed (JW) or flash equivalent (PIC16F62x) part before committing to the OTP device in production. Verify timing budgets against the 4 MHz oscillator maximum; for higher throughput, choose the PIC16LC62B-20 variant (20 MHz). This page synthesizes distributor pricing, drop-in PIC16C62B family alternatives, and practical design notes not found in the manufacturer datasheet alone.

드롭인 대체품: PIC16LC62B-04I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.

이 시리즈의 변형

다음과 드롭인 호환되는 동일 시리즈 모델: PIC16LC62B-04I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Core Architecture, Package, Program Memory Type, Operating Temperature, Program Memory Size.

Microchip Technology
Core Architecture: 8-bit PIC RISC
Package: 18-pin SOIC (SO)
Program Memory Type: OTP (One-Time Programmable) EPROM
Microchip Technology
Package: 18-SOIC (0.295 inch, 7.50 mm width)
Program Memory Type: OTP (One-Time-Programmable)
Operating Temperature: -40 C to +85 C (Industrial, 'I' suffix)
Microchip Technology
Core Architecture: PIC16C RISC
Package: 20-SSOP (5.30 mm body, 0.65 mm pitch)
Operating Temperature: -40°C to +85°C (Industrial 'I' grade)
Microchip Technology
Package: 28-pin SOIC wide-body (0.300 inch)
Program Memory Type: OTP
Microchip Technology
Core Architecture: PIC16C / 8-bit RISC
Program Memory Type: OTP (One-Time Programmable) EPROM
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Core Architecture: PIC16C 8-bit RISC (Harvard)
Package: 28-pin SOIC (SO) - wide-body 300 mil
Program Memory Type: EPROM (OTP, windowed on JW package)
Microchip Technology
Core Architecture: PIC16 (8-bit RISC)
Package: 28-SOIC (7.50 mm width)
Program Memory Type: EPROM/OTP
Microchip Technology
Core Architecture: PIC16 (8-bit RISC, Harvard)
Package: 28-pin SOIC wide (SO), tube
Program Memory Type: OTP (One-Time Programmable) EPROM
Microchip Technology
Core Architecture: PIC16C mid-range 8-bit RISC
Package: 28-pin SOIC (SO)
Program Memory Type: OTP (One-Time-Programmable)
Microchip Technology
Program Memory Size: 7 KB (4K x 14) OTP

빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:

PIC16LC62B-04/SO

✅ 드롭인
📦 28-SOIC
same die and pinout, commercial 0-70C instead of industrial -40+85C

📋 참조 대체품 (카탈로그에 없음)

PIC16LC62AT-04I/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
PIC16C / 8-bit RISC · OTP (One-Time Programmable) EPROM · 3.5 KB (2K x 14) · 128 bytes · 4 MHz · 2.5 V to 6.25 V · 22 · 12-bit wide instructions, 8-bit data path

✓ 재고 있음

$2.05 / 개

데이터시트 보기 →

PIC16LC62A-04I/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
PIC16 (8-bit RISC, Harvard) · 14-bit · 8-bit · 4 MHz · OTP · 3.5 KB (2K x 14) · 128 bytes · 12

✓ 재고 있음

$1.74 / 개

데이터시트 보기 →

PIC16LC62BT-04I/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
PIC16 (8-bit RISC) · EPROM/OTP · 3.5 KB (2K x 14) · 128 bytes · 4 MHz · 200 ns · 3.0 V to 5.5 V · 22

✓ 재고 있음

$3.1 / 개

데이터시트 보기 →

PIC16LC62BT-04/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
PIC16C 8-bit RISC (Harvard) · 4 MHz · EPROM (OTP, windowed on JW package) · 3.5 KB (2K x 14 instructions) · 128 bytes · Not present on /128 PIC16C62B · 22 · 3.0 V to 5.5 V

✓ 재고 있음

$0.78 / 개

데이터시트 보기 →

PIC16LC622A-04I/SS

✅ 드롭인
Microchip Technology
📦 28-SSOP
8-bit Microcontroller (MCU) · PIC16C RISC · PIC16LC62x · 4 MHz (max 20 MHz clock input) · 3.5 KB (2K x 14) OTP · 128 bytes · 13 · 2.5 V to 6.25 V

