PIC16F1614-I/SL - 8-Bit 32MHz MCU 7KB Flash | Microchip
MPN: PIC16F1614-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.55 | $1.55 |
| 10 | $1.39 | $13.90 |
| 100 | $1.21 | $121.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.92 | $920.00 |
PIC16F1614-I/SL Overview
An 8-bit flash microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates an 8-bit CPU, non-volatile flash program memory, volatile SRAM, and a configurable peripheral set into a single IC. Within the broader hierarchy, 8-bit MCUs sit below 16-bit and 32-bit MCUs in computational throughput, but excel in deterministic real-time control, ultra-low power operation (the PIC16 XLP family is engineered for nanoWatt standby currents), and BOM cost minimization. They are the dominant choice for sensor nodes, motor control loops, user-interface handling, and battery-powered devices where code density and predictability outweigh raw MIPS.
Key features include 32MHz internal oscillator operation, 10-bit ADC with computation, 24-bit Signal Measurement Timer (SMT) for precise time-of-flight and edge counting, Zero-Cross Detect for AC line synchronization, Configurable Logic Cell, Complementary Output Generator, and nanoWatt XLP power management. The 14-pin SOIC (SL) package is a JEDEC-standard 3.90mm-wide surface-mount footprint that is breadboard-friendly and reflow-solderable, suitable for both prototyping and high-volume production.
The PIC16F1614 uses a 14-bit modified Harvard RISC architecture with a 16-level hardware stack, single-cycle hardware multiply, and C-compiler-friendly instruction set. The XLP nanoWatt technology delivers sub-microamp sleep modes enabling multi-year battery life in IoT edge nodes, while the integrated SMT 24-bit timer and CLC permit hardware-level signal processing without CPU intervention, freeing the core for system-level logic.
Typical applications include small DC and stepper motor control (BLDC, brushed DC), fan control, TRIAC dimming with ZCD, sensor signal conditioning, appliance controls, LED lighting drivers, IoT edge nodes, and general-purpose embedded control. The industrial-grade -40C to +85C temperature range supports factory and outdoor deployments.
When designing with this device, allocate sufficient code-space headroom (5-10% free flash for field updates), provide adequate Vdd decoupling per the datasheet reference circuit, and verify that the chosen CCP/COG/SMT peripheral combination fits the application timeline within the 32MHz instruction budget.
This page synthesizes distributor pricing from DigiKey/Mouser/LCSC, parametric drop-in alternatives in the same SOIC-14 footprint, and practical design notes that go beyond what is reprinted on standard catalog pages.
Drop-in alternatives for PIC16F1614-I/SL — 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 PIC16F1614-I/SL (same form factor and footprint) — differing in Package, ADC, Core, Operating Temperature, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1614-E/SL
✅ Drop-In✓ In Stock
$1.2 / Unit
View Datasheet →PIC16F1575-I/SL
✅ Drop-In✓ In Stock
$0.93 / Unit
View Datasheet →PIC16F15213-I/SN
✅ Drop-In✓ In Stock
$0.49 / Unit
View Datasheet →PIC16F15225-I/SL
✅ Drop-In✓ In Stock
$0.6 / Unit
View Datasheet →PIC16F1614-I/SL Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC® XLP™ 16F |
| Core Processor | PIC 8-bit |
| Core Size | 8-Bit |
| Program Memory Size | 7KB (4K x 14) FLASH |
| RAM Size | 512 bytes |
| Maximum CPU Speed | 32 MHz |
| Package | 14-SOIC (3.90mm Width, SL) |
| Pin Count | 14 |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial -I grade) |
| ADC | 10-bit |
| Data Converters | A/D 10-bit |
| Oscillator Type | Internal |
| Peripherals | Brown-out Detect, CCP, CLC, COG, POR, PWM, WDT, ZCD, SMT |
| Program Memory Type | FLASH |
| RoHS Status | Compliant |
PIC16F1614-I/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / alternate function per datasheet |
| Pin 2 | RA4 — Bidirectional I/O / alternate function per datasheet |
| Pin 3 | RA3 — Bidirectional I/O / alternate function per datasheet |
