PIC16F1516-I/SO - 8-bit 20MHz XLP MCU, 14KB Flash 28-SOIC | Microchip
MPN: PIC16F1516-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.71 | $17.10 |
| 100 | $1.52 | $152.00 |
| 500 | $1.36 | $680.00 |
| 1,000 | $1.21 | $1,210.00 |
PIC16F1516-I/SO Overview
A microcontroller (MCU) is a single-chip computer containing a processor core, memory (Flash/RAM/EEPROM), and programmable peripherals. The PIC16F1516 sits within the Microchip 8-bit PIC16 enhanced mid-range hierarchy, which provides a 49-instruction set, 16-level hardware stack, and 200ns instruction execution time. Within the PIC16 family it is a member of the XLP nanoWatt lineage, sitting between smaller pin-count PIC16F150x parts and larger PIC16F1517/1518/1519 devices with more memory and I/O.
Key features include 17 channels of 10-bit ADC with voltage reference, two 8-bit timers (TMR0/TMR2), one 16-bit timer (TMR1), an extended watchdog timer (WDT), enhanced power-on/off-reset, programmable ultra-low-power brown-out reset (ULPBOR), and in-circuit serial programming (ICSP). It supports MI2C and SPI communication, has 25mA source/sink current capability per I/O, and includes in-circuit debug support. Internal 16MHz oscillator accuracy eliminates external clock components in most designs.
Typical applications include battery-powered sensor nodes, IoT edge devices, consumer appliances, HVAC controls, and industrial automation. The 28-SOIC footprint allows integration into standard through-hole-replacement layouts and breadboard-friendly prototypes while keeping assembly costs low.
When designing with this MCU, ensure decoupling capacitors are placed close to VDD/AVDD/VSS pins. For ADC accuracy applications, use separate analog and digital ground planes. Programming is supported via MPLAB X IDE with the XC8 compiler.
This page synthesizes distributor pricing, XLP-power drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1516-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 PIC16F1516-I/SO (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Timers, Communication.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1516T-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1516-E/SP
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC16F1516-E/ML
✅ Drop-In✓ In Stock
$1.21 / Unit
View Datasheet →PIC16F1516-I/ML
✅ Drop-In✓ In Stock
$1.49 / Unit
View Datasheet →PIC16F1513-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.02 / Unit
View Datasheet →PIC16F1516-I/SO Maximum Ratings & Electrical Characteristics
| Program Memory Type | Flash |
| Program Memory Size | 14KB (8K x 14 words) |
| RAM Size | 512 B |
| CPU Core | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions, 16 stack levels |
| Max CPU Speed | 20 MHz (200 ns instruction execution) |
| Internal Oscillator | 16 MHz |
| Supply Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit, 17 channels |
| Timers | 2x 8-bit (TMR0/TMR2), 1x 16-bit (TMR1) |
| Communication | MI2C, SPI |
| I/O Current | 25 mA source/sink per pin |
| Watchdog Timer | Extended WDT |
| Brown-Out Reset | Programmable Ultra Low-Power BOR (ULPBOR) |
| Programming/Debug | ICSP, In-Circuit Debug |
| Operating Temperature | -40C to +85C (industrial) |
| Package | 28-SOIC (SO) |
| Mounting Type | Surface Mount |
| Family | PIC® XLP™ 16F |
| RoHS Status | Compliant |
PIC16F1516-I/SO Pin Configuration
| Pin 1 | RA1/AN1/ICSPCLK — Digital I/O / Analog input / ICSP clock |
| Pin 2 | RA0/AN0 — Digital I/O / Analog input |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input |
| Pin 4 | RA3/AN3/Vref+ — Digital I/O / Analog input / ADC voltage reference positive |
| Pin 5 | RA4/AN4 — Digital I/O / Analog input |
| Pin 6 | RA5/AN5/SS — Digital I/O / Analog input / SPI slave select |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB0/AN12/INT — Digital I/O / Analog input / External interrupt |
| Pin 9 | RB1/AN10 — Digital I/O / Analog input |
| Pin 10 | RB2/AN8 — Digital I/O / Analog input |
| Pin 11 | RB3/AN9 — Digital I/O / Analog input |
| Pin 12 | RB4/AN11 — Digital I/O / Analog input |
| Pin 13 | RB5/AN13 — Digital I/O / Analog input |
| Pin 14 | RB6/ICSPDAT — Digital I/O / ICSP data |
| Pin 15 | RB7 — Digital I/O |
| Pin 16 | VDD — Positive supply voltage |
| Pin 17 | RA7/OSC1 — Digital I/O / Oscillator input |
| Pin 18 | RA6/OSC2 — Digital I/O / Oscillator output |
| Pin 19 | RC0 — Digital I/O |
| Pin 20 | RC1 — Digital I/O |
| Pin 21 | RC2 — Digital I/O |
| Pin 22 | RC3 — Digital I/O |
| Pin 23 | RC4 — Digital I/O |
| Pin 24 | RC5 — Digital I/O |
| Pin 25 | RC6 — Digital I/O |
| Pin 26 | RC7 — Digital I/O |
| Pin 27 | VSS — Ground reference |
| Pin 28 | MCLR/RA5/VPP — Master clear reset / Programming voltage |
Typical Applications
PIC16F1516-I/SO is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, Consumer Appliance Control Boards, HVAC Environmental Controllers, Industrial Automation I/O Modules, Automotive Body Electronics (Non-Safety), Medical Monitoring Peripherals.
