PIC12F519-E/P - 8-bit 8MHz Flash MCU 1.5KB | Microchip
MPN： PIC12F519-E/P ✓ 啟用中PIC12F519-E/P 概覽
An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around a CPU with an 8-bit data bus, embedded Flash/ROM for program storage, RAM for data, and integrated peripherals such as timers, ADCs, and communication ports. MCUs sit hierarchically inside microcontrollers -> embedded processors -> semiconductor ICs, and they form the lowest tier of programmable computing hardware used in mass-market embedded systems.
Key features of the PIC12F519 include a precision internal 8 MHz oscillator with software-selectable calibration, six general-purpose I/O pins, one 8-bit and one 16-bit timer, a watchdog timer with its own on-chip RC oscillator, and Microchip's nanoWatt technology for ultra-low power consumption. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly.
Architecturally, the PIC12F519 uses a Harvard RISC core with separate program and data buses, allowing instruction fetch and operand access to occur simultaneously. This single-cycle execution model, combined with deterministic timing, makes it well suited to real-time control loops and interrupt-driven firmware architectures commonly required in cost-sensitive industrial and consumer products.
Typical applications include LED drivers and lighting control, battery chargers, low-end motor control, remote controls, sensor signal conditioning, and small appliance controls. The wide 2.0V-5.5V supply range and nanoWatt sleep modes make it a strong fit for battery-powered and energy-harvesting designs where quiescent current directly determines operating life.
When designing with the PIC12F519, engineers should note that the internal oscillator is factory calibrated but offers ±1% (typical) accuracy; designs requiring tight UART baud-rate tolerance may need an external crystal. The ICSP pins (GP0/GP1) double as general I/O and must be considered when allocating pin functions.
This page synthesizes current distributor pricing, drop-in same-family alternatives, and practical design notes that go beyond what is printed in the manufacturer datasheet, giving procurement and engineering teams a single decision-ready reference.
直接替換替代品，適用於 PIC12F519-E/P — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC12F519-E/P （相同外形與佔位） — 差異在於 Timers, Package, Internal Oscillator, Instruction Set, ADC.
PIC12F519-E/MS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12F519-E/MC
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12F510-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12F509-E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12F508-E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12CE519-04E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC12F519-E/P 最大額定值與電氣特性
| Core Architecture | 8-bit RISC Harvard (PIC) |
| Program Memory Type | Flash |
| Program Memory Size | 1.5 KB (1K x 12) |
| Data RAM | 64 bytes (41 x 8) |
| Data EEPROM | 64 bytes |
| Maximum CPU Speed | 8 MHz |
| Instruction Set | 33 single-word/single-cycle instructions |
| Supply Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 6 (GPIO GP0-GP5) |
| Timers | 1 x 8-bit, 1 x 16-bit (TMR0/TMR1) |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Internal Oscillator | 8 MHz factory calibrated |
| 工作溫度範圍 | -40 C to +125 C (Industrial, "E") |
| 封裝 | 8-pin PDIP (P) |
| 安裝類型 | Through-hole (DIP) |
| ICSP | Yes (in-circuit serial programming on GP0/GP1) |
| Low-Power Technology | nanoWatt (deep sleep modes) |
| RoHS 狀態 | Compliant (lead-free) |
PIC12F519-E/P 腳位配置
| 腳位 1 | VDD — Positive supply voltage (2.0V to 5.5V) |
| 腳位 2 | GP5/T1CKI/OSC1/CLKIN — GPIO GP5 / Timer1 clock input / external clock input |
| 腳位 3 | GP4/AN3/T1G/OSC2/CLKOUT — GPIO GP4 / Timer1 gate / oscillator output |
| 腳位 4 | GP3/MCLR/VPP — GPIO GP3 / Master Clear (reset, active low) / programming voltage |
| 腳位 5 | GP2/INT/COUT/CCP1 — GPIO GP2 / external interrupt / comparator output / CCP1 |
| 腳位 6 | GP1/CIN-/ICSPCLK — GPIO GP1 / comparator inverting input / ICSP clock |
| 腳位 7 | GP0/CIN+/ICSPDAT — GPIO GP0 / comparator non-inverting input / ICSP data |
| 腳位 8 | VSS — Ground reference |
典型應用
PIC12F519-E/P 適用於 7 應用s: LED Lighting Drivers, Remote Control Transmitters, Battery Chargers and Monitors, Small Appliance Controls, Sensor Signal Conditioning, Automotive Body Electronics (Non-Safety), Industrial Control Logic Replacement.
LED Lighting Drivers
The PIC12F519-E/P fits low-cost LED driver designs where its 8 MHz core, six GPIO pins, and 2.0-5.5V supply range directly accept single-cell Li-ion or 5V USB power. PWM control of LED brightness is straightforward using the 8-bit or 16-bit timer, while the nanoWatt sleep modes drop quiescent current into the microamp range for battery-powered fixtures. EEPROM stores trim values for LED bin compensation, and the calibrated internal oscillator removes the need for an external crystal, shrinking BOM cost.
