PIC16F1516-E/SP - 14KB Flash 8-bit MCU | Microchip | DIP-28
MPN: PIC16F1516-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.12 | $3.12 |
| 10 | $2.78 | $27.80 |
| 100 | $2.35 | $235.00 |
| 500 | $2.02 | $1,010.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC16F1516-E/SP Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, peripherals and I/O on one die. The PIC16F1516 belongs to the PIC16 family, which sits inside the broader 8-bit MCU category and is further classified as a low-power XLP device with an integrated 16 MHz internal oscillator. Within the system hierarchy, an MCU is a type of integrated circuit -> semiconductor -> active component, and PIC16F1516-E/SP specifically targets low-power embedded control tasks.
The PIC16F1516-E/SP features 17 channels of 10-bit ADC with voltage reference, two CCP modules, MI2C, SPI and EUSART with auto-baud, two 8-bit timers (TMR0/TMR2), one 16-bit timer (TMR1), an extended watchdog timer, 25 mA source/sink I/O, and an enhanced Power-On/Reset circuitry. It operates from 1.8 V to 5.5 V across the -40 °C to +125 °C industrial temperature range, making it well suited for mains-powered and battery-backed applications alike.
Architecturally, the enhanced mid-range core offers 49 instructions and 16 stack levels, achieving a 200 ns instruction cycle at 20 MHz. The self-read/write Flash and the internal 16 MHz oscillator minimize external component count and BOM cost, while the XLP designation confirms sleep currents suitable for energy-harvesting or battery-powered nodes.
Typical applications include industrial sensor interfaces, low-power IoT nodes, consumer white-goods control boards, general-purpose digital logic replacement, and educational/training platforms. The DIP-28 package also makes it a strong choice for prototype and breadboard development where through-hole soldering is preferred.
When designing with this part, ensure MPLAB X IDE and a compatible programmer/debugger (PICkit 3/4, MPLAB Snap, ICD 3/4) are available, and respect the supply-voltage and decoupling guidelines from the manufacturer datasheet to avoid in-circuit programming instability.
This page synthesizes distributor pricing, drop-in PIC16 alternatives, and practical design notes not found in the bare datasheet.
Drop-in alternatives for PIC16F1516-E/SP — 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-E/SP (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Timers, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1516-I/SP
✅ Drop-In✓ In Stock
$1.41 / Unit
View Datasheet →PIC16F1517-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1518-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1519-E/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1509-I/P
✅ Drop-In✓ In Stock
$1.43 / Unit
View Datasheet →PIC16F1458-I/P
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F1516-E/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit |
| Instruction Set | 49 instructions, 16 stack levels |
| Maximum CPU Frequency | 20 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Internal Oscillator | 16 MHz |
| ADC | 10-bit, 17 channels, with Voltage Reference |
| Communication Peripherals | MI2C, SPI, EUSART (auto-baud) |
| Timers | Two 8-bit (TMR0/TMR2) + one 16-bit (TMR1) |
| CCP Modules | 2 (Capture / Compare / PWM) |
| I/O Source/Sink Current | 25 mA |
| Operating Temperature | -40 °C to +125 °C (Extended, 'E') |
| Package | 28-pin SPDIP (0.300 inch / 7.62 mm) |
| Mounting Type | Through-Hole (DIP) |
| RoHS Status | Compliant |
PIC16F1516-E/SP Pin Configuration
| Pin 1 | RA3/AN3/Vref+ — Port A bit 3 / ADC ch3 / ADC positive reference |
| Pin 2 | RA4/AN4 — Port A bit 4 / ADC ch4 |
| Pin 3 | RA5/AN5 — Port A bit 5 / ADC ch5 |
| Pin 4 | RA6/OSC2 — Port A bit 6 / crystal oscillator output |
| Pin 5 | RA7/OSC1 — Port A bit 7 / crystal oscillator input |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VDD — Positive supply (1.8 V to 5.5 V) |
| Pin 8 | RB0/AN12/INT — Port B bit 0 / ADC ch12 / external interrupt |
| Pin 9 | RB1/AN10 — Port B bit 1 / ADC ch10 |
| Pin 10 | RB2/AN8 — Port B bit 2 / ADC ch8 |
| Pin 11 | RB3/AN9 — Port B bit 3 / ADC ch9 |
| Pin 12 | RB4/AN11 — Port B bit 4 / ADC ch11 |
| Pin 13 | RB5/AN13 — Port B bit 5 / ADC ch13 |
| Pin 14 | RB6/ICSPCLK — Port B bit 6 / ICSP clock |
| Pin 15 | RB7/ICSPDAT — Port B bit 7 / ICSP data |
| Pin 16 | RC0/SOSCO — Port C bit 0 / secondary oscillator output |
| Pin 17 | RC1/SOSCI — Port C bit 1 / secondary oscillator input |
| Pin 18 | RC2/AN14 — Port C bit 2 / ADC ch14 |
| Pin 19 | RC3/AN15 — Port C bit 3 / ADC ch15 |
| Pin 20 | RC4/AN16 — Port C bit 4 / ADC ch16 |
| Pin 21 | RC5/AN17 — Port C bit 5 / ADC ch17 |
| Pin 22 | RC6/TX/CK — Port C bit 6 / EUSART TX / clock |
| Pin 23 | RC7/RX/DT — Port C bit 7 / EUSART RX / data |
| Pin 24 | RD0 — Port D bit 0 |
| Pin 25 | RD1 — Port D bit 1 |
| Pin 26 | RD2 — Port D bit 2 |
| Pin 27 | RD3 — Port D bit 3 |
| Pin 28 | RE3/MCLR — Port E bit 3 / Master Clear (reset, active-low) |
Typical Applications
PIC16F1516-E/SP is suitable for 6 applications: Industrial Sensor Interface Board, Battery-Powered IoT Edge Node, Consumer White Goods Control Board, Educational / Training Prototyping Platform, Automotive Aftermarket Accessory Module, General Digital Logic Replacement / Glue Logic.