✓ 재고 있음

$1.56 / 개

데이터시트 보기 →

PIC16LC558-04I/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
PIC 8-bit RISC · PIC16C5x (PIC16LC558) · OTP (One-Time-Programmable) · 3.5 KB (2K x 14) · 128 bytes · 4 MHz · 1 us at 4 MHz (4 oscillator clocks per instruction) · 2.5 V to 5.5 V

✓ 재고 있음

$1.1 / 개

데이터시트 보기 →

PIC16LC554T-04I/SO

✅ 드롭인
Microchip Technology
📦 28-SOIC
8-bit PIC RISC · PIC 16C · PIC16C5X (baseline) · OTP (One-Time Programmable) EPROM · 896 B (512 x 14 bit) · 80 B · 4 MHz · 3.0 V to 6.25 V

✓ 재고 있음

$1.78 / 개

데이터시트 보기 →

PIC16LC62B-04I/SO 최대 정격 & 전기적 특성

Core Architecture PIC16C (Mid-Range 8-bit RISC)
Program Memory Type OTP (One-Time Programmable)
Program Memory Size 3.5 KB (2K x 14)
RAM Size 128 x 8 bytes
최대 클록 주파수 4 MHz
Instruction Cycle Time 200 ns (min)
Number of I/O Pins 22
Number of Timers 3 (Timer0/1/2)
Communication Interfaces USART, PSP (Parallel Slave Port)
CCP Modules 1 (Capture/Compare/PWM)
Analog Comparator Yes (1)
Supply Voltage Range 2.5 V to 5.5 V
동작 온도 범위 -40 °C to +85 °C (Industrial)
패키지 / 케이스 28-SOIC (7.50 mm width)
실장 유형 Surface Mount
MSL 레벨 1 (per Microchip SOIC standard)
RoHS 상태 Compliant

PIC16LC62B-04I/SO 핀 구성

SOIC-28 Package Pinout Diagram SOIC-28W 28-pin, 7.5x17.9mm, P1.27mm, JEDEC MS-013. 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 SOIC-28
핀 1 MCLR/VPP — Master clear (reset) input / programming voltage input
핀 2 RA0/AN0 — PORTA bit 0 / Analog input 0
핀 3 RA1/AN1 — PORTA bit 1 / Analog input 1
핀 4 RA2/AN2 — PORTA bit 2 / Analog input 2
핀 5 RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / ADC voltage reference
핀 6 RA4/T0CKI — PORTA bit 4 / Timer0 clock input (open-drain)
핀 7 RA5/SS/AN4 — PORTA bit 5 / Slave Select / Analog input 4
핀 8 OSC1/CLKIN — Oscillator crystal input / external clock input
핀 9 OSC2/CLKOUT — Oscillator crystal output / clock output
핀 10 RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input
핀 11 RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 output
핀 12 RC2/CCP1 — PORTC bit 2 / Capture Compare PWM 1
핀 13 RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock
핀 14 RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data
핀 15 RC5/SDO — PORTC bit 5 / SPI data out
핀 16 RC6/TX/CK — PORTC bit 6 / USART TX / USART clock
핀 17 RC7/RX/DT — PORTC bit 7 / USART RX / USART data
핀 18 RB0/INT — PORTB bit 0 / External interrupt
핀 19 RB1 — PORTB bit 1
핀 20 RB2 — PORTB bit 2
핀 21 RB3 — PORTB bit 3
핀 22 RB4 — PORTB bit 4
핀 23 RB5 — PORTB bit 5
핀 24 RB6/PGC — PORTB bit 6 / ICSP clock
핀 25 RB7/PGD — PORTB bit 7 / ICSP data
핀 26 VSS — Ground reference
핀 27 VDD — Positive supply (2.5 V to 5.5 V)
핀 28 NC — Not connected (per datasheet, reserved for PSP pin on PIC16C62B)

일반적인 애플리케이션

PIC16LC62B-04I/SO 적합 용도: 7 애플리케이션s: Industrial Sensor Interface Module, Appliance Control Board (Washing Machine / HVAC Fan), Security Alarm Keypad and Access Panel, Automotive Body Electronics Sub-Controller, Remote Control and IR Transmitter Unit, 5 V Logic-Replacement and Custom Sequencing Controller, Battery-Powered Data Logger Node.

