PIC16F1718-I/SO - 8-bit MCU, 28KB Flash, 32MHz, 28-SOIC | Microchip
MPN: PIC16F1718-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.5 | $2.50 |
| 10 | $2.2 | $22.00 |
| 100 | $1.85 | $185.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.3 | $1,300.00 |
PIC16F1718-I/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O on one silicon die. The 8-bit MCU class targets cost-sensitive and power-constrained embedded designs; PIC microcontrollers use a modified Harvard RISC architecture, while 32-bit ARM Cortex-M devices target higher-throughput applications. PIC16F1718 sits in the mid-range PIC16 segment, positioned between the entry-level PIC10/12/16 baseline families and the high-performance PIC18/dsPIC/PIC32 lines, prioritizing analog integration and ultra-low power (XLP) consumption.
Key differentiating features include Peripheral Pin Select (PPS) for flexible signal routing, eXtreme Low Power (XLP) technology for battery-sensitive applications, and on-chip op-amps that eliminate external analog front-end components. The combination of 28KB Flash (16K × 14 words), 2KB RAM, 256B EEPROM, and 25 MIPS throughput at 32MHz supports a wide range of general-purpose embedded tasks.
The PIC16F1718 uses a 14-bit instruction word with a 2-stage pipeline, executes most instructions in one cycle, and offers up to 33 I/O pins with interrupt-on-change capability. The integrated op-amps can be configured as signal conditioning stages for sensor interfaces, while the NCO provides high-resolution frequency synthesis for lighting, motor control, or RF carrier generation without CPU intervention. EUSART, I²C, and SPI interfaces support standard serial communications.
Typical applications include sensor signal conditioning with on-chip op-amps, LED lighting with COG-driven high-resolution PWM, battery-powered IoT endpoints exploiting XLP sleep modes, closed-loop temperature or process control using ADC + DAC, and consumer appliance front-panel controllers. Designers value the wide 1.8V–5.5V VDD range for direct lithium-cell operation.
When designing with this part, observe VDD decoupling (100nF + bulk) within 5mm of the supply pin and follow Microchip's debug header recommendation for ICSP™ programming. The PPS feature must be configured in firmware before peripheral signals reach physical pins; failing to do so results in silent peripheral inactivity.
Drop-in alternatives for PIC16F1718-I/SO — 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/SO (same form factor and footprint) — differing in ADC, Package, Core Independent Peripherals, DAC, Operating Temperature Range.
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No drop-in alternatives available for this product.
Request AlternativesPIC16F1718-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (14-bit instruction word) |
| Family | PIC® XLP™ 16F |
| Program Memory (Flash) | 28KB (16K × 14 words) |
| Data RAM | 2KB |
| EEPROM | 256B |
| Maximum CPU Frequency | 32MHz |
| Instruction Throughput | Up to 25 MIPS |
| ADC | 10-bit |
| DAC | 5/8-bit |
| On-Chip Operational Amplifiers | Yes (integrated) |
| High-Speed Comparator | Yes |
| Operating Temperature Range | -40°C to +85°C (Industrial, -I suffix) |
| Package | 28-pin SOIC (SO) |
| Mounting Type | Surface Mount |
| Communication Interfaces | EUSART, I²C/SPI |
| Core Independent Peripherals | CLC, COG, NCO, ZCD |
| Peripheral Pin Select (PPS) | Yes |
| RoHS Status | Compliant |
PIC16F1718-I/SO Pin Configuration
| Pin 1 | RA0 — Bidirectional I/O / analog input / op-amp output |
| Pin 2 | RA1 — Bidirectional I/O / analog input / op-amp inverting input |
| Pin 3 | RA2 — Bidirectional I/O / analog input / op-amp non-inverting input |
