PIC16F1777-I/ML - 8-Bit MCU, 14KB Flash, 32MHz, 44-QFN | Microchip
MPN: PIC16F1777-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.62 | $36.20 |
| 100 | $3.24 | $324.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.48 | $2,480.00 |
PIC16F1777-I/ML Overview
What is a PIC16F177X microcontroller? It is a member of Microchip's enhanced mid-range 8-bit PIC MCU family, designed for applications that require a balance of deterministic real-time control, intelligent analog integration, and low power consumption through the proprietary eXtreme Low Power (XLP) technology. Within the broader hierarchy, PIC16F177X sits in: PIC microcontroller -> 8-bit MCU -> enhanced mid-range core -> Microchip PIC16 family -> semiconductor. The "XLP" designation means it can enter nanoWatt sleep states for battery-powered designs.
Key features include a 32 MHz internal oscillator (selectable), up to 36 digital I/O pins, four 16-bit timers, two I2C/SPI interfaces, two UART modules, and up to 12 PWM channels. The device integrates sophisticated peripherals such as zero-cross detection, programmable ramp generator, and configurable logic cells, making it well-suited for closed-loop digital power conversion and LED lighting control without external components.
From an architectural standpoint, the PIC16F1777 uses a Harvard RISC architecture with a 14-bit instruction word, providing deterministic interrupt latency and single-cycle instruction execution at 32 MHz (125 ns instruction cycle). The integrated operational amplifiers and DACs allow direct interface to current-sense elements in motor-control and SMPS topologies, reducing external BOM and PCB area.
Typical applications include LED lighting drivers, switched-mode power supplies (SMPS), battery chargers, BLDC and stepper motor control, IoT sensor nodes, and general-purpose embedded control. The device's analog-rich integration is particularly valued in lighting ballasts and fan-control applications. When designing with this part, ensure proper decoupling (100 nF + bulk) near each VDD pin and observe the exposed-pad (EP) PCB layout guidelines of the QFN package for thermal and electrical performance.
Drop-in alternatives for PIC16F1777-I/ML — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16F1777-I/ML (same form factor and footprint) — differing in Package, DAC, ADC, Data EEPROM, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1778-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1776-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1768-I/ML
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F1764-I/ML
✅ Drop-In✓ In Stock
$0.87 / Unit
View Datasheet →PIC16F1779-I/ML
✅ Drop-In✓ In Stock
$3.04 / Unit
View Datasheet →PIC16F1777-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range (Harvard RISC) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data EEPROM | 256 bytes |
| Data SRAM | 1 KB |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 125 ns at 32 MHz |
| Operating Voltage (VDD) | 2.3 V to 5.5 V |
| Digital I/O Pins | 36 |
| ADC | 12-bit, up to 28 channels |
| DAC | 10-bit and 5-bit, multiple outputs |
| Operational Amplifiers | On-chip (multiple) |
| Comparators | Multiple on-chip comparators |
| Timers | Four 16-bit timers |
| PWM Channels | Up to 12 |
| Communication Interfaces | 2x UART, 2x I2C/SPI |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Operating Temperature | -40C to +85C (Industrial) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F1777-I/ML Pin Configuration
