PIC12LCE519T-04/SM - 8-Bit PIC MCU, 1.5KB OTP, 4MHz, 8-SOIJ
MPN: PIC12LCE519T-04/SM ✓ Hoạt độngPIC12LCE519T-04/SM Tóm tắt
What is a microcontroller? An MCU (microcontroller unit) is a single-chip computer containing a CPU core, program memory (ROM/Flash/OTP), working RAM, and integrated peripherals such as timers, ADC, and communication interfaces. The PIC12 family sits at the entry level of Microchip's 8-bit PIC portfolio, optimized for low pin count, low cost, and deterministic real-time control in space-constrained designs. The PIC architecture (modified Harvard RISC) traces its lineage to General Instrument's 1970s design and remains widely deployed in appliances, automotive sub-systems, and industrial sensors.
Key specifications include 1.5KB OTP program memory, 41x8 RAM, 16x8 EEPROM, six I/O, 4 MHz maximum clock, and a brown-out detect / power-on reset supervisor. The device operates across 2.5V to 5.5V (LCE low-voltage variant) and is specified for the commercial 0C to +70C temperature range (the -04 speed grade denotes 4 MHz). Peripherals include one 8-bit timer/counter with prescaler, watchdog timer, and an internal oscillator calibration.
The PIC12LCE519T-04/SM uses a 12-bit instruction word PIC core with a 2-stage pipeline, executing most instructions in a single instruction cycle. OTP (one-time programmable) program memory makes this part suited for production runs where code stability is locked at programming time. The 8-SOIJ package features a J-leaded outline for improved board-level reliability versus gull-wing SOIC.
Typical applications include small appliance controllers, LED drivers, remote-control transmitters, sensor signal conditioning, and battery-powered consumer devices. Designers choose this part for cost-sensitive embedded tasks requiring 6 or fewer I/O lines.
When designing with the PIC12LCE519T-04/SM, ensure the ICSP (In-Circuit Serial Programming) pins are accessible for production programming. The OTP variant cannot be reprogrammed, so production firmware must be verified before programming. For in-circuit reprogrammability, choose a Flash-based PIC12F variant instead.
This page synthesizes distributor pricing, drop-in alternatives from the Microchip PIC12 family, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC12LCE519T-04/SM — 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 PIC12LCE519T-04/SM (cùng hình factor và footprint) — khác nhau ở Instruction Set, Operating Temperature, Package.
PIC12LCE519-04/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12LCE519T-04I/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12LCE519T-04E/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12CE519T-04/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12CE519-04I/SM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE518-04/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12LCE519T-04/SM Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-Bit |
| Core Architecture | RISC (Modified Harvard) |
| Instruction Set | 33 single-word instructions |
| Program Memory Size | 1.5 KB (1K x 12) |
| Program Memory Type | OTP |
| RAM Size | 41 x 8 (41 bytes) |
| EEPROM Size | 16 x 8 (16 bytes) |
| Tần số xung maksimum | 4 MHz |
| Instruction Cycle Time | 1 microsecond at 4 MHz |
| Number of I/O Pins | 5 GPIO + 1 input-only = 6 I/O |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| Peripherals | POR, WDT, 8-bit Timer |
| Hộp | 8-SOIJ (5.30 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Speed Grade Suffix | -04 = 4 MHz |
Cấu hình chân PIC12LCE519T-04/SM
| Chân 1 | GP5/OSC1/CLKIN — GPIO port bit 5 / oscillator input / external clock input |
| Chân 2 | GP4/OSC2/CLKOUT — GPIO port bit 4 / oscillator output / clock output |
| Chân 3 | GP3/MCLR/VPP — GPIO port bit 3 / Master Clear reset (active low) / programming voltage |
| Chân 4 | GP2/T0CKI/AN2 — GPIO port bit 2 / Timer0 clock input / analog input 2 |
| Chân 5 | GP1/AN1/CIN- — GPIO port bit 1 / analog input 1 / comparator inverting input |
| Chân 6 | GP0/AN0/CIN+ — GPIO port bit 0 / analog input 0 / comparator non-inverting input |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD — Positive supply voltage |
Ứng dụng tiêu biểu
PIC12LCE519T-04/SM phù hợp cho 6 Áp dụngs: Small Appliance Control, Remote Control Transmitter, LED Lighting Driver Controller, Battery-Powered Sensor Interface, Automotive Accessory Controller, Toy and Hobby Electronics.
Small Appliance Control
The PIC12LCE519T-04/SM fits small appliance controllers (coffee makers, toasters, blenders) where its 1.5KB OTP program memory holds a fixed control sequence, six I/O drive buttons, relays, and LED indicators, while 4 MHz operation keeps instruction latency low. The internal oscillator eliminates external crystal cost and the 8-SOIJ package withstands typical kitchen temperature cycling. The 16-byte EEPROM retains user presets across power cycles, and the low-voltage LCE variant supports 2xAA battery operation.
Được đề xuất
Remote Control Transmitter
The PIC12LCE519T-04/SM works as the encoder in IR/RF remote controls where it reads a 4x4 button matrix on its six I/O pins, generates a Manchester-coded transmission, and enters sleep mode between button presses for battery life. At 4 MHz the device generates precise carrier frequencies (e.g., 38 kHz for IR) with software PWM. The 1.5KB OTP stores the encoding protocol table, and the 41-byte RAM is sufficient for key debounce and buffer state.
