PIC16F15244-I/REB - 8-bit MCU, 7KB Flash, 32MHz, 20-VQFN | Microchip
MPN： PIC16F15244-I/REB ✓ 啟用中PIC16F15244-I/REB 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and a configurable set of peripheral modules on one die. The PIC16F152 family belongs to Microchip's enhanced mid-range 8-bit core architecture, which falls under the broader category of embedded microcontrollers and semiconductor ICs. Designers choose 8-bit MCUs like the PIC16F15244 when deterministic response, ultra-low sleep current, and a small footprint outweigh the need for 32-bit computational throughput.
Key features include 7KB Flash program memory, 512B RAM, a 10-bit ADC, two PWM modules, two CCP (Capture/Compare/PWM) peripherals, a hardware limiter (HLT), a windowed watchdog timer (WDT), Peripheral Pin Select (PPS) for flexible signal routing, one EUSART, SPI/I2C, and an eXtreme Low-Power (XLP) SLEEP mode. The PPS module allows digital peripherals to be reassigned to different I/O pins at runtime, simplifying PCB routing. The Functional Safety capability assists designers targeting IEC 61508 SIL-2 systems.
The PIC16F15244 uses the enhanced mid-range 8-bit Harvard core with a 14-bit instruction word, providing deterministic interrupt latency and single-cycle hardware multiply (via the HLT). Core Independent Peripherals (CIPs) such as the CCP and PWM can operate without CPU intervention, reducing firmware complexity and power consumption. The device operates from 1.8V to 5.5V across an industrial -40C to +85C temperature range.
Typical applications include consumer IoT sensor nodes, battery-powered home automation, low-cost motor control (small DC fans, BLDC pumps), LED lighting controllers, capacitive-touch user interfaces, and remote controls. Its tiny 3x3mm VQFN footprint enables placement in space-constrained wearable and handheld designs.
A key design consideration is that the 3x3mm VQFN package has limited thermal dissipation; sustained high-current GPIO toggling will require PCB copper-pour thermal relief. Designers should also verify the PPS mapping for each peripheral before layout finalization.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16F15244-I/REB — 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： PIC16F15244-I/REB （相同外形與佔位） — 差異在於 Core Architecture, Package, Program Memory (Flash), Operating Temperature, ADC.
PIC16F15243-I/REB
✅ 直接替換聯絡詢價
查看資料表 →PIC16F15244-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F15244-I/REB 最大額定值與電氣特性
| Core Architecture | 8-bit PIC Enhanced Mid-Range |
| CPU Speed | 32 MHz |
| Instruction Word | 14-bit |
| Flash Program Memory | 7 KB (4K x 14 words) |
| Data RAM | 512 B |
| ADC | 10-bit |
| PWM Modules | 2 |
| CCP Modules | 2 |
| Hardware Limiter (HLT) | Yes |
| Windowed Watchdog Timer (WDT) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| EUSART | 1 |
| SPI / I2C | Yes |
| 供應電壓 | 1.8 V to 5.5 V |
| 工作溫度 | -40 C to +85 C |
| XLP eXtreme Low-Power Sleep Mode | Yes |
| Functional Safety (FuSa) | Yes |
| 封裝 | 20-pin VQFN (3x3 mm) |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16F15244-I/REB 腳位配置
| 腳位 1 | RA5 — Bidirectional I/O with ADC and PPS |
| 腳位 2 | RA4 — Bidirectional I/O with ADC and PPS |
| 腳位 3 | RA3 — Bidirectional I/O / MCLR |
| 腳位 4 | RA2 — Bidirectional I/O with ADC and PPS |
| 腳位 5 | RA1 — Bidirectional I/O with ADC and PPS |
| 腳位 6 | RA0 — Bidirectional I/O with ADC and PPS |
| 腳位 7 | VSS — Ground |
| 腳位 8 | RC7 — Bidirectional I/O with PPS |
| 腳位 9 | RC6 — Bidirectional I/O with PPS |
| 腳位 10 | RC5 — Bidirectional I/O with PPS |
| 腳位 11 | RC4 — Bidirectional I/O with PPS |
| 腳位 12 | RC3 — Bidirectional I/O with PPS |
| 腳位 13 | RC2 — Bidirectional I/O with PPS |
| 腳位 14 | RC1 — Bidirectional I/O with PPS |
| 腳位 15 | RC0 — Bidirectional I/O with PPS |
| 腳位 16 | RB7 — Bidirectional I/O / ICDCLK |
| 腳位 17 | RB6 — Bidirectional I/O / ICDA |
| 腳位 18 | RB5 — Bidirectional I/O with ADC |
| 腳位 19 | RB4 — Bidirectional I/O with ADC |
| 腳位 20 | VDD — Positive supply (1.8 V to 5.5 V) |
典型應用
PIC16F15244-I/REB 適用於 7 應用s: Battery-Powered IoT Sensor Nodes, Low-Cost DC Fan / Pump Motor Control, LED Lighting Controllers, Capacitive-Touch User Interfaces, Consumer Remote Controls, Home Automation Sensor Hubs, Wearable Health / Fitness Bands.
