PIC16LF1827T-I/SS - 8-Bit 32MHz XLP MCU 7KB Flash 20-SSOP | Microchip
MPN: PIC16LF1827T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.45 | $2.45 |
| 10 | $2.2 | $22.00 |
| 100 | $1.95 | $195.00 |
| 500 | $1.78 | $890.00 |
| 1,000 | $1.62 | $1,620.00 |
PIC16LF1827T-I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and configurable peripherals. Within the broader semiconductor taxonomy, the PIC16LF1827 belongs to the 8-bit microcontroller family -> PIC16 family -> PIC mid-range architecture -> embedded microcontroller -> semiconductor IC. The nanoWatt XLP technology lineage traces back to Microchip's PIC16F platform, which uses a 14-bit instruction set and Harvard architecture with separate program and data buses. The mTouch peripheral enables capacitive touch sensing without external components, simplifying user-interface designs.
Key features include up to 32 MHz operation from an internal oscillator, 12-bit ADC with computation, multiple communication peripherals (I2C, SPI, EUSART), 16-bit PWM/timer/capture modules, on-chip temperature indicator, and ultra-low-power sleep current in the nanoAmpere range. The 20-SSOP (Shrink Small Outline Package) offers a compact footprint suitable for space-constrained PCB designs while still allowing hand-soldering and visual inspection. The I-grade temperature rating supports industrial environments including factory automation, sensor nodes, and outdoor instrumentation.
Typical applications span battery-powered IoT sensor nodes, capacitive touch user interfaces, low-power remote controls, HVAC controls, white goods, and portable medical peripherals. The combination of XLP sleep currents below 100 nA and rapid wake-up from sleep makes this MCU particularly suited to energy-harvesting applications. The 32 MHz core provides enough computational headroom for sensor-fusion loops and basic communication stacks (e.g. Modbus, SMBus, or proprietary RF protocols paired with an external transceiver).
When designing with the PIC16LF1827, ensure the supply voltage remains within 1.8 V to 3.6 V for the LF variant - applying 5 V will damage the part. Decouple each VDD pin with a 100 nF ceramic capacitor placed as close as possible to the IC, and follow Microchip's recommended ICSP programming header layout for in-circuit serial programming.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the same PIC16 family, comparison data, and practical design notes that are not aggregated on the manufacturer datasheet alone.
Drop-in alternatives for PIC16LF1827T-I/SS — 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 PIC16LF1827T-I/SS (same form factor and footprint) — differing in ADC, Operating Temperature, Package, Maximum CPU Speed, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1827-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1827-E/SS
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC16LF1827T-I/SO
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →PIC16LF1827T-I/ML
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16F1827T-I/SS
✅ Drop-In✓ In Stock
$0.95 / Unit
View Datasheet →PIC16LF1826T-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC16LF1827T-I/SS Maximum Ratings & Electrical Characteristics
| Family | PIC16F/LF1826/27 |
| Core | 8-bit PIC mid-range |
| Core Size | 8-bit |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| RAM | 384 bytes |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (LF) | 1.8 V to 3.6 V |
| I/O Pins | 16 |
| Package | 20-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Communication Interfaces | I2C, SPI, EUSART |
| ADC | 12-bit ADC with computation |
| PWM | 16-bit (multiple channels) |
| Capacitive Touch | mTouch peripheral |
| Low-Power Technology | nanoWatt XLP |
| RoHS Status | Compliant |
| Programming | ICSP (In-Circuit Serial Programming) |
PIC16LF1827T-I/SS Pin Configuration
| Pin 1 | RA2/AN2 — Bidirectional I/O / Analog input 2 |
| Pin 2 | RA3/AN3 — Bidirectional I/O / Analog input 3 |
| Pin 3 | RA4/AN4 — Bidirectional I/O / Analog input 4 |
| Pin 4 | RA5/AN5 — Bidirectional I/O / Analog input 5 |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RA7/OSC1 — Bidirectional I/O / Oscillator input |
| Pin 7 | RA6/OSC2 — Bidirectional I/O / Oscillator output |
| Pin 8 | RC0 — Bidirectional I/O (PORTC) |
| Pin 9 | RC1 — Bidirectional I/O (PORTC) |
| Pin 10 | RC2 — Bidirectional I/O (PORTC) |
| Pin 11 | RC3 — Bidirectional I/O (PORTC) |
| Pin 12 | RC4 — Bidirectional I/O (PORTC) |
| Pin 13 | RC5 — Bidirectional I/O (PORTC) |
| Pin 14 | RC6 — Bidirectional I/O (PORTC) |
| Pin 15 | RC7 — Bidirectional I/O (PORTC) |
| Pin 16 | RB7 — Bidirectional I/O (PORTB) |
| Pin 17 | RB6 — Bidirectional I/O (PORTB, ICSP PGC) |
| Pin 18 | RB5 — Bidirectional I/O (PORTB) |
| Pin 19 | RB4 — Bidirectional I/O (PORTB) |
| Pin 20 | VDD — Positive supply voltage (1.8V to 3.6V for LF) |
Typical Applications
PIC16LF1827T-I/SS is suitable for 7 applications: Battery-Powered IoT Sensor Nodes, Capacitive Touch User Interfaces, Low-Power Remote Controls, HVAC and White Goods Controls, Portable Medical Peripherals, Industrial Sensor Transmitters, Smart Home and Connected Lighting.
