PIC16F1614-E/ML - 8-bit 32MHz 7KB Flash MCU | Microchip | QFN-16
MPN: PIC16F1614-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.48 | $148.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16F1614-E/ML Overview
An 8-bit microcontroller (MCU) is a programmable processor that fetches instructions from internal Flash, executes them on an 8-bit data path, and interfaces with the physical world through on-chip peripherals such as ADCs, timers, PWM modules, and communication controllers. Within the broader taxonomy, the PIC16F1614 sits in the category hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. Microchip's PIC16 line targets cost-sensitive, deterministic control applications where the simplicity of an 8-bit core and the maturity of the MPLAB X toolchain outweigh the throughput of 32-bit ARM Cortex-M devices.
Key features of the PIC16F1614-E/ML include 7 KB Flash program memory, 256 bytes of data EEPROM, 512 bytes of SRAM, up to 14 I/O pins, a 10-bit ADC with multiple channel options, multiple PWM/CCP modules, the 24-bit SMT for high-resolution time measurement, and an operating voltage range of approximately 2.3 V to 5.5 V. The device supports In-Circuit Serial Programming (ICSP) via two pins and integrates an internal 32 MHz oscillator that eliminates the external crystal footprint in many designs.
The architecture is built on Microchip's enhanced mid-range 8-bit core with a 14-bit instruction word, single-cycle execution for most instructions (excluding branches), and a hardware multiplier. The XLP technology minimizes active and sleep current consumption, making the part suitable for battery-powered and energy-harvesting designs that spend most of their time in sleep mode.
Typical applications include small brushed DC motor control, LED lighting drivers, fan controllers, low-end consumer appliances, sensor signal conditioning, and general-purpose IoT edge nodes. The combination of dedicated motor-control peripherals (CCP + SMT) and 10-bit ADC simplifies closed-loop control loops on a single chip.
When designing with this part, ensure the exposed pad on the QFN-16 package is soldered to the PCB ground plane for thermal dissipation and mechanical reliability. The internal oscillator is factory-trimmed; for timing-critical applications such as UART communication, verify the baud-rate error at the chosen VDD and temperature range against the datasheet DC and AC characteristics.
This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, identifies drop-in same-package alternatives from Microchip's own PIC16 portfolio, and provides practical design notes that are not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16F1614-E/ML — 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-E/ML (same form factor and footprint) — differing in Package, Program Memory (Flash), ADC, Data SRAM, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1615-E/ML
✅ Drop-In✓ In Stock
$0.96 / Unit
View Datasheet →PIC16F1613-E/ML
✅ Drop-In✓ In Stock
$0.84 / Unit
View Datasheet →PIC16F1614-I/ML
✅ Drop-In✓ In Stock
$0.91 / Unit
View Datasheet →PIC16F1614-E/ML Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC16 (L)F161x |
| Core | PIC16 8-bit enhanced mid-range |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data EEPROM | 256 bytes |
| SRAM | 512 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| ADC | 10-bit |
| PWM / CCP Modules | Yes (multiple) |
| 24-bit Signal Measurement Timer (SMT) | Yes |
| Zero-Cross Detect | Yes |
| I/O Pins | Up to 14 |
| Package | 16-pin QFN (4x4 mm) with exposed thermal pad |
| Mounting Type | Surface Mount |
| XLP (eXtreme Low Power) | Yes (picoPower technology) |
| In-Circuit Serial Programming (ICSP) | Yes |
| Operating Temperature Range | -40 C to +125 C (Extended, "-E") |
| RoHS Status | Compliant |
| Internal Oscillator | 32 MHz factory-trimmed |
PIC16F1614-E/ML Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O / ICSP programming data |
| Pin 2 | RA4 — Bidirectional I/O |
| Pin 3 | RA3 — Bidirectional I/O / MCLR (programming) |
| Pin 4 | RA2 — Bidirectional I/O |
| Pin 5 | RA1 — Bidirectional I/O |
| Pin 6 | RA0 — Bidirectional I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RC5 — Bidirectional I/O / PWM output |
| Pin 9 | RC4 — Bidirectional I/O |
| Pin 10 | RC3 — Bidirectional I/O / SCL (I2C clock) |
| Pin 11 | RC2 — Bidirectional I/O |
| Pin 12 | RC1 — Bidirectional I/O / CCP2 |
| Pin 13 | RC0 — Bidirectional I/O |
| Pin 14 | VDD — Positive supply (2.3 V to 5.5 V) |
| Pin 15 | RA7 — Bidirectional I/O |
| Pin 16 | RA6 — Bidirectional I/O / ICSPCLK |
| Pin 17 | EP — Exposed thermal pad - tie to VSS (ground) |
Typical Applications
PIC16F1614-E/ML is suitable for 6 applications: Small Brushed DC Motor Control, Dimmable LED Lighting Drivers, Battery-Powered IoT Edge Sensors, Fan and Pump Speed Controllers, Small Appliance Control Boards, Industrial Sensor Signal Conditioning.
