PIC16F1619T-I/SO - 8-bit MCU, 14KB Flash, 32MHz, 20-SOIC | Microchip
MPN: PIC16F1619T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.1 | $2.10 |
| 10 | $1.88 | $18.80 |
| 100 | $1.65 | $165.00 |
| 500 | $1.45 | $725.00 |
| 1,000 | $1.28 | $1,280.00 |
| 3,300 | $1.12 | $3,696.00 |
PIC16F1619T-I/SO Overview
Key features include a 10-bit ADC, Capture/Compare/PWM (CCP), 24-bit Signal Measurement Timer (SMT), Zero-Cross Detect, and the eXtreme Low Power (XLP) technology that characterizes this family. The -I temperature grade suffix denotes industrial -40C to +85C operation, while the -T suffix indicates tape-and-reel packaging for high-volume assembly. The 20-pin SOIC footprint provides a familiar, breadboard-friendly and reflow-solderable form factor used across the PIC16F1xxx family.
Technically, the PIC16F1619 belongs to Microchip's enhanced mid-range PIC16 core with a 14-bit instruction word, hardware multiplier, and a peripheral pin-select (PPS) block that remaps digital I/O to most device pins. The 24-bit SMT can capture time-of-flight, frequency, period, and pulse-width measurements with sub-microsecond resolution, while the Zero-Cross Detect block enables AC-line synchronous triggering for TRIAC or SSR control in motor and lighting applications. Internal oscillator accuracy is trimmed at the factory to within ±1% typical.
Typical applications include small BLDC and stepper motor control, ceiling-fan and HVAC triac-based phase-angle control, white-goods and appliance user-interface boards, LED lighting drivers with dimming, and general-purpose 8-bit embedded control replacing discrete logic. Functional-safety features support IEC 60730 Class B household appliance requirements, where the MCU performs self-diagnostics on clock, supply, and program-flow integrity.
When designing with this part, allocate 4 bytes of the configuration word for oscillator and watchdog settings and reserve a PPS lock sequence before reassigning I/O. For motor-drive boards, route the Zero-Cross Detect input through a 100k series resistor and a 100V TVS clamp to meet surge requirements. Verify the trailing 'T' in the MPN specifies the tape-and-reel quantity you need for production.
Drop-in alternatives for PIC16F1619T-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 PIC16F1619T-I/SO (same form factor and footprint) — differing in ADC, Core, I/O Pins, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16F1619-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1619-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16F1619T-I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.52 / Unit
View Datasheet →PIC16F1619T-I/SO Maximum Ratings & Electrical Characteristics
| Product Family | PIC® XLP™ 16F (PIC16F161x) |
| Core | 8-bit PIC16 enhanced mid-range (14-bit instruction word) |
| Program Memory (Flash) | 14 KB (8K x 14 words) |
| SRAM | 1 KB |
| CPU Speed | 32 MHz (8 MIPS) |
| Operating Voltage Range | 2.5V to 5.5V (supports 2.5V / 3.3V / 5V operation) |
| ADC | 10-bit, multiple channels |
| Package | 20-pin SOIC (SO), 7.50 mm body width |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (-40C to +85C) |
| Packaging Form | Tape & Reel (suffix T) |
| I/O Pins | Up to 18 (package-dependent) |
| Special Features | 24-bit SMT, Zero-Cross Detect, CCP, Peripheral Pin Select (PPS), Functional Safety (FuSa), XLP low-power |
| RoHS Status | Compliant |
| Lead-Free | Yes (per Microchip product page) |
PIC16F1619T-I/SO Pin Configuration
| Pin 1 | RA3/MCLR/VPP — General-purpose I/O / Master Clear (reset) / Programming voltage |
| Pin 2 | RA0 — General-purpose I/O (PPS-capable) |
| Pin 3 | RA1 — General-purpose I/O (PPS-capable) |
| Pin 4 | RA2 — General-purpose I/O (PPS-capable) |
| Pin 5 | RA4 — General-purpose I/O |
| Pin 6 | RA5 — General-purpose I/O |
| Pin 7 | RC0 — General-purpose I/O (PPS-capable) |
| Pin 8 | RC1 — General-purpose I/O (PPS-capable) |
| Pin 9 | RC2 — General-purpose I/O (PPS-capable) |
| Pin 10 | RC3 — General-purpose I/O (PPS-capable) |
| Pin 11 | RC4 — General-purpose I/O (PPS-capable) |
| Pin 12 | RC5 — General-purpose I/O (PPS-capable) |
| Pin 13 | RB4 — General-purpose I/O (interrupt-on-change) |
| Pin 14 | RB5 — General-purpose I/O (interrupt-on-change) |
| Pin 15 | RB6 — General-purpose I/O (PPS-capable, ICDCLK) |
| Pin 16 | RB7 — General-purpose I/O (PPS-capable, ICPDAT) |
| Pin 17 | VSS — Ground reference |
| Pin 18 | VDD — Positive supply voltage (2.5V to 5.5V) |
| Pin 19 | RA6 — General-purpose I/O (also OSC2) |
| Pin 20 | RA7 — General-purpose I/O (also OSC1) |
Typical Applications
PIC16F1619T-I/SO is suitable for 6 applications: Small BLDC and PMSM Motor Control, IEC 60730 Class B Household Appliances, AC-Line Phase-Angle and TRIAC Dimming, User-Interface and HMI Boards, LED Lighting Drivers with Dimming, General-Purpose 8-bit Embedded Control.