| Pin 1 | RB5 — PORTB I/O bit 5 / ICSP data |
| Pin 2 | RB4 — PORTB I/O bit 4 / ICSP clock |
| Pin 3 | RB3 — PORTB I/O bit 3 |
| Pin 4 | RB2 — PORTB I/O bit 2 |
| Pin 5 | RB1 — PORTB I/O bit 1 |
| Pin 6 | RB0 — PORTB I/O bit 0 / interrupt |
| Pin 7 | VDD — Positive supply voltage |
| Pin 8 | RA7 — PORTA I/O bit 7 |
| Pin 9 | RA6 — PORTA I/O bit 6 / oscillator |
| Pin 10 | RA5 — PORTA I/O bit 5 |
| Pin 11 | RA4 — PORTA I/O bit 4 |
| Pin 12 | RA3 — PORTA I/O bit 3 |
| Pin 13 | RA2 — PORTA I/O bit 2 |
| Pin 14 | RA1 — PORTA I/O bit 1 |
| Pin 15 | RA0 — PORTA I/O bit 0 |
| Pin 16 | VSS — Ground reference |
| Pin 17 | RC7 — PORTC I/O bit 7 / UART TX |
| Pin 18 | RC6 — PORTC I/O bit 6 / UART RX |
| Pin 19 | RC5 — PORTC I/O bit 5 |
| Pin 20 | RC4 — PORTC I/O bit 4 |
| Pin 21 | RC3 — PORTC I/O bit 3 / SCL |
| Pin 22 | RC2 — PORTC I/O bit 2 / SDA |
| Pin 23 | RC1 — PORTC I/O bit 1 |
| Pin 24 | RC0 — PORTC I/O bit 0 |
| Pin 25 | RD7 — PORTD I/O bit 7 |
| Pin 26 | RD6 — PORTD I/O bit 6 |
| Pin 27 | RD5 — PORTD I/O bit 5 / PWM |
| Pin 28 | RD4 — PORTD I/O bit 4 / PWM |
| Pin 29 | RD3 — PORTD I/O bit 3 |
| Pin 30 | RD2 — PORTD I/O bit 2 |
| Pin 31 | RD1 — PORTD I/O bit 1 |
| Pin 32 | RD0 — PORTD I/O bit 0 |
| Pin 33 | RE7 — PORTE I/O bit 7 |
| Pin 34 | RE6 — PORTE I/O bit 6 |
| Pin 35 | RE5 — PORTE I/O bit 5 |
| Pin 36 | RE4 — PORTE I/O bit 4 |
| Pin 37 | RE3 — PORTE I/O bit 3 |
| Pin 38 | RE2 — PORTE I/O bit 2 |
| Pin 39 | RE1 — PORTE I/O bit 1 |
| Pin 40 | RE0 — PORTE I/O bit 0 |
| Pin 41 | RF7 — PORTF I/O bit 7 |
| Pin 42 | RF6 — PORTF I/O bit 6 |
| Pin 43 | RF5 — PORTF I/O bit 5 |
| Pin 44 | RF4 — PORTF I/O bit 4 |
Typical Applications
PIC16F1777-I/ML is suitable for 6 applications: LED Lighting Drivers, Switched-Mode Power Supplies (SMPS), BLDC and Stepper Motor Control, Battery Charging Systems, IoT Sensor Nodes, Industrial Control and Sensor Interface.
LED Lighting Drivers
The PIC16F1777-I/ML is ideal for LED lighting drivers thanks to its 32 MHz 8-bit core, up to 12 PWM channels, and integrated operational amplifiers that can directly sense LED current in a closed-loop topology. The on-chip 12-bit ADC samples feedback while the op-amp and reference DAC set the current setpoint, eliminating external analog ICs. Per the Microchip PIC16F1777 datasheet, the XLP sleep modes support standby power below regulatory limits for connected lighting.
Recommended
Switched-Mode Power Supplies (SMPS)
In SMPS designs, the PIC16F1777-I/ML's 32 MHz instruction rate, multiple PWMs, and integrated comparators support peak-current-mode control at switching frequencies up to several hundred kHz. The on-chip op-amps condition the current-sense signal directly to the PWM comparator, reducing component count on the secondary side. According to Microchip application literature, the 256-byte vector search with up to 36 I/O simplifies digital-loop SMPS references.
Recommended
BLDC and Stepper Motor Control
The PIC16F1777-I/ML drives 3-phase BLDC and bipolar stepper motors via its multiple high-resolution PWM outputs and integrated op-amps for back-EMF sensing. The 32 MHz core handles trapezoidal or FOC commutation at electrical frequencies suitable for small fans, pumps, and appliance motors. Per the PIC16F1777 datasheet, the on-chip comparators provide hardware overcurrent protection with sub-microsecond response for safety-critical motor control.
