PIC16F1614-E/ST - 8-bit 32MHz 7KB Flash MCU 14-TSSOP | Microchip
MPN: PIC16F1614-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.57 | $1.57 |
| 10 | $1.43 | $14.30 |
| 100 | $1.18 | $118.00 |
| 500 | $1.02 | $510.00 |
| 1,000 | $0.91 | $910.00 |
| 3,000 | $0.78 | $2,340.00 |
PIC16F1614-E/ST Overview
A microcontroller (MCU) is an integrated circuit combining a CPU core, program memory, data memory, and configurable peripherals on a single die. Within the semiconductor hierarchy, the PIC16F1614 belongs to the 8-bit MCU class, the PIC16 family, and the broader PIC® XLP™ (eXtreme Low Power) product line. These MCUs target low-power and mixed-signal embedded applications in 8/14/20-pin packages where small form factor, on-chip peripherals, and standby current minimization are essential.
Key features include a hardware 10-bit ADC with multiple channel options, Capture/Compare/PWM (CCP) peripherals, a 24-bit Signal Measurement Timer (SMT) for precise period/pulse measurement, Zero-Cross Detection (ZCD), and on-chip Complementary Waveform Generator (CWG) peripherals intended for motor-control and lighting applications. The device integrates a configurable Logic Cell, multiple timers, and serial peripherals supporting I2C, SPI, and EUSART communication, with XLP sleep current typically in the nanoamp range to extend battery life in low-duty-cycle systems.
Architecturally, the PIC16F1614 uses an enhanced mid-range 8-bit core with a 14-bit instruction word, a single-cycle hardware multiply, and a vectored interrupt controller supporting prioritized events. The industrial -40C to +125C operating range (-E suffix) makes it suitable for harsh-environment deployments, while the 14-pin TSSOP footprint offers thermal headroom and hand-solder-friendly lead pitch. Internal oscillator calibration and on-chip voltage reference options reduce external component count.
Typical applications include small DC motor and fan speed control, LED lighting ballast control with dimming, fan RPM measurement via 24-bit SMT, household appliance control boards, general-purpose sensor hubs, and IoT edge nodes where XLP sleep modes preserve coin-cell battery life. The 14-pin TSSOP package suits compact PCBAs with limited board area.
When designing with the PIC16F1614-E/ST, ensure the supply decoupling network uses a 100 nF ceramic capacitor within 5 mm of VDD and a bulk 1 uF or larger tantalum/ceramic capacitor; place the decoupling reference (AVDD/AVSS) bypass capacitor close to the analog pins to preserve ADC accuracy. Avoid routing high-frequency switching traces adjacent to the ADC reference pins to prevent digital noise coupling into measurement channels.
This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not found in the manufacturer datasheet alone, providing a focused reference for procurement, design, and qualification decisions.
Drop-in alternatives for PIC16F1614-E/ST — 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/ST (same form factor and footprint) — differing in Package, ADC, Operating Temperature, RoHS Status, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1614-I/ST
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16F1614T-I/ST
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1613-E/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1614-E/P
✅ Drop-In✓ In Stock
$1.08 / Unit
View Datasheet →PIC16F15324-E/ST
✅ Drop-In✓ In Stock
$0.89 / Unit
View Datasheet →PIC16F1574-E/ST
✅ Drop-In✓ In Stock
$0.98 / Unit
View Datasheet →PIC16F1614-E/ST Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC16F161X (PIC® XLP™ 16F) |
| Core | 8-bit PIC enhanced mid-range (14-bit instruction word) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 512 B |
| ADC | 10-bit, multiple channels |
| PWM / CCP | Yes (CCP) |
| Signal Measurement Timer | 24-bit SMT |
| Zero-Cross Detect (ZCD) | Yes |
| Complementary Waveform Generator (CWG) | Yes |
| Communication Peripherals | I2C, SPI, EUSART |
| Operating Temperature Range | -40C to +125C (Industrial, -E suffix) |
| Package | 14-TSSOP (Thin Shrink Small Outline, 4.40 mm body) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (per Microchip product page) |
PIC16F1614-E/ST Pin Configuration
| Pin 1 | RA3/AN3/VREF+/CWG1FLT/CCP2/SMT1SIG/T0CKI/MCLR — General I/O, analog input, voltage reference, CWG fault, CCP, SMT signal, Timer0 clock, Master Clear (reset) |
| Pin 2 | RA0/AN0/CWG1OUT/ICSPDAT — General I/O, analog input, CWG output, ICSP data |
| Pin 3 | RA1/AN1/CWG1IN/ZCD1/SMT1WIN/ICSPCLK — General I/O, analog input, CWG input, ZCD, SMT window, ICSP clock |
| Pin 4 | RA2/AN2/CWG1FLT/SMT1SIG/INT — General I/O, analog input, CWG fault, SMT signal, external interrupt |
| Pin 5 | RC0/SOSCO/T1CKI/PWMC — General I/O, secondary oscillator, Timer1 clock, PWM output |
