PIC16F1707-I/SO - 8-Bit MCU, 32MHz, 3.5KB Flash | Microchip
MPN: PIC16F1707-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 10 | $1.96 | $19.60 |
| 100 | $1.74 | $174.00 |
| 500 | $1.52 | $760.00 |
| 1,000 | $1.38 | $1,380.00 |
PIC16F1707-I/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, volatile working RAM, digital I/O, and on-chip peripherals. The PIC16F1707 belongs to the 8-bit MCU class, sitting in the product hierarchy: 8-bit microcontroller -> PIC16 family -> enhanced mid-range core with nanoWatt/XLP technology -> low-cost general-purpose MCU with integrated analog. This category targets cost-sensitive, low-power embedded applications where integrating analog functions on-chip reduces BOM and PCB area.
Key specifications include a 200ns instruction execution time, 14-bit wide instructions, 1.75KB usable Flash, 256B SRAM, and support for 32kHz to 32MHz oscillator operation. The 20-pin SOIC package exposes up to 18 I/O pins depending on configuration, with PPS allowing flexible peripheral-to-pin mapping. The device supports 1.8V to 5.5V wide operating voltage, making it suitable for both 3.3V and 5V designs without level shifters.
The PIC16F1707 utilizes Microchip's enhanced mid-range 8-bit RISC core with a 14-bit instruction set and a hardware stack, providing deterministic interrupt latency suitable for real-time control. On-chip peripherals are designed as Core Independent Peripherals (CIPs), allowing the COG, ZCD, and timers to operate without CPU intervention - a critical advantage for low-power and deterministic motor, lighting, and power-conversion applications.
Typical applications include LED lighting drivers, battery chargers, fan control, small appliance control, IoT sensor nodes, and general-purpose sensor interfacing. The integrated op-amps and 10-bit ADC simplify analog front-ends for temperature, light, and current sensing. Design trade-offs include the 8-bit datapath limiting arithmetic throughput compared to 32-bit MCUs, and the small 3.5KB Flash requiring careful code optimization for complex applications.
When designing, ensure decoupling capacitors (100nF + 10uF bulk) are placed within 5mm of VDD pins. Configure unused I/O as outputs to minimize current consumption, and use the XLP sleep modes for battery-powered designs. The PPS feature requires careful review of datasheet pin-mapping tables to avoid conflicts.
This page synthesizes distributor pricing, drop-in compatible alternatives from Microchip and competitors, application notes, and design considerations not consolidated in the manufacturer datasheet, providing an information-dense reference for engineers evaluating the PIC16F1707 for new designs.
Drop-in alternatives for PIC16F1707-I/SO — 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 PIC16F1707-I/SO (same form factor and footprint) — differing in Package, ADC, I/O Pins, Program Memory (Flash), Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1705-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1705T-I/ST
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F1704-I/SL
✅ Drop-In✓ In Stock
$0.97 / Unit
View Datasheet →PIC16F1507-I/SO
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC16F1615-I/SL
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →ATTINY1616-SFR
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1619T-I/SO
✅ Drop-In✓ In Stock
$1.12 / Unit
View Datasheet →PIC16F1707-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC enhanced mid-range RISC |
| Program Memory (Flash) | 3.5 KB (2K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 128 bytes |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle Time | 200 ns at 20 MHz / 125 ns at 32 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Package | 20-pin SOIC (SO) |
| Number of I/O Pins | Up to 18 |
| ADC | 10-bit with Computation (ADC2) |
| On-chip Operational Amplifiers | 2 (selectable) |
| Complementary Output Generator (COG) | Yes (1 module) |
| Zero Cross Detect (ZCD) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| UART | Yes (1x EUSART) |
| SPI | Yes (1x MSSP) |
| I2C | Yes (1x MSSP) |
| Operating Temperature Range | -40C to +85C (Industrial) |
| RoHS Status | Compliant |
PIC16F1707-I/SO Pin Configuration
| Pin 1 | RA3/AN3/VREF+/T1CKI/ZCD — Bidirectional I/O with analog input, positive voltage reference, Timer1 clock input, and zero-cross detect |
