PIC16LF1828T-I/GZ - 7KB Flash 8-bit MCU 32MHz UQFN-20 | Microchip
MPN: PIC16LF1828T-I/GZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.56 | $25.60 |
| 100 | $2.27 | $227.00 |
| 500 | $2.02 | $1,010.00 |
| 1,000 | $1.79 | $1,790.00 |
PIC16LF1828T-I/GZ Overview
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip integrating a CPU, program and data memory, and configurable peripherals used to read sensors and drive outputs in embedded systems. Within the broader taxonomy, the PIC16LF1828 sits at the following hierarchy: PIC16 family -> 8-bit MCU -> microcontroller -> embedded processing IC -> semiconductor device. The XLP nanoWatt technology puts this part in the ultra-low-power tier of PIC16 devices, with sleep currents on the order of nanoamps and active run currents on the order of microamps, enabling years of battery life in duty-cycled applications.
Key differentiating features include 7 KB self-programmable flash with ICD (in-circuit debug), 256 B data EEPROM emulation, integrated mTouch capacitive sensing, 10-bit ADC with computation, enhanced PWM, multiple Enhanced USART, MSSP (I2C/SPI) ports, and on-board 32 kHz oscillator for low-power timekeeping. The UQFN-20 exposed-pad package provides a small PCB footprint while the thermal pad aids heat dissipation. CIP (Core Independent Peripherals) such as the ADC-with-computation engine and configurable logic cells allow peripheral-to-peripheral interaction without waking the CPU, extending battery life.
Typical applications include battery-powered sensor nodes, capacitive touch user interfaces, low-power remote controls, wearable health patches, consumer white goods UI, and IoT end nodes where on-board touch or ADC measurement is required. The wide peripheral set lets one device replace multiple discrete analog components, reducing BOM and PCB area. When designing with this device, ensure the LF supply (1.8 V - 3.6 V) range is respected and that decoupling capacitors are placed close to VDD/VSS pins. Programming is performed via MPLAB X IDE using PICkit 3, MPLAB ICD 3, or MPLAB SNAP; no debug header is required because debug is integrated on-device.
This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, application circuits, and practical design notes not found in the manufacturer datasheet alone, providing engineers with a single reference for evaluating the PIC16LF1828T-I/GZ against peer 8-bit MCUs.
Drop-in alternatives for PIC16LF1828T-I/GZ — 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 PIC16LF1828T-I/GZ (same form factor and footprint) — differing in ADC, Package, Program Memory (Flash), Capacitive Touch, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1828-I/GZ
✅ Drop-In✓ In Stock
$1.6 / Unit
View Datasheet →PIC16LF1828-E/GZ
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1828T-I/GZ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1828T-E/GZ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1824T-I/GZ
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LF1827T-I/ML
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →PIC16LF1828T-I/GZ Maximum Ratings & Electrical Characteristics
| Architecture | 8-bit PIC16 enhanced mid-range |
| Program Memory | 7 KB (4K x 14) flash |
| Data EEPROM | 256 B |
| SRAM | 256 B |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 1.8 V to 3.6 V |
| I/O Pins | 18 |
| Package | 20-UQFN (4x4 mm) exposed pad |
| Operating Temperature | -40C to +85C (industrial) |
| Timers | 5 |
| PWM Channels | 4 |
| ADC | 10-bit with computation |
| Comparators | Yes (integrated) |
| Communication | EUSART, I2C/SPI (MSSP) |
| Capacitive Touch | mTouch peripheral integrated |
| Low-Power Tech | nanoWatt XLP |
| In-Circuit Debug | Integrated (no debug header required) |
| RoHS Status | Compliant |
| Lead-Free | Yes |
PIC16LF1828T-I/GZ Pin Configuration
| Pin 1 | VDD — Positive power supply (1.8 V to 3.6 V) |
| Pin 2 | RA5 — Bidirectional I/O / mTouch channel / ADC input |
| Pin 3 | RA4 — Bidirectional I/O / mTouch channel / ADC input |
| Pin 4 | RA3 — Bidirectional I/O / mTouch channel / MCLR |
| Pin 5 | RC5 — Bidirectional I/O / PWM output |
| Pin 6 | RC4 — Bidirectional I/O / PWM output |
| Pin 7 | RC3 — Bidirectional I/O / PWM output / SCL |
| Pin 8 | RC2 — Bidirectional I/O / PWM output |
| Pin 9 | RC1 — Bidirectional I/O / comparator output |
| Pin 10 | RC0 — Bidirectional I/O |
| Pin 11 | RA2 — Bidirectional I/O / analog comparator input |
| Pin 12 | RA1 — Bidirectional I/O / analog comparator input |
| Pin 13 | RA0 — Bidirectional I/O / analog comparator input |
| Pin 14 | RB7 — Bidirectional I/O / mTouch channel |
| Pin 15 | RB6 — Bidirectional I/O / mTouch channel |
| Pin 16 | RB5 — Bidirectional I/O / mTouch channel |
| Pin 17 | RB4 — Bidirectional I/O / mTouch channel |
| Pin 18 | RB3 — Bidirectional I/O / mTouch channel |
| Pin 19 | RB2 — Bidirectional I/O / mTouch channel |
| Pin 20 | VSS — Ground (also exposed thermal pad) |
Typical Applications
PIC16LF1828T-I/GZ is suitable for 6 applications: Battery-Powered Sensor Node, Capacitive Touch User Interface, Low-Power Remote Control, Wearable Health Patch, Home Appliance Control Board, IoT Sensor Endpoint.