Small BLDC and PMSM Motor Control
The PIC16F1619T-I/SO fits 1-shunt or 3-shunt sensorless BLDC motor drive boards thanks to its 32 MHz core executing FOC loops in 8 MIPS, the 24-bit SMT capturing Hall-sensor or BEMF edges with sub-microsecond resolution, and the 10-bit ADC sampling phase currents within 2 us conversion windows. The 14 KB Flash accommodates Microchip's AN1078 sensorless FOC library (typical 9-11 KB), leaving room for application code. Industrial -40C to +85C operation tolerates motor bay environments, while XLP sleep modes cut standby current under 50 nA - useful for battery-backed ceiling fans and appliance pumps. Connect the CCP/PWM outputs to gate-driver inputs and route Zero-Cross Detect to the AC mains interface for combined motor-and-line control.
Recommended
IEC 60730 Class B Household Appliances
The PIC16F1619T-I/SO carries Functional Safety (FuSa) hardware that lets white-goods designers meet IEC 60730 Class B self-test requirements for washing machines, dryers, induction cooktops, and dishwashers. The on-chip clock-monitor, WDT window, and Flash CRC peripheral run Class B self-test routines automatically, while the 14 KB Flash holds both the application and the safety-library stubs. Zero-Cross Detect synchronizes TRIAC firing to the AC mains zero crossing for safe phase-angle control of heater elements. Operate the part at 5V from a 3.3V LDO plus diode-OR backup to ride out brown-outs in mains-side appliance boards.
Recommended
AC-Line Phase-Angle and TRIAC Dimming
The PIC16F1619T-I/SO's integrated Zero-Cross Detect block synchronizes to the AC mains zero crossings and triggers the on-chip CCP modules to fire a TRIAC or opto-isolated SSR after a programmed phase delay, enabling phase-angle dimming for lamp banks, ceiling fans, and heater banks. The 32 MHz core computes firing angles at 60 Hz/50 Hz line frequency with sub-microsecond accuracy, while the 10-bit ADC reads a potentiometer or 0-10V dim signal and converts it to firing delay in real time. The 14 KB Flash holds custom dimming curves (logarithmic, square-law) and the 1 KB SRAM buffers ramping state. Industrial temperature grade covers enclosed fixture environments, and XLP sleep modes save power when the lamp is off.
Recommended
User-Interface and HMI Boards
The PIC16F1619T-I/SO serves as the master MCU on a white-goods or appliance user-interface board, scanning capacitive-touch pads, rotary encoders, and 7-segment or TFT LCD displays while communicating with a host power-stage MCU via UART or I2C. Its Peripheral Pin Select (PPS) block remaps UART, I2C, and SPI to any RPn pin, simplifying PCB routing when a display connector is relocated. The 10-bit ADC reads NTC thermistors for temperature feedback, and the 24-bit SMT measures long press durations and button-debounce intervals. Running at 32 MHz, the core drives a 4-line character LCD with 5x8 font without external controller ICs, and XLP sleep keeps standby current negligible.
