PIC12CE518T-04E/SN - 8-Bit 4MHz OTP MCU 768B | Microchip
MPN: PIC12CE518T-04E/SN ✓ Hoạt độngPIC12CE518T-04E/SN Tóm tắt
An 8-bit PIC microcontroller is a low-pin-count CMOS RISC processor optimized for cost-sensitive embedded control. The PIC12C5xx family is one of the earliest PIC baseline architectures, providing 12-bit-wide instructions that deliver roughly 2:1 code compression versus 8-bit CISC microcontrollers in the same class. The PIC12CE5XX family adds integrated EEPROM data memory, allowing non-volatile parameter storage without an external serial EEPROM, which reduces board area and BOM cost. The PIC sits in the broader taxonomy: microcontroller (MCU) → 8-bit MCU → PIC baseline → PIC12C5XX family.
Key features of the PIC12CE518 include six general-purpose I/O pins, a power-on reset (POR) and watchdog timer (WDT), an internal 4 MHz RC oscillator, and an operating temperature range of -40 °C to +125 °C. Its 8-bit core, 12-bit instruction word, and 2:1 code compression provide 8-bit MCU performance at a price point suited to high-volume consumer and industrial controls.
Architecturally, the device uses a Harvard-style bus with separate program and data paths, an 8-level hardware stack, and 7 special-function registers. The integrated 16-byte EEPROM supports in-application read/write, enabling user-configurable settings, calibration constants, or serial-number storage without external components. The device is specified for -40 °C to +125 °C operation, making it suitable for industrial environments.
Typical applications include consumer appliance controls, sensor interfaces, low-end remote controls, LED drivers, and battery-powered accessories. Designers favor this part where its small 8-pin SOIC footprint, integrated EEPROM, and 1 µs instruction cycle deliver deterministic control at minimal cost.
Design tip: use a 0.1 µF decoupling capacitor within 5 mm of the VDD pin and ensure the MCLR pin is tied high through a 10 kΩ resistor to guarantee a clean power-on reset; the integrated POR handles the cold-start sequence but the external RC is still required for stable operation.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing is quoted as of 2026-09-15.
Bộ thay thế dễ dàng lắp đặt cho PIC12CE518T-04E/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 PIC12CE518T-04E/SN (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Program Memory Size, Data EEPROM, Instruction Cycle Time.
PIC12CE518-04E/SN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12CE519-04E/SN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC12C509A-04E/SM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12C508A-04E/SM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12F1501-I/SN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12CE518T-04E/SN Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-bit |
| Core Architecture | RISC |
| Instruction Set | 33 single-word instructions |
| Instruction Cycle Time | 1 µs at 4 MHz |
| Clock Speed | 4 MHz |
| Program Memory Type | OTP |
| Program Memory Size | 768 B (512 × 12 words) |
| RAM Size | 25 B |
| EEPROM Data Memory | 16 B |
| I/O Pins | 6 |
| Điện áp cung cấp | 2.5 V to 5.5 V |
| Nhiệt độ hoạt động | -40 °C to +125 °C |
| Hộp | 8-SOIC (3.90 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Oscillator Type | Internal RC (4 MHz) |
| Peripherals | POR, WDT |
| Connectivity | None (standalone MCU) |
| Data Converters | None |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC12CE518T-04E/SN
| Chân 1 | GP3/MCLR/VPP — General-purpose I/O (input only) / Master Clear reset (active low) / Programming voltage input |
| Chân 2 | GP0 — Bidirectional digital I/O; can be configured for wake-on-change |
| Chân 3 | GP1 — Bidirectional digital I/O |
| Chân 4 | GP2 — Bidirectional digital I/O; T0CKI clock input option |
| Chân 5 | VSS — Ground reference (0 V) |
| Chân 6 | GP4/OSC2 — Bidirectional digital I/O / oscillator output (crystal mode) |
| Chân 7 | GP5/OSC1/CLKIN — Bidirectional digital I/O / oscillator input / external clock input |
| Chân 8 | VDD — Positive supply voltage, 2.5 V to 5.5 V |
Ứng dụng tiêu biểu
PIC12CE518T-04E/SN phù hợp cho 6 Áp dụngs: Consumer Appliance Control, Battery-Powered Remote Controls, LED Lighting Controllers, Industrial Sensor Interfaces, Automotive Accessory Modules, Wearable / Personal Electronics.