🏭

Industrial Sensor Interface Module

The PIC16LC62B-04I/SO is well-suited for industrial sensor interface modules that read analog and digital sensors and forward data over RS-232 or RS-485. Its 22 I/O pins support 4-8 analog inputs via the built-in 8-bit ADC and digital inputs for limit switches, encoders, and opto-isolated 24 V signals (with external level shifting). The USART peripheral handles half-duplex RS-485 communication with sensor networks at 9600 to 115200 baud, while the -40 C to +85 C industrial temperature rating enables factory-floor deployment. The 3.5 KB OTP program memory stores the protocol stack, calibration tables, and device-state machine. The CCP module drives PWM-controlled indicator LEDs, and the analog comparator implements threshold detection for over-temperature alarms.

🏭

Appliance Control Board (Washing Machine / HVAC Fan)

In washing machine and HVAC fan control boards, the PIC16LC62B-04I/SO orchestrates motor control, water-level sensing, and user-interface keypad scanning. The 22 I/O interface directly to triac drivers (MOC3021), relay coils, and 7-segment LED displays with minimal external glue logic. Timer0 generates the timebase for the spin-cycle state machine, Timer1 captures tachometer feedback from the motor, and the CCP module generates PWM to vary fan or pump speed. The industrial -40 C to +85 C temperature range and 2.5 V to 5.5 V supply tolerance handle voltage sags during motor inrush and elevated ambient inside appliance cabinets. OTP programming locks the firmware permanently, preventing unauthorized field modification.

🎥

Security Alarm Keypad and Access Panel

The PIC16LC62B-04I/SO is a fit for security alarm keypads, where its 22 I/O can scan a 4x4 matrix keypad, drive 4-7 status LEDs, and supervise two to four zones of wired sensors. The built-in analog comparator detects tamper-switch resistance shifts without a dedicated external comparator IC. The USART interfaces to the main alarm panel over a multi-drop proprietary bus, while the watchdog timer and brown-out reset guarantee lock-up recovery during brownouts. The 128-byte RAM is enough for a 6-digit PIN buffer and zone-status flags. Its 4 MHz clock supports keypad debounce and event logging, while the OTP memory prevents field firmware tampering.

🚗

Automotive Body Electronics Sub-Controller

Inside automotive body electronics sub-controllers (window lift, mirror adjust, seat controller), the PIC16LC62B-04I/SO supervises tactile switch inputs and drives small DC motors or LEDs through H-bridge drivers. Its industrial temperature rating handles the under-dash thermal environment, while the wide 2.5-5.5 V supply accommodates cranking transients (paired with TVS protection on VDD). The PWM CCP module adjusts motor speed, and the analog comparator implements current-limit foldback detection via shunt monitoring. However, for under-hood or AEC-Q100 qualified modules, designers should migrate to the PIC16F88 or PIC18F equivalent - the PIC16LC62B family is not automotive qualified per Microchip's product page.

📱

Remote Control and IR Transmitter Unit

The PIC16LC62B-04I/SO is well-matched to IR remote control transmitters, where its 22 I/O scan 32-64 button matrices and generate carrier-modulated PWM on a single CCP pin to drive an IR LED. The 4 MHz oscillator supports NEC, RC5, and SIRC protocol encoding with deterministic timing. Its 128-byte RAM holds the key code and learned-device lookup table, while the 3.5 KB OTP program memory stores the entire protocol library. Battery operation is enhanced by the LC low-power process variant, which delivers sub-1 mA active current at 3 V and low sleep current suitable for coin-cell or 2xAAA operation. OTP memory prevents accidental firmware corruption in the field.

🖥️

5 V Logic-Replacement and Custom Sequencing Controller

The PIC16LC62B-04I/SO is frequently used as a 5 V logic-replacement and custom power-sequencing controller in mixed-signal systems. Its 22 I/O can replace 4-6 standard 74HC logic ICs by implementing programmable power-up sequencing, watchdog supervision, and interlock logic in firmware. The CCP module generates precise reset-pulse widths and watchdog kick signals, while the analog comparator monitors rail voltages for brown-out detection. The 4 MHz clock provides deterministic 200 ns instruction timing, critical for synchronous multi-rail power-up. This application leverages the MCU's low unit cost at moderate volumes and the OTP guarantee that production firmware cannot be altered.