Small Brushed DC Motor Control
The PIC16F1614-E/ML fits small brushed DC motor control applications because its multiple CCP/PWM channels generate complementary PWM drives for an H-bridge, the 24-bit Signal Measurement Timer (SMT) captures tachometer feedback at high resolution, and the 10-bit ADC samples motor current for closed-loop torque control. With 7 KB of Flash and 512 bytes of SRAM, the part handles a state-machine-based PI control loop plus startup/stall detection routines. Unlike a 32-bit ARM Cortex-M0 MCU, this 8-bit PIC16 keeps the BOM cost low for fans, toys, and small appliance motors.
Recommended
Dimmable LED Lighting Drivers
The PIC16F1614-E/ML is well suited for dimmable LED lighting drivers because its PWM/CCP modules produce dimming waveforms, the 10-bit ADC reads LED current for closed-loop brightness regulation, and the Zero-Cross Detect peripheral synchronizes phase-controlled dimming to the AC line. The XLP picoPower technology reduces standby power to comply with energy-efficiency regulations such as Energy Star and EU Ecodesign. In a typical TRIAC-dimmable LED lamp, the MCU fits in the Edison base and replaces multiple discrete analog components, lowering the BOM cost.
Recommended
Battery-Powered IoT Edge Sensors
For battery-powered IoT edge sensors, the PIC16F1614-E/ML's XLP technology is the key fit. Sleep current in the tens-of-nA range lets a coin-cell-powered sensor node run for years while periodically waking to read a sensor via the 10-bit ADC and transmitting over UART or PWM-based IR. The 32 MHz internal oscillator eliminates external crystal cost, and the 16-pin QFN (4x4 mm) footprint leaves room for a small coin-cell holder on the PCB. Unlike a Cortex-M0+ MCU, the PIC16F1614 costs less and has a simpler interrupt model that suits deterministic sensor sampling.
Recommended
Fan and Pump Speed Controllers
The PIC16F1614-E/ML works well in fan and pump speed controllers. Its 24-bit SMT accurately measures Hall-sensor or back-EMF tach pulses for closed-loop RPM regulation, while its CCP/PWM outputs generate variable-frequency drive for brushless DC or AC fans. The integrated 10-bit ADC reads supply voltage and current, supporting stall detection and overcurrent protection. The 16-pin QFN package exposes all required peripherals while keeping PCB area under 100 mm^2, which is critical for inline fan modules used in PC cooling and appliance ventilation.
Recommended
Small Appliance Control Boards
The PIC16F1614-E/ML is appropriate for small appliance control boards such as coffee makers, blenders, and air purifiers. The 10-bit ADC reads temperature, humidity, and current sensors; the CCP/PWM outputs drive TRIAC and relay gates; and the Zero-Cross Detect peripheral times TRIAC firing relative to the AC line for clean phase-angle control. The 7 KB Flash accommodates user-interface state machines plus safety logic, and the extended -40 C to +125 C temperature range handles appliance operating environments. Compared to a discrete logic implementation, the PIC16F1614 reduces part count by 30-50%.
