PIC18LF6627T-I/PT - 96KB Flash 8-bit MCU 40MHz TQFP-64 | Microchip
MPN: PIC18LF6627T-I/PT ✓ نشطPIC18LF6627T-I/PT نظرة عامة
A PIC microcontroller is a family of low-power, high-reliability 8-/16-/32-bit RISC microcontrollers built around Microchip's proprietary Harvard architecture. PIC18F-class devices sit in the upper tier of the 8-bit PIC portfolio, offering enhanced 16-bit-wide instruction words, linear program memory addressing up to 2 MB, a hardware multiply engine, C-compiler-friendly architecture, and rich on-chip peripherals. They function as the application's main control core - executing firmware, sampling sensors, driving actuators, and communicating with peripheral ICs over UART, SPI, I2C, USB, or CAN.
Key features of the PIC18LF6627 include 70 I/O pins (giving wide parallel bus or matrix-keypad headroom), a 10-bit ADC with up to 16 channels, multiple PWM modules, two enhanced USART modules, MSSP (SPI/I2C), a 16-bit timer/cascade, a CTMU charge-time measurement unit, an RTCC with timestamp functionality, and an on-chip 1% internal oscillator for BOM-cost reduction. The device supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD) via two pins, allowing firmware updates in the field without removing the MCU.
Architecture-wise the PIC18LF6627 uses the standard PIC18 16-bit modified-Harvard core with a hardware stack, a single-cycle ALU, and table-read/table-write Flash access. The 64-pin TQFP gives access to virtually every peripheral simultaneously - critical for designs that need both a parallel external memory bus and multiple serial channels.
Typical applications include industrial control panels, HVAC and building automation gateways, automotive body and infotainment nodes, USB peripherals, sensor aggregators, medical monitoring devices, and consumer appliances. The wide voltage range plus industrial temperature grade makes it equally suitable for outdoor, factory-floor, and battery-powered portable products.
When designing with this part, allocate a 10 nF + bulk decoupling pair per power pin, place a 4.7 kohm pull-up on MCLR if not driven by a supervisor, and reserve the ICSPDAT/ICSPCLK pins for the programming/debug header - even on production boards. The LF variant is interchangeable with the F variant when VDD does not exceed 5.5 V, giving flexibility to switch F/LF based on inventory.
This page synthesizes distributor pricing, drop-in alternatives, parameter comparisons, and practical design notes not aggregated in the manufacturer datasheet alone.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC18LF6627T-I/PT (نفس عامل الشكل والبصمة) — يختلف في Timers, Package, Core Architecture, ADC, I/O Pins.
PIC18LF6627-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF6622T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC18LF8722T-I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC18LF6627T-I/PT الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC18 (8-bit RISC Harvard) |
| Program Memory (Flash) | 96 KB (48K x 16) |
| Data RAM | 4 KB |
| EEPROM | 1 KB |
| Maximum CPU Frequency | 40 MHz |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| I/O Pins | 70 (multiplexed) |
| A/D Converter | 10-bit, up to 16 channels |
| PWM Modules | Yes (multiple CCP/ECCP) |
| USART | 2x Enhanced USART |
| MSSP (SPI/I2C) | Yes |
| Timers | Multiple 8-bit and 16-bit |
| Internal Oscillator | 31 kHz + 8 MHz selectable (1% accuracy) |
| درجة حرارة التشغيل | -40C to +85C (Industrial) |
| العلبة | 64-pin TQFP (PT), 10x10 mm |
| نوع التركيب | Surface Mount |
| مستوى MSL | 3 (168 hours) |
| Lead-Free / RoHS | Yes (lead-free, RoHS compliant) |
| ICSP / ICD | Yes (2-wire) |
| Operating Voltage Rails Supported | 2.5 V / 3.3 V / 5 V |
تكوين أطراف PIC18LF6627T-I/PT
| دبوس 1 | RF0 — Digital I/O / analog input |
| دبوس 2 | RF1 — Digital I/O / analog input |
| دبوس 3 | RF2 — Digital I/O / analog input |
| دبوس 4 | RF3 — Digital I/O / analog input |
| دبوس 5 | RF4 — Digital I/O / analog input |
| دبوس 6 | RF5 — Digital I/O / analog input |
| دبوس 7 | RF6 — Digital I/O / analog input |
| دبوس 8 | RF7 — Digital I/O / analog input |
| دبوس 9 | RG0 — Digital I/O |
| دبوس 10 | RG1 — Digital I/O |
| دبوس 11 | RG2 — Digital I/O |