| Pin 2 | RA4/AN4/T1G/ZCD — Bidirectional I/O with analog input and Timer1 gate |
| Pin 3 | RA5/AN5 — Bidirectional I/O with analog input |
| Pin 4 | RA0/AN0 — Bidirectional I/O with analog input |
| Pin 5 | RA1/AN1 — Bidirectional I/O with analog input |
| Pin 6 | RA2/AN2 — Bidirectional I/O with analog input |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (1.8V-5.5V) |
| Pin 9 | OSC2/RA6 — Crystal oscillator output or general I/O |
| Pin 10 | OSC1/RA7 — Crystal oscillator input or general I/O |
| Pin 11 | RC0 — Bidirectional digital I/O |
| Pin 12 | RC1 — Bidirectional digital I/O |
| Pin 13 | RC2 — Bidirectional digital I/O |
| Pin 14 | RC3 — Bidirectional digital I/O |
| Pin 15 | RC4 — Bidirectional digital I/O |
| Pin 16 | RC5 — Bidirectional digital I/O |
| Pin 17 | RC6 — Bidirectional digital I/O / TX/CK |
| Pin 18 | RC7 — Bidirectional digital I/O / RX/DT |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (1.8V-5.5V) |
Typical Applications
PIC16F1707-I/SO is suitable for 6 applications: LED Lighting Driver, Battery Charger Controller, Brushless DC Fan Control, IoT Sensor Node / Edge Sensing, Small Appliance Control, Industrial Sensor Conditioning Front-End.
LED Lighting Driver
The PIC16F1707-I/SO is well-suited for LED lighting control thanks to its integrated Complementary Output Generator (COG) and on-chip op-amps. The COG provides hardware-generated complementary PWM outputs with programmable dead-band, allowing direct drive of half-bridge MOSFETs in offline LED drivers without software overhead. The on-chip op-amps can sense LED current via shunt and feed a hardware comparator for closed-loop current regulation, achieving better than 1% line regulation across 1.8V-5.5V input. Combined with the 10-bit ADC2 and zero-cross detect for AC line synchronization, the PIC16F1707 enables cost-optimized dimmable LED retrofit lamps. Core Independent Peripherals (CIPs) handle dimming, fault detection, and zero-cross timing autonomously, letting the CPU remain in XLP sleep to reduce standby consumption to the low-uA range.
Recommended
Battery Charger Controller
For single-cell Li-ion / NiMH chargers, the PIC16F1707-I/SO provides the on-chip op-amps needed for current and voltage sense amplification, plus the 10-bit ADC2 for accurate termination detection. The 1.8V-5.5V operating range covers 1S Li-ion (4.2V max) and 2xAA packs without additional regulation. The COG can drive a synchronous buck converter at fixed frequency with programmable dead-time, while the ZCD detects mains zero crossings for AC-input applications. XLP sleep currents in the nA range enable parasitic-power designs where the MCU stays awake on a small sense current. The 3.5KB Flash comfortably fits CC-CV charge algorithms plus safety timers and JEITA temperature profiles.
Recommended
Brushless DC Fan Control
BLDC fan motor control benefits from the PIC16F1707-I/SO's COG, op-amps, and ZCD. The COG generates the complementary PWM pairs required for 3-phase half-bridge drive at 25 kHz with adjustable dead-band, eliminating shoot-through losses. The on-chip op-amps amplify back-EMF signals from floating motor windings for sensorless trapezoidal commutation, reducing external component count. ZCD can detect mains or rotor position zero crossings. The 10-bit ADC samples tacho feedback for closed-loop RPM regulation. With only 18 I/O available in 20-SOIC, BLDC designs must use the Peripheral Pin Select (PPS) feature to remap peripherals flexibly. XLP sleep reduces standby power when the fan is off, important for USB and battery-powered appliances.
Recommended
IoT Sensor Node / Edge Sensing
For battery-powered IoT sensor nodes, the PIC16F1707-I/SO combines a sub-uA XLP sleep mode with integrated 10-bit ADC and two op-amps for direct sensor interface. The on-chip op-amps can amplify low-level signals from thermistors, photodiodes, or wheatstone bridges without external components, reducing BOM and PCB area. UART/I2C/SPI interfaces connect to radios or external sensors. With 3.5KB Flash, the MCU can implement simple protocol stacks (e.g., Modbus RTU, custom UART framing) and sensor linearization algorithms. Peripheral Pin Select (PPS) allows flexible remapping to optimize PCB routing in compact sensor packages. Coin-cell operation (1.8V-3.3V) is supported across the full industrial temperature range.
