PIC16F1705-E/SL - 8-bit MCU, 14KB Flash, 32MHz XLP | Microchip
MPN: PIC16F1705-E/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.32 | $13.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.93 | $930.00 |
PIC16F1705-E/SL Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, program memory (Flash), data memory (RAM), and peripheral interfaces on a single die. Within the embedded electronics hierarchy, an MCU sits between simple discrete logic and full microprocessors; the PIC16F family occupies the mid-range 8-bit tier that trades raw clock speed for deterministic latency, low power consumption, and rich on-chip analog integration. XLP further extends battery life by offering nanoWatt sleep currents in the microamp range, enabling years of operation from a single coin cell.
The PIC16F1705's key differentiating features include Core Independent Peripherals (CLC, COG, NCO, CCP/PWM), Peripheral Pin Select (PPS) for flexible signal routing, an Enhanced Universal Synchronous/Asynchronous Receiver/Transmitter (EUSART), and I2C/SPI interfaces. Two on-chip op amps and a Zero-Cross Detect block allow direct interfacing with sensors and triac-driven loads without external analog front-end components. The 10-bit ADC with up to 12 channels and computation capabilities supports automated averaging and threshold comparison in firmware.
Typical applications include LED lighting controllers, capacitive touch user interfaces, sensor signal conditioning, small appliance control, battery-powered IoT sensor nodes, and consumer white goods. Its 14-pin SOIC footprint and Microchip ecosystem (MPLAB X IDE, XC8 compiler, MCC code configurator) make it accessible for both prototyping on Curiosity development boards and high-volume production.
When designing with the PIC16F1705, observe the supply voltage range of 2.3V to 5.5V, place a 0.1uF decoupling capacitor adjacent to each VDD pin, and configure PPS carefully to avoid pin conflicts between remappable peripherals. For noise-sensitive analog measurements, disable unused digital inputs and use the dedicated ANSEL register to prevent digital input buffers from corrupting the ADC result.
This page synthesizes distributor pricing, drop-in same-package alternatives, application-specific design guidance, and a comparison table with parametric detail that the manufacturer datasheet alone does not provide.
Drop-in alternatives for PIC16F1705-E/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 PIC16F1705-E/SL (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Core, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1704-E/SL
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1704-I/SL
✅ Drop-In✓ In Stock
$0.97 / Unit
View Datasheet →PIC16F15225-E/SL
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16F15224-I/ST
✅ Drop-In✓ In Stock
$0.72 / Unit
View Datasheet →PIC16F1615-I/SL
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16F1455-I/SL
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F1705-E/SL Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC16F (mid-range core) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data Memory (RAM) | 1 KB |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 12 (14-pin SOIC) |
| ADC | 10-bit, up to 12 channels |
| DAC | 8-bit, 1 channel |
| Comparators | Yes (on-chip) |
| On-chip Op Amps | Yes (2x) |
| Zero-Cross Detect | Yes |
| PWM / CCP | Yes (CCP, PWM) |
| Communication | EUSART, I2C, SPI |
| Core Independent Peripherals | CLC, COG, NCO, PPS |
| XLP Sleep Current | Nanowatt range (XLP) |
| Operating Temperature | -40 C to +125 C (E suffix) |
| Package | 14-pin SOIC (SL) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F1705-E/SL Pin Configuration
| Pin 1 | RA5/SS/HLVDIN — Digital I/O / SPI slave select / high/low voltage detect input |
| Pin 2 | RA4/AN3/C1OUT/T1G — Digital I/O / ADC input / comparator 1 output / Timer1 gate |
| Pin 3 | RA3/AN2/C1IN+/T1CKI — Digital I/O / ADC input / comparator 1 non-inverting / Timer1 clock |
| Pin 4 | RA2/AN1/C1IN0-/DAC1OUT1 — Digital I/O / ADC input / comparator 1 inverting / DAC output |
| Pin 5 | RA1/AN0/C1IN1-/DAC1OUT0 — Digital I/O / ADC input / comparator 1 input / DAC output |
| Pin 6 | RA0/AN4/C2IN+/OPA1IN+ — Digital I/O / ADC input / comparator 2 input / op amp 1 non-inverting input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RC5/OPA1OUT — Digital I/O / op amp 1 output |
| Pin 9 | RC4/OPA2OUT — Digital I/O / op amp 2 output |
| Pin 10 | RC3/AN7/C2IN-/OPA2IN- — Digital I/O / ADC input / comparator 2 inverting / op amp 2 input |
| Pin 11 | RC2/AN6/C2IN+/OPA2IN+ — Digital I/O / ADC input / comparator 2 input / op amp 2 non-inverting input |
| Pin 12 | RC1/AN5/C1IN3-/OPA1IN- — Digital I/O / ADC input / comparator 1 input / op amp 1 input |
| Pin 13 | RC0/VREF+/DAC1VREF+ — Digital I/O / voltage reference / DAC reference |
| Pin 14 | VDD — Positive power supply |
Typical Applications
PIC16F1705-E/SL is suitable for 7 applications: LED Lighting Controllers, Capacitive Touch User Interfaces, Battery-Powered IoT Sensor Nodes, Small Appliance Control, Sensor Signal Conditioning, Consumer White Goods, Industrial Sensor Hubs.
