PIC16F1718-I/SS - 8-Bit 32MHz MCU 28KB Flash 28-SSOP | Microchip
MPN: PIC16F1718-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.95 | $19.50 |
| 100 | $1.78 | $178.00 |
| 500 | $1.62 | $810.00 |
| 1,000 | $1.45 | $1,450.00 |
PIC16F1718-I/SS Overview
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip built around an 8-bit data path. It typically integrates a CPU, Flash program memory, RAM, EEPROM, and a rich set of peripherals (ADC, timers, communication interfaces, and increasingly analog blocks) into a single IC. MCUs sit under the broader hierarchy: microcontroller → embedded controller → semiconductor, and serve as the decision-making core in everything from consumer appliances to industrial sensor nodes.
Key features include 32MHz internal oscillator, 10-bit ADC with computation, two on-chip op-amps usable for signal conditioning, Peripheral Pin Select (PPS) that reassigns digital functions to any I/O, and four 16-bit timers. The 28-pin SSOP package is industry-standard and easy to hand-solder or reflow on 2-layer boards.
The PIC16F1718's Intelligent Analog integration is the standout architectural choice: rather than requiring external op-amps for sensor signal chains, designers can use the internal op-amps as buffers, gain stages, or comparators, reducing BOM cost and PCB area. PPS further increases routing flexibility in tight 28-pin layouts.
Typical applications include battery-powered sensor nodes, HVAC thermostat controls, consumer white goods, low-cost IoT endpoints, LED lighting controllers, and analog signal conditioning front-ends. The wide operating voltage range (1.8V–5.5V) suits both 3.3V and 5V rails.
When designing with this device, place the decoupling 100nF capacitor within 5mm of VDD, use PPS carefully to avoid peripheral conflicts, and leverage the on-chip op-amps to minimize external analog components for lowest total system cost.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16F1718-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 PIC16F1718-I/SS (same form factor and footprint) — differing in Package, DAC, ADC, Program Memory (Flash), Comparators.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1718-I/SO
✅ Drop-In✓ In Stock
$1.3 / Unit
View Datasheet →PIC16F1718-I/SP
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16F1719-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1717-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1716-I/SS
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →PIC16F15356-I/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16F1718-I/SS Maximum Ratings & Electrical Characteristics
| Core | PIC 8-bit |
| Family | PIC® XLP™ 16F1718 |
| Program Memory Size | 28 KB (16K x 14) Flash |
| RAM Size | 2 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| ADC | 10-bit |
| Package | 28-pin SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (Industrial, 'I') |
| On-Chip Op-Amps | Yes (2x) |
| Peripheral Pin Select (PPS) | Yes |
| Core Independent Peripherals | CLC, COG, NCO, Zero Cross Detect |
| Timers | 4x 16-bit |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16F1718-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — Analog input 0 / GPIO |
| Pin 2 | RA1/AN1 — Analog input 1 / GPIO |
| Pin 3 | RA2/AN2 — Analog input 2 / GPIO |
| Pin 4 | RA3/AN3 — Analog input 3 / GPIO |
| Pin 5 | RA4/AN4 — Analog input 4 / GPIO |
| Pin 6 | RA5/AN5 — Analog input 5 / GPIO |
| Pin 7 | RA6 — GPIO |
| Pin 8 | RA7 — GPIO |
| Pin 9 | VSS — Ground reference |
| Pin 10 | RB0 — GPIO / interrupt-on-change |
| Pin 11 | RB1 — GPIO / interrupt-on-change |
| Pin 12 | RB2 — GPIO / interrupt-on-change |
| Pin 13 | RB3 — GPIO / interrupt-on-change |
| Pin 14 | RB4 — GPIO / interrupt-on-change |
| Pin 15 | RB5 — GPIO / interrupt-on-change |
| Pin 16 | RB6 — GPIO / ICSPCLK |
| Pin 17 | RB7 — GPIO / ICSPDAT |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | RC0 — GPIO |
| Pin 21 | RC1 — GPIO |
| Pin 22 | RC2 — GPIO |
| Pin 23 | RC3 — GPIO |
| Pin 24 | RC4 — GPIO |
| Pin 25 | RC5 — GPIO |
| Pin 26 | RC6 — GPIO / TX |
| Pin 27 | RC7 — GPIO / RX |
| Pin 28 | VDD — Positive supply voltage |
Typical Applications
PIC16F1718-I/SS is suitable for 6 applications: Battery-Powered Sensor Node, HVAC Thermostat Control, Consumer White Goods Interface, Low-Cost IoT Endpoint, LED Lighting Controller, Analog Signal Conditioning Front-End.
Battery-Powered Sensor Node
The PIC16F1718-I/SS is well suited for battery-powered sensor nodes due to its XLP (eXtreme Low Power) architecture with sub-microamp sleep currents and 1.8V-5.5V operating range. The on-chip op-amps condition sensor signals without external analog ICs, while the 10-bit ADC digitizes temperature, light, or pressure readings. With 32 MHz performance and PPS, the MCU can wake, sample, transmit, and return to sleep within milliseconds, extending coin-cell life to years. Use the Core Independent Peripherals (CLC, NCO) to offload timing tasks and keep the CPU asleep. Compared to higher-power ARM Cortex-M0 parts, the PIC16F1718 achieves similar functionality at lower active current.
