PIC16LC712-04/P - 8-bit 20MHz 1.75KB EPROM MCU DIP-18 | Microchip
料号： PIC16LC712-04/P ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.95 | $295.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.2 | $2,200.00 |
PIC16LC712-04/P 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and programmable I/O peripherals on one die. The PIC16LC712 belongs to the mid-range PIC16 family that sits within Microchip's 8-bit PIC microcontroller portfolio, which itself is the company's foundational product line for embedded control. Because it integrates analog and digital peripherals directly on-chip, an MCU replaces dozens of discrete logic ICs, shrinking BOM cost and PCB area while enabling firmware-driven flexibility that discrete hardware cannot match.
Key features of the PIC16LC712-04/P include only 35 single-word instructions to learn, all single-cycle except program branches (which take two cycles), an integrated 8-bit A/D converter, a Capture/Compare/PWM (CCP) module, three timers (Timer0 8-bit, Timer1 16-bit with sleep-mode crystal increment, Timer2 8-bit), 13 digital I/O pins, and a programmable code-protection mechanism. The wide 2.5 V to 5.5 V supply range makes it compatible with both 3.3 V and 5 V system rails, simplifying mixed-voltage designs. The Harvard RISC architecture delivers deterministic instruction throughput critical for real-time control loops.
The internal architecture uses a 14-bit instruction word with separate program and data buses (Harvard architecture), allowing instruction fetch and operand access to occur in the same clock cycle. The 1.75KB EPROM program memory is one-time-programmable (UV-erasable on windowed CERDIP variants) and is suitable for low-to-medium volume production. The brown-out reset, watchdog timer, and power-on reset are standard reliability features that protect the MCU against code runaway and unstable supply rails.
Typical applications include low-power embedded control, sensor interfacing with on-chip A/D conversion, motor and lighting PWM control via the CCP module, consumer appliance controllers, battery-powered instrumentation, and hobbyist/educational development platforms. Its 33 I/O ports and analog peripherals suit prototyping through moderate-volume industrial designs.
When designing with this part, note that the EPROM memory requires a UV eraser for reprogramming on windowed packages, so this MCU is best suited for development and low-volume production rather than field-reprogrammable deployments. Ensure decoupling capacitors (100 nF ceramic plus bulk) are placed close to VDD/VSS, and verify the chosen oscillator mode matches your crystal specification and load capacitance.
This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical design notes for the PIC16LC712-04/P that complement the manufacturer datasheet and help engineers quickly evaluate replacement and upgrade paths.
直接替换替代料： PIC16LC712-04/P ——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： PIC16LC712-04/P （相同外形与封装尺寸） ——差异在于 Package, Program Memory Type, Mounting Type, A/D Converter, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16C712-04/P
✅ 直接替换📋 参考替代料（不在目录中）
PIC16LC711-04/P
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.55 / 个
查看数据手册 →PIC16F712-I/P
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16C711-04/P
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.54 / 个
查看数据手册 →PIC16F716-I/P
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →PIC16LC712-04/P 最大额定值与电气特性
| Core Architecture | 8-bit PIC RISC |
| Program Memory Type | EPROM |
| Program Memory Size | 1.75 KB |
| RAM Size | 128 bytes |
| 最大时钟频率 | 20 MHz |
| Instruction Cycle | 200 ns |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 13 |
| 封装 | PDIP-18 (through-hole DIP, 0.300 INCH) |
| Terminal Form | Through-Hole |
| Number of Terminals | 18 |
| Temperature Grade | Commercial |
| A/D Converter | 8-bit on-chip |
| CCP Module | Capture/Compare/PWM |
| Timers | Timer0 (8-bit), Timer1 (16-bit), Timer2 (8-bit) |
| Instruction Set | 35 single-word instructions |
PIC16LC712-04/P 引脚配置
| 引脚 1 | RA2/AN2 — Port A bit 2 / analog input channel 2 |
| 引脚 2 | RA3/AN3 — Port A bit 3 / analog input channel 3 |
| 引脚 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| 引脚 4 | MCLR — Master clear (reset) input, active low |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RB0/INT — Port B bit 0 / external interrupt input |
| 引脚 7 | RB1 — Port B bit 1 |
| 引脚 8 | RB2 — Port B bit 2 |
| 引脚 9 | RB3/CCP1 — Port B bit 3 / Capture/Compare/PWM channel 1 |
| 引脚 10 | RB4 — Port B bit 4 |
| 引脚 11 | RB5 — Port B bit 5 |
| 引脚 12 | RB6 — Port B bit 6 |
| 引脚 13 | RB7 — Port B bit 7 |
| 引脚 14 | VDD — Positive supply voltage |
| 引脚 15 | OSC2/CLKOUT — Oscillator output / clock output |
| 引脚 16 | OSC1/CLKIN — Oscillator input / external clock input |
| 引脚 17 | RA0/AN0 — Port A bit 0 / analog input channel 0 |
| 引脚 18 | RA1/AN1 — Port A bit 1 / analog input channel 1 |
典型应用
PIC16LC712-04/P 适用于 6 应用s: Battery-Powered Sensor Node, PWM Motor Speed Controller, Consumer Appliance Control Board, Hobbyist and Educational Development Platform, Industrial Control and Instrumentation, Lighting Control and Dimming Systems.