LED Lighting Controllers
The PIC16F1705-E/SL suits LED lighting controllers because its 32MHz CPU, 10-bit PWM/CCP, and on-chip op amps deliver accurate current regulation and dimming control without external driver ICs. Zero-Cross Detect enables triac dimmer compatibility for retrofit incandescent-replacement bulbs, while XLP keeps standby power below 50 microamps for Energy Star compliance. The 14-SOIC footprint fits inside GU10 and PAR30 form factors, and MPLAB X with MCC accelerates firmware development for tunable-white and RGB color-mixing algorithms.
Recommended
Capacitive Touch User Interfaces
The PIC16F1705-E/SL drives capacitive touch buttons and sliders using its 10-bit ADC with computation and Core Independent Peripherals (CLC, COG) that perform touch scanning without CPU intervention. Its 32MHz clock allows up to 100Hz touch sampling rates on 8-12 channels, while the 1KB RAM supports gesture state machines for slider/wheel decoding. The on-chip op amps can buffer capacitive-sensor reference voltages, reducing external component count in appliance front panels and IoT control surfaces.
Recommended
Battery-Powered IoT Sensor Nodes
The PIC16F1705-E/SL fits battery-powered IoT sensor nodes because its XLP technology delivers nanoWatt sleep currents and fast wake-up from 32kHz LP oscillator, enabling 5-10 year coin-cell operation. The on-chip op amps condition thermistor, photocell, or 4-20mA sensor outputs directly into the 10-bit ADC, eliminating external analog front-ends. EUSART and I2C peripherals connect to low-power radio modules such as LoRa or BLE, and the 14-SOIC footprint is compatible with hand-solderable prototype boards.
Recommended
Small Appliance Control
The PIC16F1705-E/SL is well-matched to small appliance controllers including coffee makers, blenders, and fan speed controls because its on-chip op amps can directly interface with motor current-sense resistors and Zero-Cross Detect synchronizes triac firing with the AC line. The 10-bit ADC reads thermistor inputs for over-temperature protection while 8-bit DAC generates reference voltages for closed-loop control loops. The -40C to +125C extended temperature range suits under-hood or unventilated appliance enclosures where temperature rises during operation.
Recommended
Sensor Signal Conditioning
The PIC16F1705-E/SL serves as a sensor signal conditioning front-end where its two on-chip op amps provide programmable gain stages (up to 32x) for strain gauge, thermocouple, or pH electrode inputs. The 10-bit ADC with hardware averaging delivers stable digital outputs at 100k samples per second, and computation features (CMP, ADRND, ADD) implement FIR filtering in hardware without CPU overhead. With 14KB Flash and 1KB RAM, the MCU hosts linearization lookup tables for thermocouple compensation in industrial process control.
