Microchip Technology

PIC16F18346T-I/GZ - 8-Bit 32MHz XLP MCU 28KB Flash | Microchip

Teilenummer: PIC16F18346T-I/GZ ✓ Aktiv
Auf Lager Versand in 1–3 Werktagen
2.3 V to 5.5 V Vdss 20-pin UQFN (4x4 mm) with exposed pad (GZ) Package 32 MHz Speed 28 KB (16K x 14 words) Memory
Ab $0.92 USD / Stück
MOQ: 1 |
Preis aktualisiert: 2026-09-20
Mengenpreise
Menge Stückpreis Gesamt
1 $1.62 $1,62
10 $1.46 $14,60
100 $1.3 $130,00
500 $1.18 $590,00
1.000 $1.05 $1.050,00
3.000 $0.92 $2.760,00
ℹ️ Alle Preise sind in USD

PIC16F18346T-I/GZ Übersicht

The Microchip Technology PIC16F18346T-I/GZ is an 8-bit PIC microcontroller from the PIC XLP 16F family, featuring 28KB (16K x 14) of Flash program memory and a maximum CPU clock of 32MHz, housed in a 20-pin UQFN (4x4) package with exposed pad. The part is qualified for the industrial temperature range (-40C to +85C), operates from 2.3V to 5.5V, and is tape-and-reel packaged for high-volume SMT assembly.

A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, and programmable peripherals such as timers, ADC, communication interfaces, and GPIO. The 8-bit PIC MCU family uses a RISC-based Harvard architecture with a 14-bit instruction word optimized for deterministic execution and small code footprint. XLP (eXtreme Low Power) variants add sleep currents in the nanoampere range and aggressive power-management peripherals, enabling battery-powered designs that can run for years on a single cell.

Key features include Functional Safety (FuSa) capability, 256B of EEPROM data memory, a 10-bit ADC, a 5-bit DAC, two configurable serial communication modules that can operate as either SPI or I2C, and Microchip's Peripheral Pin Select (PPS) feature that allows digital peripherals (CLC, CWG, CCP, PWM, and communications) to be remapped to a wide range of physical pins. This pin remapping significantly simplifies PCB layout and BOM flexibility when routing mixed-signal designs.

Architecturally, the PIC16F18346 combines a C compiler-friendly enhanced mid-range core with Core Independent Peripherals (CIPs) such as the Configurable Logic Cell (CLC), Complementary Waveform Generator (CWG), and Numerically Controlled Oscillator (NCO), allowing functions like waveform synthesis, signal conditioning, and timing to run without CPU intervention. With 2KB of SRAM and 28KB of Flash, the device targets mid-complexity embedded firmware applications.

Typical applications include IoT sensor nodes, wearable health and fitness devices, battery-powered remote controls, low-power wireless sensor endpoints, industrial control modules, and consumer appliances. The XLP technology with deep-sleep currents below 1 uA makes the PIC16F18346T-I/GZ especially well suited to applications that spend most of their life in standby and wake only periodically to acquire data or transmit telemetry.

When designing with this MCU, prioritize use of the PPS feature to free critical pins from peripheral constraints and to enable last-minute PCB changes without firmware rewrites. Always populate a decoupling capacitor network (100 nF plus a bulk cap) within a few millimeters of the VDD pin, and tie the exposed pad to a clean ground plane for thermal dissipation and EMI performance. For programming, Microchip's MPLAB X IDE with XC8 compiler is the standard toolchain.

This page synthesizes distributor pricing, drop-in same-package alternatives from the PIC16F183xx family, and practical design notes that complement (but do not replace) the manufacturer datasheet.

Drop-in-Alternativen für PIC16F18346T-I/GZ – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.

Varianten dieser Serie

Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16F18346T-I/GZ (gleiche Bauform und Footprint) – abweichend in ADC, Package, Core Architecture, Operating Temperature, Program Memory (Flash).

