PIC16LF1613-E/ST - 8-bit MCU, 3.5KB Flash, 32MHz, 14-TSSOP
MPN: PIC16LF1613-E/ST ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.87 | $0.87 |
| 10 | $0.78 | $7.80 |
| 100 | $0.7 | $70.00 |
| 500 | $0.63 | $315.00 |
| 1,000 | $0.57 | $570.00 |
PIC16LF1613-E/ST Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of peripherals such as timers, ADC, comparators, PWM, and communication interfaces. Within the broader taxonomy, the PIC16LF1613 belongs to the 8-bit PIC16 family (Microchip mid-range architecture), which itself sits under the RISC microcontroller category and the wider power-management-aware embedded controller hierarchy. The "LF" prefix designates the low-voltage variant, which sacrifices absolute maximum supply voltage for dramatically reduced active and sleep currents versus standard PIC16F devices.
Key features include 32 MHz operation (8 MIPS), 3.5 KB self-programmable Flash, 256 bytes RAM, 12 I/O pins, a 10-bit ADC with computation (ADC2), multiple PWM modules, configurable logic cells (CLC), numerically controlled oscillator (NCO), and zero-cross detection (ZCD) for TRIAC control. Peripherals such as CLC and NCO allow designers to replace discrete glue logic and analog timers, reducing BOM cost and board area in appliance and lighting control products.
Architecturally, the PIC16LF1613 uses Microchip's enhanced mid-range 14-bit instruction set, which provides a C-friendly development experience through the MPLAB X IDE and XC8 compiler. The integrated Core Independent Peripherals (CIPs) - CLC, NCO, CWG, ZCD - can operate without CPU intervention, freeing the core for higher-level tasks and enabling deterministic real-time response even at low clock rates.
Typical applications include consumer appliance control (washing machines, microwave ovens), LED lighting with TRIAC dimming, battery-powered IoT sensor nodes, low-cost motor control loops, and remote control units. The combination of 14-TSSOP footprint, 32 MHz speed, and CIPs makes it well suited to designs migrating from legacy PIC12/PIC16 mid-range parts to a more capable but pin-compatible successor.
When designing with this MCU, ensure the LF supply rail stays within 1.8 V to 3.6 V; connecting 5 V directly will damage the device. Use MPLAB X IDE with the XC8 compiler, configure ICD programming via the ICSP header, and verify EMC behavior of the ZCD and CLC peripherals against your dimmer or sensor analog front-end.
This page synthesizes distributor pricing, drop-in same-package alternatives, and design notes - including parameter proximity scoring and AEC-Q100 considerations - that are not aggregated on the manufacturer product page.
Drop-in alternatives for PIC16LF1613-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 PIC16LF1613-E/ST (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Program Memory (Flash), RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1613-E/ST
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1614-E/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF1615-E/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.92 / Unit
View Datasheet →PIC16LF1619-E/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF1554-E/ST
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.97 / Unit
View Datasheet →PIC16LF1574-E/ST
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF1613-E/ST Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 enhanced mid-range 8-bit RISC |
| Program Memory (Flash) | 3.5 KB (2K x 14) |
| RAM | 256 bytes |
| CPU Speed | 32 MHz (8 MIPS) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 12 |
| ADC | 10-bit with ADC2 computation |
| Core Independent Peripherals | CLC, NCO, CWG, ZCD |
| Package | 14-TSSOP (4.40 mm width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E = extended industrial) |
| RoHS Status | Compliant (lead-free) |
PIC16LF1613-E/ST Pin Configuration
| Pin 1 | RA3/AN3/Vref+ — GPIO RA3 / ADC input / positive voltage reference |
| Pin 2 | RA4/AN4 — GPIO RA4 / ADC input |
| Pin 3 | RA5/MCLR/VPP — GPIO RA5 / Master Clear (reset) / ICSP programming voltage |
| Pin 4 | RA0/ICSPDAT — GPIO RA0 / ICSP data |
| Pin 5 | RA1/ICSPCLK — GPIO RA1 / ICSP clock |
| Pin 6 | RA2/AN2 — GPIO RA2 / ADC input |
| Pin 7 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | RA7/OSC1 — GPIO RA7 / external oscillator input |
| Pin 10 | RA6/OSC2 — GPIO RA6 / external oscillator output |
| Pin 11 | RC0 — GPIO RC0 |
| Pin 12 | RC1 — GPIO RC1 |
| Pin 13 | RC2 — GPIO RC2 |
| Pin 14 | RC3 — GPIO RC3 |
Typical Applications
PIC16LF1613-E/ST is suitable for 6 applications: Consumer Appliance Control (Washing Machines, Microwaves), LED Lighting with TRIAC Phase-Control Dimming, Battery-Powered IoT Sensor Nodes, Low-Cost Closed-Loop Motor Control, Remote Control Units (IR/RF), Smart Home Sensor Hubs (Edge Nodes).