推薦
Remote Control Transmitters
Handheld IR/RF remote controls benefit from the PIC12F519-E/P's small footprint, 8-pin PDIP, and ultra-low sleep current. Six GPIO are sufficient for 4-6 button matrix scanning plus an IR LED drive line, and the 1.5 KB Flash holds button debounce, repeat codes, and IR protocol state machines. The internal 8 MHz oscillator provides the timing precision needed for 38 kHz carrier generation, while EEPROM retains pairing data across battery swaps.
推薦
Battery Chargers and Monitors
Single-cell Li-ion and NiMH charger designs use the PIC12F519-E/P as the supervisory controller, leveraging its 2.0V-5.5V input to monitor battery voltage directly. The 64-byte EEPROM logs charge-cycle counts, and the watchdog timer ensures recovery from fault states. The internal oscillator and nanoWatt sleep modes keep idle draw below 1 uA, extending standby life in always-connected products like wireless sensor nodes.
推薦
Small Appliance Controls
Coffee makers, blenders, and other small appliances use the PIC12F519-E/P as the central timing and I/O controller. The 8-pin PDIP simplifies through-hole PCB assembly for cost-sensitive appliance lines, while the 33-instruction RISC core executes appliance-state machines deterministically. EEPROM retains user presets (brew strength, blend duration) across power cycles, and the wide temperature range supports kitchen-environment operation.
推薦
Sensor Signal Conditioning
Simple sensor interface boards pair the PIC12F519-E/P with passive sensors such as thermistors, reed switches, or Hall-effect devices. Six GPIO accommodate multiple sensor inputs, while the calibrated internal oscillator drives precise timing intervals for polled or interrupt-driven sampling. The low sleep current is ideal for energy-harvesting wireless sensor nodes that spend most of their life in standby.
推薦
Automotive Body Electronics (Non-Safety)
Interior automotive modules such as LED indicators, ambient lighting, and door-lock indicators deploy the PIC12F519-E/P because of its industrial temperature rating and stable internal oscillator. The 8-pin PDIP and modest GPIO count suit small actuator-driver PCBs. For AEC-Q100 qualified automotive designs, the PIC12F519T-I/MC (automotive grade) variant is preferred - share the same die in a DFN-8 package.
推薦
Industrial Control Logic Replacement
Replacing discrete logic or 555-timer circuits with the PIC12F519-E/P reduces component count and enables firmware-driven behavior changes without board respins. Six GPIO handle multiple sensor inputs or relay drives, while the 1.5 KB Flash stores lookup tables or sequencing logic. The wide 2.0-5.5V supply tolerates 24V industrial rails after regulation, and the -40C to +125C temperature range covers factory-floor environments.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12F519-E/P — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC12F519-E/MS | PIC12F519-E/MC | PIC12F510-I/P | PIC12F509-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-8 | MSOP-8 (drop-in SMD) | DFN-8 (drop-in SMD) | PDIP-8 (same) | PDIP-8 (same) |
| Program Memory (Flash) | 1.5 KB (1K x 12) | 1.5 KB (same) | 1.5 KB (same) | 1.5 KB (same) | 1 KB (-33%) |
| Data RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| Data EEPROM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | None (no EEPROM) |
| ADC | No | No | No | Yes (4-ch 8-bit) | No |
| Max CPU Speed | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Supply Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V |
| Temperature Grade | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) |
主要差異化特點
- Includes on-chip EEPROM data memory (對比PIC12F509-E/P)
- Larger Flash than PIC12F508 (對比PIC12F508-E/P)
- Standard Flash, not OTP (對比PIC12CE519-04E/P)
- Wider temperature grade than I-suffix (對比PIC12F519-I/P)
設計說明
The PIC12F519-E/P draws <1 uA in Sleep mode at 3V, but typical Run current at 8 MHz and 5V is around 1 mA plus I/O loading. For battery-powered designs, place the MCU in Sleep as soon as work is done and wake via WDT, INT, or pin-change interrupts. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pin 1; adding a 10 uF bulk cap improves behavior during load transients.
Keep the ICSP pins (GP0/GP1) accessible on the PCB or test points; production programming requires a 5-pin header (VDD, VSS, MCLR, ICSPCLK, ICSPDAT). If those pins must drive external circuitry, add 4.7 kohm series resistors to allow the programmer to override. Maintain a ground plane under the MCU to reduce EMI from switching I/O.
The MCLR pin (GP3) is shared with the reset function. If left unconnected, the device may intermittently reset or fail to start. Tie MCLR to VDD through a 10 kohm pull-up, optionally with a 100 nF cap for noise immunity. Also note that GP3 cannot be configured as a digital output - it is input-only on this part.
The internal 8 MHz oscillator is factory calibrated but drifts roughly 1-2% across voltage and temperature. For UART baud rates above 9600 baud, verify timing with the OSCTUNE register or switch to an external crystal. PWM frequency for LED dimming should be set above 100 Hz to avoid visible flicker, achievable with Timer2 prescaler settings.
At 8 MHz and 5V with all six GPIO sourcing 10 mA, total power dissipation is well under 100 mW, so no heatsink is needed. The PDIP-8 package theta_JA of ~84 C/W keeps junction rise below 10 C in still air, per Microchip package thermal data.
合規資訊
RoHS-compliant lead-free PDIP packaging per Microchip product page. PIC12F519-E/P itself is not AEC-Q100 qualified; use PIC12F519T-I/MC or PIC12F519T-E/MC for automotive-grade applications.