Recommended
Small Appliance Control
Small appliances such as coffee makers, blenders, and air purifiers use the PIC16F1707-I/SO as the main control MCU. The op-amps monitor motor current, temperature, and water level; the 10-bit ADC handles sensor sampling; and the timers drive triac-based heater control or BLDC motor PWM. With 3.5KB Flash, manufacturers can implement capacitive touch UI (via firmware on PWM/timer pins), safety interlocks, and basic display drivers. The wide 1.8V-5.5V operating range covers mains-rectified 5V supplies and 3.3V logic rails. AEC-Q100 is NOT applicable (not automotive grade), but the industrial -40C to +85C rating handles kitchen environments. Core Independent Peripherals (CIPs) ensure deterministic safety response without software jitter.
Recommended
Industrial Sensor Conditioning Front-End
The PIC16F1707-I/SO's integrated dual op-amps and 10-bit ADC2 with computation (oversampling, averaging, threshold compare) make it ideal for industrial 4-20mA loop transmitters, thermocouple digitizers, and strain gauge signal chains. ADC2 hardware oversampling can improve effective resolution to 12+ bits without CPU overhead, while the op-amps handle bridge excitation and differential amplification. PPS allows the op-amp outputs to be routed to multiple ADC channels for simultaneous sampling. UART output transmits linearized values to PLCs or HMIs. The 5.5V max VDD supports 4-20mA loop power at 24V via external regulation. Industrial -40C to +85C operation is standard.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1707-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1705-I/SO | PIC16F1704-I/SL | PIC16F1507-I/SO | PIC16F1615-I/SL | ATTINY1616-SFR |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SOIC (SO) | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same | 20-SOIC - same |
| Core Architecture | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | PIC16 enhanced mid-range 8-bit | AVR 8-bit (different ISA) |
| Flash Memory | 3.5 KB | 7.2 KB | 3.5 KB | 3.5 KB | 7.2 KB | 16 KB |
| RAM | 256 bytes | 512 bytes | 256 bytes | 128 bytes | 512 bytes | 2 KB |
| Operating Voltage | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V | 1.8V to 5.5V |
| On-chip Op-Amps | 2 | 2 | 1 | 0 | 1 | 0 |
| COG Module | Yes | Yes | No | No | No | No |
| ADC | 10-bit ADC2 | 10-bit ADC2 | 10-bit ADC | 10-bit ADC | 10-bit ADC | 10-bit ADC |
Key Differentiators
- Complementary Output Generator (COG) integrated (vs PIC16F1507-I/SO)
- Dual on-chip operational amplifiers (vs PIC16F1615-I/SL)
- 10-bit ADC2 with computation features (vs PIC16F1704-I/SL)
Design Notes
Place a 100nF decoupling capacitor within 5mm of each VDD pin (pins 8 and 20) and a single 10uF bulk tantalum or ceramic capacitor on the supply rail. For battery-powered designs using XLP sleep modes, add a 1M-ohm pull-down on MCLR to prevent parasitic current paths through the reset network. The PIC16F1707's XLP sleep currents can be sub-1uA only with all unused I/O configured as outputs (low) and peripherals disabled.
When using the on-chip op-amps, route the analog input traces as short as possible, guard them with a ground pour, and avoid running digital signals (PWM, COG outputs) parallel to op-amp inputs to minimize coupling. The Complementary Output Generator (COG) PWM outputs should have series gate resistors (10-100 ohm) for MOSFET EMI control. Crystal traces (OSC1/OSC2) must be kept short and surrounded by ground.
Peripheral Pin Select (PPS) mapping must be configured in firmware for each peripheral pin. The default PPS mapping after reset is locked, so user code must unlock and remap peripherals before first use. Avoid using PIC16F1507 firmware libraries on PIC16F1707 - although the core is similar, register addresses for COG and op-amp control differ. Verify MCLR is pulled high via 10k-ohm resistor; leaving MCLR floating causes erratic reset behavior.
Compliance Information
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - choose automotive-grade PIC16F1707-E/SO variants if needed for automotive. Industrial temperature range -40C to +85C standard.