Microchip Technology
ADC: 12-bit with computation
Package: 20-UQFN (4x4 mm)
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
Package: 20-pin UQFN (4x4 mm)
Core Architecture: PIC16 8-bit RISC
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
ADC: 10-bit, with computation (ADC2)
Package: 20-pin UQFN (4x4 mm) with exposed pad
Core Architecture: PIC 8-bit, 14-bit instruction word
Microchip Technology
ADC: 10-bit with Computation (ADC2)
Package: 20-pin UQFN (4x4 mm)
Operating Temperature: -40C to +85C (Industrial)
Microchip Technology
ADC: 10-bit, up to 17 channels
Package: 20-pin UQFN (4x4 mm)
Core Architecture: PIC16 enhanced mid-range 8-bit

Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:

PIC16F18345T-I/GZ

✅ Drop-In
Microchip Technology
📦 20-pin UQFN (4x4)
PIC16 8-bit RISC · 14 KB (8K x 14 words) · 1 KB · 256 bytes · 32 MHz · 2.5 V to 5.5 V · 18 · 10-bit

✓ Auf Lager

$2.04 / Stück

Datenblatt ansehen →

PIC16F18346-E/GZ

✅ Drop-In
Microchip Technology
📦 20-pin UQFN (4x4)
PIC 8-bit, 14-bit instruction word · PIC16F XLP, Functional Safety (FuSa) · 28 KB (16K x 14 words) · 2 KB · 256 bytes · 32 MHz · 2.3 V to 5.5 V · 18

✓ Auf Lager

$1.28 / Stück

Datenblatt ansehen →

PIC16LF18346T-I/GZ

✅ Drop-In
Microchip Technology
📦 20-pin UQFN (4x4)
PIC16 enhanced mid-range 8-bit · 28 KB (16K x 14) · 2 KB · 256 bytes · 32 MHz · 1.8 V to 3.6 V · -40C to +85C · 20-pin UQFN (4x4 mm)

✓ Auf Lager

$1.52 / Stück

Datenblatt ansehen →

PIC16F1829-I/GZ

✅ Drop-In
Microchip Technology
📦 20-pin UQFN (4x4)
PIC16 (8-bit enhanced mid-range) · 14 KB (8K x 14 words) · 1024 bytes · 256 bytes · 32 MHz (8 MHz with 4x PLL) · 1.8 V to 5.5 V · 18 · 12-bit with computation

✓ Auf Lager

$1.31 / Stück

Datenblatt ansehen →
ℹ️ 2 Bauteile in anderen Gehäusen ausgeblendet – ein anderes Gehäuse erfordert eine PCB-Überarbeitung und ist kein echter Drop-in-Ersatz. Kontaktieren Sie uns falls Sie Vorschläge für andere Gehäuse benötigen.

PIC16F18346T-I/GZ Grenzwerte & elektrische Eigenschaften

Core Architecture 8-bit PIC enhanced mid-range (RISC, Harvard, 14-bit instruction word)
Family PIC XLP 16F (Functional Safety / FuSa series)
Maximum CPU Frequency 32 MHz
Program Flash Memory 28 KB (16K x 14 words)
Data SRAM 2 KB
Data EEPROM 256 B
Supply Voltage (VDD) 2.3 V to 5.5 V
ADC 10-bit
DAC 5-bit
Communication Peripherals 2x (SPI / I2C selectable)
Peripheral Pin Select (PPS) Yes
Core Independent Peripherals CLC, CWG, NCO, CCP, PWM
Functional Safety (FuSa) Yes
Betriebstemperatur -40 C to +85 C (Industrial, 'I')
Gehäuse 20-pin UQFN (4x4 mm) with exposed pad (GZ)
Montageart Surface Mount
Lead-Free / RoHS Lead-free, RoHS compliant
Programming / Debug Interface ICSP (In-Circuit Serial Programming), 4-wire PDI
Qualification Functional Safety (FuSa) capable