Recommended
HVAC Thermostat Control
For HVAC thermostat designs, the PIC16F1718-I/SS provides the analog integration needed for thermocouple or thermistor temperature sensing through its two on-chip op-amps. The 10-bit ADC with computation handles setpoint comparisons in hardware, reducing firmware load. Peripheral Pin Select lets engineers route PWM outputs to triac drivers and UART to a Wi-Fi/BLE module on any convenient GPIO. The industrial -40C to +85C temperature range covers attic and basement installations. Compared to discrete analog thermostats, the PIC16F1718 adds programmable scheduling and remote control with minimal component count.
Recommended
Consumer White Goods Interface
The PIC16F1718-I/SS drives user interfaces in washing machines, dishwashers, and microwave ovens, where its Core Independent Peripherals (CLC, COG) generate complementary PWM for display backlights and buzzer tones without CPU intervention. The 28-pin SSOP package fits compact UI boards, while 32 MHz performance handles button scanning, rotary encoder input, and LCD drive. The on-chip op-amps condition any analog user-feedback signals (e.g., moisture sensors). Compared to discrete logic IC solutions, the integrated MCU cuts BOM cost and simplifies firmware maintenance across product variants.
Recommended
Low-Cost IoT Endpoint
The PIC16F1718-I/SS serves as the host MCU in low-cost IoT endpoints paired with a Wi-Fi or Sub-GHz radio module. Its 28 KB Flash holds small communication stacks and sensor-processing code, while the 32 MHz CPU runs UART/SPI to the radio. PPS makes it easy to map communication peripherals to any GPIO, simplifying PCB layout. The XLP sleep mode (under 1 uA typical) keeps idle current negligible when the radio sleeps. The industrial temperature grade suits outdoor and industrial IoT enclosures. Compared to higher-end Cortex-M0 MCUs, the PIC16F1718 offers lower cost with adequate peripheral integration.
Recommended
LED Lighting Controller
The PIC16F1718-I/SS controls dimmable LED drivers via its PWM outputs, with the on-chip op-amps providing current-sense amplification in constant-current topologies. Zero Cross Detect (ZCD) enables phase-cut dimming for triac-compatible retrofit lamps. Peripheral Pin Select routes PWM channels to multiple LED strings without fixed pin constraints. The 32 MHz performance supports smooth logarithmic dimming curves. The wide 1.8V-5.5V supply range suits both 3.3V and 5V LED driver topologies. Compared to dedicated LED driver ICs, the PIC16F1718 enables user-customizable lighting scenes via firmware updates.
Recommended
Analog Signal Conditioning Front-End
The PIC16F1718-I/SS shines in analog front-end designs where its two on-chip op-amps, 10-bit ADC, and 8-bit DAC form a complete signal chain. Configure the op-amps as instrumentation amplifiers, filters, or buffers for strain gauges, photodiodes, or thermocouples. The Numerically Controlled Oscillator (NCO) generates precise frequency references for sensor excitation. PPS routes ADC triggers to timer outputs for synchronous sampling. Compared to discrete op-amp + ADC designs, the PIC16F1718 reduces PCB area by 50% and enables firmware-controlled calibration routines.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1718-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1718-I/SO | PIC16F1719-I/SS | PIC16F1717-I/SS | PIC16F1716-I/SS | PIC16F15356-I/SS |
|---|---|---|---|---|---|---|
| Package | SSOP-28 | SOIC-28 (wider body) | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Peripheral Pin Select | Yes | Yes | Yes | Yes | Yes | Yes |
| Core Independent Peripherals | CLC, COG, NCO, ZCD | CLC, COG, NCO, ZCD | CLC, COG, NCO, ZCD | CLC, COG, NCO, ZCD | Same set | CLC, NCO, ZCD |
| Maximum Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
Key Differentiators
- Larger Flash memory than 1716/1717 siblings (vs PIC16F1716-I/SS)
- Same SSOP-28 pinout as family siblings for layout reuse (vs PIC16F1719-I/SS)
- On-chip op-amps vs newer PIC16F153xx family (vs PIC16F15356-I/SS)
Design Notes
Place a 100 nF decoupling capacitor within 5 mm of each VDD pin (pins 19 and 28), and add a bulk 10 uF tantalum or ceramic capacitor on the main supply rail. The PIC16F1718-I/SS XLP sleep current is sub-microamp, but wake-up transients benefit from a low-ESR supply. Use a ferrite bead between the bulk cap and the IC if RF noise is present.
The SSOP-28 footprint is 0.65 mm pitch, requiring careful solder paste stencil design (laser-cut, 0.15 mm thickness recommended). Keep analog traces (RAx/ANx) short and routed away from digital switching signals to minimize ADC crosstalk. Place the ICSP header (RB6/RB7) at the board edge for in-circuit programming access.
Peripheral Pin Select must be configured in firmware before using remapped peripherals - unused PPS locks default pin assignments and causes silent peripheral failures. When migrating PIC16F1718 firmware to PIC16F1716/1717, verify the smaller Flash and RAM are sufficient; the linker will silently overflow if code exceeds memory. Industrial temperature grade ('-I') parts must be specified for outdoor or harsh environments.
The on-chip op-amps share pins with ADC inputs; configure op-amp output to high-impedance during ADC sampling to avoid signal disturbance. For thermocouple or low-level analog signal chains, use the on-chip op-amp as a buffer between the sensor and the ADC input pin to drive the sample-and-hold capacitor correctly.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified for automotive; choose a Q-grade variant for automotive use.
