PIC16LF1526-E/PT - 8-Bit MCU 14KB Flash 64-TQFP | Microchip
MPN: PIC16LF1526-E/PT ✓ Hoạt độngPIC16LF1526-E/PT Tóm tắt
Background Knowledge: An 8-bit microcontroller (MCU) is a small computer-on-a-chip built around an 8-bit data bus and a RISC or CISC CPU core. The PIC16 family from Microchip uses a modified Harvard RISC architecture that executes one instruction per cycle (200 ns at 20 MHz) and is positioned in the hierarchy as: MCU -> microcontroller -> embedded processor -> semiconductor. The 'LF' suffix denotes the low-voltage variant (1.8V-3.6V) of the F-series, and the family is known for its nanoWatt XLP extreme-low-power technology aimed at battery-powered and energy-harvesting applications.
Key features include a 20 MHz maximum CPU clock, 10-bit ADC with multiple channels, 10x CCP (Capture/Compare/PWM) modules, 2x SPI, 2x I2C (Master mode), and 2x EUSART peripherals. The device integrates nanoWatt XLP sleep modes for sub-microamp standby current, integrated debug support (no debug header required), and ICSP (In-Circuit Serial Programming) for field updates.
The PIC16LF1526 uses Microchip's enhanced mid-range core with a 14-bit instruction word, providing a single-cycle hardware multiplier, interrupt context save/restore on stack, and 31-level hardware stack. Memory-mapped peripherals share a unified bus, and the device supports PICkit 3, MPLAB ICD 3, and MPLAB X IDE development tools.
Typical applications include low-power sensor nodes, battery-powered IoT endpoints, consumer appliances with capacitive touch UIs, industrial control panels, and USB HID/CDC interfaces. The wide operating voltage (1.8V-3.6V) and low sleep current make it ideal for products powered by coin-cell or 2xAA batteries where months-to-years of battery life are required.
When designing with this MCU, mind the absolute maximum VDD of 3.6V (the LF variant); connecting a 5V rail will permanently damage the part. Use decoupling caps of 100 nF + 1 uF per VDD pin, and place the ICSPCLK/ICSPDAT traces away from high-frequency switching signals to avoid debug lockups.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1526-E/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16LF1526-E/PT (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, ADC, Core Architecture, I/O Pins.
PIC16LF1526-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1527-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1526-E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1519-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16LF1526-E/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1526-E/PT Tỷ lệ tối đa & tính chất điện
| Core | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| RAM | 768 bytes |
| Maximum CPU Frequency | 20 MHz |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| ADC | 10-bit |
| CCP Modules | 10 |
| SPI | 2 |
| I2C (Master) | 2 |
| EUSART | 2 |
| Hộp | 64-TQFP (10x10 mm) |
| Số chân | 64 |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40C to +125C (E suffix) |
| Instruction Set | 14-bit PIC16 enhanced mid-range |
| Low-Power Technology | nanoWatt XLP |
| Debug Support | Integrated, no debug header required (PICkit 3 / MPLAB ICD 3) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF1526-E/PT
| Chân 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Chân 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Chân 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Chân 4 | RA3/AN3 — Digital I/O / Analog input channel 3 |
| Chân 5 | RA4/AN4 — Digital I/O / Analog input channel 4 |
| Chân 6 | RA5/AN5 — Digital I/O / Analog input channel 5 |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD — Positive supply (1.8V-3.6V) |
| Chân 9 | RA6/OSC2 — Digital I/O / Crystal oscillator output |
| Chân 10 | RA7/OSC1 — Digital I/O / Crystal oscillator input |
| Chân 11 | RB0/AN8 — Digital I/O / Analog input channel 8 / Interrupt-on-change |
| Chân 12 | RB1/AN9 — Digital I/O / Analog input channel 9 |
| Chân 13 | RB2/AN10 — Digital I/O / Analog input channel 10 |
| Chân 14 | RB3/AN11 — Digital I/O / Analog input channel 11 |
| Chân 15 | RB4/AN12 — Digital I/O / Analog input channel 12 |
| Chân 16 | RB5/AN13 — Digital I/O / Analog input channel 13 |
