PIC12LCE519-04/SN - 8-Bit OTP MCU 1.5KB | Microchip
MPN: PIC12LCE519-04/SN ✓ Hoạt độngPIC12LCE519-04/SN Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU, program memory, data memory, and I/O peripherals on one integrated circuit. PIC microcontrollers use a RISC-based Harvard architecture and are programmed using Microchip's MPLAB X IDE and the MPLAB PM3 programmer. Within the semiconductor hierarchy, an MCU is a sub-category of digital IC, and the PIC12C family occupies the low-pin-count, ultra-small-footprint tier alongside the PIC10F, PIC12F, and PIC16C families.
Key features of the PIC12LCE519 include four oscillator selections (including the internal 4 MHz RC oscillator with programmable calibration), a 25 mA source/sink capability per I/O pin for direct LED drive, a Power-on Reset (POR), a Watchdog Timer (WDT), and a 16-byte EEPROM data area. The RISC core executes most instructions in a single 1-microsecond cycle (at 4 MHz).
Typical applications span low-cost consumer appliances, infrared remote controls, sensor signal conditioning, battery-powered timers, and automotive body electronics (non-safety). The 8-pin footprint also makes the part attractive as a one-time-programmable logic replacement in legacy systems and as a glue MCU between analog front-ends and wireless modules.
When designing with this device, ensure the VDD range stays within 2.5V-5.5V and that decoupling is placed within 3 mm of the supply pin. The OTP memory means firmware is final after programming - choose this part for mature, stable code rather than iterative prototyping.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer page, helping engineers compare the PIC12LCE519-04/SN with its 'CE' sibling and identify pin-compatible substitutes for EOL designs.
Bộ thay thế dễ dàng lắp đặt cho PIC12LCE519-04/SN — 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 PIC12LCE519-04/SN (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Timers, Watchdog Timer, Core Architecture.
PIC12CE519-04/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE518-04E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12LCE518-04I/SM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F629-I/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F508-I/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12LCE519-04/SN Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit RISC PIC12 |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 1.5 KB (1K x 12) |
| Data RAM | 41 bytes |
| Data EEPROM | 16 bytes |
| Maximum CPU Speed | 4 MHz |
| I/O Pins | 6 |
| I/O Source/Sink Current | 25 mA per pin |
| Supply Voltage (VDD) | 2.5 V to 5.5 V (L low-voltage core) |
| Oscillator Options | 4 (incl. internal 4 MHz RC, programmable calibration) |
| Hộp | 8-SOIC (SN, 0.154 inch / 3.90 mm body width) |
| Nhiệt độ hoạt động | 0 C to +70 C (commercial grade) |
| Kiểu lắp đặt | Surface Mount |
| Terminal Form | GULL WING |
| Trạng thái RoHS | Lead free / RoHS Compliant |
Cấu hình chân PIC12LCE519-04/SN
| Chân 1 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
| Chân 2 | GP5/OSC1/CLKIN — GPIO / Oscillator input / External clock input |
| Chân 3 | GP4/OSC2/CLKOUT — GPIO / Oscillator output / Clock output |
| Chân 4 | GP3/MCLR/VPP — GPIO / Master Clear (reset) / Programming voltage |
| Chân 5 | GP2/T0CKI — GPIO / Timer0 clock input |
| Chân 6 | GP1 — GPIO |
| Chân 7 | GP0 — GPIO |
| Chân 8 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC12LCE519-04/SN phù hợp cho 6 Áp dụngs: IR Remote Control Transmitter, Battery-Powered Timer and Delay Module, LED Driver and Lighting Controller, Automotive Body Electronics (non-safety), Sensor Signal Conditioning and Front-End, Cost-Optimized Logic Replacement (Glue MCU).
IR Remote Control Transmitter
The PIC12LCE519-04/SN's 8-pin SOIC footprint, 1.5 KB OTP, and 4 MHz internal RC oscillator make it a strong fit for IR remote control transmitter applications. The 25 mA I/O drive directly modulates an IR LED without an external transistor, and the 2.5 V minimum VDD allows operation from a single CR2032 coin cell for years of standby. The PIC12LCE519 typically runs a state-machine-based RC-5/RC-6 or NEC protocol encoder in 1 KB of code, leaving 512 words free for product-specific keymaps. Its commercial 0-70 C temperature range covers all consumer living-room environments, and the 8-SOIC hand-solders easily during prototyping.
Được đề xuất
Battery-Powered Timer and Delay Module
For battery-powered timer and delay modules, the PIC12LCE519-04/SN's low-voltage 2.5 V-5.5 V VDD range lets the device run directly from two AA cells that have decayed to 1.25 V each. The 4 MHz internal RC oscillator eliminates the need for an external crystal, reducing both BOM cost and standby current. The 41-byte RAM is sufficient for elapsed-time counters in days/hours/minutes, and the Watchdog Timer with its own RC source catches firmware lockups in unattended deployments. With sleep current below 1 uA on the L core, a 2xAA pack can power a year-long irrigation or HVAC service timer.