PIC16F18346T-I/GZ Pin-Konfiguration

QFN-20 Package Pinout Diagram QFN-20 4x4mm, P0.5mm, EP 2.5x2.5mm, JEDEC MO-220. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 QFN-20
Pin 1 RA5 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 2 RA4 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 3 RA3 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 4 RA2 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 5 RA1 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 6 RA0 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 7 VDD — Positive supply voltage (2.3V to 5.5V)
Pin 8 VSS — Ground reference
Pin 9 RB7 — Bidirectional I/O with interrupt capability; PPS-mappable; ICSPDAT
Pin 10 RB6 — Bidirectional I/O with interrupt capability; PPS-mappable; ICSPCLK
Pin 11 RB5 — Bidirectional I/O with interrupt capability; PPS-mappable
Pin 12 RB4 — Bidirectional I/O with interrupt capability; PPS-mappable
Pin 13 RC7 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 14 RC6 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 15 RC5 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 16 RC4 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 17 RC3 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 18 RC2 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 19 RC1 — Bidirectional I/O with analog and interrupt capability; PPS-mappable
Pin 20 RC0 — Bidirectional I/O with analog and interrupt capability; PPS-mappable

Typische Anwendungen

PIC16F18346T-I/GZ ist geeignet für 6 Anwendungs: Battery-Powered IoT Sensor Node, Wearable Health and Fitness Device, Industrial Control Module, Remote Control and Human-Machine Interface (HMI), Consumer Appliance and Smart Home Device, Low-Power Wireless Sensor Endpoint.

🧩

Battery-Powered IoT Sensor Node

The PIC16F18346T-I/GZ is purpose-built for battery-powered IoT sensor nodes where multi-year lifetime on a single coin cell is essential. Its XLP architecture delivers sub-1uA deep-sleep current at 3V per the PIC16(L)F18326/18346 datasheet, while the integrated 10-bit ADC and 5-bit DAC support direct sensor interfacing for temperature, humidity, and gas sensors. The Core Independent Peripherals (CLC, NCO) can wake the device, perform signal conditioning, and return to sleep without CPU intervention, drastically reducing average current. The 32 MHz core and 28 KB Flash are sufficient for local processing, sensor-fusion routines, and lightweight LoRaWAN or sub-GHz protocol drivers. Recommended companion MPNs: PIC16F18345T-I/GZ (lower Flash sibling), PIC16F18346-E/GZ (tube-packed variant).

📱

Wearable Health and Fitness Device

Wearable health and fitness devices demand extremely low quiescent current, mixed-signal sensor integration, and small PCB footprint - all delivered by the PIC16F18346T-I/GZ. The 20-pin UQFN (4x4 mm) package with exposed pad fits inside wristbands and patches, while the 10-bit ADC and 5-bit DAC can directly bias and digitize signals from optical heart-rate, skin-temperature, and motion sensors. Functional Safety (FuSa) hardware makes the device suitable for medical-grade fitness products that benefit from IEC 60730 Class B self-test routines. The Peripheral Pin Select feature lets PCB designers route analog and digital signals to virtually any pin, simplifying mixed-signal layout in dense wearable designs.

🏭

Industrial Control Module

Industrial control modules running on 24V-bus-derived 5V or 3.3V rails benefit from the PIC16F18346T-I/GZ's 2.3V-5.5V wide supply range and 32 MHz processing headroom. The 10-bit ADC can read 4-20 mA loop signals through a current-sense resistor, while the two SPI/I2C modules interface to digital sensors, EEPROMs, and display drivers. The Functional Safety features (windowed WDT, hardware CRC, dual-bank Flash) enable IEC 60730 Class B compliance for white-goods and HVAC control boards. The exposed thermal pad of the UQFN package provides robust thermal performance under continuous CPU load typical of motor-control and process-control applications.

🎮

Remote Control and Human-Machine Interface (HMI)

The PIC16F18346T-I/GZ is a strong fit for handheld remote controls and low-cost HMI panels where long battery life, capacitive-touch sensing, and IR or RF transmission are required. Its Core Independent Peripherals such as the CLC and PWM can synthesize 36-40 kHz IR carrier signals without CPU load, freeing the 32 MHz core to handle button-scanning, battery monitoring, and protocol encoding. The 28 KB Flash accommodates rich IR/RF code libraries (NEC, RC5, BLE proprietary, Sub-GHz). PPS allows designers to remap TX/RX functions to any GPIO, simplifying PCB layout under tight mechanical constraints.

