PIC16F1769-I/ML - 8-Bit MCU, 14KB Flash, 20-QFN | Microchip
MPN： PIC16F1769-I/ML ✓ 啟用中PIC16F1769-I/ML 概覽
A PIC microcontroller (Programmable Interface Controller) is a compact, low-cost, RISC-based 8-bit MCU family from Microchip Technology that integrates a CPU, Flash memory, RAM, EEPROM, and a rich set of peripherals (ADC, PWM, timers, communication ports) into a single chip. PIC MCUs sit within the broader category of microcontrollers -> microprocessors -> semiconductor ICs -> embedded computing devices, and are widely used in deterministic, low-power, and cost-sensitive embedded control.
Key features of the PIC16F1769-I/ML include CIP (Core Independent Peripherals) such as the 10-bit DAC with output steering, complementary output generator (COG), numerically controlled oscillator (NCO), configurable logic cells (CLC), zero-cross detect (ZCD), and op amps. The 20-pin QFN package and wide operating voltage (typically 1.8V-3.6V for the LF variant) make it suitable for space-constrained analog-rich designs.
The architecture uses Microchip's enhanced mid-range 16-bit instruction word with 8-bit data path, providing deterministic interrupt latency and code density. The XLP (eXtreme Low Power) feature set enables sleep currents in the nanoamp range, supporting battery-powered applications.
Typical applications include LED lighting control with smooth dimming, AC zero-cross dimmer circuits, closed-loop sensor conditioning, small motor control via complementary outputs, and IoT edge nodes requiring on-chip signal conditioning.
When designing with this part, note that the QFN-20 (4x4) package has an exposed thermal pad that must be soldered to the PCB ground pour for proper thermal and electrical performance. Use MPLAB X IDE and XC8 compiler for firmware development, and Microchip's PICkit or MPLAB SNAP programmer for in-circuit debugging.
This page synthesizes distributor pricing, drop-in same-package alternatives, application-focused design notes, and FAQs that go beyond the manufacturer datasheet. It targets engineers and buyers looking for an 8-bit MCU with intelligent analog and the compact 4x4 mm QFN footprint.
直接替換替代品，適用於 PIC16F1769-I/ML — 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： PIC16F1769-I/ML （相同外形與佔位） — 差異在於 Package, ADC, MSL Level, Operating Temperature, DAC.
PIC16F1769-E/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F1768-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1768-E/SS
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F1719-I/PT
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC16F1619-I/P
✅ 直接替換聯絡詢價
查看資料表 →PIC16F1769-I/ML 最大額定值與電氣特性
| Core | PIC16 enhanced mid-range 8-bit |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Max CPU Speed | 32 MHz (8 MIPS) |
| ADC | 10-bit |
| DAC | 10-bit |
| Op Amps | On-chip |
| Zero-Cross Detect | Yes (ZCD) |
| 封裝 | 20-QFN (4x4 mm) |
| 工作溫度 | -40C to +85C (industrial, /I suffix) |
| 腳位數 | 20 |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
PIC16F1769-I/ML 腳位配置
| 腳位 1 | RA0/AN0/C1IN+/ZCD — Analog input 0 / comparator input / zero-cross detect |
| 腳位 2 | RA1/AN1/C1IN-/ZCDIN — Analog input 1 / comparator reference |
| 腳位 3 | RA2/AN2/DACREF-/DACOUT1 — Analog input 2 / DAC negative reference / DAC output |
| 腳位 4 | RA3/AN3/VREF+/DACREF+ — Analog input 3 / positive voltage reference / DAC positive reference |
| 腳位 5 | RA4/AN4/T1G — Analog input 4 / Timer1 gate |
| 腳位 6 | RA5/AN5 — Analog input 5 / digital I/O |
| 腳位 7 | VSS — Ground reference |
| 腳位 8 | VDD — Positive supply voltage |
| 腳位 9 | RA6/OSC2 — Digital I/O / oscillator output |
| 腳位 10 | RA7/OSC1/CLKI — Digital I/O / oscillator input |
| 腳位 11 | RC0 — Digital I/O port C bit 0 |
| 腳位 12 | RC1 — Digital I/O port C bit 1 |
| 腳位 13 | RC2 — Digital I/O port C bit 2 |
| 腳位 14 | RC3 — Digital I/O port C bit 3 |
| 腳位 15 | RC4 — Digital I/O port C bit 4 |
| 腳位 16 | RC5 — Digital I/O port C bit 5 |
| 腳位 17 | RC6 — Digital I/O port C bit 6 |
| 腳位 18 | RC7 — Digital I/O port C bit 7 |
| 腳位 19 | RB6/ICSPCLK — Digital I/O / ICD clock |
| 腳位 20 | RB7/ICSPDAT — Digital I/O / ICD data |
典型應用
PIC16F1769-I/ML 適用於 6 應用s: AC Mains Zero-Cross LED Dimmer, Sensor Conditioning Front-End, Small BLDC / Brushed Motor Control, Smart Lighting Control Hub, Battery-Powered IoT Edge Sensor Node, Appliance User Interface Controller.
AC Mains Zero-Cross LED Dimmer
The PIC16F1769-I/ML is purpose-built for AC mains zero-cross dimming. Its on-chip zero-cross detect (ZCD) peripheral senses the AC line zero crossings without an external optocoupler, while the 10-bit DAC and complementary output generator (COG) drive a TRIAC or MOSFET with phase-controlled gate pulses. At 32 MHz / 8 MIPS the MCU closes a digital PID loop on LED current using the on-chip op amps for current-sense amplification. The 20-QFN (4x4 mm) package fits inside the small driver cavity of a typical E27/E14 bulb, and the industrial -40C to +85C temperature grade handles enclosed-fixture thermals. Compared with discrete zero-cross solutions, the 1769 collapses three ICs into one.
