PIC16F1705T-I/SL - 8-bit MCU, 14KB Flash, 32MHz XLP | Microchip
MPN: PIC16F1705T-I/SL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.47 | $1.47 |
| 10 | $1.32 | $13.20 |
| 100 | $1.1 | $110.00 |
| 500 | $0.92 | $460.00 |
| 1,000 | $0.78 | $780.00 |
PIC16F1705T-I/SL Overview
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and integrated peripherals such as ADC, timers, and communication interfaces. MCUs are hierarchically classified as embedded processors -> microcontrollers -> 8-bit microcontrollers. The PIC16F1705 falls in the low-pin-count, low-power category of general-purpose 8-bit MCUs, optimized for cost-sensitive, battery-friendly applications.
Key features include 32MHz internal oscillator, 12-bit ADC with computation (ADC2), two on-chip operational amplifiers, two comparators, two 10-bit DACs, a 10-bit PWM, Core Independent Peripherals (Configurable Logic Cell, Complementary Output Generator, Zero-Cross Detect), Peripheral Pin Select (PPS) for flexible I/O mapping, and eXtreme Low Power (XLP) modes drawing down to nanoamp sleep currents. These features let a single chip replace multiple analog and discrete components in mixed-signal designs.
The device uses a Harvard-architecture RISC core that executes most instructions in one clock cycle, providing deterministic throughput for real-time control loops. PPS decouples peripheral signals from physical pins, allowing PCB layout flexibility and easier routing on dense 14-pin boards. The ADC2 automates averaging, accumulation, and threshold comparison in hardware, offloading these tasks from the CPU and reducing firmware complexity.
Typical applications include LED lighting controllers, sensor signal conditioning, battery-powered IoT nodes, and consumer appliance user-interface modules. Its combination of small footprint, on-chip op amps, and low sleep current makes it well suited to compact mixed-signal designs where both analog conditioning and MCU logic are needed on a single die.
When designing with the PIC16F1705, pay attention to the PPS mapping for analog and digital peripheral routing, since several pins are multiplexed. The 14-pin SOIC is footprint-compatible with many PIC16F1xxx 14-pin devices, simplifying PCB reuse across the family. The internal 32MHz oscillator tolerance is typically +/-1% over the industrial temperature range, which may require external calibration for timing-critical UART/SPI links.
This page synthesizes distributor pricing, drop-in SOIC-14 alternatives, and practical design notes for the PIC16F1705T-I/SL not found on a single manufacturer or distributor page.
Drop-in alternatives for PIC16F1705T-I/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 PIC16F1705T-I/SL (same form factor and footprint) — differing in Package, ADC, Comparators, I/O Pins, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1705-I/SL
✅ Drop-In✓ In Stock
$1.1 / Unit
View Datasheet →PIC16F1704-I/SL
✅ Drop-In✓ In Stock
$0.97 / Unit
View Datasheet →PIC16F1615-I/SL
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16F1615T-I/SL
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.7 / Unit
View Datasheet →PIC16F1575-I/SL
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.93 / Unit
View Datasheet →PIC16F1705T-I/SL Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC (Harvard) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data SRAM | 1024 bytes |
| I/O Pins | 12 (max, package-dependent) |
| ADC | 12-bit ADC with computation (ADC2) |
| Op Amps | 2 on-chip operational amplifiers |
| Comparators | 2 comparators |
| DAC | 2 x 10-bit DAC |
| PWM | 10-bit PWM with Complementary Output Generator |
| Core Independent Peripherals | CLC, COG, Zero-Cross Detect |
| Peripheral Pin Select (PPS) | Yes |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Operating Temperature | -40C to +85C (Industrial, 'I') |
| Package | 14-pin SOIC (SL), 3.90 mm width |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16F1705T-I/SL Pin Configuration
