PIC16LF1769T-I/SS - 8-Bit MCU 14KB Flash 32MHz 20-SSOP | Microchip
MPN: PIC16LF1769T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.98 | $1.98 |
| 10 | $1.78 | $17.80 |
| 100 | $1.55 | $155.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.1 | $1,100.00 |
PIC16LF1769T-I/SS Overview
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path CPU, integrating flash program memory, RAM, peripherals (ADC, timers, communication blocks), and I/O pins on one die. The PIC16 architecture executes one instruction per clock cycle using a Harvard RISC core, so the 32 MHz oscillator delivers up to 8 MIPS of deterministic throughput. The 'LF' suffix denotes the low-voltage variant (1.8-3.6 V) and the 'T' suffix denotes tape-and-reel packaging for high-volume SMT assembly.
Key features of the PIC16LF1769T-I/SS include four 10-bit ADC channels with internal voltage reference, two on-chip operational amplifiers configurable for signal conditioning, four 16-bit timers, a 10-bit PWM module with complementary outputs, zero-cross detect for AC line sensing, and high-current I/O capable of sourcing/sinking higher than typical MCU pins. The XLP technology delivers sub-microamp sleep currents for battery-powered applications. The 20-SSOP package measures 5.30 mm wide and is footprint-compatible with other PIC16F176x and PIC16F1764/1765 family members, simplifying PCB reuse across product variants.
Typical applications include LED lighting controllers with dimming, sensor signal conditioning using the on-chip op amps, AC zero-cross switching for triac/SCR control, battery-powered IoT sensor nodes, and consumer white-goods control boards. The PIC16LF1769T-I/SS provides enough Flash and RAM for state-machine control loops with analog feedback while staying within tight cost and power budgets.
Drop-in alternatives for PIC16LF1769T-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 PIC16LF1769T-I/SS (same form factor and footprint) — differing in Package, ADC, Operating Temperature, Core, High-Current I/O.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1769-I/SS
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC16F1769-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16F1769T-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$1.78 / Unit
View Datasheet →PIC16LF1768-I/SS
✅ Drop-In✓ In Stock
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View Datasheet →PIC16LF1769-E/SS
✅ Drop-In✓ In Stock
$0.79 / Unit
View Datasheet →PIC16LF1769T-I/SS Maximum Ratings & Electrical Characteristics
| Core | 8-bit PIC16 RISC (Harvard) |
| Instruction Set | PIC16 (one instruction per clock cycle) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| Data RAM | 1 KB |
| Maximum CPU Speed | 32 MHz (8 MIPS) |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) |
| ADC | 10-bit, multiple channels |
| Internal Op Amps | Yes (on-chip, configurable) |
| Timers | Multiple 8-bit and 16-bit timers |
| Zero-Cross Detect | Yes |
| PWM | 10-bit PWM with complementary outputs |
| High-Current I/O | Yes (sink/source > standard GPIO) |
| Low-Power Technology | XLP (eXtreme Low Power) |
| Package | 20-SSOP (0.209", 5.30 mm width) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC16LF1769T-I/SS Pin Configuration
| Pin 1 | RA2 — Bidirectional I/O / analog input / op-amp output |
| Pin 2 | RA3 — Bidirectional I/O / analog input / ZCD reference |
| Pin 3 | RA4 — Bidirectional I/O / analog input |
| Pin 4 | RA5 — Bidirectional I/O / analog input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB4 — Bidirectional I/O / analog input / high-current |
| Pin 7 | RB5 — Bidirectional I/O / analog input / high-current |
| Pin 8 | RB6 — Bidirectional I/O / ICSPCLK / high-current |
| Pin 9 | RB7 — Bidirectional I/O / ICSPDAT / high-current |
| Pin 10 | VDD — Positive supply voltage (1.8-3.6 V) |
| Pin 11 | RC0 — Bidirectional I/O / analog input |
| Pin 12 | RC1 — Bidirectional I/O / analog input / op-amp output |
| Pin 13 | RC2 — Bidirectional I/O / analog input |
| Pin 14 | RC3 — Bidirectional I/O / analog input |
| Pin 15 | RC4 — Bidirectional I/O / analog input |
| Pin 16 | RC5 — Bidirectional I/O / analog input |
| Pin 17 | RC6 — Bidirectional I/O / TX/CK (serial) |
| Pin 18 | RC7 — Bidirectional I/O / RX/DT (serial) |
| Pin 19 | RA0 — Bidirectional I/O / analog input / op-amp in- |
| Pin 20 | RA1 — Bidirectional I/O / analog input / op-amp in+ |
Typical Applications
PIC16LF1769T-I/SS is suitable for 6 applications: Dimmable LED Lighting Controller, AC Zero-Cross Switch / Solid-State Relay, Battery-Powered IoT Sensor Node, Consumer Appliance Control Board, Sensor Signal Conditioning Front-End, Portable Medical Monitoring Device.
