PIC16F685-I/SS Microchip Integrated Circuit (Small Outline Packages) In Stock
The PIC16F685-I/SS is an 8-bit PIC microcontroller from Microchip with 7 KB Flash, integrated ADC, and a maximum clock frequency of 20 MHz in a 20-pin SSOP package. It operates down to 2 V at 8 MHz, making it well-suited for battery-powered sensing and control applications. Available in tape-and-reel format with 5-week lead time for cost-effective embedded designs.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F685-I/SS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 7 KB Flash program memory with integrated ADC enables sensor data acquisition and control logic in a single low-cost 8-bit device
- Operates down to 2 V supply voltage at 8 MHz clock, extending battery runtime in portable and coin-cell-powered applications
- 20 MHz maximum clock frequency supports real-time control tasks and mid-speed communication protocols in compact SSOP-20 form factor
Applications
The PIC16F685-I/SS is designed for cost-sensitive embedded control applications such as home appliance controllers, battery-powered sensor nodes, and small industrial automation modules where an 8-bit MCU with on-chip ADC and minimal external components is required. Its 2 V minimum operating voltage at 8 MHz makes it suitable for two-AA battery or single lithium-coin-cell powered designs in remote sensors, LED lighting controllers, and keypads. The device is also used in motor control, HVAC thermostats, and consumer electronics where low-cost programmatic control with 7 KB Flash is sufficient for the firmware footprint.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SSOP-20 |
| Factory Lead Time | 5Weeks |
| YTEOL | 8 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 2V SUPPLY AT 8 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 20MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 2 |
| Number of I/O Lines | 18 |
| Number of Serial I/Os | 1 |
| Number of Timers | 2 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 7168 |
| ROM Programmability | FLASH |
| Screening Level | AEC-Q100; TS 16949 |
| Speed | 20MHz |
| Supply Current-Max | 5.45mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 4.5V |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PIC16F685-I/SS:
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
RISC Microcontroller, 8-Bit, FLASH, PIC16 CPU, 20MHz, CMOS, PDSO20
Frequently Asked Questions
What is the minimum supply voltage at which the PIC16F685-I/SS can operate, and at what clock speed?
The PIC16F685-I/SS can operate at a minimum supply voltage of 2 V when clocked at up to 8 MHz, which is sufficient for typical sensor polling and control tasks. This low-voltage operation extends usable battery life in applications powered by two AA alkaline cells, which drop below 3 V as they discharge, or from a single lithium CR2032 coin cell at approximately 2.8 V.
How does the 7 KB Flash on the PIC16F685-I/SS compare to typical firmware sizes for small embedded control tasks?
7 KB of Flash accommodates approximately 3500 to 4000 instructions in PIC16 assembly, or roughly 2000 to 3000 lines of equivalent C code with a lightweight compiler. This is adequate for sensor polling routines, PID control loops, UART or I2C communication handlers, and simple state machines, covering the majority of home appliance and IoT edge node firmware requirements without needing a larger and more expensive MCU.
Which sensing applications benefit from combining the PIC16F685-I/SS on-chip ADC with its 2 V operating range?
The integrated ADC of the PIC16F685-I/SS directly digitizes analog sensor outputs such as NTC thermistor voltage dividers, light-dependent resistors, and resistive strain gauges without an external ADC chip. At 2 V supply, the ADC reference can use the internal voltage reference, enabling accurate 10-bit measurements of sensor signals in battery-powered temperature monitors, light sensors, and humidity detectors operating from a 2-cell alkaline or CR123 lithium battery.
For a compact PCB design, what does the SSOP-20 package of the PIC16F685-I/SS offer compared to a DIP-20 version?
The 20-pin SSOP package of the PIC16F685-I/SS measures approximately 7.2 mm x 5.3 mm with a 0.635 mm pin pitch, which is about 60% smaller in PCB footprint than a DIP-20 package measuring 25.4 mm x 7.62 mm. This compact surface-mount form factor makes the PIC16F685-I/SS suitable for single-layer or two-layer boards in appliances, smart sensors, and consumer devices where through-hole DIP components are no longer practical.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.1900 | $2.19 |
| 7+ | $2.1220 | $14.85 |
| 90+ | $1.9500 | $175.50 |
| 100+ | $1.8000 | $180.00 |
| 1000+ | $1.6400 | $1640.00 |
| 5000+ | $1.5600 | $7800.00 |
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