| Pin 1 | RA5 — Bidirectional I/O; analog input; digital-only or PPS-capable |
| Pin 2 | RA4 — Bidirectional I/O; analog input |
| Pin 3 | RA3/MCLR/VPP — I/O pin, Master Clear reset input, programming voltage input |
| Pin 4 | RC5 — Bidirectional I/O; analog input |
| Pin 5 | RC4 — Bidirectional I/O; analog input |
| Pin 6 | RC3 — Bidirectional I/O; analog input |
| Pin 7 | RC2 — Bidirectional I/O; analog input |
| Pin 8 | RC1 — Bidirectional I/O; analog input; op amp output |
| Pin 9 | RC0 — Bidirectional I/O; analog input |
| Pin 10 | VSS — Ground reference |
| Pin 11 | RA1/ICSPCLK — Bidirectional I/O; ICSP clock pin |
| Pin 12 | RA0/ICSPDAT — Bidirectional I/O; ICSP data pin |
| Pin 13 | RA2 — Bidirectional I/O; analog input |
| Pin 14 | VDD — Positive supply input |
Typical Applications
PIC16F1705T-I/SL is suitable for 6 applications: Battery-Powered IoT Sensor Node, LED Lighting Color Controller, Consumer Appliance User Interface, Portable Medical Monitoring Accessory, Industrial Sensor Transmitter (4-20 mA), Smart Home Wireless Remote Control.
Battery-Powered IoT Sensor Node
The PIC16F1705T-I/SL is a strong fit for battery-powered IoT sensor nodes because its XLP technology delivers nanoamp sleep currents (down to ~50 nA in deep sleep with RTC running) while the on-chip 12-bit ADC2 and two op amps eliminate external signal-chain parts. In a typical 3V coin-cell node, the MCU wakes periodically to read a sensor, transmit via SPI/UART, and returns to sleep, achieving multi-year battery life. The 32 MHz core lets on-device averaging and threshold logic complete in microseconds, minimizing active-time current draw.
Recommended
LED Lighting Color Controller
The PIC16F1705T-I/SL is well-suited for LED lighting controllers thanks to its 10-bit PWM with Complementary Output Generator (COG) and Zero-Cross Detect peripheral, which together enable zero-cross TRIAC dimming and high-resolution analog LED dimming in the same firmware. The on-chip op amps can sense photodiode current for closed-loop brightness control, while the 12-bit ADC2 reads thermistor inputs for thermal foldback. A single 14-pin SOIC drives a 4-channel LED string with 1% dimming resolution.
Recommended
Consumer Appliance User Interface
The PIC16F1705T-I/SL fits consumer appliance user-interface modules (coffee makers, washing machine front panels, microwave ovens) because it integrates capacitive-touch sensing via the CLC and ADC2, plus PWM for buzzer/LED feedback, in a single 14-pin SOIC. Industrial temperature rating (-40C to +85C) handles kitchen and laundry environments, while PPS lets the same PCB layout support different button/display configurations. The 2 on-chip op amps sense rotary encoder outputs or thermistor-based temperature inputs.
Recommended
Portable Medical Monitoring Accessory
The PIC16F1705T-I/SL is suitable for portable medical accessories such as pulse-oximeter probes, glucose-meter dongles, and spirometer handhelds because its 12-bit ADC2 with computation handles sensor signal chains while the dual on-chip op amps condition biopotential or optical sensor signals without external analog ICs. XLP nanoamp sleep extends battery life for chronic-condition wearables, and PPS simplifies FDA submission by making the same PCB work across multiple SKUs. The 14-pin SOIC is small enough for wearable form factors.
Recommended
Industrial Sensor Transmitter (4-20 mA)
The PIC16F1705T-I/SL works in 4-20 mA loop-powered industrial sensor transmitters because the 2.3V-5.5V supply range covers loop-powered conditions, the 12-bit ADC2 digitizes bridge or thermocouple signals, and the on-chip op amps amplify low-level sensor outputs (e.g., load cell at 1 mV/V). Core Independent Peripherals (CLC) implement fault detection and HART signal modulation without CPU intervention, freeing the core for calibration and linearization. Industrial temperature rating supports -40C to +85C field installations.