| Pin 6 | RC1/SOSCI/CCP2/PWMD — General I/O, secondary oscillator, CCP, PWM output |
| Pin 7 | RC2/AN6/CCP1/PWME — General I/O, analog input, CCP, PWM output |
| Pin 8 | RC3/AN7/SCK/SCL — General I/O, analog input, SPI clock, I2C clock |
| Pin 9 | RC4/AN8/SDI/SDA — General I/O, analog input, SPI data in, I2C data |
| Pin 10 | RC5/AN9/SDO/CWG1OUT — General I/O, analog input, SPI data out, CWG output |
| Pin 11 | VDD — Positive supply voltage |
| Pin 12 | VSS — Ground reference |
| Pin 13 | RA4/AN3/T1G/SMT1WIN/CLKR — General I/O, analog input, Timer1 gate, SMT window, clock reference output |
| Pin 14 | RA5/AN4/T1CKI/SMT1SIG/PWMA — General I/O, analog input, Timer1 clock, SMT signal, PWM output |
Typical Applications
PIC16F1614-E/ST is suitable for 6 applications: Small DC Motor and Fan Speed Control, LED Lighting Ballast with Dimming, Household Appliance Control Boards, Battery-Powered Sensor Hubs, General-Purpose Embedded Control, Fan RPM Tachometer Sensing.
Small DC Motor and Fan Speed Control
The PIC16F1614-E/ST fits small DC motor and fan speed control designs because its 32 MHz enhanced mid-range core, 10-bit ADC, and on-chip Complementary Waveform Generator (CWG) deliver complementary PWM outputs with minimal external circuitry. The 24-bit Signal Measurement Timer (SMT) measures tachometer pulses with sub-microsecond resolution, enabling closed-loop RPM feedback on brushless DC fans. Per Microchip datasheet 40001774E, the CWG module generates dead-band-controlled complementary waveforms suited to half-bridge motor drivers. Place the device on a 14-TSSOP footprint near the gate-driver stage to minimize PWM trace length and reduce switching noise coupling into the ADC reference. For thermal management in fan-control boards, leverage the -40C to +125C industrial temperature rating to sustain operation inside enclosed appliances.
Recommended
LED Lighting Ballast with Dimming
The PIC16F1614-E/ST powers LED lighting ballast designs requiring dimming control because its Zero-Cross Detection (ZCD) peripheral synchronizes TRIAC dimmer phase angles to AC line crossings, while the CWG generates high-resolution PWM for constant-current LED drivers. Per Microchip datasheet 40001774E, the integrated 10-bit ADC monitors LED current and temperature, enabling closed-loop brightness stabilization. The 7 KB Flash accommodates lookup tables for dimming curves and thermal foldback algorithms. For smart-lighting applications, the EUSART and I2C peripherals interface to wireless modules or DALI controllers. The 14-TSSOP package offers the thermal and board-area advantages needed inside compact lamp housings.
Recommended
Household Appliance Control Boards
The PIC16F1614-E/ST targets household appliance control boards because its industrial -40C to +125C temperature range tolerates kitchen and laundry environments, and its integrated peripherals reduce the BOM for user-interface keypads, relay drivers, and sensor readouts. The PIC® XLP™ sleep modes draw nanoamp currents when the appliance is idle, preserving energy in standby. Per Microchip datasheet 40001774E, the 24-bit SMT can measure mains-frequency zero-cross timing for triac phase control in washing machines and dishwashers. The 14-TSSOP footprint is well-suited to compact PCBA layouts behind control panels where space is constrained.
Recommended
Battery-Powered Sensor Hubs
The PIC16F1614-E/ST is well-suited to battery-powered sensor hubs because the PIC® XLP™ architecture achieves nanoamp sleep currents, allowing multi-year coin-cell operation in duty-cycled sensing roles. The 10-bit ADC reads temperature, humidity, or analog sensor outputs, and the on-chip SMT measures pulse-output flow or rotation sensors. Per Microchip datasheet 40001774E, the integrated EUSART or I2C peripherals communicate with radio modules or external EEPROM for data logging. The 14-TSSOP package is reflow-compatible with high-volume SMT assembly, and the industrial temperature rating supports outdoor or refrigerated environments.
Recommended
General-Purpose Embedded Control
The PIC16F1614-E/ST serves general-purpose embedded control roles because its balanced mix of 7 KB Flash, 512 B SRAM, 10-bit ADC, PWM, and serial peripherals handles a wide range of glue-logic replacement and timing-control tasks. Per Microchip datasheet 40001774E, the configurable Logic Cell allows hardware-state-machine implementation without CPU overhead, offloading repetitive I/O sequences. The EUSART, I2C, and SPI peripherals interface to sensors, displays, and external EEPROMs, while the 14-TSSOP footprint fits hand-soldered prototypes and low-volume SMT assemblies. The device scales from consumer appliances to industrial-control peripherals within the same firmware architecture.