| دبوس 12 | RG3 — Digital I/O |
| دبوس 13 | MCLR — Master Clear / Reset input |
| دبوس 14 | OSC1 — Crystal oscillator input |
| دبوس 15 | OSC2 — Crystal oscillator output |
| دبوس 16 | RA0 — Digital I/O / analog input |
| دبوس 17 | RA1 — Digital I/O / analog input |
| دبوس 18 | RA2 — Digital I/O / analog input |
| دبوس 19 | RA3 — Digital I/O / analog input |
| دبوس 20 | RA4 — Digital I/O / analog input |
| دبوس 21 | RA5 — Digital I/O / analog input |
| دبوس 22 | VDD — Power supply + |
| دبوس 23 | VSS — Ground |
| دبوس 24 | RA6 — Digital I/O / analog input |
| دبوس 25 | RA7 — Digital I/O / analog input |
| دبوس 26 | RB0 — Digital I/O / interrupt-on-change |
| دبوس 27 | RB1 — Digital I/O / interrupt-on-change |
| دبوس 28 | RB2 — Digital I/O / interrupt-on-change |
| دبوس 29 | RB3 — Digital I/O / interrupt-on-change |
| دبوس 30 | RB4 — Digital I/O / interrupt-on-change |
| دبوس 31 | RB5 — Digital I/O / interrupt-on-change |
| دبوس 32 | RB6 — Digital I/O / ICSP clock |
| دبوس 33 | RB7 — Digital I/O / ICSP data |
| دبوس 34 | RC0 — Digital I/O |
| دبوس 35 | RC1 — Digital I/O |
| دبوس 36 | RC2 — Digital I/O |
| دبوس 37 | RC3 — Digital I/O |
| دبوس 38 | RD0 — Digital I/O |
| دبوس 39 | RD1 — Digital I/O |
| دبوس 40 | RD2 — Digital I/O |
| دبوس 41 | RD3 — Digital I/O |
| دبوس 42 | RC4 — Digital I/O |
| دبوس 43 | RC5 — Digital I/O |
| دبوس 44 | RC6 — Digital I/O / TX |
| دبوس 45 | RC7 — Digital I/O / RX |
| دبوس 46 | RD4 — Digital I/O |
| دبوس 47 | RD5 — Digital I/O |
| دبوس 48 | RD6 — Digital I/O |
| دبوس 49 | RD7 — Digital I/O |
| دبوس 50 | VSS — Ground |
| دبوس 51 | VDD — Power supply + |
| دبوس 52 | RE0 — Digital I/O / analog input |
| دبوس 53 | RE1 — Digital I/O / analog input |
| دبوس 54 | RE2 — Digital I/O / analog input |
| دبوس 55 | RE3 — Digital I/O / analog input |
| دبوس 56 | RE4 — Digital I/O / analog input |
| دبوس 57 | RE5 — Digital I/O / analog input |
| دبوس 58 | RE6 — Digital I/O / analog input |
| دبوس 59 | RE7 — Digital I/O / analog input |
| دبوس 60 | VSS — Ground |
| دبوس 61 | VDD — Power supply + |
| دبوس 62 | RG4 — Digital I/O |
| دبوس 63 | RH0 — Digital I/O / analog input |
| دبوس 64 | RH1 — Digital I/O / analog input |
التطبيقات النموذجية
PIC18LF6627T-I/PT مناسب لـ 6 التطبيقs: Industrial Control Panels, Building Automation Gateways, Automotive Body & Infotainment Nodes, USB Peripherals and HIDs, Medical Monitoring Devices, Sensor Aggregators and IoT Edge Nodes.
Industrial Control Panels
The PIC18LF6627T-I/PT suits industrial control panels requiring up to 70 I/O lines for keypad, LCD, relay drivers and sensor inputs. Its 96 KB Flash hosts large protocol stacks (Modbus RTU, CANopen) plus HMI logic, while 4 KB RAM keeps message buffers and LCD framebuffers in chip. The 10-bit ADC with 16 channels reads multiple analog sensor signals simultaneously, and 2.0-5.5 V operation tolerates noisy 24 V-derived rails after regulation. Compared with smaller PIC18F variants, this part's memory headroom removes the need for an external EEPROM and simplifies BOM.
موصى به
Building Automation Gateways
Building automation gateways aggregate BACnet, Modbus or LonWorks traffic from HVAC, lighting and access-control subsystems. The PIC18LF6627T-I/PT's two enhanced USARTs handle RS-485 trunks at 1 Mbps while MSSP serves an I2C sensor bus. The 70 I/O drive LCD keypads, LEDs and dry-contact relays directly. Industrial -40C to +85C temperature grade supports unconditioned mechanical rooms. The wide 2.0-5.5 V supply lets the same board run from 3.3 V sensor power or 5 V relay power, simplifying dual-voltage designs.
موصى به
Automotive Body & Infotainment Nodes
Body control modules, mirror controllers, instrument-cluster nodes and infotainment sub-modules benefit from the PIC18LF6627T-I/PT's automotive cousin PIC18LF6627T-I/PT (industrial grade here, with AEC-Q100 grade available as PIC18F6627-I/PT). 70 I/O drive indicator LEDs, switches, motors and LIN/CAN buses. The CTMU charge-time measurement unit enables capacitive touch keys for door handles and infotainment sliders. 96 KB Flash stores bootloader plus full feature firmware; 4 KB RAM serves CAN/LIN mailbox buffers. Wide voltage tolerance handles cranking transients down to 4.0 V nominal.
