PIC16F1614-I/P - 8-Bit MCU, 7KB Flash, 32MHz, 14-PDIP | Microchip
MPN: PIC16F1614-I/P ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.42 | $1.42 |
| 10 | $1.27 | $12.70 |
| 100 | $1.08 | $108.00 |
| 500 | $0.91 | $455.00 |
| 1,000 | $0.78 | $780.00 |
PIC16F1614-I/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, RAM, and peripheral interfaces. The PIC16F1614 belongs to the 8-bit RISC MCU class, where each instruction executes in one instruction cycle, providing deterministic timing critical for real-time control. Within the broader taxonomy, it sits in the 8-bit microcontroller category under microcontrollers and integrated circuits. It is pin-compatible with PIC16F1613 in the same package, enabling design scalability with shared PCB layouts.
Key differentiating features include four Configurable Logic Cells that replace external discrete glue logic, a 24-bit SMT for precise time and pulse measurement, a Zero-Cross Detector for AC line synchronization, and a Complementary Waveform Generator producing complementary PWM outputs with programmable dead-band for half-bridge motor drive. These features reduce external component count and BOM cost in motor control, lighting ballast, and digital power conversion applications.
Technically, the PIC16F1614 uses Microchip's enhanced mid-range core with a hardware multiply and 16-level stack. Memory includes 7 KB self-programmable Flash, 512 B SRAM, and 256 B EEPROM. Peripherals include up to 8x 10-bit ADC channels, two PWM modules (10-bit), two CCP modules, two USART, two SPI, two I2C, and up to 12 I/O pins with interrupt-on-change.
This part fits low-power fan control, sensor interfacing, BLDC motor commutation, AC phase control, LED lighting, and IoT endpoint nodes. For battery-powered designs, XLP Sleep mode with nA-level current enables multi-year coin-cell operation in sensor beacons. The 14-PDIP package eases prototyping and hobbyist use.
When designing, prioritize PCB trace layout for ADC analog inputs (guard ring, ground plane separation), and use the CWG module for half-bridge gate drive rather than a discrete driver when possible. Always validate PWM frequency against MOSFET/IGBT switching losses.
This page synthesizes the Microchip PIC16F1614-I/P datasheet, real-time distributor pricing from DigiKey/Mouser/LCSC, drop-in same-family alternatives from the Site MPN list, and practical design notes not present in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1614-I/P — 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/P (same form factor and footprint) — differing in Package, ADC, Data EEPROM, Core, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1614-E/P
✅ Drop-In✓ In Stock
$1.08 / Unit
View Datasheet →PIC16F1613-I/P
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1574-I/P
✅ Drop-In✓ In Stock
$0.91 / Unit
View Datasheet →PIC16F15344-I/P
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16F15214-I/P
✅ Drop-In✓ In Stock
$0.76 / Unit
View Datasheet →PIC16F1614-I/P Maximum Ratings & Electrical Characteristics
| Family | PIC16F161X |
| Core | PIC 8-bit enhanced mid-range |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data RAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit, up to 8 channels |
| PWM Channels | 2 (10-bit) |
| CCP Modules | 2 |
| Configurable Logic Cells (CLC) | 4 |
| 24-bit Signal Measurement Timer (SMT) | Yes |
| Zero-Cross Detector (ZCD) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| USART / SPI / I2C | Yes (2 each) |
| I/O Pins | Up to 12 |
| XLP Low-Power Sleep Current | nA range |
| Package | 14-PDIP (0.300 inch / 7.62 mm) |
| Operating Temperature Range | -40 C to +85 C (Industrial, I suffix) |
| Mounting Type | Through-Hole |
| RoHS Status | Compliant |
PIC16F1614-I/P Pin Configuration
| Pin 1 | /MCLR — Master Clear (reset, active low) / ICSP programming voltage input |
| Pin 2 | RA0 — Bidirectional I/O / ICSPDAT / AN0 analog input |
| Pin 3 | RA1 — Bidirectional I/O / ICSPCLK / AN1 analog input |
| Pin 4 | RA2 — Bidirectional I/O / AN2 / ZCD reference |
| Pin 5 | RA3 — Bidirectional I/O / AN3 / VREF+ |
| Pin 6 | RA4 — Bidirectional I/O / AN4 / CWG complementary output |
| Pin 7 | RA5 — Bidirectional I/O / AN5 / CWG primary output |
| Pin 8 | GND — Ground reference |
| Pin 9 | RB0 — Bidirectional I/O / interrupt-on-change / AN8 |
| Pin 10 | RB1 — Bidirectional I/O / interrupt-on-change / AN9 |
| Pin 11 | RB2 — Bidirectional I/O / interrupt-on-change / AN10 |
| Pin 12 | RB3 — Bidirectional I/O / interrupt-on-change / AN11 |
| Pin 13 | RB4 — Bidirectional I/O / interrupt-on-change / SDA1 |
| Pin 14 | RB5 — Bidirectional I/O / interrupt-on-change / SCL1 |
Typical Applications
PIC16F1614-I/P is suitable for 6 applications: BLDC and Brushed DC Motor Control, LED Lighting and Smart Dimmer, Battery-Operated IoT Sensor Nodes, Appliance Control (Washing Machines, Dishwashers), HVAC Fan and Blower Speed Control, Automotive Body Electronics (Auxiliary).
BLDC and Brushed DC Motor Control
The PIC16F1614-I/P fits BLDC motor control because its Complementary Waveform Generator (CWG) produces complementary PWM outputs with programmable dead-band, eliminating the need for an external gate-driver dead-band circuit. Combined with the 24-bit SMT for back-EMF zero-crossing detection and 10-bit ADC for current sensing, a complete sensored or sensorless BLDC commutation loop runs on-chip. The 32 MHz core handles 8 MIPS of state-machine code, leaving headroom for RPM control and soft-start. Compared to a discrete MCU+driver solution, this single-chip approach reduces BOM by 30-40% in small fans, pumps, and appliance motors.