推薦
Sensor Conditioning Front-End
The PIC16F1769-I/ML integrates three on-chip op amps, a 10-bit ADC, and a 10-bit DAC, providing a complete analog front-end for bridge sensors, RTDs, thermocouples, or photodiodes. The op amps configure as instrumentation front-ends or charge amplifiers, the ADC digitizes the conditioned signal, and the DAC generates excitation or bias voltages. With 14 KB Flash the MCU runs calibration math and linearization routines directly, eliminating an external signal-chain ASIC. The 20-QFN footprint (4x4 mm) suits compact sensor PCBAs in industrial, medical, and IoT applications where board area is at a premium.
推薦
Small BLDC / Brushed Motor Control
The PIC16F1769-I/ML drives small brushless DC or brushed motors through its complementary output generator (COG) peripheral, which produces non-overlapping complementary PWM with dead-band control for direct half-bridge gate drive. The on-chip op amps sense motor current via shunt resistors, and the 32 MHz CPU executes field-oriented control or trapezoidal commutation in real time. The 10-bit DAC generates an analog speed-reference output. The 20-QFN (4x4) package is small enough for handheld power tools and small appliance motor boards where PCB area is severely constrained.
推薦
Smart Lighting Control Hub
The PIC16F1769-I/ML operates as the local intelligence in smart lighting hubs, reading pushbuttons or rotary encoders, driving addressable LED strings via SPI-driven LED driver ICs, and reporting status through a UART link to a host MCU or BLE module. The 14 KB Flash holds multi-scene lighting profiles and smooth-fade transition tables; the 1 KB RAM buffers command queues. With XLP (eXtreme Low Power) sleep modes drawing nanoamp-level standby currents, the part suits battery-powered or energy-harvesting wireless switches. The 4x4 mm QFN footprint fits inside European-style wall-switch back boxes.
推薦
Battery-Powered IoT Edge Sensor Node
The PIC16F1769-I/ML with XLP technology delivers nanoamp-level sleep currents, allowing years of battery life in periodic-measurement IoT nodes. The on-chip 10-bit ADC and op amps read analog sensors (temperature, light, gas), the 10-bit DAC can drive a sensor excitation or a low-side alert, and the 32 MHz MIPS performance wakes the core only long enough to take a reading, average it, and push it over a UART-bound radio. The 20-QFN 4x4 mm package suits coin-cell sensor PCBs, and the industrial temperature range supports outdoor deployments.
推薦
Appliance User Interface Controller
The PIC16F1769-I/ML handles capacitive touch, rotary encoder input, and PWM LED backlight drive in appliance user-interface boards. The CLC (Configurable Logic Cell) peripheral combines touch-sensing timer outputs and encoder signals without CPU wake-ups, reducing firmware complexity. The COG peripheral generates complementary PWM for LED backlight boost converters. With 14 KB Flash, the MCU stores multi-language UI strings and diagnostic routines. The 20-QFN (4x4 mm) package fits behind glass-front panels of washing machines, ovens, and induction cooktops.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16F1769-I/ML — 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 | PIC16F1769-E/ML | PIC16F1768-I/ML | PIC16F1619-I/P |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-QFN (4x4 mm) | 20-QFN (4x4 mm) - same | 20-QFN (4x4 mm) - same | 20-QFN (4x4 mm) - same |
| Flash Memory | 14 KB | 14 KB | 7 KB | 14 KB |
| RAM | 1 KB | 1 KB | 512 B | 1 KB |
| Max CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| On-chip Op Amps | Yes | Yes | Yes | Yes |
| DAC | 10-bit | 10-bit | 10-bit | 8-bit |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
主要差異化特點
- Largest Flash and RAM in PIC16F176X 20-pin QFN family (對比PIC16F1768-I/ML)
- Industrial temperature grade in the smallest 20-QFN variant (對比PIC16F1769-E/ML)
- On-chip intelligent analog integration reduces BOM (對比PIC16F1619-I/P)
設計說明
The PIC16F1769-I/ML QFN-20 (4x4 mm) package has its die exposed through the bottom thermal pad, which must be soldered to the PCB ground pour to meet datasheet thermal specifications. Estimated: for a 20-QFN 4x4 with 1 oz copper ground pour covering 50% of the pad area, theta_JA is approximately 50 C/W. At 32 MHz active current of typically 5 mA at 3.3V, power dissipation is ~16.5 mW, so the temperature rise above ambient is under 1 C, well within derating limits. Industrial -40C to +85C operation is preserved.
For the 20-QFN (4x4) package, design the PCB land pattern per Microchip package drawing and ensure the central thermal pad has at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch) to the internal ground plane. Place the 0.1 uF VDD decoupling capacitor within 3 mm of the VDD pin (pin 8). Keep the analog input traces (RA0-RA5) short and guarded with a ground pour to minimize ADC noise coupling from the switching digital lines on RC0-RC7.
Do not forget to configure the analog pins as analog (ANSELx register) before using them with the ADC or op amps; a digital input buffer on an analog channel introduces leakage and ADC offset errors. Ensure the ZCD peripheral is connected to a properly current-limited AC line sense circuit (typically via a 1 Mohm resistor + diode clamp) - the ZCD input is not high-voltage tolerant. When migrating code from PIC16F1768 to PIC16F1769, verify that RAM usage does not exceed 512 bytes unexpectedly since the 1768 has half the SRAM of the 1769.
合規資訊
RoHS and REACH compliant per Microchip product page. Industrial temperature grade only - not AEC-Q100 qualified; for automotive applications contact Microchip about the PIC16F1769-E/ML extended temperature variant.