Recommended
Industrial Sensor Signal Conditioning
The PIC16F1614-E/ML suits industrial sensor signal conditioning modules that need to amplify, filter, and linearize analog sensor signals before forwarding them to a PLC or controller. The 10-bit ADC samples inputs at high rate, the 24-bit SMT timestamps events with microsecond accuracy, and the PWM outputs generate excitation signals for bridge sensors such as load cells. The extended -40 C to +125 C operating range is mandatory for industrial environments, and the 32 MHz throughput handles polynomial linearization routines in real time. Unlike an analog-only signal chain, the MCU-based approach enables field calibration via ICSP without hardware rework.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1614-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1615-E/ML | PIC16F1613-E/ML | PIC16F1614-I/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 16-pin QFN (4x4 mm) with EP | 16-pin QFN (4x4 mm) with EP - same | 16-pin QFN (4x4 mm) with EP - same | 16-pin QFN (4x4 mm) with EP - same |
| Flash Program Memory | 7 KB (4K x 14) | 14 KB (8K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) |
| SRAM | 512 bytes | 1 KB | 512 bytes | 512 bytes |
| Maximum CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| Operating Temperature Range | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit |
| 24-bit SMT and Zero-Cross Detect | Yes | Yes | No | Yes |
| XLP Low Power | Yes | Yes | Yes | Yes |
Key Differentiators
- Integrated 24-bit Signal Measurement Timer and Zero-Cross Detect (vs PIC16F1613-E/ML)
- Compact 4x4 mm QFN-16 footprint (vs PIC16F1509-I/ML (20-pin QFN))
- Extended -40 C to +125 C temperature range (vs PIC16F1614-I/ML (Industrial))
Design Notes
The QFN-16 (4x4 mm) exposed thermal pad (pin 17) MUST be soldered to a PCB ground plane for thermal dissipation and mechanical reliability. Thermal vias under the pad reduce junction-to-ambient resistance. Per IPC-2221 design rules, place at least 4 thermal vias (0.3 mm drill, 0.5 mm pitch) directly under the EPAD to a 1 oz copper inner-plane ground pour. Skipping this connection can cause the part to overheat or delaminate in reflow.
The MCLR pin (RA3) is multiplexed with an I/O function and may be disabled in configuration bits. If MCLR is disabled (MCLRE = 0), the device cannot be reset externally and in-circuit serial programming may require alternate entry sequences. Always set MCLRE = 1 during development and decide based on production needs. For in-circuit programming, ensure ICSPCLK (RA6) and ICSPDAT (RA5) are accessible and not driven by external circuitry during programming.
Estimated: at 32 MHz CPU speed and 5.0 V VDD, the PIC16F1614-E/ML active current is approximately 4-6 mA per the family datasheet. With a 3.0 V supply, active current drops to roughly 2-3 mA. For sleep-mode applications, ensure the device enters Sleep via the SLEEP instruction and wakes via configured interrupts (e.g., RTCC, IOC, or external INT). Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the VDD pin, plus a bulk 1-10 uF capacitor if supply impedance is high.
Keep ADC traces short and routed away from PWM switching signals to minimize coupled noise. Use a separate analog ground (AVSS) star-point if analog accuracy below 10-bit resolution is required. For UART communication, the internal 32 MHz oscillator has a tolerance of approximately +/- 2% across temperature and voltage - if UART baud-rate error must stay below 1%, either calibrate the OSCTUNE register against a reference clock or add an external crystal.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a general-purpose MCU, not an automotive-grade part. The "-E" suffix indicates extended temperature grade (-40 C to +125 C).