| Pin 4 | RC5 — Bidirectional I/O / alternate function per datasheet |
| Pin 5 | RC4 — Bidirectional I/O / alternate function per datasheet |
| Pin 6 | RC3 — Bidirectional I/O / alternate function per datasheet |
| Pin 7 | RC2 — Bidirectional I/O / alternate function per datasheet |
| Pin 8 | RC1 — Bidirectional I/O / alternate function per datasheet |
| Pin 9 | RC0 — Bidirectional I/O / alternate function per datasheet |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | RA2 — Bidirectional I/O / alternate function per datasheet |
| Pin 13 | RA1 — Bidirectional I/O / alternate function per datasheet |
| Pin 14 | RA0 — Bidirectional I/O / alternate function per datasheet |
Typical Applications
PIC16F1614-I/SL is suitable for 6 applications: Small Motor Control (Brushed DC / BLDC), AC Line TRIAC Dimming with ZCD, Fan Control (PWM + Tachometer), Appliance Sensor Conditioning, IoT Edge Sensor Nodes (Battery-Powered), LED Lighting Drivers.
Small Motor Control (Brushed DC / BLDC)
The PIC16F1614-I/SL fits small DC motor control because the integrated Complementary Output Generator (COG) provides hardware-level complementary PWM generation with programmable dead-band control, eliminating CPU cycles spent toggling GPIO. At 32MHz the core executes a sensorless trapezoidal commutation loop inside the 32kHz PWM window with margin to spare. The 24-bit SMT captures back-EMF edges with sub-microsecond accuracy, enabling closed-loop RPM measurement without external timers. Industrial -40C to +85C operation covers appliance and factory environments; the SOIC-14 footprint reflows cleanly on standard 4-layer motor-control PCBs.
Recommended
AC Line TRIAC Dimming with ZCD
The PIC16F1614-I/SL is ideal for AC-line TRIAC dimming because the integrated Zero-Cross Detect (ZCD) peripheral senses mains zero crossings directly from a 100k resistor divider, producing an interrupt-accurate phase reference without external comparator ICs. The Configurable Logic Cell (CLC) then combines ZCD events and timer outputs to generate the variable-phase TRIAC gate pulse. At 7KB flash the device fits phase-control, leading-edge and trailing-edge dim algorithms plus user-interface debounce. The industrial temperature grade handles enclosed luminaires, and the SOIC-14 footprint fits the small PCB area inside lamp housings.
Recommended
Fan Control (PWM + Tachometer)
The PIC16F1614-I/SL is well-suited to brushless-DC fan speed control because the Capture/Compare/PWM (CCP) module generates the 25kHz PWM drive signal while the 24-bit SMT measures the tachometer feedback period in hardware, offloading the CPU. The CLC can be wired to combine an over-current comparator with PWM output for hardware-level current limiting. With 512B SRAM and 7KB flash the device fits PID loop plus lookup tables for fan curves. Industrial -40C to +85C operation handles server-fan and appliance environments.
Recommended
Appliance Sensor Conditioning
The PIC16F1614-I/SL handles sensor conditioning for white goods because the 10-bit ADC with hardware Computation averages multiple samples and applies thresholds in hardware, reducing CPU load. The CLC routes analog-comparator outputs to timer captures, allowing capacitive touch or NTC temperature sensing without software polling. At 32MHz the core still has bandwidth for user-interface button handling, buzzer PWM and serial diagnostics. The wide -40C to +85C industrial range covers refrigerator and dishwasher compartments.
Recommended
IoT Edge Sensor Nodes (Battery-Powered)
The PIC16F1614-I/SL suits battery-powered IoT edge nodes because the nanoWatt XLP technology delivers sub-microamp sleep currents, enabling multi-year coin-cell operation. The 24-bit SMT measures low-frequency sensor wake-up events while the CPU remains asleep. With 7KB flash the device fits over-the-air command handling plus sensor-read code, while the 32MHz HFINTOSC eliminates external crystals to minimize BOM cost. Industrial temperature and SOIC-14 reflow compatibility suit outdoor sensor enclosures.