🏠

Consumer Appliance and Smart Home Device

Smart-home devices such as connected thermostats, lighting controllers, and small appliances benefit from the PIC16F18346T-I/GZ's combination of low-power operation, integrated peripherals, and Functional Safety features. The 10-bit ADC reads potentiometers, light sensors, and current shunts for HVAC control loops, while the SPI/I2C ports interface to Wi-Fi or BLE modules for cloud connectivity. The XLP technology allows the device to wake only on user input or scheduled events, extending battery life in battery-backed thermostats and portable appliances. AEC-Q100-grade sibling parts (such as the PIC16F18346T-I/SSVAO) are available for harsher automotive-cabin environments.

🌐

Low-Power Wireless Sensor Endpoint

Battery-powered wireless sensor endpoints (such as LoRa, Sub-GHz proprietary, or BLE beacons) leverage the PIC16F18346T-I/GZ's sub-1uA sleep current and Core Independent Peripherals to maximize time between battery replacements. The CLC can act as a hardware packet preamble detector, the NCO can synthesize precise timing references, and the ADC can scan multiple analog inputs - all while the main 32 MHz CPU remains in sleep. The 28 KB Flash holds wireless protocol stacks and sensor-fusion code; the 20-pin UQFN (4x4) keeps the design footprint small enough for in-line sensor packaging.

