PIC12LF1552-E/SN - 8-Bit 32MHz 3.5KB Flash MCU | Microchip
MPN： PIC12LF1552-E/SN ✓ 啟用中PIC12LF1552-E/SN 概覽
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), volatile data memory (RAM), and peripheral interfaces such as ADC, timers, and communication ports. PIC12F-series MCUs sit at the low end of the PIC12 architecture, optimized for cost-sensitive applications that need only 6 I/O pins and minimal code space. Within Microchip's broader hierarchy, the PIC12LF1552 belongs to PIC microcontroller -> 8-bit MCU -> embedded controller -> semiconductor IC.
Key features include 32MHz CPU speed (8MHz instruction cycle with 4x PLL), hardware I2C/SPI, 6 I/O pins, a 10-bit ADC with up to 4 channels, multiple timer modules, and an internal 32kHz LFINTOSC. The 'LF' prefix denotes the wide 1.8V-3.6V supply range suited to battery-powered systems, and the 'E' suffix indicates the -40C to +125C extended operating temperature grade.
The PIC12LF1552 uses a RISC-based Harvard architecture with 14-bit instruction words, 8-bit data path, and 49 instruction opcode set. This yields compact code density and deterministic interrupt latency, making it well-suited to real-time control tasks where predictable timing is critical.
Typical applications include consumer electronics remote controls, low-cost sensor nodes, LED lighting controllers, capacitive touch HMI (mTouch), small appliance control, and battery-powered IoT edge devices. Its hardware I2C and tiny footprint also suit wearable and disposable medical accessories.
When designing, note that 3.5KB Flash limits code size; consider the PIC12LF1552-E/P (PDIP) variant for through-hole prototyping or PIC12LF1552T-I/SN for tape-and-reel volume production. Always decouple VDD with a 0.1uF ceramic cap placed within 3mm of the pin.
直接替換替代品，適用於 PIC12LF1552-E/SN — 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： PIC12LF1552-E/SN （相同外形與佔位） — 差異在於 Package, Operating Temperature, Mounting Type, RoHS Status, ADC.
PIC12LF1552-I/SN
✅ 直接替換📋 參考替代品（不在目錄中）
PIC12LF1552T-I/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12LF1552-E/P
✅ 直接替換聯絡詢價
查看資料表 →PIC12LF1501-E/SN
✅ 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 →PIC12F1572-E/SN
✅ 直接替換聯絡詢價
查看資料表 →PIC12LF1552-E/SN 最大額定值與電氣特性
| Series | PIC® 12F |
| Core Processor | PIC |
| Core Size | 8-Bit |
| CPU Speed | 32 MHz |
| Program Memory | 3.5 KB (2K x 14) Flash |
| RAM | 256 bytes |
| Number of I/O | 6 |
| ADC | 10-bit |
| ADC Channels | 4 |
| 供應電壓 | 1.8 V to 3.6 V |
| 工作溫度 | -40C to +125C |
| 封裝 | 8-SOIC (SN, 3.90 mm) |
| 安裝類型 | Surface Mount |
| Connectivity | I2C, SPI |
| RoHS 狀態 | Compliant |
| MSL 等級 | 1 |
PIC12LF1552-E/SN 腳位配置
| 腳位 1 | VDD — Positive power supply (1.8V-3.6V) |
| 腳位 2 | RA5 — GPIO RA5 / T1CKI / AN4 / CCP1 |
| 腳位 3 | RA4 — GPIO RA4 / AN3 / SOSCO / CLKOUT |
| 腳位 4 | RA3/MCLR — GPIO RA3 / MCLR (master clear reset) |
| 腳位 5 | RC5 — GPIO RC5 / AN2 / CCP1 |
| 腳位 6 | RC4 — GPIO RC4 / SDA / AN1 |
| 腳位 7 | RC3 — GPIO RC3 / SCL / AN0 |
| 腳位 8 | VSS — Ground reference |
典型應用
PIC12LF1552-E/SN 適用於 6 應用s: Consumer Remote Control, Capacitive Touch HMI (mTouch), Battery-Powered IoT Sensor Node, LED Lighting Controller, Small Appliance Control, Wearable Health Device.
Consumer Remote Control
The PIC12LF1552-E/SN's 8-SOIC footprint, 1.8V-3.6V supply, and hardware I2C make it a strong fit for compact IR/RF remote controls. Its 32MHz CPU delivers enough bandwidth for IR protocol encoding (RC5, NEC, SIRC) at 38kHz carrier, while 3.5KB Flash holds complete protocol stacks plus custom button mapping. Six GPIO pins suffice for a 5x1 button matrix with one interrupt line. Low-power SLEEP mode extends coin-cell battery life to years.