| Chân 17 | RB6/ICSPCLK — Digital I/O / ICSP clock (programming/debug) |
| Chân 18 | RB7/ICSPDAT — Digital I/O / ICSP data (programming/debug) |
| Chân 19 | VDD — Positive supply (1.8V-3.6V) |
| Chân 20 | VSS — Ground reference |
| Chân 21 | RC0 — Digital I/O |
| Chân 22 | RC1 — Digital I/O |
| Chân 23 | RC2 — Digital I/O |
| Chân 24 | RC3 — Digital I/O |
| Chân 25 | RC4 — Digital I/O |
| Chân 26 | RC5 — Digital I/O |
| Chân 27 | RC6 — Digital I/O |
| Chân 28 | RC7 — Digital I/O |
| Chân 29 | RE0 — Digital I/O (port E) |
| Chân 30 | RE1 — Digital I/O (port E) |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive supply (1.8V-3.6V) |
| Chân 33 | RD0 — Digital I/O (port D) |
| Chân 34 | RD1 — Digital I/O (port D) |
| Chân 35 | RD2 — Digital I/O (port D) |
| Chân 36 | RD3 — Digital I/O (port D) |
| Chân 37 | RD4 — Digital I/O (port D) |
| Chân 38 | RD5 — Digital I/O (port D) |
| Chân 39 | RD6 — Digital I/O (port D) |
| Chân 40 | RD7 — Digital I/O (port D) |
| Chân 41 | RF0 — Digital I/O (port F) |
| Chân 42 | RF1 — Digital I/O (port F) |
| Chân 43 | VSS — Ground reference |
| Chân 44 | VDD — Positive supply (1.8V-3.6V) |
| Chân 45 | RG0 — Digital I/O (port G) |
| Chân 46 | RG1 — Digital I/O (port G) |
| Chân 47 | RG2 — Digital I/O (port G) |
| Chân 48 | RG3 — Digital I/O (port G) |
| Chân 49 | RG4 — Digital I/O (port G) |
| Chân 50 | RF2 — Digital I/O (port F) |
| Chân 51 | RF3 — Digital I/O (port F) |
| Chân 52 | RF4 — Digital I/O (port F) |
| Chân 53 | RF5 — Digital I/O (port F) |
| Chân 54 | RF6 — Digital I/O (port F) |
| Chân 55 | RF7 — Digital I/O (port F) |
| Chân 56 | RH0 — Digital I/O (port H) |
| Chân 57 | RH1 — Digital I/O (port H) |
| Chân 58 | RH2 — Digital I/O (port H) |
| Chân 59 | RH3 — Digital I/O (port H) |
| Chân 60 | RH4 — Digital I/O (port H) |
| Chân 61 | RH5 — Digital I/O (port H) |
| Chân 62 | RH6 — Digital I/O (port H) |
| Chân 63 | RH7 — Digital I/O (port H) |
| Chân 64 | MCLR/VPP — Master Clear reset input / Programming voltage |
Ứng dụng tiêu biểu
PIC16LF1526-E/PT phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Nodes, Consumer Appliance Control Panels, Capacitive Touch User Interfaces, Industrial Sensor Transmitters, USB HID / CDC Device Interfaces, Automotive Body Control Modules.
Battery-Powered IoT Sensor Nodes
The PIC16LF1526-E/PT is a strong fit for battery-powered IoT sensor nodes because its nanoWatt XLP technology delivers deep-sleep currents below 1 uA, and its 1.8V-3.6V VDD range directly accepts 2xAA or coin-cell batteries without a regulator. The 14 KB Flash is enough for sensor-fusion or Modbus firmware, while the integrated 10-bit ADC handles temperature, humidity, or analog sensor inputs without external converters. Compared to a 32-bit MCU, the 8-bit PIC16 core draws far less idle power, extending battery life to multi-year levels. Use deep sleep between sensor reads and wake on timer or external interrupt for maximum efficiency.
Được đề xuất
Consumer Appliance Control Panels
The PIC16LF1526-E/PT is well-suited for consumer appliance control panels where cost and reliability matter more than raw compute. The 10 CCP modules drive PWM outputs for LED backlights, buzzers, or motor control loops, while 2x EUSART and 2x SPI easily connect to Wi-Fi/BLE modules and display drivers. The 64-TQFP package has generous I/O headroom (54 I/O pins) for keypad scanning, segment-LCD driving, and indicator LEDs. The -40C to +125C extended temperature range (E suffix) handles the thermal envelope inside dishwashers, ovens, and refrigerators without derating.
Được đề xuất
Capacitive Touch User Interfaces
The PIC16LF1526-E/PT provides the integrated peripherals required for capacitive touch UIs: a fast 10-bit ADC for charge-time measurement, 10 CCP/PWM channels for haptic feedback or LED dimming, and 2x EUSART/SPI to drive companion touch controllers. The 14 KB Flash comfortably holds Microchip's mTouch reference firmware for 8-16 buttons. Low-power XLP modes let the MCU sleep between touches, drawing microamps - critical for battery-powered remote controls. The extended -40C to +125C operating range ensures consistent touch performance across cold garages and hot stovetops.