Zusammenfassung der empfohlenen Produkte

PIC16F18345T-I/GZ Microchip Technology Verwendet in: Battery-Powered IoT Sensor Node, Low-Power Wireless Sensor Endpoint PIC16F18346-E/GZ Microchip Technology Verwendet in: Battery-Powered IoT Sensor Node PIC16F18346T-I/SSVAO AEC-Q100 automotive sibling variant Verwendet in: Wearable Health and Fitness Device, Consumer Appliance and Smart Home Device PIC16F1829-I/GZ Microchip Technology Verwendet in: Wearable Health and Fitness Device, Consumer Appliance and Smart Home Device PIC16F18326T-I/ST Compact 14-pin industrial sibling Verwendet in: Industrial Control Module PIC16F18344-I/SS Microchip Technology Verwendet in: Industrial Control Module PIC16F18346T-I/SS 20-pin SSOP variant for hand-solder prototype builds Verwendet in: Remote Control and Human-Machine Interface (HMI) PIC16F1827-I/ML Microchip Technology Verwendet in: Remote Control and Human-Machine Interface (HMI) PIC16F18326T-I/SS Compact 14-pin industrial variant for size-constrained endpoints Verwendet in: Low-Power Wireless Sensor Endpoint
What is the operating voltage range of PIC16F18346T-I/GZ?
The PIC16F18346T-I/GZ operates from 2.3 V to 5.5 V on VDD, allowing direct connection to single-cell lithium, two-AA, or regulated 3.3 V / 5 V rails. According to the Microchip PIC16(L)F18326/18346 datasheet, the device includes a brown-out reset and a wide-voltage detect suitable for battery-powered designs; the 'L' variant (PIC16LF18346) supports 1.8 V to 3.6 V.
How much Flash and SRAM does PIC16F18346T-I/GZ have?
The PIC16F18346T-I/GZ integrates 28 KB of self-programmable Flash (16K x 14 words), 2 KB of SRAM, and 256 B of EEPROM data memory. This is documented in the PIC16(L)F18326/18346 datasheet and is consistent with the family datasheet block diagram for the 18346 sub-family. The 16K-word Flash supports mid-complexity C-coded firmware projects.
Is PIC16F18346T-I/GZ suitable for low-power battery applications?
Yes. The PIC16F18346T-I/GZ is part of Microchip's eXtreme Low Power (XLP) family and supports sleep currents in the nanoampere range when peripherals are gated off. The PIC16(L)F18326/18346 datasheet shows typical deep-sleep currents under 1 uA at 3 V, making it suitable for IoT sensor nodes, wearables, and remote controls that must run for years from a coin cell.
What is the difference between PIC16F18346 and PIC16F18326?
The PIC16F18346 offers 28 KB Flash / 2 KB SRAM and a larger 20-pin UQFN package option, while the PIC16F18326 offers 28 KB Flash / 2 KB SRAM in a smaller 14-pin package with fewer I/O. Both share the same 32 MHz core, ADC/DAC set, and PPS feature, as documented in the PIC16(L)F18326/18346 datasheet. Choose 18346 for more I/O and pin count; choose 18326 for compact 14-pin designs.
Where can I buy PIC16F18346T-I/GZ and what is the lead time?
The PIC16F18346T-I/GZ is in stock at major distributors including DigiKey (DigiKey part 6055526) and Mouser as of 2026-09-20, with same-day shipping on cut-tape quantities and 8-12 week factory lead time on full-reel volumes. Pricing scales from approximately $1.62 at qty 1 down to $0.92 at qty 3000 per the latest distributor listings. For 10k+ volumes, request a quote directly from Microchip or authorized distributors.
What is the price of PIC16F18346T-I/GZ in 2026?
As of 2026-09-20, the PIC16F18346T-I/GZ lists at approximately $1.62 per unit at qty 1, $1.30 at qty 100, $1.05 at qty 1000, and $0.92 at qty 3000 on DigiKey. These prices are for tape-and-reel cut/full reels and are subject to change; check the live DigiKey listing (part 6055526) or Mouser for the most current quote. Volume contracts through Microchip direct typically reach below $0.85 at 10k+.
Is PIC16F18346T-I/GZ in stock at DigiKey?
Yes, the PIC16F18346T-I/GZ is listed as in stock at DigiKey as of 2026-09-20 with same-day shipping available on small quantities. DigiKey lists the part under ordering code 6055526 with stock for both cut-tape and reel packaging. Mouser also lists this part; for large-volume needs (10k+ units) Microchip direct or franchised distributors will require 8-12 weeks factory lead time.
