PIC12LF1501-E/MS - 8-bit MCU, 1.75KB Flash, 20MHz, MSOP-8 | Microchip
MPN： PIC12LF1501-E/MS ✓ 啟用中PIC12LF1501-E/MS 概覽
What is a PIC12 microcontroller? The PIC12 family is Microchip's line of 8-bit Harvard-architecture microcontrollers built around a RISC instruction set with 14-bit wide instructions. PIC microcontrollers are flash-programmable system-on-chip devices that integrate CPU core, non-volatile program memory, RAM, EEPROM (where present), and a rich set of peripherals including ADC, timers, PWM, comparators, and communication modules. The PIC12LF1501 belongs to the PIC12F subfamily, which targets low-pin-count applications. The 'LF' suffix indicates the extended low-voltage operating range, while the '1501' designates the part within the family.
Key features include an integrated 10-bit ADC with up to 4 input channels, a 5-bit DAC, three timers, four PWM channels, a comparator, and on-chip configurable logic cells (CLC) and a numerically controlled oscillator (NCO). The device also includes a brown-out reset (BOR), power-on reset (POR), and a watchdog timer (WDT) for robust embedded operation. Per the Microchip PIC12LF1501 datasheet, these peripherals are accessible via the standard PIC12 instruction set.
The PIC12LF1501 uses an enhanced mid-range PIC core with a 14-bit instruction word, 8-level hardware stack, and interrupt controller supporting both core and peripheral interrupts. Internal oscillator options support operation up to 16MHz without external components, while the device can also accept an external clock. The 64-byte SRAM and 1.75KB Flash provide sufficient program space for typical small-form-factor applications in consumer, industrial, and IoT markets.
Typical applications include battery-powered IoT sensor nodes, consumer remote controls, LED lighting controllers, small motor control loops, white goods, and wearable devices. The combination of 6 I/O, 10-bit ADC, CLC, NCO, and PWM makes it especially well-suited for mixed-signal, low-power designs.
When designing with this part, verify your VDD stays within 2.5V to 3.6V. Use the internal 16MHz HFINTOSC to minimize external component count, and leverage the CLC and NCO peripherals to offload timing-critical logic from the CPU.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a complete sourcing and design reference for engineers evaluating the PIC12LF1501-E/MS.
直接替換替代品，適用於 PIC12LF1501-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： PIC12LF1501-E/MS （相同外形與佔位） — 差異在於 Core Architecture, Operating Temperature, ADC, Internal Oscillator, MSL Level.
PIC12LF1501-I/MS
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12LF1501T-I/MS
✅ 直接替換聯絡詢價
查看資料表 →PIC12LF1501-E/MSVAO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12LF1501-E/MF
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12LF1501-E/MC
✅ 直接替換聯絡詢價
查看資料表 →PIC12LF1501-E/MS 最大額定值與電氣特性
| Core Architecture | PIC 8-bit RISC (Enhanced Mid-Range, 14-bit instruction) |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| Data SRAM | 64 bytes |
| Data EEPROM | 0 bytes |
| Maximum CPU Speed | 20 MHz |
| Operating Voltage (VDD) | 2.5 V to 3.6 V |
| I/O Pins | 6 |
| ADC | 10-bit, up to 4 channels |
| DAC | 5-bit, 1 channel |
| Timers | 3 (Timer0, Timer1, Timer2) |
| PWM Channels | 4 |
| Comparators | 1 |
| CLC (Configurable Logic Cell) | Yes |
| NCO (Numerically Controlled Oscillator) | Yes |
| Internal Oscillator | 16 MHz HFINTOSC |
| Watchdog Timer (WDT) | Yes |
| Brown-out Reset (BOR) | Yes |
| Power-on Reset (POR) | Yes |
| 工作溫度 | -40C to +125C (Extended, 'E' grade) |
| 封裝 | MSOP-8 (3.0 mm body) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC12LF1501-E/MS 腳位配置
| 腳位 1 | RA5/CLKIN — Bidirectional I/O / external clock input |
| 腳位 2 | RA4/AN3/CLC1OUT — Bidirectional I/O / analog input channel 3 / CLC1 output |
| 腳位 3 | RA3/MCLR/VPP — Input only / Master Clear reset / programming voltage |
| 腳位 4 | RA2/AN2/T6OUT — Bidirectional I/O / analog input channel 2 / Timer6 output |
| 腳位 5 | RA1/ICSPCLK/AN1 — Bidirectional I/O / ICD clock / analog input channel 1 |
| 腳位 6 | RA0/ICSPDAT/AN0 — Bidirectional I/O / ICD data / analog input channel 0 |
| 腳位 7 | VSS — Ground reference |
| 腳位 8 | VDD — Positive power supply (2.5V to 3.6V) |
典型應用
PIC12LF1501-E/MS 適用於 6 應用s: Battery-Powered IoT Sensor Node, Consumer Remote Control (IR/RF), LED Lighting Controller, Small DC Motor / Fan Speed Control, Wearable Health / Fitness Sensor, White Goods / Appliance User Interface.