Industrial Sensor Interface Board
The PIC16F1516-E/SP fits industrial sensor interface boards because it offers 17 channels of 10-bit ADC with selectable voltage reference, letting a single MCU read multiple analog sensor bridges in parallel. Its 1.8 V to 5.5 V supply window accepts both 3.3 V and 24 V-derived 5 V rails typical on factory-floor I/O modules. The two CCP modules provide PWM excitation for ratiometric sensors and servo control outputs, while MI2C and SPI connect to EEPROM or to higher-level PLC cards. With 25 mA I/O source/sink the MCU can directly drive indicator LEDs, opto-isolators and small relays without external buffers, simplifying the BOM. The -40 °C to +125 °C extended temperature range covers unheated enclosures in cold-storage or outdoor cabinets, and the 28-pin SPDIP package remains easy to hand-prototype or replace during field service calls.
Recommended
Battery-Powered IoT Edge Node
For battery-powered IoT edge nodes the PIC16F1516-E/SP is a strong fit thanks to its XLP (eXtreme Low Power) technology and the internal 16 MHz oscillator, which removes the need for an external crystal that would otherwise consume quiescent current. The 14 KB Flash comfortably holds small communication stacks such as Modbus RTU or lightweight sensor-frame formats, while 512 B of SRAM is adequate for periodic sampling with sleep in between. The device operates from 1.8 V to 5.5 V, so a pair of AA cells or a single LiSOCl2 cell can power the node directly, and the EUSART supports low-power transceivers such as Sub-GHz or BLE modules through a simple UART command interface. The 200 ns instruction cycle at 20 MHz keeps wake-and-transmit windows short, which is critical for sub-microamp sleep current targets on multi-year battery life designs.
Recommended
Consumer White Goods Control Board
The PIC16F1516-E/SP suits consumer white-goods control boards (washing machines, dishwashers, refrigerators) where it must coordinate user keypads, LCD or LED displays, motor drivers and safety sensors. Its 17 ADC channels read NTC temperature sensors, water-level probes and door-switch contact status, while the two CCP modules generate PWM for triac-fired heater control and brushless-motor commutation timing. The 25 mA I/O source/sink current is sufficient to drive LED status rows, relays and buzzer transistors without external buffers, reducing BOM cost. The wide 1.8 V to 5.5 V range tolerates rectified mains-derived 5 V rails with significant ripple. Because the part ships in a 28-pin SPDIP, assembly lines that prefer through-hole serviceability for service technicians can hand-swap the MCU during warranty repairs without reflow rework.
Recommended
Educational / Training Prototyping Platform
The PIC16F1516-E/SP is a near-ideal training platform because the 28-pin SPDIP package fits every breadboard and IC socket in a teaching lab, and Microchip's MPLAB X IDE, XC8 compiler and PICkit debugger ecosystem are free for students. With 14 KB of Flash, the MCU can run C-language exercises on ADC sampling, UART printf debugging, I2C EEPROM reads and SPI display writes, all of which are core competencies for entry-level embedded engineers. The 1.8 V to 5.5 V supply range lets students experiment with both 3.3 V sensors and 5 V actuators from a single board, while the internal 16 MHz oscillator avoids the frequent classroom pitfall of crystal loading issues. The 200 ns instruction cycle at 20 MHz is fast enough to demonstrate real-time control loops in motor or LED dimming labs, and the 25 mA I/O source/sink drives LEDs, small DC fans and piezo buzzers directly.