Dimmable LED Lighting Controller
The PIC16LF1769T-I/SS is purpose-built for dimmable LED lighting controllers. Its 10-bit PWM module with complementary outputs drives high-current LED strings via external MOSFETs, while the on-chip operational amplifiers provide direct current-sense feedback without external op-amp ICs. The integrated zero-cross detect peripheral synchronizes phase-angle dimming to AC mains, eliminating flicker in triac-controlled retrofits. At 32 MHz the CPU executes 8 MIPS, enough for adaptive dimming algorithms and color-mixing routines in RGBW fixtures. The 14 KB Flash accommodates table-driven gamma correction, while the 1.8-3.6 V XLP supply range supports battery-backed emergency lighting.
Recommended
AC Zero-Cross Switch / Solid-State Relay
The PIC16LF1769T-I/SS's dedicated zero-cross detect peripheral simplifies AC line switching designs such as solid-state relays and triac controllers. The ZCD module senses mains zero-crossings directly, allowing the MCU to fire the triac at the optimal phase angle for minimum EMI and inrush current. The 10-bit PWM generates precise firing pulses while the high-current I/O pins drive the triac gate directly. The XLP sleep mode under 1 uA lets battery-backed designs monitor the AC line indefinitely. The 20-SSOP package fits inside a small SSR housing with the AC sensing circuitry on the same PCB.
Recommended
Battery-Powered IoT Sensor Node
The PIC16LF1769T-I/SS is ideal for battery-powered IoT sensor nodes thanks to XLP (eXtreme Low Power) technology delivering nanoWatt sleep currents below 1 uA. The 1.8-3.6 V supply range supports two AA alkaline cells from fresh to end-of-life, while the on-chip 10-bit ADC paired with internal op amps interfaces directly with temperature, humidity, and pressure sensors without external signal conditioning. The 32 MHz CPU wakes from sleep in microseconds to process sensor data and return to sleep, maximizing battery life to multi-year durations. The 14 KB Flash holds small RTOS kernels or bare-metal sensor-fusion routines.
Recommended
Consumer Appliance Control Board
The PIC16LF1769T-I/SS is well suited for consumer appliance control boards such as coffee makers, washing machines, and air purifiers. The 14 KB Flash stores user-interface state machines, while the on-chip op amps condition sensor signals for temperature, humidity, and water-level measurement. The 10-bit PWM drives solenoid valves, pumps, and indicator LEDs with smooth control. The 20-SSOP package is industry-standard for appliance control PCBs and reflow-solders cleanly in high-volume production. The XLP technology also supports battery-backed clock functions for timer-equipped appliances.
Recommended
Sensor Signal Conditioning Front-End
The PIC16LF1769T-I/SS integrates two on-chip operational amplifiers that act as a programmable-gain instrumentation front-end for bridge sensors, thermocouples, and photodiodes. The op amps feed directly into the 10-bit ADC, eliminating external instrumentation amplifiers in many designs. The 32 MHz CPU performs digital filtering, linearization, and calibration routines in real time. With 14 KB Flash the MCU can hold lookup tables for sensor linearization curves. The 20-SSOP package keeps the analog front-end compact, and XLP sleep mode below 1 uA lets battery-powered sensor assemblies idle for years.