Recommended
Consumer White Goods
The PIC16F1705-E/SL powers consumer white goods like washing machines, dishwashers, and microwave oven front panels because its EUSART and I2C peripherals interface with motor inverter controllers and HMI display modules while op amps drive buzzer and triac loads. Zero-Cross Detect simplifies zero-voltage switching of relay coils, extending relay life, and the extended -40C to +125C temperature range tolerates elevated ambient temperatures near heating elements. The 14-SOIC package is easily placed in small PCB areas behind displays, supporting compact panel designs.
Recommended
Industrial Sensor Hubs
The PIC16F1705-E/SL works as a low-cost industrial sensor hub aggregating 4-20mA current loops, thermocouples, and switch contacts into a Modbus RTU output via the EUSART. The op amps provide precise 250 ohm current-loop terminations with low drift, and the 10-bit ADC delivers 0.1% typical accuracy for process monitoring. The 2.3V-5.5V supply range supports 24V industrial bus systems when paired with a switching regulator or LDO, and CLC peripherals enable hardware-only debouncing and pulse-counting without CPU load.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1705-E/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1704-E/SL | PIC16F1704-I/SL | PIC16F15225-E/SL | PIC16F1615-I/SL |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC | 14-SOIC |
| Program Memory (Flash) | 14 KB | 7 KB (-50%) | 7 KB (-50%) | 14 KB (same) | 14 KB (same) |
| RAM | 1 KB | 512 B (-50%) | 512 B (-50%) | 1 KB (same) | 1 KB (same) |
| Maximum CPU Speed | 32 MHz | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| Operating Voltage Range | 2.3 V to 5.5 V | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) | 2.3 V to 5.5 V (same) |
| On-chip Op Amps | Yes (2x) | Yes (2x) | Yes (2x) | No | No |
| Zero-Cross Detect | Yes | Yes | Yes | No | No |
| Operating Temperature | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +85 C (I) | -40 C to +125 C (E) | -40 C to +85 C (I) |
Key Differentiators
- On-chip op amps in 14-SOIC footprint (vs PIC16F1615-I/SL)
- Zero-Cross Detect for AC line control (vs PIC16F15225-E/SL)
- Larger Flash and RAM than lower-tier sibling (vs PIC16F1704-E/SL)
Design Notes
The PIC16F1705-E/SL operates from 2.3V to 5.5V. Place a 100nF ceramic decoupling capacitor within 3mm of the VDD pin (pin 14) and a bulk 10uF capacitor on the supply rail. For battery applications, use the XLP sleep modes (DTM_RUN_IDLE, DOZE, SLEEP) to drop current consumption to the low microamp range. Estimated: at 3.0V supply with 32kHz LP oscillator and full sleep, typical Iq is around 20nA per the XLP family datasheet trend.
Use a ground plane directly under the 14-SOIC to provide a low-impedance return path for digital switching currents. Keep analog traces (AN0-AN7, OPA inputs) short and routed away from digital signals such as RC4/RC5 PWM outputs to minimize crosstalk into the ADC. Add a guard ring around sensitive analog input pins (RA0-RA3) tied to a quiet analog ground to reduce leakage into high-impedance sensor nodes.
Configure unused I/O pins as outputs low rather than inputs to prevent floating-pin current consumption and ADC noise injection. When using the ADC with high-impedance sensors, set the ADC acquisition time (ACQT bits) based on source impedance: 2us for <= 10kohm source, 8us for >10kohm source. Enable ADC computation features (ADRND for averaging, ADCMP for threshold) to offload DSP from the CPU.
Do not exceed 5.5V on any I/O pin; the absolute maximum VDD rating is 6.5V with stress beyond that causing latch-up. When migrating from PIC16F1704 to PIC16F1705 firmware, verify ADC channel mapping because the 1705 exposes fewer analog channels in the 14-SOIC package compared to 20-pin variants. Avoid placing the device near switching regulator inductors that may inject noise into the sensitive analog op amp outputs.
Compliance Information
RoHS compliance verified from Microchip product page. Standard -E temperature range is -40C to +125C, not AEC-Q100 qualified - choose automotive-graded PIC16F1705 variants for vehicle applications.