Recommended
LED Lighting Drivers with Dimming
The PIC16F1619T-I/SO implements constant-current LED drivers by combining its 10-bit ADC for current-sense feedback, its CCP modules for PWM dimming at up to 32 kHz without flicker, and the 24-bit SMT for precise DALI-2 or 0-10V dim timing. The 14 KB Flash fits DALI-2 IEC 62386 protocol stacks while leaving headroom for fixture-specific calibration tables. The 2.5V-5.5V supply range supports both battery-powered and mains-fed driver topologies. Place the part near the LED strings with 100V-rated PCB isolation and route the ADC reference through a low-TCXO buffer to maintain brightness accuracy across temperature.
Recommended
General-Purpose 8-bit Embedded Control
The PIC16F1619T-I/SO serves as a general-purpose 8-bit controller in sensor hubs, simple protocol bridges, battery chargers, and IoT edge nodes where Cortex-M0+ would be overkill. The 32 MHz CPU executes UART bootloader, I2C slave, and basic PID control loops within 14 KB Flash, while the 1 KB SRAM handles 8-byte-deep protocol buffers. Peripheral Pin Select remaps digital functions to any I/O pin, freeing PCB layout from rigid signal constraints. The industrial -40C to +85C temperature grade supports outdoor enclosures, and the XLP sleep modes extend battery life in wireless sensor nodes to multi-year runtime. Add a 32.768 kHz crystal for RTC accuracy where needed.
Recommended
Recommended Products Summary
Engineering reference data for PIC16F1619T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16F1619-I/SO | PIC16F1619-E/SO |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (SO) | 20-SOIC (SO) | 20-SOIC (SO) |
| Flash Memory | 14 KB (8K x 14) | 14 KB | 14 KB |
| SRAM | 1 KB | 1 KB | 1 KB |
| CPU Speed | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS | 32 MHz / 8 MIPS |
| Operating Voltage | 2.5V to 5.5V | 2.5V to 5.5V | 2.5V to 5.5V |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| Packaging Form | Tape & Reel (T suffix) | Tube (no T suffix) | Tube (no T suffix) |
| Functional Safety (FuSa) | Yes (IEC 60730 Class B peripherals) | Yes (same die) | Yes (same die) |
| Zero-Cross Detect | Yes | Yes | Yes |
Key Differentiators
- Built-in 24-bit Signal Measurement Timer for high-precision motor and line timing (vs PIC16F15356T-I/SO)
- Integrated Zero-Cross Detect peripheral eliminates external comparator circuitry (vs PIC16F1613-I/P)
- Functional Safety (FuSa) peripherals accelerate IEC 60730 Class B compliance (vs PIC16F1509-I/SO)
Design Notes
Place a 100 nF decoupling capacitor within 3 mm of the VDD pin (pin 18) and a 10 uF bulk capacitor on the same supply rail. The PIC16F1619T-I/SO draws 5-8 mA active at 32 MHz and under 50 nA in XLP sleep; verify the LDO can source the worst-case active current including ADC sampling bursts.
Reserve the ICSPDAT/ICSCLK pins (RB6/RB7 on 20-SOIC) for in-circuit serial programming access - do not place small passives within 2 mm of these pins or in-circuit programming will require board rework. Route MCLR/VPP (pin 1) through a 10 kohm pull-up to VDD with a 100 nF capacitor to ground for proper reset behavior.
Always issue the PPSLOCK unlock sequence before reassigning Peripheral Pin Select mappings at runtime, otherwise writes to RPINRx/RPORx registers are silently ignored. When migrating code from PIC16F1613 (smaller Flash) to PIC16F1619, the additional register banks require updating the BANK_SEL macros in your linker script or you will read stale SFR values.
For Zero-Cross Detect input on the AC mains, place a 100 kohm series resistor immediately at the pin and a 100 V bidirectional TVS to ground within 5 mm to clamp line transients. Keep the trace length under 10 mm to avoid capacitive pickup that can shift the zero-crossing trigger by hundreds of microseconds, breaking TRIAC timing.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified (industrial grade only). Functional Safety (FuSa) peripherals support IEC 60730 Class B but the part itself is not automotive-qualified - use PIC16F1619-E/SO for extended-temperature industrial applications.