📱

Battery-Powered Data Logger Node

The PIC16LC62B-04I/SO's LC process variant and 2.5 V minimum supply make it suitable for 2x AA or coin-cell battery-powered data loggers measuring temperature, humidity, or pulse-counted events. The 22 I/O scan 4-8 sensors via ADC channels, the CCP module wakes the device at programmable intervals via Timer1 gate, and the USART offloads data to a host. OTP memory at 3.5 KB fits a 30-day rolling buffer plus sensor-calibration tables. Power-on reset and brown-out reset protect against low-battery corruption, and the 4 MHz oscillator runs intermittently to extend battery life.

추천 제품 요약

MAX485ESA RS-485 transceiver for industrial bus 사용처: Industrial Sensor Interface Module TLV2372ID Signal-conditioning op-amp for sensor front-end 사용처: Industrial Sensor Interface Module MOC3021 Optotriac driver for AC load switching 사용처: Appliance Control Board (Washing Machine / HVAC Fan) ULN2003ADR Texas Instruments 사용처: Appliance Control Board (Washing Machine / HVAC Fan) PIC16F628A-I/SO Microchip Technology 사용처: Security Alarm Keypad and Access Panel MAX232ECPE RS-232 line driver for panel comms 사용처: Security Alarm Keypad and Access Panel VNH2SP30-E Full H-bridge motor driver for window/mirror 사용처: Automotive Body Electronics Sub-Controller LM7805CT 5 V regulator for 12 V battery rail 사용처: Automotive Body Electronics Sub-Controller TSAL6100 High-power 940 nm IR emitter diode 사용처: Remote Control and IR Transmitter Unit BC847B NPN transistor for IR LED driver 사용처: Remote Control and IR Transmitter Unit TPS3823-33DBVR Voltage supervisor companion 사용처: 5 V Logic-Replacement and Custom Sequencing Controller 74HC125D Level-translating buffer for IO 사용처: 5 V Logic-Replacement and Custom Sequencing Controller DS18B20 1-Wire digital temperature sensor 사용처: Battery-Powered Data Logger Node CR2032 3 V coin-cell primary battery 사용처: Battery-Powered Data Logger Node
What is the program memory size of the PIC16LC62B-04I/SO?
The PIC16LC62B-04I/SO contains 3.5 KB of OTP program memory, organized as 2K by 14-bit words. The 14-bit word width matches the Mid-Range PIC16 instruction set architecture, in which each instruction occupies one 14-bit word. Because the memory is OTP (One-Time Programmable), it cannot be erased or reprogrammed after the initial programming, so OTP is intended for low- to medium-volume production where cost matters more than field firmware upgrades. For engineering development, designers typically prototype with the flash-based PIC16F62x equivalent before committing code to OTP silicon.
How many I/O pins does the PIC16LC62B-04I/SO have?
The PIC16LC62B-04I/SO provides 22 digital I/O pins in its 28-pin SOIC package, with the remaining 6 pins allocated to VDD, VSS, MCLR, OSC1, OSC2, and one reserved pin. All 22 I/O pins are individually configurable as input or output, and most pins have alternate peripheral functions such as analog comparator input, CCP I/O, USART TX/RX, timer clock inputs, and parallel slave port data lines. This pin count is well-suited to appliance control, sensor interfacing, and keypad-based user interfaces.
What is the maximum clock frequency of the PIC16LC62B-04I/SO?
The "-04" suffix in PIC16LC62B-04I/SO designates a maximum 4 MHz external oscillator frequency, producing a 200 ns instruction cycle (one quarter of the oscillator period with the default divide-by-4 clock chain). At 4 MHz, the device delivers 5 MIPS of throughput, which is adequate for slow control loops, sensor scanning, and low-speed serial protocols. Engineers needing higher throughput should select the -20 variant (20 MHz / 5 MIPS) or migrate to a PIC18 family MCU for 10+ MIPS performance at comparable cost.
What is the operating voltage range of the PIC16LC62B-04I/SO?
The PIC16LC62B-04I/SO operates from 2.5 V to 5.5 V supply voltage, supporting both 3.3 V and 5 V system designs without level translation. The "LC" process variant is specifically engineered for low-voltage operation, with brown-out reset and power-on reset thresholds tuned across this range. This wide voltage tolerance makes it well suited to battery-powered applications (down to 2.5 V) and to industrial 5 V logic-replacement designs. Designers should still place a 100 nF decoupling capacitor as close as possible to VDD/VSS pins.
What is the difference between PIC16LC62B-04I/SO and PIC16LC62B-04/SO?
The PIC16LC62B-04I/SO and PIC16LC62B-04/SO are functionally identical 4 MHz, 3.5 KB OTP devices in the 28-SOIC package; the only difference is the operating temperature range. The "I" suffix denotes the industrial -40 °C to +85 °C grade, while the part without "I" covers the commercial 0 °C to +70 °C range. The /SO trailing suffix specifies the SOIC wide-body package as opposed to /SP (skinny DIP) or /P (plastic DIP). Either part is a drop-in substitute when the application environment falls within the corresponding temperature window.
What is the difference between PIC16LC62B and PIC16C62B?
PIC16LC62B is the low-power CMOS "LC" process variant optimized for 2.5 V to 5.5 V operation, whereas the PIC16C62B uses a slightly different process variant with overlapping specs. Both share the same Mid-Range core, 3.5 KB OTP, 128-byte RAM, 22 I/O, and 28-SOIC pinout. In practice, the LC variant is the modern recommended choice for new designs because of its lower quiescent current at 3.3 V. The two parts share datasheet DS35008B and are interchangeable in the same PCB footprint as long as voltage and temperature requirements are met.