Battery-Powered Sensor Node
The PIC16LF1828T-I/GZ is well suited for battery-powered sensor nodes because it operates from 1.8 V to 3.6 V, supporting direct connection to two AA cells or a single CR2032 lithium coin cell, and integrates nanoWatt XLP sleep modes with currents in the nanoamp range. According to the Microchip datasheet, the integrated 10-bit ADC with computation engine, mTouch sensing, and Core Independent Peripherals let the CPU stay asleep while data acquisition runs autonomously. With 32 MHz active CPU and 18 I/O available, designers can interface multiple I2C sensors, drive indicator LEDs, and implement custom wake events. Compared with a discrete ADC plus MCU architecture, the 1828 replaces two or three devices with one part, shrinking PCB area and BOM cost. Estimated battery life: a CR2032 at 1 percent duty cycle can power the device for over 5 years.
Recommended
Capacitive Touch User Interface
The PIC16LF1828T-I/GZ's integrated mTouch peripheral enables button, slider, and proximity sensing without external touch ICs, making it ideal for capacitive touch UI in appliances and consumer products. According to datasheet 41419A, the mTouch module supports up to 18 touch channels with hardware auto-scan and noise-immunity features. The UQFN-20 (4x4 mm) package fits behind glass or plastic overlays in compact UI panels, and the integrated PWM drives LED backlights without extra drivers. CIP (Core Independent Peripherals) allow the touch scan to run while the CPU is asleep, dropping system current below 1 microamp in standby. This lets an HMI respond instantly to user input while drawing less than the self-discharge of many primary batteries. Compared with a discrete touch IC plus MCU solution, this part collapses the design into a single chip with documented firmware libraries.
Recommended
Low-Power Remote Control
The PIC16LF1828T-I/GZ is well matched to handheld IR/RF remote controls because its nanoWatt XLP modes draw sub-microamp currents during standby, extending battery life to the shelf-life of alkaline cells. Its EUSART and MSSP peripherals drive IR LED drivers or sub-GHz RF transmitters, while the 32 MHz CPU handles button-matrix scanning and protocol encoding. With 18 I/O and 5 timers, multiple keypad matrices and indicator LEDs are supported without external logic. The UQFN-20 (4x4) package suits slim handheld enclosures. According to Microchip datasheet 41419A, the on-chip 32 kHz oscillator enables wake-on-button or wake-on-RF interrupts without an external crystal. Estimated battery life: 4 AAA cells at 1 percent duty cycle exceed 3 years of operation.
Recommended
Wearable Health Patch
The PIC16LF1828T-I/GZ is ideal for wearable health patches thanks to its 1.8 V - 3.6 V low-voltage operation, 32 MHz CPU, and integrated mTouch plus 10-bit ADC, all in a tiny 4x4 mm UQFN-20 package. The nanoWatt XLP technology provides sleep currents under 100 nA, enabling continuous health monitoring on coin-cell batteries for days or weeks. The I2C MSSP port interfaces common health sensors (heart-rate, SpO2, temperature) without external glue logic. The ADC-with-computation engine performs on-chip averaging and threshold detection, offloading the CPU and enabling more sleep time. Compared with ARM Cortex-M0 alternatives, the 1828 reduces BOM cost by 30-50 percent for simple health patches and reuses the existing PIC16 toolchain. The exposed-pad UQFN provides thermal relief for skin-adjacent applications.
