PIC16LCE625-04/SO - 8-bit MCU, 4MHz, 3.5KB OTP, 18-SOIC | Microchip
料号： PIC16LCE625-04/SO ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.76 | $2.76 |
| 10 | $2.55 | $25.50 |
| 100 | $2.3 | $230.00 |
| 500 | $2.18 | $1,090.00 |
| 1,000 | $2.09 | $2,090.00 |
PIC16LCE625-04/SO 概述
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory, data RAM, and peripherals (timers, ADC, I/O, communication interfaces) into a single IC. Microcontrollers sit within the broader hierarchy of embedded processors -> microcontrollers -> 8-bit MCUs -> PIC16 family, and they form the lowest-cost, lowest-power tier of programmable logic used in consumer appliances, industrial sensors, and battery-powered IoT nodes. The PIC16C core uses a Harvard RISC architecture with a 14-bit instruction word, which keeps code density high and instruction cycles deterministic at 4 clock ticks per instruction.
Key features of the PIC16LCE625-04/SO include the 3.5KB OTP program memory for one-time-only firmware storage, an internal comparator for analog signal conditioning, a 5-channel 8-bit ADC, and a capture/compare/PWM (CCP) module. Its low-voltage 'LC' family designation supports extended operation down to 2.5V, and the 'E' in the variant suffix indicates an enhanced EEPROM. The device includes a watchdog timer, power-on reset, and brown-out reset for robust embedded operation. The 18-SOIC package provides a 7.50 mm body width suitable for hand-soldering and standard 1.27 mm pitch SOIC footprints.
Architecturally, the PIC16LCE625 uses a 14-bit program-word width with separate data and program buses (Harvard architecture), enabling simultaneous fetch and access of operands. The OTP memory cell is a one-time-only programmable EPROM cell, which historically made this part economical for low-volume production but unsuited to field upgrades. For designs that require re-programmability, Microchip offers flash-based PIC16F equivalents in the same 18-pin SOIC package family.
Typical applications include low-cost consumer electronics, appliance controllers, sensor signal conditioning, battery-powered measurement instruments, and industrial control boards. The 13 I/O pins and integrated ADC make it suitable for reading a few analog sensors and driving a small display or relay outputs.
When designing with this device, plan the firmware to fit within 2K 14-bit words (about 2048 instructions), select the internal 4MHz RC oscillator to minimize external component count, and ensure the EEPROM endurance budget (typically 1M write cycles) is respected for any parameter storage. For new designs, evaluate flash-based PIC16F alternatives that drop into the same 18-SOIC footprint and provide re-programmability and in-circuit debugging via ICSP.
This page synthesizes distributor pricing, drop-in compatible same-package alternatives, and practical design notes for the PIC16LCE625-04/SO that go beyond the manufacturer datasheet and major distributor listings.
直接替换替代料： PIC16LCE625-04/SO ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16LCE625-04/SO （相同外形与封装尺寸） ——差异在于 Package, Supply Voltage Range, Data EEPROM, I/O Pins, Program Memory.