Recommended
Portable Medical Monitoring Device
The PIC16LF1769T-I/SS is suitable for portable medical monitoring devices such as pulse oximeters, glucometers, and temperature patches. The 10-bit ADC paired with on-chip op amps interfaces with optical, electrochemical, and thermistor sensors. The XLP technology delivers sub-microamp sleep currents critical for multi-day wearable battery life, and the 1.8-3.6 V supply supports coin-cell or lithium-polymer batteries. The 14 KB Flash holds sensor calibration data and simple display drivers, while the 20-SSOP package fits inside compact wearable enclosures. Industrial temperature range (-40C to +85C) handles sterilization and body-temperature extremes.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1769T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1769-I/SS | PIC16F1769-I/SS | PIC16LF1768-I/SS | PIC16LF1769-E/SS |
|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 7 KB (-50%) | 14 KB |
| RAM | 1 KB | 1 KB | 1 KB | 512 B (-50%) | 1 KB |
| Maximum CPU Speed | 32 MHz (8 MIPS) | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage (Vdd) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V (F variant) | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) |
| Internal Op Amps | Yes (multiple) | Yes | Yes | Reduced count | Yes |
| Zero-Cross Detect | Yes | Yes | Yes | Yes | Yes |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Key Differentiators
- Largest Flash in PIC16F176x 20-pin family (vs PIC16LF1768-I/SS)
- Lower voltage range than F variant (vs PIC16F1769-I/SS)
- Industrial temperature range optimized for appliance/consumer (vs PIC16LF1769-E/SS)
Design Notes
The PIC16LF1769T-I/SS operates from 1.8 V to 3.6 V on its VDD pin (pin 10). Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of the pin and a bulk 10 uF capacitor near the supply entry point. For battery applications using two AA cells, include a low-dropout bypass to handle transient loads when waking from sleep. The XLP sleep current is below 1 uA, so a properly decoupled supply is essential to avoid false wake-ups from supply droop. Estimated: total quiescent current at 3.3 V in sleep is approximately 0.6 uA per datasheet typical curves.
The 20-SSOP package has 0.65 mm pitch and is sensitive to solder bridging. Use a fine-pitch stencil (0.15 mm thickness) and reflow profile per IPC/JEDEC J-STD-020 for moisture-sensitive components. Keep analog signal traces (op-amp inputs, ADC channels) short and away from PWM switching nodes to minimize digital noise coupling. The exposed lead frame on SSOP is not a thermal pad, so heat dissipation relies on copper pours connected to VDD/VSS pins. Place a ground pour on the bottom layer stitching through to top-layer ground with multiple vias.
Do not exceed the 3.6 V VDD maximum - the LF variant is NOT 5 V tolerant on I/O. Configure unused I/O pins as outputs low to minimize sleep current. The zero-cross detect (ZCD) peripheral requires careful resistor divider design on the AC line; incorrect impedance can damage the pin or cause false triggering. The ICSPDAT/ICSPCLK pins (RB6/RB7) must be accessible for in-circuit programming - do not place series resistors above 10 kohm on these pins. The op amps share pins with digital I/O; configure the analog functions before enabling the digital outputs to avoid contention.
When using the on-chip op amps as signal-conditioning front-ends, route the analog input traces differentially and guard them with a ground trace to reject common-mode noise. The ADC acquisition time must be programmed to allow the internal sample capacitor to settle - typical 10-bit acquisition requires at least 1.5 us at 32 MHz. For ZCD-based AC line sensing, add a 100 kohm series resistor to limit surge current and a 100 pF capacitor to filter high-frequency noise. Estimated: at 50 Hz/60 Hz line frequency, the ZCD event rate is twice the line frequency (100 Hz/120 Hz), giving 8.3 ms or 10 ms between zero-crossings.
Compliance Information
RoHS compliant per Microchip product page. Lead-free finish (NiPdAu) per Microchip packaging specifications. Not AEC-Q100 qualified; choose PIC16F1769-E/SS for extended-temperature applications or contact Microchip for automotive-grade variants.