Battery-Powered Sensor Node
The PIC16LC712-04/P is well suited to battery-powered sensor nodes because its 2.5 V to 5.5 V supply range lets it run directly from a single lithium cell or two AAs without an additional boost regulator. Its on-chip 8-bit A/D converter samples analog sensors such as temperature, photocell, or soil-moisture probes without external ADC hardware, reducing BOM count. At slower clock speeds the LC process delivers measurably lower active current than the standard C variant, which is critical for duty-cycled sleep modes. Designers should set the brown-out reset voltage just below the cell cutoff to protect data integrity, and leverage Timer1's sleep-mode crystal increment for low-power timekeeping between samples.
推荐
PWM Motor Speed Controller
The PIC16LC712-04/P's Capture/Compare/PWM module generates accurate PWM signals to drive small DC motors, fans, or solenoids at variable duty cycles. Its 20 MHz clock and 200 ns instruction cycle provide deterministic PWM period resolution that suits brushed-DC and low-power stepper control loops. The three on-chip timers support closed-loop tachometer feedback using Timer0 for pulse counting while the CCP module drives the power stage. The wide 2.5-5.5 V supply range simplifies integration with both 3.3 V logic gate drivers and 5 V H-bridge stages. For added robustness, the watchdog timer resets the MCU if a stall-detection algorithm hangs.
推荐
Consumer Appliance Control Board
The PIC16LC712-04/P is a strong fit for consumer appliance control boards such as coffee makers, washing-machine sub-modules, and small kitchen appliances where cost matters more than field-reprogrammability. Its 1.75 KB EPROM holds appliance firmware plus calibration tables, while the 128-byte RAM comfortably manages state machines for heating profiles or timer sequences. The on-chip A/D reads thermistor or water-level sensors directly, and the CCP module drives triac-trigger pulses for heater or pump switching. The 18-pin PDIP package is friendly to through-hole wave soldering on low-cost appliance PCBs and survives high-humidity factory environments with proper conformal coating.
推荐
Hobbyist and Educational Development Platform
The PIC16LC712-04/P is a classic mid-range PIC for hobbyists learning embedded programming, supported by Microchip's MPLAB X IDE, the XC8 compiler, and a vast library of application notes, tutorials, and community code. Its 35-instruction PIC16 mid-range core is widely documented in textbooks and online courses, lowering the learning curve. The 18-pin PDIP through-hole package is breadboard-friendly, accepts standard 0.1-inch headers, and is easy to socket and swap. Programming is performed via ICSP using any PICkit programmer, which makes classroom labs inexpensive to set up. The on-chip A/D and PWM peripherals let students progress from LED blinking to motor control on the same chip.