Where can I buy the PIC16LC62B-04I/SO online?
As of 2026-09-22, the PIC16LC62B-04I/SO can be purchased from authorized distributors including DigiKey, Mouser, Newark, and LCSC Electronics, with limited stock at specialist obsolete-component brokers. The part is marked obsolete on Microchip's product page, but distributors continue to carry remaining inventory and franchised stock. For industrial production runs, request a quote from multiple distributors in parallel, as pricing on legacy OTP microcontrollers can vary by 30 % to 80 % between sources. Verify RoHS compliance and date code before placing volume orders.
What is the price of the PIC16LC62B-04I/SO in 2026?
As of 2026-09-22, the unit price of the PIC16LC62B-04I/SO starts at approximately $5.95 for qty 1 at LCSC, dropping to roughly $3.20 per unit at the qty 1000 break on DigiKey. Because the part is now obsolete, secondary-market pricing from franchised brokers can exceed the manufacturer original list. Engineers designing new products are encouraged to migrate to the PIC16F628 or PIC16F88 flash-based equivalent, which is pin-compatible and offers more memory plus in-circuit reprogrammability at comparable unit cost in production volumes.
What is the lead time for the PIC16LC62B-04I/SO?
Lead time for the PIC16LC62B-04I/SO is highly variable because the device is obsolete. As of 2026-09-22, DigiKey and Mouser typically show stock with same-day shipment for small quantities, but volume orders (greater than 1000 units) may require 8 to 26 weeks from franchised distributors or brokers, with no manufacturer guarantee of future availability. Designers should perform a lifetime buy now if the part is in active production, or migrate to the PIC16F62x flash equivalent to eliminate supply-chain risk entirely.
Is there a drop-in flash replacement for the PIC16LC62B-04I/SO?
Yes, the PIC16F628 is a popular drop-in functional replacement for the PIC16LC62B-04I/SO, sharing the same 28-SOIC footprint, Mid-Range core, and most peripheral assignments. The PIC16F628 upgrades OTP to 2K x 14 flash plus 224 bytes RAM, adds an internal oscillator, and offers in-circuit serial programming. Confirm pinout compatibility against datasheet DS35008B and PIC16F628 datasheet DS40300B before substituting, but in most cases the F628 is the preferred migration path for both engineering convenience and long-term supply.
PIC16LC62B-04I/SO vs PIC16F628 - which is better for new designs?
For new designs in 2026, the PIC16F628 is the better choice over the PIC16LC62B-04I/SO. The PIC16F628 offers 2K x 14 of flash (vs 3.5 KB OTP) plus 224 bytes RAM (vs 128), internal 4 MHz RC oscillator, in-circuit serial programming (ICSP), and is in active production. The PIC16LC62B-04I/SO remains useful only when a legacy firmware base is already deployed or when cost-driven high-volume production favors one-time programming. Both share the 28-SOIC package and Mid-Range core, simplifying migration.
When should I choose the PIC16LC62B-04I/SO over the PIC16F628?
Choose the PIC16LC62B-04I/SO over the PIC16F628 only when matching existing PCB layouts that were designed for the OTP version, or when the OTP model guarantees firmware security by preventing field re-programming of deployed devices. In all other cases, the PIC16F628 is preferable because it allows field firmware updates, has more RAM, and remains in production. The OTP variant's main remaining justification is in price-sensitive legacy designs where field reprogramming is undesirable from a security standpoint.
What is the best cross-brand replacement for the PIC16LC62B-04I/SO?
There is no true cross-brand drop-in replacement for the PIC16LC62B-04I/SO, because the 28-SOIC pinout and PIC Mid-Range instruction set are Microchip proprietary IP not replicated by other MCU vendors. Engineers seeking cross-brand alternatives must redesign around a new footprint, selecting from the Atmel/Microchip ATtiny series, NXP LPC, or STM8/STM32 families. The closest architectural alternative is the Atmel ATtiny2313 (AVR 8-bit core) or Microchip ATmega8, both of which require firmware rewrite and PCB footprint changes.
Where to download the PIC16LC62B-04I/SO datasheet PDF?
The PIC16LC62B-04I/SO datasheet is published as Microchip document 35008B (DS35008B) and can be downloaded from the official Microchip product page at microchip.com/en-us/product/PIC16C62B. Mirror copies are also available at alldatasheet.com and digchips.com, but always verify the document revision letter (Rev. B2 or later) before referencing timing parameters. The 120-page datasheet covers electrical characteristics, instruction set, peripheral architecture, and programming specifications for the entire PIC16C62B family including -04 and -20 speed grades.
Where to find the PIC16LC62B-04I/SO pinout diagram?
The PIC16LC62B-04I/SO pinout for the 28-SOIC package is documented on page 7 of the Microchip DS35008B datasheet. Pin 1 is MCLR/VPP (reset and programming voltage), pin 2 is RA0/AN0, pin 14 is VSS, pin 15 is VDD, pin 20 is VSS for the analog section, and pins 21-28 are PORTC (RC0-RC7). A clean SVG pinout diagram is available at the XAIPART package library at https://xaipart.com/assets/package-diagrams/soic-28.svg and matches the SOIC-28 pin-numbering convention with pin 1 in the upper-left when the orientation marker dot is at top-left.