Battery-Powered IoT Sensor Node
The PIC12LF1501-E/MS is well suited for battery-powered IoT sensor nodes because it operates from 2.5V to 3.6V and supports sleep currents below 1 uA in its lowest-power mode, making it ideal for 2x AA alkaline or single-cell LiFePO4 designs. Its 10-bit ADC with 4 channels handles temperature, light, or voltage sensing, while the 6 I/O pins are sufficient to drive a low-power RF module or BLE transceiver enable line. According to the Microchip PIC12LF1501 datasheet, the CLC and NCO peripherals can offload sensor timing logic, reducing firmware wake-time and extending battery life in duty-cycled IoT deployments.
推薦
Consumer Remote Control (IR/RF)
The PIC12LF1501-E/MS fits consumer remote control designs thanks to its compact MSOP-8 footprint, 6 I/O pins, and integrated NCO for high-resolution carrier generation in the 36kHz to 40kHz IR band. The PIC12 core runs NEC, RC5, or proprietary IR protocols without external timing ICs, and its 2.5V to 3.6V range is compatible with single CR2032 cells (via boost or direct-drive topology). Per the Microchip PIC12LF1501 datasheet, the CLC can implement PWM modulation in hardware, freeing the CPU from tight carrier-timing loops and reducing average current draw between button presses.
推薦
LED Lighting Controller
The PIC12LF1501-E/MS is ideal for small LED lighting controllers where its 4 PWM channels drive RGB or RGBW LED strings, and its 10-bit ADC reads ambient light or potentiometer color-mix inputs. Operating from 2.5V to 3.6V, it can be powered directly from a 3.3V LDO downstream of an offline LED driver. According to the Microchip PIC12LF1501 datasheet, the NCO provides fade-timing resolution beyond standard PWM, enabling smooth logarithmic dimming curves that match human perception, while the CLC can implement hardware color-mixing combinational logic.
推薦
Small DC Motor / Fan Speed Control
The PIC12LF1501-E/MS handles small DC motor or fan speed control using its 4 PWM outputs and 3 timers for closed-loop RPM regulation. The 10-bit ADC reads back tachometer or back-EMF signals, and the comparator can implement hardware current limiting. Operating from 2.5V to 3.6V, the part works in 3.3V brushless DC fan or low-voltage DC motor designs. Per the Microchip PIC12LF1501 datasheet, the extended -40C to +125C temperature range supports under-hood or enclosed motor environments where commercial-grade MCUs would fail.
推薦
Wearable Health / Fitness Sensor
The PIC12LF1501-E/MS suits compact wearable health devices because its 8-pin MSOP package fits sub-1 square inch PCBs and its 2.5V-3.6V range accepts a single Li-ion cell via a 3.3V LDO. Its 10-bit ADC with 4 channels can read heart-rate (PPG) photodiode, skin temperature, battery voltage, and motion interrupt, while the CLC can implement heart-rate edge detection in hardware to wake the main processor only on valid events. According to the Microchip PIC12LF1501 datasheet, sleep currents in the nanoamp range preserve battery life across multi-day wear cycles.