Recommended
Automotive Aftermarket Accessory Module
For automotive aftermarket accessory modules such as lighting controllers, alarm add-ons and gauge-driver boards, the PIC16F1516-E/SP provides 17 ADC channels for voltage and current sensing, plus the 1.8 V to 5.5 V supply range tolerates the voltage drop and ripple of a 12 V vehicle rail post regulator. The two CCP modules support PWM-driven LED dimming and motor speed control with hardware-managed edges that free the CPU for other tasks. Its -40 °C to +125 °C extended temperature range covers interior cabin and engine-bay-adjacent enclosures. The 25 mA I/O sink current directly drives low-side FET gates and relay coils, simplifying the discrete interface. Note that for OEM automotive designs AEC-Q100 qualified PIC MCUs (such as PIC16F1517-E/SO-VAO) should be preferred, but for hobby and aftermarket use the standard extended-grade part is acceptable.
Recommended
General Digital Logic Replacement / Glue Logic
The PIC16F1516-E/SP can replace racks of 74-series glue logic on legacy boards by sequencing a handful of 5 V signals, generating timed pulses and reading parallel inputs in software. With 25 mA I/O source/sink the MCU can directly drive 5 V CMOS and TTL inputs without pull-ups, and the 25 I/O pins across two ports comfortably handle 5-to-10 line glue-logic replacements. The two CCP modules and three timers (TMR0, TMR1, TMR2) reproduce monostable, astable and quadrature-decoder behaviors previously implemented with discrete gates. Because code revisions cost pennies, designs that would have required multiple PCB spins with 74HC chips can converge in a single spin, and the 1.8 V to 5.5 V supply range lets the part work directly on legacy 5 V or modern 3.3 V logic rails. Finally, the 28-pin SPDIP package keeps hand-prototyping quick for small-batch retrofits.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1516-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1516-I/SP | PIC16F1517-E/SP | PIC16F1518-E/SP | PIC16F1519-E/SP | PIC16F1509-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin PDIP - same |
| Program Memory (Flash) | 14 KB | 14 KB (same) | 14 KB (same) | 16 KB (+14%) | 32 KB (+128%) | 8 KB (-43%) |
| Data SRAM | 512 bytes | 512 bytes (same) | 1 KB (+100%) | 1 KB (+100%) | 2 KB (+300%) | 512 bytes (same) |
| Data EEPROM | 256 bytes | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) | 256 bytes (same) |
| ADC Channels | 17 ch / 10-bit | 17 ch / 10-bit (same) | 24 ch / 10-bit (+41%) | 24 ch / 10-bit (+41%) | 24 ch / 10-bit (+41%) | 12 ch / 10-bit (-29%) |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended, same) | -40C to +125C (Extended, same) | -40C to +125C (Extended, same) | -40C to +85C (Industrial) |
| Maximum CPU Frequency | 20 MHz | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) |
Key Differentiators
- Extended -40C to +125C temperature grade in SPDIP-28 (vs PIC16F1516-I/SP)
- More Flash than the lower-tier PIC16F1509 family (vs PIC16F1509-I/P)
- 17 ADC channels in a 28-pin DIP (vs PIC16F1458-I/P)
Design Notes
The PIC16F1516-E/SP has a wide VDD range of 1.8 V to 5.5 V, but the brown-out and ADC accuracy specifications differ at the extremes. Always place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 7), and add a bulk capacitor of at least 10 uF near the regulator. For ICSP programming reliability, keep the VDD rise time under the datasheet-specified maximum (typically 1 V/ms during power-up), and avoid RC ramps longer than that by selecting regulator soft-start components accordingly.
On a 28-pin SPDIP layout, route the ICSP lines (RB6/ICSPCLK and RB7/ICSPDAT) so that an in-circuit programming header can be accessed without removing the MCU. Keep the MCLR pin (pin 28, RE3) tied to VDD through a 10 kohm resistor and a 100 nF capacitor to ground for clean resets, and place the ICSP header close enough that the 4.7 kohm ICSP pull-up on MCLR is not disturbed. Avoid routing high-current switching signals adjacent to the oscillator pins (RA6/OSC2, RA7/OSC1) or to the ADC reference pins (RA3, VDD, VSS) to prevent injected noise.
A common mistake is leaving the configuration bits at the default internal oscillator setting while populating an external crystal footprint - the device will appear to be 'dead' if the oscillator mode is wrong. Another pitfall is using RE3/MCLR as a regular GPIO without the configuration bit set: RE3 is input-only and is normally the MCLR pin. Also note that the PIC16F1516-E/SP does NOT have a USB peripheral; for USB designs the PIC16F145x family is required. Always read the CONFIG word register settings from the datasheet's CONFIGURATION WORD section before locking firmware.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - select AEC-Q100 qualified PIC16F151x automotive variants (e.g., PIC16F1517-E/SOVAO) for OEM automotive designs. Halogen-free status not explicitly confirmed in the verified data and is marked unknown.