Được đề xuất
Industrial Sensor Transmitters
The PIC16LF1526-E/PT is ideal for 4-20 mA or HART-protocol sensor transmitters because its 10-bit ADC reads bridge pressure sensors or RTD inputs directly, and the 2x EUSART modules implement HART modems with external modulators. The 64-TQFP industrial-temp grade (E suffix) handles -40C to +125C factory-floor environments. NanoWatt XLP modes enable loop-powered designs where the entire transmitter draws <3.5 mA from the 4-20 mA loop. The 14 KB Flash is plenty for linearization, calibration, and HART state-machine code.
Được đề xuất
USB HID / CDC Device Interfaces
The PIC16LF1526-E/PT handles USB HID keyboard, mouse, or CDC virtual-COM-port applications when paired with an external USB-to-serial bridge or low-speed USB transceiver; the 2x EUSART modules talk to MCP2200 or CH340 bridges. The integrated debug support (no debug header required) simplifies firmware bring-up, while the 14 KB Flash stores HID report tables and command parsers. For HID-class devices, the LF1526's low sleep current (<1 uA) extends AAA-battery keyboard life to over a year. Designers can add a PIC16F1455 for native USB at the cost of losing peripherals.
Được đề xuất
Automotive Body Control Modules
The PIC16LF1526-E/PT's -40C to +125C extended operating range qualifies it for under-hood and cabin body-control applications such as window lifters, mirror controllers, or HVAC actuators. The 10 CCP/PWM channels drive H-bridge MOSFETs directly, while the 2x SPI ports connect to CAN transceivers (via external MCP2515) or LIN interfaces. The wide 1.8V-3.6V VDD lets it run directly from a regulated 3.3V automotive rail. For AEC-Q100 qualified variants, the PIC16F1526-E/PT automotive-grade equivalent is recommended; the LF1526-E is suitable for non-safety body-control subsystems where extended temp is sufficient.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1526-E/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16LF1526-I/PT | PIC16LF1527-I/PT | PIC16F1526-E/PT | PIC16LF1526-E/MR |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-QFN (MR) - same die, different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Voltage (VDD) | 1.8V to 3.6V | 1.8V to 3.6V | 1.8V to 3.6V | 2.3V to 5.5V | 1.8V to 3.6V |
| Flash Memory | 14 KB | 14 KB | 28 KB | 14 KB | 14 KB |
| RAM | 768 B | 768 B | 1536 B | 768 B | 768 B |
| CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Pin Count | 64 | 64 | 64 | 64 | 64 |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Bảo phân biệt quan trọng
- Extended -40C to +125C operating temperature (vsPIC16LF1526-I/PT)
- Low-voltage nanoWatt XLP technology at 1.8V minimum (vsPIC16F1526-E/PT)
- Drop-in compatible memory upgrade path within same package (vsPIC16LF1527-I/PT)
Ghi chú thiết kế
Decouple every VDD pin (8, 19, 32, 44) with a 100 nF X7R ceramic capacitor placed within 3 mm of the pin, plus one bulk 1 uF to 10 uF capacitor on the main supply rail. The PIC16LF1526-E/PT has nanoWatt XLP sleep modes with currents below 1 uA only when VDD is stable and clean - any ripple above 50 mVpp on VDD can disrupt the WDT or BOR circuits and cause spurious wakeups. For battery applications, use an MCP1700 LDO with <1.6 uA quiescent current to regulate 2xAA into a clean 3.3V rail.
Route the ICSP clock (pin 17, RB6/ICSPCLK) and ICSP data (pin 18, RB7/ICSPDAT) as short, parallel traces with a ground guard on either side, away from switching nodes. Add 4.7 kohm pull-ups on both ICSP lines if the application is hot-pluggable. The 64-TQFP package has a 0.5 mm pitch - use 0.15 mm trace/space rules and a 4-layer PCB with continuous ground plane beneath the device to ensure reliable reflow and low EMI. Keep the exposed thermal pad (if present on the package variant) soldered to a 5x5 mm copper pour on the top layer.
Do NOT apply 5V to the PIC16LF1526-E/PT VDD pins - the absolute maximum is 3.6V and 5V will permanently damage the device. For 5V systems, choose the PIC16F1526 variant instead. Also note that configuration words must be programmed for the correct oscillator mode (e.g., HS for >8 MHz crystal, XT for 1-4 MHz); leaving the default EXTRC with no crystal causes the MCU to run from the internal oscillator at 4 MHz which may surprise code calibrated for 20 MHz operation. Finally, clear the GIE bit before entering sleep if interrupt-driven wakeup is not implemented, otherwise an unhandled interrupt will immediately wake the part.
Thông tin tuân thủ
RoHS compliant per Microchip product page. PIC16LF1526-E/PT is the extended-temp grade but is NOT AEC-Q100 qualified - for automotive safety applications, use the AEC-Q100 qualified PIC16F1526-E/PT automotive variant or contact Microchip for the Q-grade equivalent.