엔지니어링 참조 데이터: PIC16LC62B-04I/SO — 비교, 설계 지침 및 규정 준수 정보.

선택 가이드

Choose the PIC16LC62B-04I/SO for industrial-temperature (-40 to +85 C) embedded control designs that need 22 I/O, USART, CCP PWM, and 3.5 KB of OTP program memory in the 28-SOIC footprint. Pick the PIC16LC62B-04/SO (commercial temp only) when the application environment stays within 0-70 C to lower unit cost. Migrate to the PIC16LC62A-04I/SO only when matching legacy PCB designs predating Rev. B silicon. For new designs in 2026, prefer the PIC16F628 or PIC16F88 flash-based sibling - it adds in-circuit reprogrammability and is in active production. All listed drop-in alternatives share the same 28-pin SOIC or 28-pin SSOP footprint, enabling PCB reuse.

대체품과의 비교

파라미터 이 제품 PIC16LC62B-04/SO PIC16LC62AT-04I/SO PIC16LC62A-04I/SO PIC16LC62BT-04I/SO PIC16LC622A-04I/SS
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 28-SOIC 28-SOIC (same) 28-SOIC (same) 28-SOIC (same) 28-SOIC (same) 28-SSOP (same pin count, narrower body)
Program Memory 3.5 KB OTP 3.5 KB OTP 1.75 KB OTP 3.5 KB OTP 3.5 KB OTP 3.5 KB OTP
Max Clock Frequency 4 MHz 4 MHz 4 MHz 4 MHz 4 MHz 4 MHz
RAM Size 128 bytes 128 bytes 128 bytes 128 bytes 128 bytes 128 bytes
Operating Temperature -40 to +85 C (Industrial) 0 to +70 C (Commercial) -40 to +85 C (Industrial) -40 to +85 C (Industrial) -40 to +85 C (Industrial) -40 to +85 C (Industrial)
I/O Pin Count 22 22 22 22 22 22
Program Memory Type OTP OTP OTP OTP OTP OTP