Recommended
LED Lighting Drivers
The PIC16F1614-I/SL fits addressable LED drivers and small-form-factor lighting controllers because the COG provides hardware-level complementary outputs with programmable dead-band, ideal for synchronous buck/boost LED driver topologies. The 16-bit PWM resolution from the CCP module enables smooth dimming. At 7KB flash the device fits DMX-style protocol parsing plus per-channel PWM mapping. Industrial -40C to +85C handles commercial-luminaire thermal envelopes, and the SOIC-14 footprint reflows easily.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1614-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1614-E/SL | PIC16F1613-I/P | PIC16F1575-I/SL | PIC16F1574-I/ST |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC (SL, 3.90mm) | 14-SOIC (SL) - same | 14-PDIP (P) - different footprint | 14-SOIC (SL) - same | 14-TSSOP (ST) - different footprint |
| Flash Memory | 7KB (4K x 14) | 7KB | 7KB | 14KB | 7KB |
| SRAM | 512 B | 512 B | 512 B | 1 KB | 512 B |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| 24-bit SMT | Yes | Yes | No | No | No |
| ZCD Peripheral | Yes | Yes | No | No | No |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| RoHS Compliance | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated 24-bit Signal Measurement Timer (SMT) (vs PIC16F1613-I/P)
- Zero-Cross Detect (ZCD) peripheral for AC line sync (vs PIC16F1575-I/SL)
- Complementary Output Generator (COG) with dead-band (vs PIC16F1574-I/ST)
- nanoWatt XLP technology for battery applications (vs PIC16F15213-I/SN (newer generation))
Design Notes
Estimated: power consumption at 32MHz active is typically ~5 mA at 3.3V, and nanoWatt XLP sleep drops to ~50 nA typical (datasheet value). For battery applications budget wake-up events carefully - each HFINTOSC startup costs microamp-seconds and dominates battery life if the MCU wakes too frequently. Place a 100nF decoupling capacitor within 5mm of VDD (pin 11) and add a bulk 1-10uF tantalum or ceramic on the same net to handle SMT and COG switching transients.
SOIC-14 layout: use 0.050 inch (1.27mm) pitch pads with at least 0.6mm pad width to ensure reliable reflow. Route VDD/VSS as wide traces (>0.4mm) and place the decoupling cap on the same copper layer, minimizing via count. For ADC accuracy, isolate analog VDD/VSS from noisy digital traces - the PIC16F1614 datasheet shows separate analog and digital ground pins that should be tied at a single point near the MCU. Leave exposed copper under the SOIC body grounded to suppress switching noise.
Avoid these common PIC16F1614 pitfalls: (1) Do not exceed the 32MHz system clock limit - oscillator prescaler must keep Fosc <= 32MHz; (2) When using ZCD for AC mains, place a 100k series resistor to limit current and a 1N4148 clamping diode - direct connection without these will damage the pin; (3) The COG and SMT peripherals require specific pin assignments - consult the Peripheral Pin Select (PPS) table in the datasheet before finalizing the schematic; (4) Brown-out reset (BOR) must be enabled in configuration bits for reliable start-up under low-battery conditions.
Estimated: for analog sensor signals feeding the 10-bit ADC, use a 100nF C_filter across the sensor output to limit ADC sample-charge kickback noise. Keep analog traces short (<25mm) and guard them with grounded copper pour. When using the CLC to combine multiple digital inputs, ensure the source frequency does not exceed the CLC's combinatorial propagation delay (~20ns) - otherwise glitches can propagate into PWM outputs and cause motor-control jitter.
Compliance Information
RoHS compliance confirmed per Microchip product page. AEC-Q100 not applicable - this is an industrial-grade MCU, not automotive-qualified. Halogen-free status not explicitly stated in available data.