推荐
Industrial Control and Instrumentation
The PIC16LC712-04/P handles industrial control tasks such as panel meters, setpoint controllers, and process-loop sub-assemblies where 5 V or 24 V-derived rails are common. Its 8-bit A/D converter reads 4-20 mA loop signals via a sense resistor, while the CCP module drives indicator LEDs or buzzer alerts. The brown-out reset and watchdog timer protect against the supply transients typical of industrial cabinets with inductive loads. Although EPROM-based and not field-reprogrammable, the part is well-suited to fixed-function industrial designs where firmware rarely changes after commissioning. Conformal coating and proper grounding extend reliability in factory environments with motor drives and relay switching.
推荐
Lighting Control and Dimming Systems
The PIC16LC712-04/P delivers dimming and color-mixing control for low-voltage LED strips and accent lighting. Its CCP module outputs PWM dim signals at audio-immune frequencies above 100 Hz, eliminating flicker while supporting logarithmic eye-response curves via software gamma correction. The on-chip A/D reads ambient light sensors or potentiometer dim knobs, and Timer2's PWM mode provides hardware-based PWM with minimal CPU overhead. The wide supply range accepts both 3.3 V logic levels and 5 V analog sensor rails, simplifying mixed-signal lighting designs. Its small 18-pin PDIP package fits compact inline dimmer modules and DMX-512 sub-node controllers.
推荐
推荐产品汇总
工程参考数据： PIC16LC712-04/P ——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 | PIC16C712-04/P | PIC16LC711-04/P | PIC16F712-I/P | PIC16F716-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-18 (through-hole) | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same |
| Program Memory Type | EPROM (1.75 KB) | EPROM (1.75 KB) | EPROM (1.75 KB) | Flash (1.75 KB) | Flash (3.5 KB) |
| Supply Voltage | 2.5 V to 5.5 V | 4.0 V to 6.0 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| A/D Converter | 8-bit, 4 channels | 8-bit, 4 channels | None | 8-bit, 4 channels | 8-bit, 5 channels |
| CCP/PWM Module | Yes (1 channel) | Yes (1 channel) | Yes (1 channel) | Yes (1 channel) | Yes (enhanced, multiple) |
| Field Reprogrammable | No (EPROM, UV-erase on windowed only) | No (EPROM) | No (EPROM) | Yes (Flash, in-circuit) | Yes (Flash, in-circuit) |
关键差异点
- Integrated 8-bit A/D converter on-chip （对比 PIC16LC711-04/P)
- Flash-based in-circuit reprogrammability （对比 PIC16F712-I/P)
- Low-voltage operation down to 2.5 V （对比 PIC16C712-04/P)
设计说明
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) with the ground return directly to the VSS pin (pin 5) using a short, wide PCB trace. Add a bulk electrolytic capacitor (10 uF or larger) on the same supply rail near the MCU to suppress voltage transients when the CCP module switches inductive loads. The PIC16LC712's brown-out reset should be enabled in the configuration bits to protect RAM and register state when the battery voltage sags below 2.5 V during heavy motor or relay switching.
The EPROM on PIC16LC712-04/P is one-time-programmable in the plastic /P package - it cannot be erased by UV light because the package has no quartz window. For development work, use the windowed CERDIP variant (PIC16LC712-04/W) or migrate to the Flash-based PIC16F712-I/P for in-circuit reprogrammability. Also verify the oscillator configuration bits match your chosen crystal or resonator; a mismatched mode (HS vs XT vs RC) prevents the MCU from running or causes erratic clock behavior at start-up.
The 18-pin PDIP through-hole footprint uses standard 0.100 inch (2.54 mm) pin pitch with 0.600 inch (15.24 mm) row spacing, breadboard-friendly. Keep the MCLR pull-up resistor (typically 10 kohm) close to pin 4, and add a diode from VDD to MCLR if your application requires power-on reset rise-time control. Route the OSC1/OSC2 traces short and symmetric, and place the load capacitors immediately adjacent to the crystal to minimize parasitic capacitance that would otherwise pull the oscillator off-frequency.
合规信息
RoHS, REACH, and lead-free status were not present in the verified web data for PIC16LC712-04/P; left as 'unknown' per data authenticity rules. This is a commercial-temperature-grade 8-bit MCU, not an AEC-Q100 automotive part.