推薦
White Goods / Appliance User Interface
The PIC12LF1501-E/MS is appropriate for white-goods user-interface modules where its 6 I/O drive button matrices, LED indicators, and buzzer PWM, while the 10-bit ADC reads potentiometer or rotary-encoder inputs. The -40C to +125C extended temperature grade ensures operation in oven-adjacent or refrigerated compartments where consumer-grade MCUs would fail. Per the Microchip PIC12LF1501 datasheet, the BOR and WDT provide the robustness needed for household appliance safety standards, and the small MSOP-8 footprint enables slim bezel designs in modern front-panel layouts.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12LF1501-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 | PIC12LF1501-I/MS | PIC12LF1501T-I/MS | PIC12LF1501-E/MSVAO | PIC12LF1501-E/MF | PIC12LF1501-E/MC |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | MSOP-8 (3.0 mm) | MSOP-8 (3.0 mm) - same | MSOP-8 (3.0 mm) - same | MSOP-8 (3.0 mm) - same | MSOP-8 (3.0 mm) - same | MSOP-8 (3.0 mm) - same |
| Program Memory | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash | 1.75 KB Flash |
| RAM | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes | 64 bytes |
| Operating Voltage | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V | 2.5 V to 3.6 V |
| Maximum Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Automotive (AEC-Q100) | Extended (-40C to +125C) | Extended (-40C to +125C) |
| ADC | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels | 10-bit, 4 channels |
| PWM Channels | 4 | 4 | 4 | 4 | 4 | 4 |
主要差異化特點
- Extended temperature grade up to +125C (對比PIC12LF1501-I/MS)
- MSOP-8 package for tight PCB layouts (對比PIC12F1501-E/P (PDIP-8))
- Integrated CLC and NCO peripherals (對比PIC12F683-E/MS)
設計說明
Estimated: VDD decoupling for the PIC12LF1501-E/MS requires a 100 nF ceramic capacitor placed within 5 mm of the VDD pin (pin 8) and a bulk 1 uF to 10 uF capacitor on the same rail. Per the Microchip PIC12LF1501 datasheet, the device draws brief current spikes during ADC conversion and Flash programming, and inadequate bulk capacitance can cause VDD droop that triggers the Brown-out Reset (BOR). For battery designs, place a 100 nF + 10 uF pair on VDD and 100 nF on AVDD if used.
Route the MCLR/RA3 pin (pin 3) carefully. If unused as reset, the Microchip PIC12LF1501 datasheet recommends tying MCLR to VDD through a 10 kOhm pull-up resistor, with the ICSP programming header optionally including a capacitor to ground for in-circuit debugging. Avoid long traces on RA0/RA1 (ICSPDAT/ICSPCLK) because they are used for in-circuit programming and long traces can cause programming failures.
Do not exceed 3.6V on VDD; the LF variant is not 5V tolerant. Per the Microchip PIC12LF1501 datasheet, applying 5V to any I/O pin will damage the device. If interfacing to 5V logic, use a level translator (e.g., resistive divider or dedicated level shifter). Also note that RA3 (pin 3) is input-only - attempting to drive it as an output will damage the silicon. Finally, the device has 0 bytes of EEPROM, so use Flash for non-volatile data storage with proper wear-leveling.
Place the MSOP-8 land pattern per JEDEC MO-187 with thermal pad not connected (this package has no exposed pad). Per Microchip PIC12LF1501 datasheet and the MSOP-8 land pattern recommendations, use 0.4 mm pitch pads with solder mask defined (SMD) openings for best solder joint reliability. Route digital switching signals away from the analog-capable pins (RA0-RA2, RA4) to minimize ADC noise coupling; if unavoidable, add a guard ground trace between the noisy and analog signals.
合規資訊
RoHS and lead-free compliant per Microchip product page. -E/MS variant is not AEC-Q100 qualified; for automotive applications use PIC12LF1501-E/MSVAO which is AEC-Q100 screened to the same die.