Consumer Appliance Control
The PIC12CE518T-04E/SN fits consumer appliance control boards (small kitchen appliances, water heaters, fans) where its 8-pin SOIC footprint, 2.5 V–5.5 V supply, and 16-byte integrated EEPROM store user-set parameters and calibration constants without external serial memory. The 4 MHz instruction rate gives a 1 µs cycle time, sufficient to bit-bang UART, scan keypads, and drive triac outputs deterministically. The -40 °C to +125 °C operating range tolerates appliance under-cabinet thermal environments. The PIC baseline 33-instruction set enables compact, hand-coded assembler or C code, reducing development time for high-volume consumer SKUs.
Được đề xuất
Battery-Powered Remote Controls
The PIC12CE518T-04E/SN is well-suited to low-cost IR/RF remote controls where the 2.5 V–5.5 V supply accepts 2×AA or coin-cell battery stacks, and the integrated EEPROM retains pairing codes and device addresses without backup battery drain. Its 1 µs instruction cycle can bit-bang standard 38 kHz IR carrier modulation with predictable timing using the internal 4 MHz RC oscillator. With 6 GPIO, the device can directly drive IR LEDs, scan key matrices up to 3×3, and wake on interrupt. The 8-pin SOIC keeps the BOM to a single IC plus a couple of passives, ideal for sub-$1 remote designs.
Được đề xuất
LED Lighting Controllers
The PIC12CE518T-04E/SN drives decorative LED lighting, accent strips, and small RGB fixtures using its 6 GPIO to sink up to 25 mA per pin directly into LED cathodes, eliminating driver transistors. The 4 MHz instruction rate and 1 µs cycle time allow software PWM dimming at 8-bit resolution with refresh rates above 100 Hz, avoiding visible flicker. The integrated 16-byte EEPROM stores user-selected color/brightness presets. The 2.5 V–5.5 V supply accepts 3.3 V USB power or 5 V from a wall adapter, simplifying power tree design for low-cost lighting modules.
Được đề xuất
Industrial Sensor Interfaces
The PIC12CE518T-04E/SN interfaces discrete industrial sensors (limit switches, proximity detectors, Hall sensors) to higher-level controllers, where the -40 °C to +125 °C operating range tolerates factory-floor thermal extremes. The 6 GPIO accept 5 V inputs via digital Schmitt triggers, and the PIC12CE518 bit-bangs protocols like Modbus RTU over UART at 9600–19200 baud with deterministic timing from the 4 MHz oscillator. The integrated 16-byte EEPROM stores sensor calibration values and unit IDs, simplifying field commissioning. Its 8-SOIC footprint is footprint-compatible with newer PIC12F-series parts, enabling easy migration when ADC functionality is required.
Được đề xuất
Automotive Accessory Modules
The PIC12CE518T-04E/SN handles simple automotive accessories (interior lighting, switch panels, mirror controllers, warning beepers) where its 2.5 V–5.5 V supply accepts post-regulator 5 V rails, and the 6 GPIO can drive small relays and read switched inputs. The integrated EEPROM retains user settings and fault counters across ignition cycles. The -40 °C to +125 °C operating range covers automotive cabin environments, though under-hood modules require PIC AEC-Q100 qualified parts. For body-electronics tasks that need ADC or PWM, the pin-compatible PIC12F1501 is the recommended upgrade within the same 8-SOIC footprint.