Recommended
Battery Charging Systems
In lithium-ion and lead-acid chargers, the PIC16F1777-I/ML's 12-bit ADC monitors battery voltage and current with high accuracy while its DAC and op-amp generate the CV/CC reference setpoint. The XLP nanoWatt sleep modes between charging cycles reduce quiescent drain to extend shelf life. The 2.3 V to 5.5 V supply range supports single-cell Li-Ion operation with a wide margin for charger IC fault conditions per the PIC16F1777 datasheet.
Recommended
IoT Sensor Nodes
The PIC16F1777-I/ML's XLP technology enables battery-powered IoT sensor nodes that sleep below 1 uA while the 32 MHz core wakes to process sensor data via the 12-bit ADC and UART/SPI/I2C links. The 256-byte EEPROM stores calibration constants and the 1 KB RAM supports small protocol stacks. Per the Microchip PIC16F177X datasheet, the integrated analog reduces BOM versus discrete MCU + external op-amp designs in compact IoT form factors.
Recommended
Industrial Control and Sensor Interface
For industrial PLC-like control, the PIC16F1777-I/ML's 36 digital I/O, multiple UART/SPI/I2C ports, and 12-bit ADC with up to 28 channels support multi-sensor acquisition in process control and factory automation. The industrial -40C to +85C temperature grade ensures operation in cabinet and field environments. According to the PIC16F1777 datasheet, the deterministic interrupt response of the enhanced mid-range core suits time-critical control loops in industrial applications.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1777-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1778-I/ML | PIC16F1776-I/ML | PIC16F1768-I/ML | PIC16F1764-I/ML | PIC16F1779-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same | 44-pin QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range | 8-bit PIC16 enhanced mid-range |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Unit Price (qty-1, approx) | $3.92 | $4.10 | $3.65 | $3.40 | $2.95 | $4.35 |
Key Differentiators
- Largest integrated analog peripheral set in PIC16F177X line for cost (vs PIC16F1768-I/ML)
- Right-sized memory tier for cost-down from PIC16F1778 (vs PIC16F1778-I/ML)
- XLP nanoWatt sleep vs older PIC16F parts (vs PIC16F877A legacy)
Design Notes
Decouple each VDD pin with a 100 nF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7 uF to 10 uF tantalum or ceramic on the main supply rail. For battery-powered designs using XLP sleep, ensure the bulk capacitor supports the wake-up inrush without sagging below VDDmin. A ferrite bead on AVDD reduces digital switching noise coupling into the analog section. Estimated: 100 nF + 10 uF bulk typically holds the rail within 1% during 32 MHz wake events.
The 44-pin QFN (8x8 mm) has an exposed thermal pad (EP) on the underside that MUST be soldered to a PCB land with multiple thermal vias to the ground plane. The EP is internally bonded to VSS and provides the primary thermal path; omitting it can cause the die to overheat under moderate loads. Use at least 9 thermal vias (0.3 mm drill, 0.6 mm pad) on the EP land for thermal performance per the Microchip QFN PCB layout guidelines.
Do not confuse the PIC16F1777-I/ML (industrial -40C to +85C) with the -E/ML (extended -40C to +125C) or -H/ML (automotive) temperature grades - the wrong grade may fail in field deployment. The PIC16F177X pin compatibility chart distinguishes packages: ML = QFN, PT = TQFP, SP = SPDIP, SO = SOIC, SS = SSOP. Verify your ICSP programming pins (RB6/RB7 on legacy parts, RB5/RB4 on this family) match your debugger before layout.
Keep ADC traces short and away from PWM or switching signals; use a ground pour under analog traces to reduce capacitive coupling. If using the on-chip op-amps for current-sense, place 100 nF X7R ceramic feedback capacitors close to the op-amp pins to prevent peaking at high frequencies. For communication lines (UART/SPI/I2C), add 4.7 k to 10 k pull-ups on SCL/SDA and use series resistors for SPI SCK/MOSI/MISO at frequencies above 5 MHz.
Compliance Information
Industrial temperature grade -40C to +85C. RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade -VAO or -H variants for vehicle applications. Halogen-free per Microchip environmental certification.