推薦
Capacitive Touch HMI (mTouch)
Microchip's mTouch technology leverages the PIC12LF1552-E/SN's 10-bit ADC and CTMU (Charge Time Measurement Unit) for capacitive touch sensing. The MCU can scan 4 button channels with hardware noise rejection, making it ideal for mTouch evaluation kit platforms including water-rejection algorithms and proximity sensing. Operating at 3.3V from 1.8-3.6V, it draws minimal current during scans, suiting battery-powered touch panels.
推薦
Battery-Powered IoT Sensor Node
The PIC12LF1552-E/SN's 1.8V-3.6V supply and 32kHz LFINTOSC support battery-powered sensor nodes lasting years on a coin cell. The 10-bit ADC reads temperature, humidity, or light sensors via I2C, while the 32MHz HFINTOSC wakes only for short burst transmissions. The 8-SOIC package occupies <30mm2 board area, suiting wearable form factors. Microchip's nanoWatt XLP technology provides multiple SLEEP modes below 1uA.
推薦
LED Lighting Controller
The PIC12LF1552-E/SN drives small RGB or single-channel LED controllers in decorative lighting. Its 32MHz CPU generates precise PWM for color mixing, while 3.5KB Flash stores lighting sequences and DMX/WS2812-style protocols. The 6 GPIO pins control multiple LED channels or button inputs, and 1.8-3.6V operation allows direct Li-ion or USB power. Hardware I2C enables digital LED driver chip interfacing.
推薦
Small Appliance Control
Coffee makers, blenders, and personal care devices use the PIC12LF1552-E/SN for motor control, button scanning, and user interface management. The 32MHz speed and hardware I2C support BLDC motor driver ICs, while 6 GPIO handle switch matrix and LED indicators. The 1.8-3.6V supply pairs with 3.3V LDO regulators, and the -40C to +125C extended temperature grade covers consumer and industrial appliance environments.
推薦
Wearable Health Device
The PIC12LF1552-E/SN fits disposable and low-cost wearables like fitness bands, smart patches, and medical sensors. Its 8-SOIC package is small enough for compact PCB layouts, while the LF voltage range supports single coin-cell (CR2032) operation. The 10-bit ADC and I2C interface read biosensors (heart rate, SpO2, temperature), and XLP low-power modes extend battery life. The MCU's deterministic interrupt latency supports real-time sensor sampling.
推薦
推薦產品摘要
工程參考資料，適用於 PIC12LF1552-E/SN — 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 | PIC12LF1552-I/SN | PIC12LF1552T-I/SN | PIC12LF1501-E/SN | PIC12F1501-E/SN |
|---|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same | 8-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 20 MHz | 20 MHz |
| Program Memory (Flash) | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB | 1.75 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 64 bytes | 64 bytes |
| Supply Voltage | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 5.5V |
| Hardware I2C | Yes (MSSP) | Yes (MSSP) | Yes (MSSP) | No | No |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit + DAC |
主要差異化特點
- Higher 32MHz CPU vs 20MHz family members (對比PIC12LF1501-E/SN)
- Hardware I2C peripheral (對比PIC12LF1501-E/SN / PIC12F1501-E/SN)
- 2x Flash and 4x RAM vs PIC12F1501 family (對比PIC12F1501-E/SN)
設計說明
Decouple VDD (pin 1) with a 0.1uF ceramic capacitor placed within 3mm of the pin and connected to VSS (pin 8) with a short trace. For noisy environments, add a bulk 1uF-10uF tantalum or aluminum electrolytic cap on the supply rail. The PIC12LF1552-E/SN's wide 1.8V-3.6V supply allows direct operation from a regulated 3.3V rail or a single Li-ion/coin cell.
Pin 4 (RA3/MCLR) is shared with the MCLR reset function. If MCLR is enabled (default), pin 4 must see a clean logic high for normal operation. Tie it directly to VDD through a 10kohm resistor if unused as GPIO. Floating MCLR causes erratic resets. Disable MCLR in CONFIG words to use RA3 as a normal GPIO. Also note that the 8-SOIC package has only 8 pins; not all peripherals are brought out.
For capacitive touch (mTouch) applications, route the ADC/sensor traces as short as possible, guard them with a GND ring, and place the PIC12LF1552-E/SN at least 5mm from noisy traces (PWM, switching). The CTMU-based mTouch library requires careful sensor layout to achieve specified sensitivity. Refer to Microchip AN1478 (mTouch Design Guidelines) for layout best practices.
合規資訊
RoHS compliant per Microchip product page. The PIC12LF1552-E/SN itself is not AEC-Q100 qualified; for automotive applications, consult Microchip's PIC16 family. MSL Level 1 per JEDEC J-STD-020.