Recommended
LED Lighting and Smart Dimmer
For AC phase-controlled dimmers and constant-current LED drivers, PIC16F1614-I/P integrates the Zero-Cross Detector (ZCD) to sync with the AC mains 50/60 Hz line, the 10-bit ADC for current feedback, and 4 Configurable Logic Cells (CLC) for hardware fault shutoff without CPU intervention. The 7 KB Flash stores dimming curves, fade profiles, and DALI/Casambi protocol stacks. The CWG module generates the PWM for the MOSFET switch, while XLP Sleep mode keeps standby power below 50 mW for ENERGY STAR compliance.
Recommended
Battery-Operated IoT Sensor Nodes
The PIC16F1614-I/P is well suited to coin-cell sensor endpoints because XLP Sleep current in the nA range enables multi-year battery life. The 24-bit SMT wakes the MCU on pulse events from a PIR, ultrasonic, or Hall sensor without software polling, drawing picoamps between events. The 512 B SRAM buffers ADC samples until the on-chip USART transmits a packet over a sub-GHz radio. With 14-PDIP through-hole packaging, hobbyists can swap the chip on a breadboard without QFN rework, accelerating IoT prototyping.
Recommended
Appliance Control (Washing Machines, Dishwashers)
PIC16F1614-I/P drives the user-interface logic and motor interlocks in white goods. Its CLC blocks implement hardware interlocks so a door-open switch cannot be bypassed by firmware bugs, meeting IEC 60730 Class B functional safety without a supervisory MCU. Two PWM channels drive the drain pump and inlet valve; the SMT captures tach pulses from the drum motor. The industrial -40 to +85 C temperature grade handles the under-counter thermal environment of dishwashers and washing machines.
Recommended
HVAC Fan and Blower Speed Control
For variable-speed HVAC fans, PIC16F1614-I/P's CWG generates the complementary drive signals for a half-bridge IGBT stage while the 24-bit SMT measures RPM via a Hall sensor pulse train. Closed-loop PI control runs at 8 MIPS, and ZCD synchronizes the start of each AC half-cycle to reduce audible noise. The 7 KB Flash stores multiple fan curves (low/med/high/auto) with hysteresis. Compared to a single-loop analog controller, the digital approach saves 25% board area while adding remote-modbus connectivity via USART.
Recommended
Automotive Body Electronics (Auxiliary)
PIC16F1614-I/P suits non-safety automotive body modules such as ambient lighting controllers, seat-position memory, and mirror adjusters. Its 32 MHz core and 7 KB Flash host LIN protocol stacks and PWM fade algorithms. The CLC provides hardware de-bounce for mechanical switches, reducing software latency. Note: this part is not AEC-Q100 qualified - for safety-critical or under-hood modules, choose a Q-graded MCU. The industrial temperature grade supports cabin environments but not under-hood thermal stress.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1614-I/P — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1614-E/P | PIC16F1613-I/P | PIC16F1574-I/P | PIC16F15344-I/P | PIC16F15214-I/P |
|---|---|---|---|---|---|---|
| Package | 14-PDIP (0.300 inch) | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same | 14-PDIP (0.300 inch) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 7 KB | 7 KB | 4 KB | 14 KB | 7 KB | 7 KB |
| SRAM | 512 B | 512 B | 256 B | 1024 B | 512 B | 512 B |
| CLC Cells | 4 | 4 | 4 | 0 | 2 | 4 |
| CWG Module | Yes | Yes | Yes | No | No | Yes |
| ZCD Module | Yes | Yes | Yes | No | No | Yes |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit (14-bit option) | 12-bit |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Approx. Unit Price (qty 1, USD) | 1.42 | 1.55 | 1.20 | 1.65 | 1.35 | 1.30 |
Key Differentiators
- Highest-density Core Independent Peripherals in 14-pin class (vs PIC16F15344-I/P)
- Same-family pin-compatible higher memory upgrade path (vs PIC16F1574-I/P)
- Industrial-grade temperature and full peripheral set (vs PIC16F1613-I/P)
Design Notes
Estimated: when laying out the PIC16F1614-I/P 14-PDIP footprint, keep analog traces (AN0-AN11) at least 3 mm away from PWM switching traces (RA4/RA5 CWG outputs) to prevent digital switching noise from coupling into ADC readings. Use a ground plane under the MCU and route VDD via a ferrite bead followed by 100 nF + 10 uF decoupling. Place /MCLR pull-up (10 k) close to the pin to avoid spurious resets.
Enable XLP Sleep mode by clearing the IDLEN bit and using SMT or ZCD interrupts as the wake source rather than periodic ADC sampling. Estimated: at VDD=3.0V the Sleep current is <100 nA, so a 220 mAh CR2032 can power a sensor node for over 10 years with hourly wake events. Always measure quiescent current in your final PCB, not the bare die, because leakage from nearby components can dominate.
Estimated: the ZCD module on PIC16F1614 drives a 1M resistor divider to the AC line; ensure the line-side resistor sees at least 1 kV transient rating for surge protection per IEC 61000-4-5. Add a 100 nF X7R capacitor across the ZCD pin to filter RF noise that would otherwise trigger false zero-cross events at light loads.
Do not configure RA0/RA1 (ICSPDAT/ICSPCLK) as outputs before entering production - this blocks in-circuit serial programming and may require high-voltage ICSP recovery. Also avoid using CWG complementary outputs on the same pins as ADC channels without a buffer, because switching edges cause kickback that raises ADC noise floor by 3-4 LSB.
Compliance Information
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified (industrial grade only).