Được đề xuất
LED Lighting Driver Controller
The PIC12LCE519T-04/SM serves as the controller in decorative and architectural LED drivers, where it executes PWM dimming sequences via its 8-bit timer, monitors temperature through a discrete NTC divider, and handles button/IR input. Its 4 MHz clock supports software PWM up to 16 kHz to avoid audible flicker, and the OTP memory locks the lighting curve at production. The 8-SOIJ package handles the moderate thermal dissipation of a logic-only MCU role.
Được đề xuất
Battery-Powered Sensor Interface
The PIC12LCE519T-04/SM is suited to wireless sensor nodes and battery-powered transducers where it digitizes sensor inputs through an external ADC, manages wake-up cycles via the watchdog timer, and transmits results on a UART or one-wire interface. The LCE low-voltage variant extends battery life down to 2.5V, while the 16-byte EEPROM stores calibration constants. Six I/O pins handle sensor, enable, TX, and LED status functions.
Được đề xuất
Automotive Accessory Controller
The PIC12LCE519T-04/SM is used in body-electronics accessories such as seat heaters, mirror adjusters, and aftermarket lighting controllers, where it reads position switches and drives relays/MOSFETs via its six I/O pins. The extended-temperature variant -04E/SM supports -40C to +125C automotive environments, while the OTP memory locks the production firmware. 1 microsecond instruction cycle gives deterministic response to button debounce and timer interrupts.
Được đề xuất
Toy and Hobby Electronics
The PIC12LCE519T-04/SM serves as the brain in cost-sensitive toys, hobby kits, and educational microcontroller boards where absolute minimum BOM cost is the primary design constraint. At under $1.10 per unit at 1,000-piece reels, the part provides full 8-bit processing, six I/O for sensors/motors/LEDs, and 1.5KB OTP for behavior programming. The internal 4 MHz RC oscillator eliminates external timing components, and the SOIJ package supports standard pick-and-place.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12LCE519T-04/SM — 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 | PIC12LCE519-04/SM | PIC12LCE519T-04I/SM | PIC12LCE519T-04E/SM | PIC12CE519T-04/SM | PIC12CE518-04/SM |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-SOIJ (5.30mm) | 8-SOIJ - same | 8-SOIJ - same | 8-SOIJ - same | 8-SOIJ - same | 8-SOIJ - same |
| Program Memory | 1.5 KB OTP | 1.5 KB OTP | 1.5 KB OTP | 1.5 KB OTP | 1.5 KB OTP | 1.5 KB OTP |
| RAM | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 41 bytes |
| EEPROM | 16 bytes | 16 bytes | 16 bytes | 16 bytes | 16 bytes | 0 bytes (not present) |
| Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Temperature Grade | Commercial 0C to +70C | Commercial | Industrial -40C to +85C | Extended -40C to +125C | Commercial | Commercial |
Bảo phân biệt quan trọng
- Includes 16-byte on-chip EEPROM data memory (vsPIC12CE518-04/SM)
- Low-voltage (LCE) operation down to 2.5V (vsPIC12CE519T-04/SM)
- Tape-and-reel packaging for high-volume SMT (vsPIC12LCE519-04/SM (tube))
Ghi chú thiết kế
The PIC12LCE519T-04/SM draws approximately 2 mA active current at 4 MHz and 5V, dropping to single-digit microamps in sleep mode. Place a 100 nF decoupling capacitor as close as possible between VDD (pin 8) and VSS (pin 7), plus a bulk 10 uF electrolytic or tantalum capacitor on the same supply rail. For battery applications, the LCE low-voltage variant extends operation down to 2.5V; add a series ferrite bead if the supply is shared with a noisy switching regulator.
When using an external crystal or resonator, place it within 5 mm of the OSC1/OSC2 pins (GP5/GP4) and surround it with a ground guard ring to reduce radiated EMI. If the internal 4 MHz RC oscillator is used instead, leave GP5/GP4 as digital I/O and connect them normally. Trace MCLR (pin 3) directly to VDD through a 10 kohm pull-up; do not leave it floating, or random resets will occur during power-up transients.
The OTP variant cannot be reprogrammed or erased; verify firmware thoroughly using a Flash-based PIC12F emulation part during development before committing to OTP production programming. ICSP programming requires the MCLR/VPP pin to be brought to ~13V; ensure any external circuitry on GP3 does not load this pin below 5 kohm or programming will fail. Configuration word (oscillator, watchdog, code protect) must be set during programming - once locked, OTP cannot change it.
The 8-SOIJ package dissipates negligible power in this CMOS design (typical 2 mA active at 5V = 10 mW). Junction temperature rise is well below 1C even with the modest theta_JA of the SOIJ package, so no thermal management is required. The industrial-grade PIC12LCE519T-04I/SM and extended-grade PIC12LCE519T-04E/SM variants extend the operating envelope to -40C/+85C and -40C/+125C respectively for harsh-environment deployment.
Thông tin tuân thủ
RoHS and REACH compliance status not explicitly stated in verified web data; using 'unknown' per data authenticity rules. Not AEC-Q100 qualified - choose the PIC12LCE519T-04E/SM for extended temperature, but it is not formally automotive-qualified either.