快速对比工具——选择替代料号进行并排对比：
PIC16LCE625-04I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LCE625T-04/SO
✅ 直接替换✓ 有现货
$2.05 / 个
查看数据手册 →PIC16LCE625-04E/SO
✅ 直接替换✓ 有现货
$1.98 / 个
查看数据手册 →PIC16F628-04/SO
✅ 直接替换✓ 有现货
$1.05 / 个
查看数据手册 →PIC16F88-I/SO
✅ 直接替换✓ 有现货
$4.0205 / 个
查看数据手册 →PIC16LCE625-04/SO 最大额定值与电气特性
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory | 3.5 KB (2K x 14) OTP |
| Data RAM | 128 bytes |
| Data EEPROM | 128 bytes |
| 最大时钟频率 | 4 MHz |
| Supply Voltage Range | 2.5 V to 5.5 V (LC low-voltage family) |
| I/O Pins | 13 |
| ADC | 5-channel, 8-bit |
| Timers | 1 x 8-bit, 1 x 16-bit |
| Internal Comparator | Yes (1) |
| CCP Module | 1 (Capture/Compare/PWM) |
| Watchdog Timer | Yes |
| Brown-out Reset / Power-on Reset | Yes |
| 封装 | 18-pin SOIC (SO, 7.50 mm body width, 1.27 mm pitch) |
| 安装类型 | Surface Mount |
PIC16LCE625-04/SO 引脚配置
| 引脚 1 | MCLR#/VPP — Master Clear (reset) input / Programming voltage input |
| 引脚 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| 引脚 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| 引脚 4 | RA2/AN2/CVREF — PORTA bit 2 / Analog input channel 2 / Comparator reference output |
| 引脚 5 | RA3/AN3/C1OUT — PORTA bit 3 / Analog input channel 3 / Comparator 1 output |
| 引脚 6 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| 引脚 7 | RA5/AN4/SS#/C2OUT — PORTA bit 5 / Analog input channel 4 / Slave Select / Comparator 2 output |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | OSC1/CLKIN — Oscillator input / External clock input |
| 引脚 10 | OSC2/CLKOUT — Oscillator output / Clock output |
| 引脚 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| 引脚 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer 1 oscillator input / Capture-Compare-PWM 2 |
| 引脚 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| 引脚 14 | RC3 — PORTC bit 3 |
| 引脚 15 | RC4 — PORTC bit 4 |
| 引脚 16 | RC5 — PORTC bit 5 |
| 引脚 17 | RC6 — PORTC bit 6 |
| 引脚 18 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
典型应用
PIC16LCE625-04/SO 适用于 7 应用s: Consumer Appliance Controllers, Battery-Powered Sensor Nodes, Industrial Control Boards, Automotive Interior Accessories, Educational / Hobby Electronics, Remote Control Transmitter Boards, Test and Measurement Fixtures.
Consumer Appliance Controllers
The PIC16LCE625-04/SO fits consumer appliance controllers because of its 13 I/O pins, integrated 5-channel 8-bit ADC, and CCP/PWM module for driving small loads. The 3.5 KB OTP program memory holds typical washing-machine or microwave user-interface state machines, and the internal comparator simplifies zero-crossing detection for heater control. The 18-SOIC package is hand-solderable for prototypes, while the NRND status of this part means new designs should adopt the flash-based PIC16F628 or PIC16F88 in the same 18-SOIC footprint for production continuity.
推荐
Battery-Powered Sensor Nodes
The PIC16LCE625-04/SO's low-voltage 'LC' family supports operation down to 2.5 V, which lets it run directly from two AA alkaline cells or a single Li-ion cell with a low-dropout regulator. The 4 MHz maximum clock and small code footprint keep active current draw low, while the 128-byte EEPROM stores calibration constants for the sensor front-end. For sensor fusion, the 5-channel ADC reads multiple thermistor, humidity, or photodiode signals into the same 18-SOIC footprint. Pair the MCU with a low-power op-amp such as the MCP6002 for signal conditioning.
推荐
Industrial Control Boards
The PIC16LCE625-04/SO can serve as a low-cost local I/O controller on industrial PCBs, where its 13 I/O pins drive status LEDs, read push-buttons, and bit-bang simple UART communication to a host PLC. The on-board 8-bit ADC handles analog inputs such as 4-20 mA loop current sensing or thermistor temperature monitoring, and the internal comparator triggers fault interrupts on over-current events. For industrial-grade temperature range (-40 C to +85 C), specify the I-suffix variant. The 18-SOIC package withstands standard lead-free reflow profiles for volume assembly.
推荐
Automotive Interior Accessories
Although the PIC16LCE625-04/SO is not AEC-Q100 qualified, it can be used in non-safety automotive interior modules such as ambient lighting controllers, seat-position displays, or accessory switch panels. The internal PWM module drives LED brightness without external driver ICs, and the 8-bit ADC reads potentiometer inputs for dimmer wheels. The 18-SOIC package survives under-hood vibration when properly potted. For safety-critical or AEC-Q100-mandated functions, migrate to PIC16F628 with an automotive-grade Q-1 suffix instead.