Được đề xuất
Wearable / Personal Electronics
The PIC12CE518T-04E/SN fits ultra-low-cost wearable accessories (LED badges, novelty toys, fitness clip-on sensors) where its 8-pin SOIC and 2.5 V–5.5 V supply integrate easily with CR2032 coin cells or single-cell Li-ion batteries. The 33-instruction baseline core lets engineers write tight C code that runs at 4 MHz while drawing modest current; for deeper power optimization, the PIC10F20X family with nanoWatt sleep extends battery life. The integrated 16-byte EEPROM stores step-count or user-preference data non-volatilely, and the 1 µs cycle time handles simple state machines for LED chasers and buzzer patterns.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12CE518T-04E/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 | PIC12CE518-04E/SN | PIC12CE519-04E/SN | PIC12C509A-04E/SM | PIC12C508A-04E/SM | PIC12F1501-I/SN |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (3.90 mm body) | 8-SOIC (3.90 mm body) - same | 8-SOIC (3.90 mm body) - same | 8-SOIC (5.28 mm body) - same pinout | 8-SOIC (5.28 mm body) - same pinout | 8-SOIC (3.90 mm body) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Architecture | PIC baseline 8-bit, 12-bit instructions, 4 MHz | PIC baseline 8-bit, 12-bit instructions, 4 MHz - same | PIC baseline 8-bit, 12-bit instructions, 4 MHz - same | PIC baseline 8-bit, 12-bit instructions, 4 MHz - same | PIC baseline 8-bit, 12-bit instructions, 4 MHz - same | PIC midrange 8-bit, 14-bit instructions, 16 MHz |
| Program Memory | 768 B OTP (512 × 12) | 768 B OTP (512 × 12) - same | 1024 B OTP (1024 × 12), +33% | 1024 B OTP (1024 × 12), +33% | 512 B OTP (512 × 12), -33% | 1.75 KB Flash, +133% |
| RAM Size | 25 B | 25 B - same | 41 B, +64% | 41 B, +64% | 25 B - same | 64 B, +156% |
| Integrated EEPROM | 16 B | 16 B - same | 16 B - same | None (no 'E' suffix) | None (no 'E' suffix) | None (no 'E' suffix) |
| Supply Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 1.8 V to 5.5 V |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C - same | -40 °C to +125 °C - same | -40 °C to +125 °C - same | -40 °C to +125 °C - same | -40 °C to +85 °C (industrial) |
| ADC / PWM | None | None - same | None - same | None - same | None - same | 10-bit ADC, 4× PWM, comparator |
Bảo phân biệt quan trọng
- Integrated 16-byte EEPROM on-chip (vsPIC12C509A-04E/SM)
- Pin-compatible upgrade path to PIC12CE519 (vsPIC12F1501-I/SN)
- Extended -40 °C to +125 °C operating range (vsPIC12F1501-I/SN)
Ghi chú thiết kế
Place a 0.1 µF decoupling capacitor within 5 mm of the VDD pin (pin 8) and connect the VSS pin (pin 5) to a low-impedance ground plane. The internal 4 MHz RC oscillator is sensitive to VDD ripple, so a noisy supply without adequate bulk decoupling may cause oscillator frequency drift. For battery-powered designs, add a 10 µF tantalum or ceramic bulk capacitor across VDD-VSS to suppress load-transient dips that could trigger the brown-out reset.
Route the MCLR pin (pin 1) high through a 10 kΩ pull-up resistor to VDD, and add a 100 nF capacitor from MCLR to VSS to filter noise glitches that can cause unintended resets. The MCLR pin is shared with GP3 and is input-only, so it cannot be used as a general output. In noisy industrial environments, consider a dedicated external voltage supervisor to improve reset reliability beyond the internal POR.
Do not use the PIC12CE518T-04E/SN if your firmware needs more than 768 bytes of OTP - migrate to the pin-compatible PIC12CE519-04E/SN (1024 bytes) before reaching the code-size limit. Be aware that OTP memory cannot be erased, so debug builds should use the PIC12F1501 (1.75 KB Flash) for in-circuit reprogramming. The 'E' suffix requires 2.5 V minimum supply, so 2.0 V lithium-battery designs must use the non-'E' -04 variant instead.
The 6 GPIO pins can source or sink 25 mA per pin with a total package limit of 125 mA, but driving high-current loads directly from the MCU reduces reliability and increases EMI. Use external MOSFET drivers or transistors for loads above 25 mA, and add series resistors (100-470 Ω) to GPIO outputs to dampen transmission-line ringing when traces exceed 50 mm. The Schmitt-trigger inputs tolerate slow edges, but keeping rise times below 1 µs improves noise immunity.
Thông tin tuân thủ
RoHS and lead-free compliance per Microchip product page. The part is not AEC-Q100 qualified and is not recommended for automotive under-hood applications. The 8-SOIC package is MSL-1 rated (no moisture pre-bake required).