| Pin 4 | RA3 — Bidirectional I/O / analog input / MCLR (reset) |
| Pin 5 | RA4 — Bidirectional I/O / analog input |
| Pin 6 | RA5 — Bidirectional I/O / analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RA7 — Bidirectional I/O / oscillator input |
| Pin 9 | RA6 — Bidirectional I/O / oscillator output |
| Pin 10 | RC0 — Bidirectional I/O / analog input |
| Pin 11 | RC1 — Bidirectional I/O / analog input |
| Pin 12 | RC2 — Bidirectional I/O / analog input |
| Pin 13 | RC3 — Bidirectional I/O / analog input |
| Pin 14 | RC4 — Bidirectional I/O |
| Pin 15 | RC5 — Bidirectional I/O |
| Pin 16 | RC6 — Bidirectional I/O / EUSART TX |
| Pin 17 | RC7 — Bidirectional I/O / EUSART RX |
| Pin 18 | VSS — Ground reference (second VSS) |
| Pin 19 | VDD — Positive supply voltage |
| Pin 20 | RB0 — Bidirectional I/O / interrupt-on-change |
| Pin 21 | RB1 — Bidirectional I/O / interrupt-on-change |
| Pin 22 | RB2 — Bidirectional I/O / interrupt-on-change |
| Pin 23 | RB3 — Bidirectional I/O / interrupt-on-change |
| Pin 24 | RB4 — Bidirectional I/O / interrupt-on-change |
| Pin 25 | RB5 — Bidirectional I/O / interrupt-on-change |
| Pin 26 | RB6 — Bidirectional I/O / ICSP clock |
| Pin 27 | RB7 — Bidirectional I/O / ICSP data |
| Pin 28 | VDD — Positive supply voltage (second VDD) |
Typical Applications
PIC16F1718-I/SO is suitable for 6 applications: Sensor Signal Conditioning Node, LED Lighting Controller, Battery-Powered IoT Endpoint, Closed-Loop Process Controller, Consumer Appliance Front Panel, Automotive Body Control Module.
Sensor Signal Conditioning Node
The PIC16F1718-I/SO's integrated operational amplifiers and 10-bit ADC make it ideal for analog sensor front-ends. The on-chip op-amps can be configured as non-inverting buffers for thermistor bridges or inverting amplifiers for photodiode current-to-voltage conversion, eliminating external analog stages. With 28KB Flash, firmware can implement digital filtering, calibration tables, and I²C/SPI sensor hub logic. The XLP nanoWatt sleep modes enable multi-year battery life in wireless sensor deployments.
Recommended
LED Lighting Controller
The PIC16F1718's Complementary Output Generator (COG), Numerically Controlled Oscillator (NCO), and high-resolution PWM modules suit advanced LED driver control. The COG can drive MOSFET half-bridges with programmable dead-band for high-frequency dimming, while the NCO synthesizes precise dithering frequencies. With 32MHz clock and PPS, designers can route multiple PWM channels to arbitrary pins. The 28-SOIC package provides ample thermal headroom for industrial lighting enclosures.
Recommended
Battery-Powered IoT Endpoint
The PIC16F1718-I/SO's XLP technology achieves typical sleep currents below 100nA, enabling coin-cell-powered IoT sensor endpoints with multi-year battery life. The wide VDD range supports direct lithium-thionyl-chloride (3.6V) and alkaline cell operation without external regulators. The 32MHz HFINTOSC allows fast wake-and-transmit cycles to minimize active energy. EUSART and I²C/SPI connect directly to radio modules and sensors, while the 2KB RAM buffers measurement packets during transmit bursts.
Recommended
Closed-Loop Process Controller
The integrated 10-bit ADC, 5/8-bit DAC, and high-speed comparator enable closed-loop control of temperature, pressure, or flow without external analog components. The op-amps can condition thermocouple or RTD signals directly, while the comparator triggers hardware over-current protection. With 28KB Flash, firmware can implement PID control loops, auto-tuning algorithms, and Modbus or HART communication stacks. Industrial -40°C to +85°C operation suits factory floor environments.