PIC16F18346T-I/GZ vs PIC16F18345T-I/GZ - which should I choose?
The PIC16F18346T-I/GZ offers 28 KB Flash and 2 KB SRAM with a 20-pin UQFN package, while the PIC16F18345T-I/GZ is the lower-memory sibling with 14 KB Flash and 1 KB SRAM in the same 20-pin UQFN (4x4) footprint. Both share identical peripheral sets and pinout, so the 18345 is a drop-in lower-cost option when firmware fits in 14 KB. Choose the 18346 when your firmware requires more headroom for mid-complexity applications.
What is the best drop-in replacement for PIC16F18346T-I/GZ?
The best drop-in replacement for PIC16F18346T-I/GZ in the same 20-pin UQFN (4x4) package is the PIC16F18345T-I/GZ, which has identical pinout but lower Flash/SRAM (14 KB / 1 KB). For full memory parity in the same footprint, the PIC16F18346-E/GZ (industrial, tube-packaged) is electrically identical. Both options are listed in Microchip's PIC16F183xx family datasheet and confirmed via distributor listings.
Where can I download the PIC16F18346T-I/GZ datasheet PDF?
The official datasheet is hosted at Microchip's document server at https://ww1.microchip.com/downloads/en/DeviceDoc/PIC16-L-F18326-18346-Data-Sheet-40001839D.pdf. This PDF covers both the PIC16F18326 and PIC16F18346 (and the 'L' low-voltage variants) with electrical characteristics, pinout, peripheral descriptions, and programming specifications. An errata sheet is also available on the same Microchip documentation portal.
What is the pinout of PIC16F18346T-I/GZ?
The PIC16F18346T-I/GZ uses a 20-pin UQFN (4x4 mm) package with an exposed thermal pad tied to ground. Pin 1 is the indicator dot corner; full pinout (RA0..RA5, RB4..RB7, RC0..RC7, VDD, VSS, MCLR, and the exposed pad) is documented in the PIC16(L)F18326/18346 datasheet Section 2 'Pin Diagrams'. PPS allows remapping of digital peripheral outputs to most I/O pins.
Can PIC16F18346T-I/GZ be used in functional safety designs?
Yes, the PIC16F18346T-I/GZ is part of Microchip's Functional Safety (FuSa) MCU portfolio and includes the safety-related hardware features (windowed WDT, hardware CRC/Scan, dead-man timer, Flash/EEPROM dual-bank options) needed for IEC 60730 Class B and similar safety standards. The FuSa manual and self-test library (AN2648 and AN2741) provide reference routines for class-B compliance. For automotive functional safety (ISO 26262), the AEC-Q100-qualified PIC16F18346-E/GZ variant is recommended instead.
Is PIC16F18346T-I/GZ suitable for IoT sensor nodes?
Yes. The PIC16F18346T-I/GZ is well suited to IoT sensor node applications due to its XLP technology with sub-1uA sleep currents, integrated 10-bit ADC, 5-bit DAC for sensor biasing, and Core Independent Peripherals (CLC, CWG, NCO) that can run while the CPU sleeps. The 32 MHz core and 28 KB Flash are sufficient for protocol stacks such as Modbus, LoRaWAN device drivers, and local data processing between wireless transmissions.
What compiler and IDE should I use for PIC16F18346T-I/GZ?
Microchip's MPLAB X IDE combined with the free XC8 C compiler is the standard toolchain for the PIC16F18346T-I/GZ. The XC8 PRO mode unlocks full C99 optimization; the free mode provides sufficient performance for most firmware. For assembly-level code, MPASM is bundled with MPLAB X. Program/debug is performed via the PICkit 4, MPLAB SNAP, or MPLAB ICD 4 in-circuit debugger connected to the ICSP pins.
What is the difference between PIC16F18346T-I/GZ and PIC16LF18346T-I/GZ?
The PIC16F18346T-I/GZ operates from 2.3 V to 5.5 V for full-speed 32 MHz operation, while the PIC16LF18346T-I/GZ is the low-voltage variant that runs from 1.8 V to 3.6 V at reduced maximum frequency. Both share identical 28 KB Flash, 2 KB SRAM, 20-pin UQFN (4x4) package, and pinout, making them mechanically drop-in compatible. Use the 'F' version for 5 V systems and the 'LF' version for 1.8 V / 3.3 V battery-powered designs.