Recommended
Fan RPM Tachometer Sensing
The PIC16F1614-E/ST excels at fan RPM tachometer sensing because its 24-bit Signal Measurement Timer captures pulse-period and pulse-width measurements with 32-bit internal accumulators and hardware capture triggers. Per Microchip datasheet 40001774E, the SMT peripheral measures tachometer frequencies from sub-Hz up to multi-MHz, supporting slow-rotating household fans and high-speed blower monitoring without CPU intervention. Combined with the CWG peripheral for PWM speed command generation and the 10-bit ADC for current sensing, the PIC16F1614 forms a complete closed-loop fan controller in a single 14-TSSOP IC. The industrial temperature rating ensures stable operation inside hot enclosures near motors and heatsinks.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1614-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1614-I/ST | PIC16F1614T-I/ST | PIC16F1613-E/ST | PIC16F1614-E/P | PIC16F15324-E/ST | PIC16F1574-E/ST |
|---|---|---|---|---|---|---|---|
| Package | 14-TSSOP (4.40 mm body) | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-PDIP (through-hole) | 14-TSSOP - same | 14-TSSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / CPU Speed | 8-bit PIC enhanced / 32 MHz | 8-bit PIC enhanced / 32 MHz | 8-bit PIC enhanced / 32 MHz | 8-bit PIC enhanced / 32 MHz | 8-bit PIC enhanced / 32 MHz | 8-bit PIC enhanced / 32 MHz | |
| 24-bit SMT (Signal Measurement Timer) | Yes | Yes | Yes | No | No (CIP-based) | No | |
| Zero-Cross Detection (ZCD) | Yes | Yes | Yes | No | No | No | |
| Complementary Waveform Generator (CWG) | Yes | Yes | Yes | Yes | Yes (CIP variant) | Yes | |
| Temperature Grade | -40C to +125C (Industrial -E) | -40C to +85C (Industrial -I) | -40C to +85C (Industrial -I) | -40C to +125C (Industrial -E) | -40C to +125C (Industrial -E) | -40C to +125C (Industrial -E) | -40C to +125C (Industrial -E) |
Key Differentiators
- Integrated 24-bit Signal Measurement Timer (SMT) (vs PIC16F1613-E/ST)
- On-chip Zero-Cross Detection (ZCD) and Complementary Waveform Generator (CWG) (vs PIC16F1574-E/ST)
- Industrial -40C to +125C temperature grade in TSSOP-14 (vs PIC16F1614-I/ST)
Design Notes
Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the VDD pin (pin 11) and a bulk 1 uF or larger low-ESR capacitor near the supply entry point. Use separate analog and digital supply traces if implementing AVDD; otherwise connect VDD directly to a clean 3.3 V or 5 V rail. Per Microchip datasheet 40001774E, inrush current during Flash programming requires the bulk capacitor to maintain regulation. Tie MCLR (pin 1) high through a 10 kohm resistor to VDD for normal operation.
Route the 14-TSSOP land pattern on a 0.65 mm pitch with 0.30 x 1.50 mm pads and a thermal relief spoke pattern on the ground pad. Keep high-current traces (PWM outputs to gate drivers, motor phase lines) at least 5 mm away from the analog reference pins (RA1/AN1, RA3/AN3) to prevent digital switching noise from corrupting ADC readings. Per Microchip datasheet 40001774E, place the SMT input trace (e.g., tachometer) close to the assigned input pin to minimize capacitance.
For ADC measurements, use the dedicated analog supply pin (AVDD) when available and bypass it with a 100 nF NPO ceramic capacitor to the analog ground pin (AVSS). Avoid routing digital signals adjacent to the analog reference traces; use a ground plane to isolate the analog section. Per Microchip datasheet 40001774E, the on-chip voltage reference and 10-bit ADC achieve best accuracy when the source impedance is below 10 kohm. Use acquisition time settings appropriate to source impedance for highest conversion accuracy.
Do not leave the MCLR pin floating - an unterminated reset line picks up noise and causes spurious resets during PWM switching. Per Microchip datasheet 40001774E, configure the Configuration Words correctly: disable the Watchdog Timer if not used, enable the appropriate oscillator mode, and set the Brown-out Reset voltage threshold to match the supply rail. Verify unused I/O pins are configured as outputs or inputs with internal pull-ups to minimize current draw. Failing to configure configuration bits is a common cause of non-functional prototypes.
Compliance Information
RoHS compliance per Microchip product page. PIC16F1614 family is not AEC-Q100 qualified - choose PIC16F176x or PIC18F Q1 variants for automotive applications. Halogen-free status not explicitly stated in provided data.