Được đề xuất
LED Driver and Lighting Controller
The 25 mA source/sink capability of each of the PIC12LCE519-04/SN's 6 I/O pins allows it to directly drive small LED arrays, status indicators, or single 7-segment displays without external transistors, making it well suited for low-cost LED lighting controllers. The 1.5 KB OTP holds color-sequence state machines, PWM tables, and fade curves for decorative lighting. The 4 MHz internal RC is stable enough for 8-bit PWM at refresh rates above 100 Hz, eliminating visible flicker. Commercial temperature grade is sufficient for indoor luminaires and accent strips; choose the I-temp variant for outdoor use.
Được đề xuất
Automotive Body Electronics (non-safety)
Although the PIC12LCE519-04/SN is commercial grade, the same die is offered in I-temp variants for non-safety automotive body electronics such as door-lock indicators, mirror controllers, and ambient lighting drivers. Its small 8-SOIC package fits behind switches and inside mirror housings where PCB area is constrained. The 2.5 V-5.5 V VDD range tolerates 12 V battery transients after a simple LDO pre-regulation. Designers should note that AEC-Q100 qualification requires the automotive-grade version; the standard part is for non-safety, non-AEC-Q100 body modules.
Được đề xuất
Sensor Signal Conditioning and Front-End
The PIC12LCE519-04/SN is a natural fit for sensor signal conditioning front-ends that require a small microcontroller to perform linearization, calibration, and PWM/SPI output of an analog sensor. The 41-byte RAM accommodates moving-average filters for temperature, pressure, or humidity sensors, and the 1.5 KB OTP stores lookup tables for non-linear sensor compensation. The 4 MHz core executes a 16-point FIR filter in under 100 microseconds, and the 6 I/O pins map to VCC, GND, sensor input enable, alarm output, and a UART/PWM data line. Pair with a MEMS sensor for a complete IoT-style sensor node.
Được đề xuất
Cost-Optimized Logic Replacement (Glue MCU)
For designs that would otherwise use discrete 7400-series logic or a small PLD, the PIC12LCE519-04/SN provides a single-chip 8-bit programmable alternative that costs less than four logic gates at volume. Its 8-SOIC footprint replaces 2-3 small SO-8 logic packages, saving PCB area, and the 6 I/O pins can implement custom encoding, debouncing, sequencing, or protocol conversion that no fixed-logic part can match. Designers can prototype in OTP, then move to the flash-based PIC12F629-I/SN for the same PCB layout when firmware iterations are required.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12LCE519-04/SN — 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 | PIC12CE519-04/SN | PIC12CE518-04E/SN | PIC12LCE518-04I/SM | PIC12F629-I/SN | PIC12F508-I/SN |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIC (SN, 3.90 mm body) | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SM) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same |
| Program Memory | 1.5 KB OTP | 1.5 KB OTP | 0.75 KB OTP | 0.75 KB OTP | 1 KB Flash | 0.75 KB Flash |
| Data RAM | 41 B | 41 B | 25 B | 25 B | 64 B | 25 B |
| Data EEPROM | 16 B | 16 B | 16 B | 16 B | 128 B | None |
| Max CPU Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz |
| VDD Range | 2.5 V to 5.5 V (L) | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| RoHS / Lead-Free | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Low-voltage 2.5 V minimum VDD core (vsPIC12CE519-04/SN)
- Larger 1.5 KB OTP vs 0.75 KB in CE518 / LCE518 siblings (vsPIC12CE518-04E/SN)
- Lower unit cost with 8-SOIC (SN) standard footprint (vsPIC12F629-I/SN)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor within 3 mm of the VDD pin (pin 1), with the ground return via a short trace to pin 8. For battery applications, add a 10 uF bulk capacitor near the supply to handle the inrush of an LED or buzzer load and prevent VDD droop below 2.5 V. The L low-voltage core will brown-out cleanly if VDD drops below the BOD threshold, and the Power-on Reset (POR) will re-initialize all registers reliably on recovery.
The 8-SOIC (SN, 0.154 inch / 3.90 mm body) footprint accepts 0.65 mm pitch SO-8 hand-solder pads. Route the MCLR/GP3 pin (pin 4) away from switching traces to avoid spurious resets; if not used, tie MCLR to VDD through a 10 kohm resistor. The OSC1/OSC2 pins (pins 2 and 3) can be left floating when using the internal 4 MHz RC oscillator, but keep-out copper pour within 2 mm of these pads to reduce stray capacitance that could detune the internal oscillator calibration.
Do not assume OTP firmware is erasable - the 'C' in PIC12C means EPROM, and the LCE519 is OTP. Plan your code revision carefully or use a flash-based PIC12F-series for prototyping. Avoid exceeding the 25 mA per-pin source/sink limit or the 100 mA total port budget; the absolute maximum is not 100% derated for hot operation. For in-circuit programming, MPLAB PM3 or PICkit is required; the device has no ICSP-disable fuse, so leave the MCLR/PGM pin accessible for production programming.
Thông tin tuân thủ
RoHS compliant and lead-free per distributor listings. Commercial temperature grade (0 C to +70 C) - not AEC-Q100 qualified; choose the I-temp / automotive-graded variant for AEC-Q100 applications. REACH, halogen-free, and conflict-minerals status not stated in the provided data.