Battery-Powered IoT Sensor Nodes
The PIC16F1516-I/SO fits battery-powered IoT sensor nodes because of its XLP nanoWatt technology, 2.3V to 5.5V supply range, and sub-microampere sleep currents per the Microchip datasheet 40001452F. The 14KB Flash supports BLE/Zigbee-like protocol stacks or LoRaWAN device drivers when paired with an external transceiver. The 17-channel 10-bit ADC reads battery voltage, temperature, and multiple analog sensor inputs without an external MUX. The 28-SOIC package sits comfortably on small sensor PCBs and survives -40C to +85C industrial environments.
Recommended
Consumer Appliance Control Boards
The PIC16F1516-I/SO serves consumer appliances (washing machines, microwave ovens, coffee makers) by combining 17 ADC channels for sensor readout, MI2C/SPI for display/keypad interfacing, and 25mA I/O drive to directly switch relays and triacs without external drivers. The 14KB Flash accommodates state-machine control logic and user-interface firmware, while the 28-SOIC industrial-grade package supports high-volume SMT assembly. The programmable ULPBOR handles noisy AC-derived rails safely.
Recommended
HVAC Environmental Controllers
The PIC16F1516-I/SO is suitable for HVAC controllers needing simultaneous temperature, humidity, and pressure sensing across 17 ADC channels. The two 8-bit timers (TMR0/TMR2) and 16-bit TMR1 support PWM-driven fan/valve actuators, while MI2C interfaces with environmental sensors and EEPROMs. Per the datasheet, the industrial temperature range -40C to +85C handles plenum and rooftop unit environments. The XLP sleep mode keeps standby power below energy-star limits during idle periods.
Recommended
Industrial Automation I/O Modules
The PIC16F1516-I/SO drives industrial digital and analog I/O modules where its 17 ADC inputs read 4-20mA transducers and its MI2C/SPI ports link to digital isolators and HMI displays. Per the datasheet, the 25mA I/O source/sink capability directly drives optocouplers and signal LEDs. The in-circuit debug (ICD) and ICSP interfaces accelerate field firmware updates via standard Microchip programmers, and the 14KB Flash stores protocol stacks for Modbus RTU or CANOpen with external transceivers.
Recommended
Automotive Body Electronics (Non-Safety)
While not AEC-Q100 qualified, the PIC16F1516-I/SO is used in non-safety automotive body modules (interior lighting, seat controllers, mirror adjusters) where its 17 ADC channels read switch positions and potentiometers, and its timers generate PWM for LED dimming and motor speed control. Per the datasheet, MI2C links to body control networks and the 28-SOIC package tolerates automotive underhood thermal ranges when paired with appropriate thermal management. Production automotive designs should migrate to AEC-Q100 qualified PIC16F counterparts.
Recommended
Medical Monitoring Peripherals
The PIC16F1516-I/SO fits medical peripherals (non-life-support) such as patient thermometers, pill dispensers, and pulse-oximetry displays. Its 10-bit ADC digitizes sensor outputs with sufficient resolution for heart-rate and SpO2 displays, while the XLP sleep modes extend battery life in ambulatory devices per the datasheet. MI2C links to OLED/LCD displays and SPI drives flash memory for patient-log storage. Industrial-grade reliability and the 28-SOIC footprint support cost-sensitive medical designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1516-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1516T-E/SO | PIC16F1516-E/SP | PIC16F1516-E/ML | PIC16F1516-I/ML | PIC16F1513-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-SPDIP | 28-QFN | 28-QFN | 28-SSOP |
| Flash Memory | 14KB | 14KB | 14KB | 14KB | 14KB | 7KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 512 B | 256 B |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Channels | 17 x 10-bit | 17 x 10-bit | 17 x 10-bit | 17 x 10-bit | 17 x 10-bit | 11 x 10-bit |
| 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 | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C |
| XLP nanoWatt | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- 17-channel 10-bit ADC with voltage reference (vs PIC16F1513-I/SS)
- 28-SOIC industrial-temperature footprint (vs PIC16F1516T-E/SO)
- 14KB Flash in PIC16 XLP family (vs PIC16F1509-I/SO)
Design Notes
Decoupling: place a 100nF ceramic capacitor as close as possible to each VDD/VSS pin pair. For ADC accuracy, add a 10uF bulk capacitor near the supply pin and consider a ferrite bead to isolate the analog AVDD rail from digital switching noise. The PIC16F1516's programmable ULPBOR can be tuned via configuration bits to match the minimum operating voltage of your power source, allowing deeper sleep modes without brown-out resets.
PCB layout: route the ICSPDAT and ICSPCLK signals with short, direct traces to a programming header or test pad. Keep analog ADC traces away from high-current digital traces (PWM outputs, relay drivers) to prevent digital switching noise coupling into the ADC. Provide a solid ground plane under the MCU and use separate analog/digital ground regions joined at a single point near the MCU's VSS pin.
MCLR pin: do not leave MCLR floating. Tie MCLR to VDD through a 10kΩ pull-up resistor, or configure it as a digital input via configuration bits. Floating MCLR causes erratic resets. When using ICSP, ensure the ICSPDAT/ICSPCLK lines are not loaded by external circuitry that prevents in-circuit programming. Verify that the configuration bits match the oscillator mode (internal 16MHz vs external crystal) before first programming.
Compliance Information
RoHS and lead-free per Microchip product page. Not AEC-Q100 qualified; choose PIC16F1516T-E/SO for extended temperature and review automotive-grade PIC16F counterparts for AEC-Q100 designs.
