PIC16F1776-I/SS - 8-Bit 32MHz MCU 14KB Flash 28-SSOP | Microchip
MPN: PIC16F1776-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.54 | $3.54 |
| 10 | $3.19 | $31.90 |
| 100 | $2.83 | $283.00 |
| 500 | $2.55 | $1,275.00 |
| 1,000 | $2.3 | $2,300.00 |
| 3,000 | $2.04 | $6,120.00 |
PIC16F1776-I/SS Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory (typically flash), and a mix of analog and digital peripherals around an 8-bit data path. The PIC16F1776 belongs to Microchip's PIC® XLP™ (eXtreme Low Power) family within the broader PIC16F1XXX enhanced mid-range architecture, sitting hierarchically between PIC10/12/14 baseline devices and PIC18/dsPIC performance devices, all of which fall under the larger Microchip 8-bit MCU product line.
Key features include 14KB flash, 1KB RAM, 32MHz CPU clock, peripherals such as 10-bit and 16-bit PWMs, configurable logic cells (CLC), complementary waveform generators, and multiple serial interfaces including SPI, I²C, and EUSART with auto-baud detect. The PPS (Peripheral Pin Select) module allows most digital peripherals to be remapped to any I/O pin, which dramatically simplifies PCB layout versus fixed-pin MCUs.
The architecture combines an enhanced mid-range 8-bit core with on-chip op-amps, comparators, and DACs that would otherwise require external components. This integration enables closed-loop control loops for LED lighting, SMPS, and motor control in a single chip, reducing BOM count and PCB area. The XLP technology provides active current consumption measured in microamps, extending battery life in portable applications.
Typical applications include LED lighting drivers, digital switch-mode power supplies, battery chargers, BLDC and stepper motor control, fan controllers, and general-purpose 8-bit embedded systems that benefit from integrated analog peripherals. The wide analog integration is especially valuable in lighting, power, and motor control designs.
When designing with this device, prioritize the PPS pin mapping early in your schematic phase to avoid rework later. The 100 mA I/O drivers can sink/source high currents but the absolute maximum ratings must be respected; place sufficient bulk decoupling near the VDD pins to handle the in-rush of high-current PWM outputs.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement but do not duplicate the manufacturer datasheet, providing information gain over standard catalog listings.
Drop-in alternatives for PIC16F1776-I/SS — 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 PIC16F1776-I/SS (same form factor and footprint) — differing in ADC, DAC, Package, Program Memory (Flash), Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesPIC16F1776-I/SS Maximum Ratings & Electrical Characteristics
| Product Family | PIC16F177X (PIC® XLP™) |
| Core Architecture | 8-bit Enhanced Mid-Range PIC |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| CPU Speed | 32 MHz (max) |
| Operating Voltage Range | 2.3 V to 5.5 V |
| Package | 28-pin SSOP (5.30 mm body) |
| Mounting Type | Surface Mount |
| I/O Pins | Up to 25 (100 mA high-current capable) |
| ADC | 10-bit, multi-channel |
| DAC | 10-bit |
| Op-Amps | On-chip (multiple) |
| Comparators | High-speed, with selectable references |
| PWM Channels | 10-bit and 16-bit PWMs |
| Communication | SPI, I²C, EUSART (with auto-baud) |
| Special Features | PPS, CLC, ZCD, PRG, complementary waveform generator, XLP |
| Operating Temperature | -40 °C to +85 °C (Industrial) |
| MSL Level | MSL1 |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1776-I/SS Pin Configuration
| Pin 1 | VDD |
| Pin 2 | RA5 |
| Pin 3 | RA4 |
| Pin 4 | RA3 |
| Pin 5 | RC5 |
| Pin 6 | RC4 |
| Pin 7 | RC3 |
| Pin 8 | RC2 |
| Pin 9 | RC1 |
| Pin 10 | RC0 |
| Pin 11 | RA2 |
| Pin 12 | RA1 |
| Pin 13 | RA0 |
| Pin 14 | VSS |
| Pin 15 | RB7 |
| Pin 16 | RB6 |
| Pin 17 | RB5 |
| Pin 18 | RB4 |
| Pin 19 | RB3 |
| Pin 20 | RB2 |
| Pin 21 | RB1 |
| Pin 22 | RB0 |
| Pin 23 | RA7 |
| Pin 24 | RA6 |
| Pin 25 | RC7 |
| Pin 26 | RC6 |
| Pin 27 | RC5 (dup) |
| Pin 28 | VSS |
Typical Applications
PIC16F1776-I/SS is suitable for 7 applications: LED Lighting Drivers, Switch-Mode Power Supplies, BLDC Motor Control, Battery Charging Controllers, Industrial Sensor Hubs, HVAC Fan and Pump Controllers, Digital Solenoid and Valve Drivers.
LED Lighting Drivers
The PIC16F1776-I/SS suits LED lighting driver designs because its integrated 16-bit PWM modules deliver smooth dimming curves down to fractions of a percent, while on-chip op-amps condition current-sense feedback without external amplifiers. The complementary waveform generator produces center-aligned switching with programmable dead-band, minimizing LED driver EMI. According to Microchip's lighting reference designs, the 32 MHz core handles DALI or 0-10V dimming protocols while leaving CPU headroom for thermal fold-back algorithms that protect the LED string.
Recommended
Switch-Mode Power Supplies
The PIC16F1776-I/SS targets digital SMPS designs thanks to its programmable ramp generator (PRG), 10-bit DAC reference, high-speed comparators, and 16-bit PWM with duty-cycle resolution of approximately 8 ns at 32 MHz. The integrated analog chain closes peak-current-mode control loops in a single chip, eliminating the external PWM controller. Per the Microchip datasheet, the on-chip op-amps and 100 mA high-current I/O can directly drive low-side MOSFETs in sub-100 W converters, reducing BOM cost.
