PIC16LC62BT-04/SO - 4MHz 8-Bit OTP MCU 3.5KB | Microchip
MPN: PIC16LC62BT-04/SO ✓ Hoạt độngPIC16LC62BT-04/SO Tóm tắt
Background: An 8-bit microcontroller (MCU) is a self-contained computing device that integrates a CPU, non-volatile program memory, RAM, and peripheral interfaces on a single die. The PIC16C family uses a Harvard RISC architecture with separate program/data buses and a 14-bit instruction word; OTP (One-Time-Programmable) variants target low-volume and prototyping applications where mask-ROM volumes do not justify mask tooling. Within the broader taxonomy, the PIC16LC62BT belongs to the 16C/16LC mid-range MCU -> 8-bit MCU -> microcontroller -> semiconductor system hierarchy.
Key features include 4 MHz maximum clock input rate (the -04 speed suffix), 22 I/O pins, an internal watchdog timer, on-chip power-on reset, and low-power operation modes. The 28-pin SOIC package is a wide-body surface-mount form factor that supports hand-soldering and standard reflow profiles, while the LC suffix denotes the low-voltage 3.0-5.5 V variant of the PIC16C62B die.
The architecture uses a 14-bit instruction word with 8-bit data path, two file-select registers for banked RAM access, and a hardware multiplier-free ALU. EPROM-based program memory is windowed for prototype erasure, and the device supports in-circuit debugging via the standard PIC ICD interface. Power-saving modes include Sleep with multiple wake-up sources.
Typical applications include appliance control, sensor signal pre-processing, low-cost consumer electronics, industrial control front-ends, and battery-powered instrumentation. The 22 I/O count supports keypad scanning, LED drive, and serial communication simultaneously. Designers choose this OTP variant for prototype-to-low-volume migration paths from PIC16C62A flash parts.
When designing with this device, note that the OTP memory is not erasable in SOIC; choose a windowed CERDIP package for prototype iteration or PIC16F62x flash parts for production. Decoupling requires 100 nF ceramic plus 10 µF bulk capacitors within 1 cm of VDD, and unused I/O pins must be configured as outputs low to minimize current draw.
This page synthesizes distributor pricing, drop-in compatible alternatives from Microchip's PIC16C/LC6x family, and practical design notes not aggregated elsewhere.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC62BT-04/SO — 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 PIC16LC62BT-04/SO (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Core Architecture, Program Memory Type, Operating Temperature Range, Package.
PIC16LC62B-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC62AT-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC622T-04E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC622A-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC620A-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC56A-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC62BT-04/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16C 8-bit RISC (Harvard) |
| Tần số xung maksimum | 4 MHz |
| Program Memory Type | EPROM (OTP, windowed on JW package) |
| Program Memory Size | 3.5 KB (2K x 14 instructions) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present on /128 PIC16C62B |
| I/O Pins | 22 |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial, T suffix tape & reel) |
| Hộp | 28-pin SOIC (SO) - wide-body 300 mil |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life at <30C/85% RH) |
| Watchdog Timer | Yes, on-chip |
| A/D Converter | Not present on PIC16LC62B (no ADC) |
| Serial Interfaces | AUSART (Addressable USART) |
| In-Circuit Debug | ICD via RB6/RB7 (PIC16C6x standard) |
| Instruction Set Size | 35 single-word instructions |
| Interrupt Sources | Multiple, vectored |
Cấu hình chân PIC16LC62BT-04/SO
| Chân 1 | RA2/AN2 — Port A bit 2 / analog input (not used on this part - digital I/O only) |
| Chân 2 | RA3/AN3 — Port A bit 3 / digital I/O |
| Chân 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 4 | RA5/SS/AN4 — Port A bit 5 / SPI slave select / digital I/O |
| Chân 5 | VDD — Positive supply voltage (3.0-5.5 V) |
| Chân 6 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 7 | RB1 — Port B bit 1 / digital I/O |
| Chân 8 | RB2 — Port B bit 2 / digital I/O |
| Chân 9 | RB3 — Port B bit 3 / digital I/O |
| Chân 10 | RB4 — Port B bit 4 / digital I/O |
| Chân 11 | RB5 — Port B bit 5 / digital I/O |
| Chân 12 | RB6/PGC — Port B bit 6 / ICSP clock (ICD clock) |
| Chân 13 | RB7/PGD — Port B bit 7 / ICSP data (ICD data) |
| Chân 14 | VSS — Ground reference |
| Chân 15 | RC0 — Port C bit 0 / digital I/O or Timer1 oscillator |
| Chân 16 | RC1 — Port C bit 1 / digital I/O or Timer1 oscillator |
| Chân 17 | RC2 — Port C bit 2 / digital I/O or PWM output |
| Chân 18 | RC3 — Port C bit 3 / digital I/O or SPI clock |
| Chân 19 | RC4 — Port C bit 4 / digital I/O or SPI data |
| Chân 20 | RC5 — Port C bit 5 / digital I/O or SPI data |
| Chân 21 | RC6 — Port C bit 6 / digital I/O or AUSART TX |
| Chân 22 | RC7 — Port C bit 7 / digital I/O or AUSART RX |
| Chân 23 | VSS — Ground reference (second VSS pin) |
| Chân 24 | VDD — Positive supply (second VDD pin) |
| Chân 25 | OSC2/CLKOUT — Oscillator output / clock output FOSC/4 |
| Chân 26 | OSC1/CLKIN — Oscillator input / external clock in |
| Chân 27 | RA0/AN0 — Port A bit 0 / digital I/O |
| Chân 28 | RA1/AN1 — Port A bit 1 / digital I/O |
Ứng dụng tiêu biểu
PIC16LC62BT-04/SO phù hợp cho 6 Áp dụngs: Industrial Sensor Front-End, Appliance Control Board, Battery-Powered Instrumentation, HVAC Thermostat Board, Automotive Accessory Control, Consumer Remote Control.
