PIC12F1501-E/MS - 8-bit MCU, 1.75KB Flash, 20MHz, 8-MSOP | Microchip
MPN： PIC12F1501-E/MS ✓ 啟用中PIC12F1501-E/MS 概覽
A PIC microcontroller (Programmable Interface Controller) is a family of 8-bit RISC-based microcontrollers built on Harvard architecture, widely used in embedded control applications ranging from simple blinking-LED designs to industrial sensor interfaces and battery-powered IoT endpoints. Within the broader taxonomy, the PIC12F1501 sits at the entry-level: PIC12 family -> 8-bit PIC -> microcontroller (MCU) -> embedded processor -> semiconductor device. It is part of the enhanced mid-range PIC12F family offering nanoWatt XLP technology for low-power operation.
Key features of the PIC12F1501-E/MS include 6 I/O pins, brown-out detect and power-on reset, PWM module, watchdog timer, and a wide 2.5V to 5.5V operating voltage range. The device includes a 10-bit ADC capable of up to 4 input channels and a CLC peripheral that allows hardware logic customization outside the CPU core, enabling reduced BOM cost in timer-driven designs.
Architecturally, the PIC12F1501 uses an enhanced mid-range 8-bit RISC core with 49 instructions and a 200 ns instruction execution time at 20 MHz, providing deterministic interrupt response. The internal 16 MHz high-precision oscillator (calibrated to +/-1%) eliminates the need for an external crystal in most designs. NanoWatt XLP sleep currents extend battery life in duty-cycled sensor applications.
Typical applications for the PIC12F1501-E/MS include low-cost LED drivers, household appliance controls, battery chargers, sensor signal conditioning, and small consumer gadgets. Designers value this MCU for compact PCB layouts where only a few I/O are needed but accurate ADC and PWM functionality are essential.
When designing with this MCU, ensure decoupling capacitors are placed close to VDD (pin 1) and VSS (pin 8), and use the internal oscillator unless timing accuracy requires an external crystal. The ICSP programming interface pins (ICSPCLK/ICSPDAT) should be brought out to a header for in-circuit programming and debugging.
This page synthesizes distributor pricing, drop-in alternatives sourced from the Microchip same-family lineup, and practical design notes not found in the manufacturer datasheet to accelerate your component selection and PCB layout.
直接替換替代品，適用於 PIC12F1501-E/MS — 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： PIC12F1501-E/MS （相同外形與佔位） — 差異在於 Package, ADC, RoHS Status, Instruction Set, Peripherals.
PIC12F1501-I/MS
✅ 直接替換聯絡詢價
查看資料表 →PIC12F1822-E/MS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12F1840-E/MS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12F1501-E/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12F1501-E/MS 最大額定值與電氣特性
| Core Processor | PIC (8-bit RISC) |
| Core Size | 8-Bit |
| Maximum Clock Speed | 20 MHz |
| Program Memory Size | 1.75 KB (1K x 14) Flash |
| RAM Size | 64 bytes |
| Number of I/O Pins | 6 |
| 封裝 | 8-MSOP (3 x 3 mm) |
| 安裝類型 | Surface Mount |
| Supply Voltage Range | 2.5 V to 5.5 V |
| 工作溫度範圍 | -40 C to +125 C |
| ADC | 10-bit, up to 4 channels |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT, CLC, NCO |
| RoHS 狀態 | Compliant (lead-free MSOP) |
| Instruction Set | 49 instructions, enhanced mid-range core |
| Instruction Execution Time | 200 ns at 20 MHz |
| Internal Oscillator | 16 MHz high-precision (+/-1%) |
PIC12F1501-E/MS 腳位配置
| 腳位 1 | VDD — Positive power supply input (2.5V to 5.5V) |
| 腳位 2 | RA5 — Bidirectional I/O pin; analog input channel AN3 |
| 腳位 3 | RA4 — Bidirectional I/O pin; analog input channel AN2 |
| 腳位 4 | RA3/MCLR — Input only; Master Clear (reset) with internal weak pull-up |
| 腳位 5 | RA2 — Bidirectional I/O pin; analog input channel AN2 |
| 腳位 6 | RA1/ICSPCLK — Bidirectional I/O pin; in-circuit serial programming clock |
| 腳位 7 | RA0/ICSPDAT — Bidirectional I/O pin; in-circuit serial programming data |
| 腳位 8 | VSS — Ground reference |
典型應用
PIC12F1501-E/MS 適用於 6 應用s: Battery-Powered IoT Sensor Node, PWM LED Driver / Dimmer, Small Consumer Appliance Control, Capacitive Touch Button Interface, Automotive Aftermarket Sensor Module, Industrial Sensor Signal Conditioner.
Battery-Powered IoT Sensor Node
The PIC12F1501-E/MS is a strong fit for IoT sensor nodes because it draws sub-microampere sleep current via nanoWatt XLP technology, includes a 10-bit ADC with up to 4 channels, and runs from a 2.5V-5.5V supply compatible with single-cell Li-ion or 2xAA batteries. With the internal 16 MHz oscillator factory-calibrated to +/-1% and CLC wake-on-event logic, designers can duty-cycle a temperature or humidity sensor at <1% duty cycle while keeping average current below 5 uA and battery life exceeding 5 years on a 2200 mAh cell. The 1.75 KB Flash holds small state machines and sensor compensation tables without needing an external EEPROM.
推薦
PWM LED Driver / Dimmer
The PIC12F1501-E/MS excels at LED dimming thanks to its hardware PWM module plus the Numerically Controlled Oscillator (NCO) which provides fine frequency resolution for flicker-free dimming down to 0.1% duty cycle. With 20 MHz core speed the PWM can operate above 100 kHz to drive external MOSFETs switching high-brightness LEDs or strips, while the CLC cell can combine PWM outputs for RGB color mixing without software overhead. The wide 2.5V-5.5V supply range lets the same PIC12F1501 board drive both 3.3V indicator LEDs and 5V LED strings without level shifters, simplifying BOM and PCB layout.