Recommended
Consumer Appliance Front Panel
The PIC16F1718-I/SO's PPS, EUSART, and PWM channels are well-suited for consumer appliance user interfaces with capacitive touch buttons, LED indicators, and rotary encoder inputs. The CLC (Configurable Logic Cell) implements glue logic in hardware, reducing firmware overhead and CPU wake events. With Peripheral Pin Select, button matrices and 7-segment displays can be remapped without PCB changes. The 28-SOIC package is easy to hand-prototype and rework.
Recommended
Automotive Body Control Module
The PIC16F1718-I/SO's robust peripherals and industrial temperature range suit body electronics subsystems including seat controllers, mirror adjusters, and interior lighting. The COG and NCO generate accurate PWM for motor speed control, while the on-chip op-amps condition current-sense signals for over-current protection. With Peripheral Pin Select, the same firmware can target different PCB layouts across product variants. Designers should pair with the AEC-Q100 qualified PIC16F1718-E/SO for production automotive deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1718-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1717-I/SO | PIC16F1719-I/SO | PIC16F1708-I/SO | PIC16F1619-I/SO | PIC18F25K50-E/SO | PIC16F15356-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 28KB | 28KB | 28KB | 28KB | 16KB | 32KB | 28KB |
| RAM | 2KB | 1KB | 2KB | 2KB | 1KB | 2KB | 2KB |
| Max CPU Frequency | 32MHz | 32MHz | 32MHz | 32MHz | 32MHz | 48MHz | 32MHz |
| On-Chip Op-Amps | Yes | Yes | Yes | Yes | No | No | No |
| Core Independent Peripherals (CLC/COG/NCO) | CLC + COG + NCO + ZCD | CLC + COG + NCO + ZCD | CLC + COG + NCO + ZCD | CLC + COG + NCO + ZCD | CLC + NCO + ZCD (no COG) | PWM/CCP only | CLC + COG + NCO + ZCD |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes | Yes (PPS) | Yes (enhanced PPS) |
| Operating Temperature | -40°C to +85°C (Industrial) | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +125°C (Extended) | -40°C to +85°C |
| XLP Low-Power Technology | Yes (nanoWatt sleep) | Yes | Yes | Yes | Yes | Yes (nanoWatt XLP) | Yes |
Key Differentiators
- Dual on-chip op-amps integrated (vs PIC16F1619-I/SO)
- Complete COG peripheral integration (vs PIC18F25K50-E/SO)
- 2KB RAM doubles PIC16F1717 buffer capacity (vs PIC16F1717-I/SO)
Design Notes
Place a 100nF decoupling capacitor within 5mm of each VDD pin (pins 19 and 28) plus a bulk 10uF tantalum or ceramic capacitor near the supply entry point. The PIC16F1718 has dual VDD/VSS pairs to reduce digital switching noise coupling into analog pins; route the analog VDD/VSS traces as star connections from a single ferrite-bead-isolated supply to minimize ADC reference errors. Estimated decoupling budget: 2 × 100nF + 1 × 10uF is sufficient for 32MHz operation at full I/O switching.
Configure Peripheral Pin Select (PPS) registers in firmware BEFORE relying on peripheral signals on physical pins. A common debugging pitfall is observing silent UART TX activity because PPS output mapping was not set. Always include PPS_unlock_sequence() in initialization code. Also note that PIC16F1718's on-chip op-amps require explicit configuration of the OPAxCON registers; leaving them in default reset state disables the analog signal path.
Route the 32MHz HFINTOSC trace away from analog ADC inputs and the on-chip op-amp inputs. Use a continuous ground plane under the IC with via stitching every 5mm around the perimeter. The 28-SOIC wide-body package (300-mil) accepts standard 1.27mm pitch SOIC footprints; ensure pad length is at least 1.5mm to support hand-rework. Avoid routing high-speed digital signals under the package to prevent capacitive coupling into the analog reference.
Compliance Information
RoHS and REACH compliant per Microchip product page. The -I (Industrial) suffix denotes -40°C to +85°C operating temperature; not AEC-Q100 qualified - select PIC16F1718-E/SO extended variant or PIC16F1718-H/SO automotive-grade for automotive deployments.