Battery-Powered IoT Sensor Nodes
The PIC16LF1827T-I/SS is ideal for battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology with sleep currents below 100 nA and a 1.8-3.6 V LF operating range. The 32 MHz HFINTOSC wakes the MCU from sleep in microseconds, runs the ADC and a sensor-fusion loop, then returns to sleep for >99% of the time - extending coin-cell operation into years. The 12-bit ADC with computation handles resistive bridges and thermistors without an analog front-end IC, while the integrated EUSART or SPI can drive a sub-GHz or BLE companion transceiver for periodic uplink. With 7 KB Flash and 384-byte RAM, the MCU fits a small RTOS, sensor stack, and TinyML inference code. Engineers should use Sleep/Idle modes between ADC samples, and route the wake-up through an RTCC alarm rather than polling to minimize quiescent current.
Recommended
Capacitive Touch User Interfaces
The PIC16LF1827T-I/SS integrates Microchip's mTouch peripheral, enabling capacitive touch button, slider, and proximity sensing without external touch ICs. The CTMU module charges touch pads through a known current source and measures discharge time on the ADC - any finger contact adds capacitance, changing the count. The 32 MHz CPU processes up to 16 touch channels within a few ms scan time, fast enough for slider tracking. Combined with the 20-SSOP compact package, designers can fit capacitive touch on small appliances, kitchen equipment, and consumer electronics. For LFE integration, the LF 1.8-3.6 V range suits single-cell Li-ion or 2xAA battery packs. Design notes: shield the touch traces with a hatched ground pour and use guard rings for water tolerance, and follow Microchip application note AN1258 for capacitive touch PCB layout.
Recommended
Low-Power Remote Controls
The PIC16LF1827T-I/SS is well suited to handheld remote controls for consumer electronics, garage door openers, and RF key fobs. The LF variant's 1.8-3.6 V range matches a single CR2032 coin cell (3.0 V nominal), while XLP sleep currents in the nanoAmpere range allow multi-year shelf life. The integrated PWM can drive an IR LED directly via a MOSFET gate, and the EUSART can bit-bang a 315/433/868 MHz OOK/FSK transmitter for RF remotes. The 7 KB Flash fits simple protocol stacks (RC5, NEC, or proprietary). With wake-up via a single push-button interrupt on IOC (Interrupt-on-Change), the remote can stay in sleep until the user presses a button - extending battery life dramatically. Apply low-power design tips: disable unused peripherals, run the CPU at 500 kHz when active, and avoid ADC during sleep.
Recommended
HVAC and White Goods Controls
The PIC16LF1827T-I/SS is widely deployed in HVAC controllers, thermostats, washing-machine control boards, and other white goods where the industrial -40C to +85C temperature grade and SSOP-20 surface-mount package are required. The 12-bit ADC reads thermistors for temperature sensing, the PWM drives triac/optocoupler-based AC loads, and the EUSART connects to a main control board for diagnostic reporting. The 256-byte EEPROM stores user settings (setpoint, mode) across power cycles, while the 7 KB Flash fits a full state-machine firmware. The 32 MHz CPU handles closed-loop PID control and the user interface LCD driver. For LF systems the MCU is paired with a 3.3 V LDO; for F systems a 5 V supply is supported. Always use the E-grade (extended temperature) variant for under-hood automotive or outdoor applications.
Recommended
Portable Medical Peripherals
The PIC16LF1827T-I/SS suits battery-powered portable medical peripherals such as blood-pressure monitors, pulse oximeters, glucometers, and electronic thermometers where low-voltage LF operation and XLP sleep currents are essential. The 32 MHz CPU drives the LCD segment display, runs sensor acquisition on the 12-bit ADC, and manages the user-button interface via mTouch. The EUSART outputs data to a Bluetooth Low Energy module (e.g., RN4870) for wireless transfer to a phone or tablet. Medical device designs require IEC 60601-1 and IEC 62304 compliance - the PIC16LF1827 is not AEC-Q100 qualified for automotive use, but its documentation package supports medical FDA submission. Use 2xAA or 1xLi-ion cells, and isolate the analog/digital grounds with a ferrite bead for EMC robustness.