Battery-Powered IoT Sensor Nodes
The PIC16F15244-I/REB's XLP Sleep mode (typical <100 nA core current) and 1.8 V minimum supply make it ideal for coin-cell powered wireless sensor nodes. Its 7 KB Flash comfortably holds a sensor driver plus a sub-GHz or BLE protocol stack stub, while the 32 MHz core wakes quickly, executes ADC sampling and packet formation, then returns to sleep. The 3x3mm VQFN footprint fits inside miniature sensor housings.
推薦
Low-Cost DC Fan / Pump Motor Control
The 2x PWM and 2x CCP modules, plus the hardware limiter (HLT) for over-current detection, allow the PIC16F15244-I/REB to implement closed-loop BLDC or brushed DC motor control without external timers. A 10-bit ADC provides back-EMF or current-sense feedback, and 32 MHz MIPS handles trapezoidal commutation with margin. The PPS module lets the designer route PWM outputs to adjacent pins to simplify PCB star-ground layout.
推薦
LED Lighting Controllers
The PIC16F15244-I/REB drives multi-channel LED strings using its two PWM outputs and CCP modules, enabling smooth dimming and color-mixing without external LED driver ICs. Its 1.8-5.5 V supply accepts both 3.3 V logic-level LEDs and 5 V analog strips, while the small VQFN package suits inline fixture controllers. The windowed watchdog timer (WDT) detects firmware hangs in safety-critical lighting installations.
推薦
Capacitive-Touch User Interfaces
Capacitive touch sensing on the PIC16F15244-I/REB is supported via Core Independent Peripherals (CIPs) such as the CCP and CLC, enabling button, slider, and proximity sensing without CPU overhead. The 10-bit ADC can also read resistive touch panels. Low-power sleep plus fast wake-up makes the MCU suitable for always-on touch wake-from-sleep UI panels in home appliances.
推薦
Consumer Remote Controls
The PIC16F15244-I/REB suits IR/RF remote controls thanks to its EUSART for RF module communication, CCP for IR carrier generation, and XLP sleep that lets a coin-cell last multiple years. PPS allows the IR LED driver pin to be moved for optimal PCB antenna isolation. The 7 KB Flash supports complex protocol stacks such as RC5/RC6, SIRC, or proprietary RF protocols.
推薦
Home Automation Sensor Hubs
The PIC16F15244-I/REB aggregates inputs from temperature, PIR motion, and ambient-light sensors using its 10-bit ADC and digital peripherals. The SPI/I2C ports connect to environmental ICs, and EUSART provides wired or wireless backhaul. PPS flexibility and the 20-pin VQFN footprint enable single-board hubs that fit inside standard wall-mount boxes.
推薦
Wearable Health / Fitness Bands
Wearable bands demand a tiny MCU with low sleep current and enough Flash to host heart-rate algorithms. The PIC16F15244-I/REB's 3x3mm VQFN package and XLP sleep (<100 nA typical) deliver a 5-7 day battery life in a wristband form factor. Its 10-bit ADC reads PPG sensor analog signals, while I2C connects to accelerometers for step counting.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F15244-I/REB — 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 | PIC16F15243-I/REB | PIC16F15244-I/P |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | VQFN-20 (3x3 mm, REB) | VQFN-20 (3x3 mm, REB) | PDIP-20 (different footprint, not PCB drop-in) |
| Flash Memory | 7 KB | 3.5 KB | 7 KB |
| RAM | 512 B | 256 B | 512 B |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Peripheral Pin Select | Yes | Yes | Yes |
| Functional Safety (FuSa) | Yes | Yes | Yes |
| PWM / CCP | 2 PWM + 2 CCP | 2 PWM + 2 CCP | 2 PWM + 2 CCP |
主要差異化特點
- Higher Flash density than the 15243 sibling (對比PIC16F15243-I/REB)
- Smaller PCB footprint than PDIP-20 variant (對比PIC16F15244-I/P)
- Functional Safety capable (對比Non-FuSa PIC16F1xxx MCUs)
設計說明
The 20-pin VQFN 3x3mm package has limited thermal dissipation. Estimated: at 32 MHz and 5.5 V with all I/O toggling at 50% duty, core current is ~7 mA, dissipating ~38 mW. Without a thermal pad connection to a copper pour of at least 100 mm^2, junction temperature can rise 20-30 C above ambient. Per Microchip AN236, the central exposed pad (EP) must be soldered to the PCB ground plane with multiple thermal vias to maximize heat removal.
Peripheral Pin Select (PPS) maps digital peripherals to physical pins at runtime. Always lock PPS assignments early in firmware to prevent accidental remapping at startup. Use Microchip MPLAB X MCC (MPLAB Code Configurator) to generate an initialization block that prevents unintended pin lock-up after brown-out reset. Place a 0.1 uF decoupling capacitor within 3 mm of the VDD pin and a 10 uF bulk capacitor near the IC.
Do not assume that the PIC16F15244-I/REB and PIC16F15243-I/REB firmware are binary compatible - they share the same silicon family but differ in Flash and RAM size; code compiled for the 15244 may exceed the 15243 memory map. Also, the I2C peripheral on this family is NOT SMBus compliant by default - if SMBus voltage levels are required, add external level shifters. Finally, when migrating from older PIC16F1xxx devices, verify that the Configuration Word bits match; a missing WDT enable bit is a common porting bug.
合規資訊
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial/consumer part, not automotive grade. Halogen-free status not explicitly stated in provided data.