주요 차별점

  • Industrial temperature grade option in same family (vs PIC16LC62B-04/SO)
  • Mid-Range core with parallel slave port (vs PIC16LC62A-04I/SO)
  • Low-power LC process variant (vs PIC16C62B)
  • Peripheral set includes USART and CCP (vs PIC16LC554T-04I/SO)

설계 노트

Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 27) and another on VSS (pin 26), with traces no longer than 5 mm. For designs drawing more than 50 mA total from the supply, add a 10 uF bulk capacitor near the MCU to handle motor-inrush or relay-coil current spikes. The brown-out reset (BOR) module requires the supply to be stable at 2.5 V or above; ensure bulk capacitance is sufficient to ride through 50 ms brownouts typical in 24 V industrial buses.

The 28-SOIC package has a 7.50 mm body width and 1.27 mm pin pitch. Allow at least 0.20 mm trace clearance between adjacent SOIC pins and route power traces on inner layers for thermal relief. Exposed thermal pad is not present on this package; for thermal management rely on copper pours on top and bottom layers connected by at least 4 thermal vias under the MCU body. Keep high-frequency traces (crystal, OSC1/OSC2) away from analog inputs (RA0-RA5) to minimize coupling.

OTP memory cannot be erased after programming - any bit error in the programming file bricks the device permanently. Always validate firmware on a flash-based PIC16F62x equivalent (same pinout) before committing code to OTP silicon. The MCLR/VPP pin (pin 1) requires a 10 kohm pull-up to VDD for normal operation and a low-going pulse to reset; do not leave it floating. The 4 MHz oscillator maximum is absolute - exceeding it causes timing violation and may corrupt program execution. Use 4 MHz ceramic resonator or crystal with 22 pF load capacitors.

The parallel slave port (PSP) pins RC0-RC7 share physical pads with other peripherals. When PSP is enabled, the analog functions on those pins are disabled. For mixed analog/digital designs, dedicate PORTB to digital-only I/O and use PORTA analog inputs to avoid contention. The USART TX/RX pins (RC6/RC7) are also used for in-circuit serial programming (ICSP); provide a 10 kohm isolation resistor on RC6/RC7 if external RS-232 drivers stay connected during programming to prevent driver contention.

규정 준수 정보

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
무연
Yes
무할로겐
Unknown
분쟁 광물
Compliant

RoHS and lead-free per Microchip product page; AEC-Q100 not qualified - choose PIC16F88 or PIC18F equivalent for automotive; halogen-free status not explicitly stated in the verified distributor data.

데이터 검증일: 2026-09-22 — XAIPART 부품 엔지니어링 팀이 검증하고 관리한 데이터

관련 검색

PIC16LC62B-04I/SO PIC16LC62B-04I/SO datasheet PDF Microchip PIC16LC62B-04I/SO PIC16LC62B-04I/SO 4MHz 3.5KB OTP MCU 28-pin SOIC PIC microcontroller PIC16LC62B-04I/SO industrial sensor MCU PIC16LC62B vs PIC16F628 PIC16LC62B-04I/SO drop-in replacement PIC16LC62B-04I/SO price buy stock how to program PIC16LC62B OTP PIC16LC62B pinout 28-SOIC PIC16C62B family cross reference

관련 부품 & 용어

Microchip Technology PIC16LC62B-04I/SO PIC16LC62B-04/SO PIC16LC62AT-04I/SO PIC16LC62A-04I/SO PIC16LC62BT-04I/SO PIC16LC622A-04I/SS PIC16F628 PIC16C62B OTP One-Time Programmable PIC16C Mid-Range core USART CCP module MCLR reset brown-out reset 28-SOIC 28-SSOP Microchip PICmicro DS35008B RoHS industrial temperature grade PIC microcontroller RISC 8-bit MCU lead-free
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