推荐
Educational / Hobby Electronics
The PIC16LCE625-04/SO is a classic teaching MCU for embedded-systems courses and hobbyist projects because the PIC16 mid-range instruction set is well documented and supported by free MPLAB X IDE toolchains. The 18-SOIC package is DIP-socket-compatible via an SOIC-to-DIP adapter, allowing students to breadboard prototypes. The 3.5 KB OTP memory is sufficient for class projects involving UART echo, ADC-driven LED dimming, and PWM motor control. For learning re-programmability, instructors typically provide PIC16F628 or PIC16F88 alternatives on the same SOIC breakout board.
推荐
Remote Control Transmitter Boards
The PIC16LCE625-04/SO is well suited for handheld remote control transmitter PCBs because the 13 I/O pins scan matrix keypads, and the internal PWM module synthesizes IR carrier frequencies for TV-style remote protocols. The 2.5 V minimum supply supports 2xAA battery operation, while the 8-bit ADC monitors battery voltage for low-battery indication. The 18-SOIC package keeps the PCB small enough for handheld enclosures. For new designs, the PIC16F628 with hardware USART can replace the bit-banged IR carrier generation with timer-driven PWM.
推荐
Test and Measurement Fixtures
The PIC16LCE625-04/SO provides an inexpensive digital controller for production test jigs, where it sequences relay closures, reads DUT signals through the 8-bit ADC, and reports pass/fail over a bit-banged UART. The 3.5 KB OTP memory stores the test sequence, and the 128-byte EEPROM logs production counters. The 18-SOIC package fits into standardized test-fixture PCB layouts. Designers often pair this MCU with a PICkit programmer for factory firmware loading before OTP lock.
推荐
推荐产品汇总
工程参考数据： PIC16LCE625-04/SO ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16LCE625-04I/SO | PIC16LCE625T-04/SO | PIC16LCE625-04E/SO | PIC16F628-04/SO | PIC16F88-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC |
| Program Memory Type | OTP (3.5 KB) | OTP (3.5 KB) | OTP (3.5 KB) | OTP (3.5 KB) - enhanced EEPROM | Flash (3.5 KB) | Flash (7 KB) |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
| UART/USART | No | No | No | No | USART | USART + MSSP (I2C/SPI) |
| Temperature Grade | Commercial | Industrial (-40C to +85C) | Commercial | Commercial | Commercial | Industrial (-40C to +85C) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active | Active |
关键差异点
- Three same-package Microchip variants provide drop-in flexibility （对比 PIC16LCE625-04I/SO, PIC16LCE625T-04/SO, PIC16LCE625-04E/SO)
- Flash upgrade path on the same 18-SOIC footprint （对比 PIC16F628-04/SO)
- 10-bit ADC and dual serial interfaces available on same footprint （对比 PIC16F88-I/SO)
设计说明
The PIC16LCE625-04/SO is part of the LC low-voltage family and operates from 2.5 V to 5.5 V. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 18), with an additional 10 uF bulk capacitor on the supply rail. For battery-powered designs drawing from 2xAA cells, ensure VDD never falls below 2.5 V during peak transmit events, because the brown-out reset may trigger and reset the MCU unintentionally.
The OTP program memory cannot be erased or rewritten. Any firmware bug found after programming requires physical replacement of the IC, which is expensive in production. For new designs, choose the flash-based PIC16F628 or PIC16F88 in the same 18-SOIC footprint to allow in-system reprogramming via ICSP. If OTP is unavoidable, add a thorough prototype validation phase and freeze firmware as early as possible.
When using the internal RC clock source (no external crystal), leave OSC1 and OSC2 floating or tie OSC1 to VSS through a 100 kohm resistor. Connecting long traces to OSC1/OSC2 without proper guarding will couple noise into the timing reference. For designs that require accurate serial communication or PWM frequency, use an external 4 MHz crystal with two 22 pF load capacitors on OSC1 and OSC2.
At the maximum 4 MHz clock and 5.5 V supply, the PIC16LCE625-04/SO draws approximately 2 mA active current, dissipating only ~11 mW. No thermal management is needed for normal operation. However, the extended LC voltage range allows operation at elevated ambient temperatures; verify that junction temperature stays below +125 C by computing TJ = TA + PD * theta_JA (theta_JA for SOIC-18 is approximately 70 C/W).
合规信息
Compliance data not found in verified distributor listings; refer to the manufacturer datasheet for definitive RoHS, REACH, and lead-free status. AEC-Q100 not applicable - this is a commercial/industrial MCU.