Industrial Sensor Front-End
The PIC16LC62BT-04/SO suits industrial sensor signal-conditioning front-ends with 22 I/O pins for parallel sensor arrays. Its 3.0-5.5 V VDD accepts 3.3 V and 5 V transducer outputs without level shifting, while the 4 MHz clock provides 1 us instruction cycle - sufficient for 10 kHz sampling loops on slow sensors like thermistors, strain gauges, and optointerrupters. The 3.5KB OTP program memory holds lookup-table-based linearization routines for non-linear sensors, and 128 bytes RAM buffers calibration constants. Without ADC, pair with external 12-bit SARs like MCP3201 over SPI. The 28-SOIC handles -40 to +85C industrial ambient via the /04I variant.
Được đề xuất
Appliance Control Board
The PIC16LC62BT-04/SO is well-matched to white-goods control boards including washing machines, dishwashers, and microwave ovens where 22 I/O drive relays, keypads, and 7-segment displays. The 3.5KB program holds state-machine code for cycle sequencing while 128 bytes RAM manages mode flags and timing variables. The OTP memory locks firmware to prevent field tampering. Operating from 3.0-5.5 V, the LC variant runs directly from rectified 5 V supplies without LDO regulation. The 4 MHz clock keeps EMI below conducted-noise limits for household appliances. Tape-and-reel packaging supports high-volume SMT assembly lines.
Được đề xuất
Battery-Powered Instrumentation
For battery-powered test instruments and portable data loggers, the PIC16LC62BT-04/SO's 3.0 V minimum VDD enables direct 2xAA/2xAAA battery operation down to depletion, maximizing runtime. The 4 MHz clock at 3.3 V draws under 2 mA active; Sleep mode drops to microamp range for wake-on-timer logging applications. With 3.5KB program space, the part supports FAT-style file structures for SD card data storage over SPI. The 22 I/O count handles 4x4 keypads plus LCD interfaces plus serial output. Industrial-temperature /04I suffix versions operate across -40 to +85C for outdoor instrumentation deployments.
Được đề xuất
HVAC Thermostat Board
Building HVAC thermostats leverage the PIC16LC62BT-04/SO for setpoint control, schedule management, and relay switching. The 22 I/O drive 7-segment displays, pushbuttons, temperature sensors, and HVAC contactors. OTP memory locks the calibration and prevents unauthorized firmware swaps that could bypass safety limits. The 3.0-5.5 V range allows direct 24 VAC rectified operation with minimal regulation. With 3.5KB code space, the part supports PID loops for temperature regulation and weekly programming logic. The wide-body SOIC withstands conformal coating and harsh thermal cycling in plenum-mounted enclosures.
Được đề xuất
Automotive Accessory Control
For non-safety automotive accessories (interior lighting, seat controllers, mirror adjusters), the PIC16LC62BT-04/SO provides adequate processing with 22 I/O driving MOSFET gates and reading Hall-effect position sensors. The 3.5KB program space holds CAN-capable firmware for vehicle network integration or LIN slave protocols. Note this OTP variant is NOT AEC-Q100 qualified; choose PIC16LC62B-04I/SO with extended industrial temperature or migrate to AEC-Q100 parts like PIC16F1939 for under-hood applications. The 28-SOIC package withstands automotive vibration environments with proper PCB staking.