Recommended
Smart Home Wireless Remote Control
The PIC16F1705T-I/SL is appropriate for smart-home wireless remotes (RF key fobs, wall switches, curtain controllers) because XLP nanoamp sleep allows coin-cell remotes to last 5+ years, the CLC peripheral handles wake-up button presses in hardware without CPU intervention, and the 32 MHz core executes RF command encoding in microseconds. PPS lets one PCB design support multiple button layouts by re-routing I/O without board rework, reducing SKU proliferation.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1705T-I/SL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1705-I/SL | PIC16F1704-I/SL | PIC16F1615-I/SL | PIC16F1575-I/SL |
|---|---|---|---|---|---|
| Package | 14-SOIC (SL) | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same | 14-SOIC (SL) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 14 KB (8K x 14) | 14 KB | 7 KB (-50%) | 14 KB | 14 KB |
| Data SRAM | 1024 B | 1024 B | 512 B (-50%) | 1024 B | 1024 B |
| Maximum Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| On-chip Op Amps | 2 | 2 | 2 | 1 (-50%) | 0 (none) |
| ADC | 12-bit ADC2 | 12-bit ADC2 | 12-bit ADC2 | 10-bit ADC | 10-bit ADC |
| Core Independent Peripherals | CLC, COG, ZCD | CLC, COG, ZCD | CLC, COG, ZCD | CLC, COG, ZCD | CLC (no COG, no ZCD) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Two on-chip op amps vs one or zero on competitor 14-pin PIC16 devices (vs PIC16F1615-I/SL)
- 12-bit ADC2 with computation vs 10-bit ADC on older PIC16 family (vs PIC16F1575-I/SL)
- COG and ZCD peripherals for power control vs CLC-only older parts (vs PIC16F1575-I/SL)
Design Notes
Estimated: At 32 MHz active and 3.3V supply, PIC16F1705T-I/SL draws approximately 2.4 mA core current (per Microchip datasheet 40001729C DC characteristics, typical 2.0-2.5 mA range). For battery designs, use Sleep mode with 50 nA typical current and configure wake-up via CLC or IOC to maximize battery life. Decouple VDD with a 100 nF ceramic capacitor as close as possible to the SOIC-14 pin, plus 10 uF bulk capacitance if driving high-current loads through I/O pins.
Place the ICSP pins (RA0/RA1) on accessible test points or pads for in-circuit programming; Microchip PICkit 4 / Snap programmers require these pins. Keep analog traces short and use a guard ring around sensitive analog pins (RC0-RC5) routed through the on-chip op amps. Because PPS re-maps digital peripherals, reserve I/O pin flexibility in PCB layout - avoid locking peripheral signals to fixed pins without consulting the PPS routing matrix in the datasheet.
Estimated: Internal 32 MHz HFINTOSC tolerance is typically +/-1% across the industrial temperature range (per datasheet 40001729C Fosc specification section). For UART/SPI timing-critical links, calibrate the OSCTUNE register at production or switch to an external crystal via the FOSC configuration bits. The 12-bit ADC2 requires a clean VDD - add a ferrite bead and 10 uF/100 nF decoupling on the analog supply rail if the digital I/O drives switching loads.
Do not leave MCLR (pin 3, RA3) floating; tie it to VDD through a 10 kohm resistor for normal operation, or directly to VDD if reset is not needed. The PPS feature can route the same peripheral to multiple pins, but a peripheral signal may be assigned to only one pin at a time - carefully review the PPSLOCK register to prevent unintended remapping. The 'F' vs 'LF' voltage variant matters: PIC16F1705 (2.3V-5.5V) and PIC16LF1705 (1.8V-3.6V) are NOT interchangeable if your design runs at 3.6V max.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40C to +85C operating range. Not AEC-Q100 qualified - use PIC16F1705-E/SL extended grade or PIC16F1705T automotive variants for automotive applications. Halogen-free status not explicitly stated in provided data.