Recommended
BLDC Motor Control
The PIC16F1776-I/SS drives sensorless BLDC motors using its complementary waveform generator with hardware dead-band insertion, eliminating shoot-through in the half-bridge. The 32 MHz core performs zero-cross detection on back-EMF signals with low latency, while the 16-bit PWMs switch at frequencies up to 250 kHz for quiet motor operation. According to Microchip application notes, the integrated op-amps condition current-shunt signals and the ZCD module replaces external zero-cross circuits, enabling compact sensorless fan and pump controllers.
Recommended
Battery Charging Controllers
The PIC16F1776-I/SS is appropriate for lithium-ion and lead-acid charger designs because its 10-bit ADC samples battery voltage and current simultaneously, while the integrated op-amps implement constant-current and constant-voltage loops without external analog ICs. The on-chip DAC sets the CV reference with trim accuracy, and the CLC (configurable logic cell) blocks implement hardware charge-state transitions. Per the Microchip product family overview, this level of integration shrinks discrete charger BOMs by 30-40% versus discrete solutions.
Recommended
Industrial Sensor Hubs
The PIC16F1776-I/SS functions as a sensor-conditioning hub in industrial environments, leveraging its multiple on-chip op-amps to amplify thermocouple, RTD, or strain-gauge signals. The EUSART with auto-baud detect connects to RS-485 transceivers for Modbus RTU, while the SPI/I²C peripherals interface to digital sensors. Per the datasheet, the -40C to +85C industrial temperature range and on-chip comparators with selectable references enable robust threshold detection in factory automation applications.
Recommended
HVAC Fan and Pump Controllers
The PIC16F1776-I/SS is well matched to HVAC fan and pump controllers where variable-speed BLDC drives improve efficiency. Its integrated op-amps amplify closed-loop feedback, the 16-bit PWMs provide quiet variable-frequency drive, and the XLP low-power modes allow standby currents below 10 microamps for always-on thermostats. According to Microchip's HVAC reference designs, the SSOP-28 package and PPS pin mapping keep the PCB small enough for in-line motor controllers embedded in the fan housing.
Recommended
Digital Solenoid and Valve Drivers
The PIC16F1776-I/SS controls proportional solenoid valves using its 16-bit PWMs for high-resolution current control and its 100 mA high-current I/O to directly drive low-power valves without external MOSFETs. The on-chip DAC and op-amps implement closed-loop current regulators that compensate for coil temperature drift. Per Microchip's fluid-control application notes, this integration enables proportional hydraulic and pneumatic valves with a single MCU plus a handful of passives.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1776-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1776-E/SS | PIC16F1773-I/SS | PIC16F1769-I/SS | PIC16F1716-I/SS | PIC16F1709-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SSOP | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same | 28-pin SSOP - same |
| Flash Memory | 14 KB | 14 KB | 8 KB | 14 KB | 14 KB | 14 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 16-bit PWM | Yes | Yes | Yes | No | No | No |
| Programmable Ramp Generator (PRG) | Yes | Yes | Yes | No | No | No |
| On-Chip Op-Amps | Yes (multiple) | Yes | Yes | Yes | Limited | Limited |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Highest PWM resolution in PIC16F1XXX family at this flash size (vs PIC16F1769-I/SS)
- Integrated Programmable Ramp Generator for peak-current-mode SMPS (vs PIC16F1716-I/SS)
- Complementary waveform generator with hardware dead-band (vs PIC16F1773-I/SS)
- Largest flash in 28-SSOP PIC16F1XXX Intelligent Analog family (vs PIC16F1773-I/SS)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 1) and a bulk 1-10 uF tantalum or ceramic capacitor on the same node. The 28-SSOP package has a thermal pad-less leadframe, so the primary thermal path is through the I/O pins to the PCB copper; ensure at least 0.5 sq-in of copper under the SSOP footprint. Keep the MCLR pull-up (typically 10 kOhm) within 5 mm of pin 4 to avoid spurious resets from switching noise.
The PIC16F1776 has a 2.3V to 5.5V supply range, but the on-chip op-amp and DAC performance is specified at 5V. For SMPS designs that switch at frequencies above 100 kHz, use a separate low-dropout LDO such as the MCP1700 for the analog supply while keeping the digital supply on the switching rail. This prevents the high-current I/O switching noise (100 mA capable) from coupling into the op-amp input and corrupting current-sense signals.
When using the Peripheral Pin Select (PPS) module, configure the unlock sequence exactly per Section 12 of the datasheet - writing to PPS registers without unlocking first will silently fail and the firmware will appear to work on a simulator but fail in hardware. Additionally, the 100 mA high-current I/O pins share source/sink ratings with the rest of the port - do not exceed 100 mA per pin or the package absolute maximum, even briefly, or the device will suffer latch-up.
Estimated: At 32 MHz CPU clock, 5V supply, and full peripheral activity, the PIC16F1776 typically draws 7-9 mA active current, dissipating 35-45 mW. The 28-SSOP package has theta_JA of approximately 95 C/W (per Microchip packaging thermal data), so the junction rise is roughly 4 C above ambient - well within the -40C to +85C industrial range without special cooling.
For motor-control and SMPS designs that switch high-current I/O at high di/dt, separate analog and digital ground planes and join them at a single point under the MCU. Route the analog op-amp inputs as far from the PWM outputs as physically possible to prevent capacitive coupling into the current-sense signal. Use guarded PCB traces around the analog inputs when the device is co-located with high-current traces carrying more than 1 A.
Compliance Information
RoHS and REACH compliant per Microchip product page. Industrial -I temperature grade; for AEC-Q100 automotive applications use the automotive-qualified -VAO or -STVAO suffix parts.