Recommended
Industrial Sensor Transmitters
The PIC16LF1827T-I/SS enables compact 4-20 mA loop-powered or IO-Link sensor heads for industrial process control. The 12-bit ADC with computation handles RTD, thermocouple, or 4-20 mA current-loop input conditioning, while the PWM and timer drive the loop-power modulation. The EUSART talks to a Modbus or IO-Link transceiver. Industrial-grade -40C to +85C operating temperature covers factory-floor environments, and the SSOP-20 package is mechanically robust for through-hole reflow profiles. The 32 MHz core executes digital filtering and linearization algorithms in real time. For hazardous-area installations, add TVS protection on the loop terminals and isolate the MCU from the field wiring with an optocoupler or digital isolator. The PIC16LF1827 is widely used as a cost-effective upgrade from older PIC16F886 designs.
Recommended
Smart Home and Connected Lighting
The PIC16LF1827T-I/SS powers smart-home devices such as connected LED bulbs, smart switches, dimmers, and occupancy sensors. The PWM outputs drive high-brightness LEDs or dimmer MOSFETs, while the EUSART or SPI connects to a Wi-Fi/BLE module (e.g., ESP32 co-processor or RN4871). For battery-powered wireless switches (energy harvesting), the LF 1.8-3.6 V range and XLP sleep allow operation from a single coin cell with multi-year life. The 12-bit ADC reads ambient light sensors for daylight harvesting, and the mTouch peripheral can replace mechanical keys for waterproof smart-switch designs. Apply thermal management: route LED drive current through a separate ground plane to avoid injecting switching noise into the ADC reference. For Zigbee or Thread protocols, pair with an external transceiver.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1827T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1827-I/SS | PIC16LF1827-E/SS | PIC16F1827T-I/SS | PIC16LF1827T-I/SO | PIC16LF1827T-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SOIC (different footprint) | 20-QFN (different footprint) |
| Operating Voltage | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V (F) | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C |
| Flash Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB |
| RAM | 384 bytes | 384 bytes | 384 bytes | 384 bytes | 384 bytes | 384 bytes |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| mTouch Capacitive Sensing | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Wider operating voltage range than basic PIC16F parts (vs PIC16F886 (older 28-pin PIC))
- Integrated mTouch capacitive sensing peripheral (vs PIC16F1823 (earlier 20-pin PIC))
- 32 MHz CPU speed vs 16 MHz legacy PIC16F parts (vs PIC16F877A (older 40-pin PIC))
Design Notes
Estimated: at 32 MHz active current is approximately 6 mA at 3.3 V (about 20 mW). In Sleep mode with XLP, the current drops to under 100 nA. For battery-powered designs, keep the CPU in Sleep or Idle mode between events; route wake-ups through the RTCC alarm or Interrupt-on-Change rather than polling. Disable unused peripherals via the PMD (Peripheral Module Disable) registers to save an additional ~1-2 mA per active module. Always use a regulated LDO (e.g., MCP1700) for the 3.3 V rail to prevent brownouts.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 20) and a bulk 10 uF capacitor on the supply rail. For SSOP-20 layouts, follow Microchip's recommended 4-layer stackup with a continuous ground plane beneath the part. Use 0.1 uF + 10 uF bulk caps on each supply node. Keep the MCLR pull-up (typically 10 kOhm) close to the pin to avoid false resets. For ICSP programming, route PGC/PGD/MCLR/VSS/VPP to a 5-pin 0.1 inch header for field updates. Trace width for VDD/VSS should be 0.3 mm minimum to handle peak currents during flash programming.
Do not exceed 3.6 V on the LF variant (PIC16LF1827) - using a 5 V supply will damage the part. Use the F variant (PIC16F1827) for 5 V systems. The configuration bits must be set before the first instruction executes; if the oscillator configuration is wrong the part will not start (no clock, no instruction fetch). The A/D converter requires the bandgap reference stable time (typically 5 us after enabling) before a conversion. The MSSP peripheral in I2C mode requires the SDA/SCL pins to be configured as inputs with the corresponding TRIS bits set; otherwise the peripheral cannot drive the bus correctly.
For capacitive touch (mTouch) designs, follow Microchip application note AN1258: surround each touch pad with a hatched ground pour to provide a shield, use guard rings for water tolerance, and avoid placing touch traces parallel to noisy signals (PWM, switching regulator). The CTMU current source requires a quiet analog supply - add a ferrite bead between the digital VDD and the analog AVDD rail if separate pins are used. For I2C bus runs, place pull-ups (typically 2.2 kOhm to 4.7 kOhm depending on bus capacitance) close to the master; total capacitance should not exceed 400 pF for reliable 400 kHz Fast Mode operation.
Compliance Information
RoHS compliant per Microchip product page. Industrial -40C to +85C temperature grade. Not AEC-Q100 qualified - choose PIC16F1827-E/SS for automotive applications. Projected EOL 2048-10-03 per Xecor comparison data.