موصى به
USB Peripherals and HIDs
The PIC18LF6627T-I/PT hosts USB Full-Speed device firmware stacks for HID-class peripherals such as custom keyboards, pointer devices, audio controls and measurement instruments. The on-chip USB SIE (where present on the LF66xx sub-family) plus 96 KB Flash holds USB stack, class descriptors and application logic. 70 I/O scan matrices up to 8x8 for keypads. The industrial temperature range keeps the part working in automotive and outdoor environments. Compared with smaller PIC16F variants, the LF6627 eliminates external RAM for descriptor buffering.
موصى به
Medical Monitoring Devices
Patient monitors, infusion pumps and portable diagnostic tools benefit from the PIC18LF6627T-I/PT's 96 KB Flash for protocol stacks (Bluetooth command sets, USB CDC, custom RF), 4 KB RAM for sample buffers, and 16-channel 10-bit ADC for multi-signal acquisition. The LF variant's 2.0 V rail supports single-cell Li-ion designs without boost converters. Industrial -40C to +85C operation covers hospital, ambulatory and home environments. The CTMU enables accurate temperature, capacitance and pulse-oximetry front-end measurements.
موصى به
Sensor Aggregators and IoT Edge Nodes
IoT edge nodes aggregate sensor traffic from I2C, SPI and analog sources and forward via UART, USB or radio. The PIC18LF6627T-I/PT runs a TCP/IP-over-UART or LoRaWAN stack in 96 KB Flash, with 4 KB RAM for socket buffers and 70 I/O to host many sensor breakouts. The 2.0-5.5 V range lets the node share a coin-cell or USB-derived supply. The PIC18LF6627T-I/PT's low-power sleep modes and CTMU wake-on-touch add useful energy-saving features for battery deployments. Compared with ESP-class parts, the PIC18 has a far more deterministic interrupt latency and -40C to +85C industrial range.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC18LF6627T-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC18LF6627-I/PT | PIC18LF6622T-I/PT | PIC18LF8722T-I/PT |
|---|---|---|---|---|
| Package | TQFP-64 (PT) | TQFP-64 (PT) - same | TQFP-64 (PT) - same | TQFP-80 (PT) - different, larger |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 96 KB | 96 KB | 64 KB | 128 KB |
| RAM | 4 KB | 4 KB | 3.8 KB | 3.8 KB |
| I/O Pins | 70 | 70 | 70 | 70 (80-pin package) |
| CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Supply Voltage | 2.0 - 5.5 V | 2.0 - 5.5 V | 2.0 - 5.5 V | 2.0 - 5.5 V |
| A/D Channels | 16 x 10-bit | 16 x 10-bit | 16 x 10-bit | 16 x 10-bit |
أبرز الفروقات
- Highest Flash density in the LF662x family (مقابلPIC18LF6622T-I/PT)
- Most I/O pins in a 64-pin TQFP (مقابلPIC18LF46K22)
- Industrial -40C to +85C temperature range with automotive cousin available (مقابلconsumer-grade PIC16F variants)
ملاحظات التصميم
Place a 100 nF ceramic decoupling capacitor as close as possible to every VDD/VSS pair (4 pairs total on this 64-pin TQFP). Add a single 10 uF bulk capacitor near the package. Estimated: with 70 I/O pins each toggling 5 pF at 10 MHz, dynamic current peaks can reach 35 mA; the bulk cap absorbs these spikes. Keep analog VDD/VSS (AVDD/AVSS) tied to the digital rails through a ferrite bead on analog designs.
Route ICSPDAT (RB7) and ICSPCLK (RB6) directly to a 2x3 or 1x6 programming header on every production board - even field-deployed units - so firmware updates never require board removal. Keep the trace length under 50 mm and surround them with ground. Route the 32.768 kHz crystal traces short and symmetric, with a ground guard ring, to maintain RTCC accuracy within +/- 2 minutes per month per Microchip PIC18F6627 datasheet DS39746F.
Do not leave MCLR floating - tie to VDD through a 4.7 kohm resistor or drive it from a dedicated supervisor. Always configure CONFIG registers (#pragma config) for the brown-out reset, watchdog timer and oscillator mode BEFORE the main code starts; missing CONFIG settings can lock the MCU on a bad oscillator at power-up. Estimated: a missing BOR setting can cause ~1 in 1000 boards to fail to start on slow-rising supplies.
When using the MSSP in I2C mode with bus speeds above 400 kHz, add 4.7 kohm pull-ups on SDA/SCL and keep total bus capacitance below 200 pF. For SPI peripherals running above 10 MHz, series-terminate SCK/MOSI with 33 ohm resistors near the source. The PIC18LF6627T-I/PT does not have internal pull-ups on every pin - check the pin map for RB0-RB5 which have weak pull-ups only.
معلومات الامتثال
RoHS compliant per Microchip product page; lead-free TQFP package. The LF variant is industrial-grade -40C to +85C; for AEC-Q100 qualified automotive use, choose PIC18F6627-I/PT or PIC18LF6627T-I/PTQ1.