Consumer Appliance Control (Washing Machines, Microwaves)
The PIC16LF1613-E/ST fits mid-range appliance control boards because its 3.5 KB Flash accommodates typical state-machine code, 32 MHz execution delivers real-time response for motor and user-interface loops, and the CWG peripheral generates complementary PWM waveforms for synchronous motor drives without external logic. The 14-TSSOP package is small enough for compact UI boards, and the extended -40C to +125C temperature range handles under-cabinet and outdoor appliance environments. CLC and NCO eliminate several discrete timing ICs that older designs required, reducing BOM cost by an estimated 15-25%.
Recommended
LED Lighting with TRIAC Phase-Control Dimming
The PIC16LF1613-E/ST integrates Zero-Cross Detection (ZCD) and the Complementary Waveform Generator (CWG) that, together, implement TRIAC-based leading-edge dimming without external zero-cross transformers or comparators. The LF 1.8 V minimum supply allows direct connection to AC-DC constant-current LED driver outputs, and the 8 MIPS throughput executes dimming curve math and thermal foldback in real time. The CLC peripheral further offloads dimming-edge synthesis from the CPU, enabling deeper sleep current and longer bulb lifetime on thermally constrained fixtures.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16LF1613-E/ST is an excellent host for IoT sensor nodes operating from coin-cell or Li-ion batteries. Its 1.8 V minimum supply supports direct connection to two alkaline cells, and the core-independent peripherals - CLC, NCO, ADC2 with computation - wake on analog threshold or digital event without CPU intervention, holding the core in deep sleep for months. The 256-byte RAM is sufficient for sampled-sensor buffering before radio TX bursts, and the 14-TSSOP footprint fits within sub-10 x 10 mm sensor PCBs alongside an external sub-GHz or BLE module.
Recommended
Low-Cost Closed-Loop Motor Control
In small brushless DC (BLDC) or brushed DC motor control designs - fans, small pumps, vibration motors - the PIC16LF1613-E/ST runs an FOC or trapezoidal commutation loop at 32 MHz with comfortable headroom. The CWG peripheral generates the 6-step complementary switching pattern directly, and ADC2 with computation samples back-EMF and current feedback without CPU math. Compared with discrete op-amp+comparator solutions, integrating these peripherals into the MCU cuts analog component count by 30-40% and improves noise immunity.
Recommended
Remote Control Units (IR/RF)
Handheld remote controls benefit from the PIC16LF1613-E/ST's 1.8 V supply (two AAA cells), CLC-driven IR carrier synthesis without external timers, and deep-sleep current that extends battery life to multi-year horizons. The 3.5 KB Flash holds IR protocol libraries (RC5, NEC, Sony SIRC) plus custom button mappings, and the 32 MHz oscillator ensures accurate 38 kHz carrier frequency for IR transmission. Pin count (12 I/O) easily accommodates a 4x4 keypad matrix plus status LEDs.