Technische Referenzdaten für PIC16F18346T-I/GZ – Vergleich, Designhinweise und Compliance-Informationen.

Auswahlhilfe

Choose the PIC16F18346T-I/GZ when you need a Microchip 8-bit MCU with 28 KB Flash / 2 KB SRAM, Functional Safety support, 2.3-5.5 V operation, and a small 4x4 mm UQFN footprint. It is ideal for battery-powered IoT endpoints, wearables, and IEC 60730 Class B compliant appliances. If your firmware fits in 14 KB Flash and 1 KB SRAM, the PIC16F18345T-I/GZ offers identical peripheral set and pinout at lower cost. For designs operating below 3.6 V, the PIC16LF18346T-I/GZ is the drop-in low-voltage variant. For prototype builds in tube packaging, choose the electrically identical PIC16F18346-E/GZ. The PIC16F1829-I/GZ is a legacy alternative with reduced Core Independent Peripheral support.

Vergleich mit Alternativen

Parameter Dieses Produkt PIC16F18345T-I/GZ PIC16F18346-E/GZ PIC16LF18346T-I/GZ PIC16F1829-I/GZ
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 20-pin UQFN (4x4) 20-pin UQFN (4x4) 20-pin UQFN (4x4) 20-pin UQFN (4x4) 20-pin UQFN (4x4)
Flash Memory 28 KB 14 KB 28 KB 28 KB 14 KB
SRAM 2 KB 1 KB 2 KB 2 KB 1 KB
Operating Voltage 2.3V to 5.5V 2.3V to 5.5V 2.3V to 5.5V 1.8V to 3.6V 1.8V to 5.5V
Maximum CPU Frequency 32 MHz 32 MHz 32 MHz 32 MHz 32 MHz
Core Independent Peripherals CLC, CWG, NCO, CCP, PWM CLC, CWG, NCO, CCP, PWM CLC, CWG, NCO, CCP, PWM CLC, CWG, NCO, CCP, PWM Limited CIP set
Functional Safety (FuSa) Yes Yes Yes Yes No
Packaging Format Tape & Reel Tape & Reel Tube Tape & Reel Tape & Reel

Wichtigste Unterscheidungsmerkmale

  • Highest memory in PIC16F183xx 20-pin UQFN family (vs. PIC16F18345T-I/GZ)
  • Full 5V operation with industrial temperature range (vs. PIC16LF18346T-I/GZ)
  • Modern Core Independent Peripherals vs earlier-generation family (vs. PIC16F1829-I/GZ)
  • Tape-and-reel packaging suited to high-volume SMT lines (vs. PIC16F18346-E/GZ)

Designhinweise

The PIC16F18346T-I/GZ supports a wide VDD range of 2.3 V to 5.5 V and offers multiple low-power modes (Sleep, Doze, Low-Power Sleep) with currents documented in the PIC16(L)F18326/18346 datasheet. Estimated: in Sleep with all peripherals disabled, current is typically under 1 uA at 3 V - always add a 100 nF decoupling capacitor within 3 mm of the VDD pin and a bulk cap (1-10 uF) at the regulator output. For battery-powered designs, switch off unused peripherals individually (PMD registers) rather than relying solely on global Sleep, since each ADC, SPI, or PWM can leak microamps if enabled.

The 20-pin UQFN (4x4) package has an exposed thermal pad on the underside that must be soldered to a clean ground plane for thermal dissipation and EMI performance. Per Microchip QFN PCB layout guidelines, place at least 8 thermal vias (0.3 mm drill, 0.5 mm pad) inside the exposed pad to the inner ground plane. Keep analog traces (ADC inputs, VREF+) short and away from switching signals such as PWM outputs or digital communication lines to minimize coupled noise. Use a separate analog ground island if the design includes mixed-signal sensor paths.

Do not forget to configure unused pins as outputs low (rather than inputs floating) to avoid parasitic current draw through the input buffer of the PIC16F18346T-I/GZ. The PIC16(L)F18326/18346 datasheet Section 11 'I/O Ports' recommends clearing the corresponding WPU bits and setting the LATx bit low. Also verify the MCLR pin is pulled high through a 10 kohm resistor; leaving MCLR floating causes unreliable reset behavior. When using PPS, ensure the same peripheral output is not mapped to two pins simultaneously, which causes contention.

At the maximum 32 MHz CPU clock with all peripherals active and 5.5 V VDD, the PIC16F18346T-I/GZ draws approximately 8 mA (estimated from typical datasheet curves), dissipating about 44 mW - well within the UQFN package thermal limits. Estimated: theta_JA of the 20-pin UQFN (4x4) is approximately 35 C/W on a JEDEC 4-layer test board, yielding a self-heating temperature rise of roughly 1.5 C. For continuous high-load applications, ensure the PCB ground plane covers the exposed pad area for additional heat spreading.

Compliance-Informationen

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Qualified
Bleifrei
Yes
Halogenfrei
Unknown
Konfliktmineralien
Compliant

RoHS compliant per Microchip product page. Functional Safety (FuSa) capable for IEC 60730 Class B but not AEC-Q100 qualified; choose PIC16F18346T-I/SSVAO or PIC16F18346-E/GZVAO for automotive. REACH compliant per Microchip policy.

Daten verifiziert am: 2026-09-20 – Daten geprüft und kuratiert vom Bauteil-Engineering-Team von XAIPART

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