推薦
Small Consumer Appliance Control
The PIC12F1501-E/MS is widely used in small consumer appliances such as coffee makers, blenders, and hair dryers where 4-6 I/O pins are sufficient for button inputs, relay drive, buzzer control, and status LEDs. The enhanced mid-range core runs 49 instructions and handles state-machine logic in 1.75 KB Flash while the 10-bit ADC reads thermistor or potentiometer inputs for temperature or speed control. Brown-out detect and watchdog timer provide the robustness required for unattended operation, and the -E temperature grade covers under-cabinet and hot-zone mounting up to 125 C junction.
推薦
Capacitive Touch Button Interface
The PIC12F1501-E/MS can implement capacitive touch sensing using the mTouch SDK with the 10-bit ADC and CLC peripheral to debounce and post-process sensor readings, supporting 1-3 touch buttons in the same 8-pin package. Its sub-microampere sleep current allows battery-powered remote controls and wall switches to sit idle for years while waking on a touch event. The internal 16 MHz oscillator provides stable timing for charge-time measurement cycles, and the 8-MSOP footprint fits inside the tightest PCB outlines behind decorative panels.
推薦
Automotive Aftermarket Sensor Module
The PIC12F1501-E/MS with its -40 C to +125 C extended temperature grade is qualified for automotive aftermarket sensor modules such as tire-pressure monitors, cabin air-quality sensors, and aftermarket alarm interfaces. The CLC and NCO peripherals let the MCU synthesize precision timing or waveform generation without external timers, while the 10-bit ADC reads Wheatstone-bridge sensors directly. The 8-MSOP package is small enough to fit inside an OBD-II dongle or tire valve stem housing, and its 2.5V-5.5V input range works with 12V automotive rails after a simple LDO drop.
推薦
Industrial Sensor Signal Conditioner
The PIC12F1501-E/MS serves as a low-cost front-end signal conditioner for industrial 4-20 mA loop sensors, thermocouples, and RTDs where its 10-bit ADC and PWM output can convert analog measurements into either PWM duty-cycle or frequency outputs for transmission to a PLC. The -E temperature grade supports panel-mount industrial installations where ambient temperatures reach 85 C, and the brown-out detect ensures the MCU restarts cleanly after brown-out events in noisy factory environments. Its enhanced mid-range core runs PID loops in firmware at sub-millisecond intervals, replacing dedicated analog controllers in budget-sensitive applications.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12F1501-E/MS — 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 | PIC12F1501-I/MS | PIC12F1822-E/MS | PIC12F1840-E/MS | PIC12F1501-E/SN |
|---|---|---|---|---|---|
| Package | 8-MSOP | 8-MSOP - same | 8-MSOP - same | 8-MSOP - same | 8-SOIC - same pinout, different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 1.75 KB | 1.75 KB | 3.5 KB | 7 KB | 1.75 KB |
| RAM Size | 64 bytes | 64 bytes | 128 bytes | 256 bytes | 64 bytes |
| Maximum Clock Speed | 20 MHz | 20 MHz | 32 MHz | 32 MHz | 20 MHz |
| Operating Temperature Range | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (E) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| CLC Peripheral | Yes | Yes | Yes | Yes | Yes |
| Unit Price @ 1 (as of 2026-09-15) | $1.04 | $0.95 | $1.30 | $1.55 | $1.04 |
主要差異化特點
- Factory-calibrated internal oscillator eliminates external crystal (對比PIC12F1840-E/MS)
- Lowest-cost 8-pin PIC MCU with CLC and NCO peripherals (對比PIC12F1822-E/MS)
- Extended -40 C to +125 C temperature grade in MSOP package (對比PIC12F1501-I/MS)
設計說明
Place a 100 nF decoupling capacitor as close as possible to VDD (pin 1) and VSS (pin 8) of the PIC12F1501-E/MS, with the trace length kept under 3 mm. For designs using the ADC, add a bulk 10 uF tantalum or ceramic capacitor near the MCU to suppress supply-rail ringing from relay or PWM switching loads. The internal voltage regulator requires VDD > 2.5V; below this, brown-out detect triggers a safe reset. Use MCP1700-3302E LDO upstream to provide clean 3.3V from higher input rails.
Pin 4 (RA3/MCLR) is input-only and shares the MCLR reset function; it has an internal weak pull-up enabled by configuration bits, but in noisy industrial environments add an external 4.7 kohm-10 kohm pull-up to VDD to ensure reliable reset. Forgetting to disable the MCLR function in the configuration word disables pin 4 as a general-purpose input - always verify the CONFIG register settings in MPLAB X before finalizing firmware. ICSPCLK and ICSPDAT pins (6 and 7) are multiplexed with RA1 and RA0; ensure your PCB layout does not place series resistors >470 ohm on these lines or ICSP programming will fail.
Route the ICSP programming header traces (ICSPCLK pin 6, ICSPDAT pin 7) away from PWM or switching signals to avoid noise-induced programming failures. Keep analog input traces (RA0-RA5) short and guarded with ground traces to minimize ADC crosstalk; the 10-bit ADC has limited dynamic range and benefits from 4-layer PCB stack-up with a dedicated ground plane. When using the internal oscillator, do not place the MCU near a switching power converter or crystal oscillator without shielding - the +/-1% accuracy can degrade under EMI.
合規資訊
Lead-free MSOP package per MSL1 / 260 C JEDEC J-STD-020 reflow profile. Not AEC-Q100 qualified - select PIC16F or automotive-grade PIC parts if AEC-Q100 is mandatory.