Được đề xuất
Consumer Remote Control
The PIC16LC62BT-04/SO handles consumer IR/RF remote control encoder tasks with 22 I/O for keypad scanning, LED indicators, and IR LED drive. The 3.5KB program space stores multiple protocol stacks (NEC, RC5, RC6, Sony SIRC) and the 4 MHz clock generates precise carrier frequencies. With OTP memory the manufacturer locks the protocol library to prevent clone duplication. The 3.0-5.5 V operation accepts 3 V coin cells directly. Low Sleep current extends battery life to multi-year timeframes. Tape-and-reel packaging enables automated assembly of high-volume remote production.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC62BT-04/SO — 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 | PIC16LC62B-04I/SO | PIC16LC62AT-04I/SO | PIC16LC622T-04E/SS | PIC16LC620A-04/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO) wide-body 300 mil | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SSOP (SS) - narrower body | 28-SOIC (SO) - same |
| Program Memory | 3.5 KB (2K x 14) OTP | 3.5 KB (2K x 14) OTP - same | 1.75 KB (1K x 14) OTP | 3.5 KB (2K x 14) OTP - same | 1 KB OTP |
| Maximum Clock | 4 MHz | 4 MHz - same | 4 MHz - same | 4 MHz - same | 4 MHz - same |
| Operating Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V - same | 3.0 V to 5.5 V - same | 3.0 V to 5.5 V - same | 3.0 V to 5.5 V - same |
| I/O Pins | 22 | 22 - same | 22 - same | 22 - same | 13 |
| Temperature Range | 0 to +70C (commercial, /04) | -40 to +85C (industrial, /04I) | -40 to +85C (industrial, /04I) | -40 to +125C (extended, /04E) | 0 to +70C (commercial) |
Bảo phân biệt quan trọng
- Lower-voltage LC operation vs standard PIC16C62B (vsPIC16C62B (non-LC))
- Larger program memory than earlier PIC16LC62A (vsPIC16LC62A-04/SO)
- Tape-and-reel suffix for SMT assembly (vsPIC16LC62B-04I/SO (tube-packed))
- Industry-standard 8-bit RISC architecture with 35 instructions (vsPIC16C5x baseline)
Ghi chú thiết kế
The PIC16LC62BT-04/SO requires a 100 nF ceramic decoupling capacitor placed within 1 cm of the VDD pin, plus a 10 uF bulk capacitor near the supply entry. Place both VDD pins (5 and 24) and both VSS pins (14 and 23) on low-impedance traces. The LC variant operates from 3.0-5.5 V; below 3.0 V the brown-out detector (configurable threshold) may reset the MCU unexpectedly. Estimate: total supply current at 4 MHz and 5 V is approximately 2 mA active and <5 uA in Sleep, so a small MCP1700 LDO is sufficient for regulation from higher-voltage rails.
Layout the 28-SOIC land pattern per JEDEC MS-013 with 0.05 inch (1.27 mm) pitch and 300 mil body width. Keep traces short on RA and RC ports to reduce EMI; group I/O by function (keypad on PORTB, displays on PORTC) to simplify firmware. Place the 4 MHz crystal or resonator within 5 mm of OSC1/OSC2 pins with a grounded guard ring. Add a 1 M ohm parallel resistor across the crystal to bias the internal inverter into its linear region. For tape-and-reel assembly, ensure no components within 5 mm of the SOIC body to avoid tombstoning during reflow.
Common pitfalls include: (1) choosing the OTP variant when flash reprogrammability is needed - once programmed, OTP cannot be erased in SOIC; only windowed CERDIP allows UV erasure. (2) Confusing PIC16C62B (4.0-6.0 V) with PIC16LC62B (3.0-5.5 V) - the LC prefix denotes the low-voltage variant. (3) Driving the ICSP pins RB6/RB7 with external circuitry during programming - isolate with jumpers or current-limiting resistors. (4) Expecting 35 instructions to handle complex C-style code - PIC assembly is verbose; budget 2x the LOC of equivalent 8051 code. (5) Failing to configure unused I/O as outputs low, causing excessive Sleep current from floating inputs.
For reliable 4 MHz operation, route OSC1/OSC2 traces as a differential pair with the crystal resonator placed symmetrically. Keep digital signal traces away from these pins by at least 3 mm to prevent capacitive coupling that can shift the oscillator frequency. The ICSP connector (typically a 5-pin header for RB6/RB7/VDD/VSS/MCLR/VPP) should be accessible without removing the board, or include test pads if space is constrained. The MCLR pin (typically shared with RA5 or a dedicated pin on some variants) requires a 10 k ohm pull-up to VDD and a 100 nF cap to ground for noise immunity; do not leave MCLR floating.
Thông tin tuân thủ
RoHS status is unknown from distributor data; this OTP SOIC variant is a legacy Microchip part. Not AEC-Q100 qualified - for automotive use choose PIC16F1939 or similar AEC-Q100 flash parts. Conflict-minerals compliance per Microchip policy applies to all PIC products.