Recommended
Smart Home Sensor Hubs (Edge Nodes)
The PIC16LF1613-E/ST serves as an edge node in smart-home sensor hubs, fusing temperature, humidity, occupancy, and light-level inputs through its 10-bit ADC2 and routing local decisions (turn on a relay, dim a light) without cloud round-trip. Core-independent CLC and ZCD peripherals enable sub-100 µA average current on battery operation, and 14-TSSOP packaging fits within wall-switch and ceiling-sensor form factors. The extended -40C to +125C temperature range is critical for ceiling-mounted devices subject to attic-heat extremes.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1613-E/ST — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1613-E/ST | PIC16LF1614-E/ST | PIC16LF1615-E/ST | PIC16LF1619-E/ST | PIC16LF1554-E/ST | PIC16LF1574-E/ST |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-TSSOP | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same | 14-TSSOP - same |
| Supply Voltage (VDD) | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Maximum CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| Zero-Cross Detect (ZCD) | Yes | Yes | Yes | Yes | Yes | No | Yes |
| I/O Pins | 12 | 12 | 12 | 12 | 18 (different package/footprint variant) | 12 | 12 |
Key Differentiators
- Integrated Zero-Cross Detection (ZCD) eliminates external comparator circuitry (vs PIC16LF1554-E/ST)
- Lowest minimum supply voltage in the PIC16F161x family (vs PIC16F1613-E/ST)
- Core Independent Peripherals (CIPs) execute without CPU intervention (vs PIC16LF1574-E/ST)
Design Notes
The PIC16LF1613-E/ST requires VDD strictly within 1.8 V to 3.6 V; applying 5 V will damage the device. Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 7) and a bulk 10 µF tantalum or ceramic capacitor on the same rail. For battery operation from two AA cells, add a low-loss LDO (e.g. MCP1700) to extend usable battery life below the MCU's brown-out threshold of approximately 1.8 V.
Do not confuse the LF variant with the F variant - PIC16F1613 supports 5 V but PIC16LF1613 does not. Also note that the MCLR pin (pin 3) is shared with VPP and RA5; if MCLR is enabled in configuration bits, the pin cannot be used as a general-purpose I/O without external weak pull-up configuration. Configure MCLRE = OFF in CONFIG1 to free RA5 as GPIO when not using external reset.
Route the ICSP clock (ICSPCLK, pin 5) and ICSP data (ICSPDAT, pin 4) lines away from switching power nodes and PWM outputs to prevent programming failures during in-circuit programming. Keep the ICSP connector within 50 mm of these pins and avoid via stubs on the ICSP trace. For ZCD-based TRIAC dimming, place the ZCD sense resistor network within 5 mm of the ZCD pin to minimize noise pickup from the AC mains.
When using the CLC and NCO peripherals for high-frequency signal generation, route the CLC output pin adjacent to ground on the PCB and avoid running sensitive analog traces in parallel. The 10-bit ADC2 input impedance is approximately 10 kΩ; sample-and-hold time should be set to a minimum of 1 µs for sources above 10 kΩ to maintain ADC accuracy. Use the dedicated ADC2 with computation feature to offload averaging and oversampling from the CPU.
The PIC16LF1613-E/ST consumes approximately 5 mA active at 32 MHz and below 1 µA in deep sleep, so thermal management is rarely a concern at 14-TSSOP dissipation levels. However, in enclosed fixtures (e.g. LED bulbs) at +85C ambient, derate clock speed or duty cycle to keep junction temperature below +125C. Estimated: theta_JA of 14-TSSOP is approximately 100 C/W; at 5 mA / 3.3 V = 16.5 mW dissipation, junction rise is only 1.65 C above ambient.
Compliance Information
RoHS compliant per distributor data (Heisener, DigiKey). Not AEC-Q100 qualified - choose PIC16F1613-E/ST-Q1 or similar automotive-grade variant for automotive applications. Halogen-free status not explicitly stated in available data; marked unknown.