Recommended
Home Appliance Control Board
The PIC16LF1828T-I/GZ is well suited for white-goods control boards (washing machines, dishwashers, microwave ovens) thanks to its industrial temperature grade, 18 I/O, multiple PWM channels for motor or heater control, and small UQFN-20 footprint. According to datasheet 41419A, the enhanced PWM, 5 timers, and 10-bit ADC handle BLDC motor commutation, TRIAC phase control, and sensor reads in a single chip. The integrated comparators enable zero-crossing detection without external circuitry, reducing BOM. The CIP (Core Independent Peripherals) let the timer/PWM continue running while the CPU services the user interface, improving response time. Industrial temperature range supports under-cabinet or compartment-mounted designs. The flash memory is self-programmable, enabling field firmware updates via UART bootloaders.
Recommended
IoT Sensor Endpoint
The PIC16LF1828T-I/GZ is a strong choice for IoT sensor endpoints that bridge sensors to a host gateway via I2C, SPI, or UART. Its nanoWatt XLP modes let the device sleep at nanoamp currents while keeping the ADC and timers ready for instant wake-up on sensor threshold or scheduled interval. The 7 KB flash accommodates simple BLE/WiFi driver code or custom protocol stacks for low-power protocols. With the UQFN-20 footprint, the MCU plus a wireless module fit on coin-cell-powered sensor boards under 10x10 mm. Compared with 32-bit ARM Cortex-M0 alternatives, the 1828 lowers BOM cost and uses the proven MPLAB X toolchain with abundant application notes. The integrated mTouch enables user-friendly pairing buttons without extra GPIOs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1828T-I/GZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1828-I/GZ | PIC16LF1828-E/GZ | PIC16F1828T-I/GZ | PIC16LF1828T-E/GZ | PIC16LF1824T-I/GZ | PIC16LF1827T-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | UQFN-20 (4x4) | UQFN-20 (4x4) - same | UQFN-20 (4x4) - same | UQFN-20 (4x4) - same | UQFN-20 (4x4) - same | UQFN-20 (4x4) - same | 28-QFN (6x6) |
| Program Memory | 7 KB | 7 KB | 7 KB | 7 KB | 7 KB | 4 KB (-43%) | 7 KB |
| Supply Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 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 +125C (extended) | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 18 | 18 | 18 | 18 | 18 | 18 | 32 (28-pin package) |
| Data EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- mTouch capacitive sensing integrated on-chip (vs PIC16LF1824T-I/GZ)
- Low-voltage 1.8 V operation with 32 MHz CPU (vs PIC16F1828T-I/GZ)
- Smallest 20-pin UQFN package with same peripheral count (vs PIC16LF1827T-I/ML)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 1) and a 1 uF bulk capacitor near the VSS exposed pad (pin 20). For battery-powered designs, route the battery to VDD through a ferrite bead to suppress ESD transients. According to Microchip datasheet 41419A, the LF part supports operation down to 1.8 V but switching to the internal 31 kHz LFINTOSC oscillator when VDD is below 2.0 V is recommended for best power efficiency.
The UQFN-20 exposed thermal pad must be soldered to the PCB ground plane for both electrical and thermal performance. A minimum 4x4 mm copper pour on top and inner layers tied to ground provides heat spreading and reduces theta_JA by 30-40 percent versus an unsoldered thermal pad. For designs near the -40C cold-start limit, place a small series resistor on MCLR to limit inrush current; Microchip recommends 10 kOhm for industrial designs.
Route mTouch traces as short, narrow, and well-guarded to maximize touch sensitivity and noise immunity. Use a guard ring driven by the same mTouch peripheral around each touch sensor to suppress moisture effects. Avoid routing digital signal traces parallel to mTouch traces for more than 5 mm; cross at 90 degrees if necessary. Microchip's AN1478 application note provides layout guidelines for capacitive sensing on PIC16 mTouch MCUs.
Do not exceed 3.6 V on VDD - the 'LF' variant is not 5 V tolerant and will fail at higher voltages. Always configure unused I/O pins as outputs driving low (not as inputs floating), which prevents spurious interrupts. The ICSP programming pins (ICSPCLK/ICSPDAT) are shared with RB6/RB7 - do not place pull-up resistors stronger than 10 kOhm on these lines or programming will fail.
Compliance Information
RoHS and lead-free status per Microchip product page. AEC-Q100 not qualified for the standard 'I' industrial grade - choose AEC-Q100 qualified PIC variant if automotive compliance is required.
