PIC16F18446-I/GZ Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The PIC16F18446-I/GZ is an 8-bit PIC microcontroller with 28 KB flash, 2 KB RAM, a 32 MHz maximum clock, and integrated EUSART, SPI, and I2C peripherals in a compact 20-pin UQFN package. It features a 10-bit ADC, operates from 2.3 V to 5.5 V, and includes low-power modes for battery-driven IoT applications. Available from stock worldwide with standard lead times.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PIC16F18446-I/GZ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PIC16F18446-I/GZ?
- 28 KB flash and 2 KB RAM with 32 MHz maximum clock frequency for responsive embedded control in an ultra-compact 20-pin UQFN footprint
- Integrated EUSART, SPI, and I2C peripherals plus 10-bit ADC enable sensor interfacing without external components
- Operates from 2.3 V at 16 MHz enabling direct battery operation from 2-cell alkaline or single-cell Li-ion sources
What is PIC16F18446-I/GZ used for?
The PIC16F18446-I/GZ is used in low-power sensor nodes, home automation modules, and portable medical monitoring devices where a compact 8-bit MCU must interface with I2C sensors and communicate over UART or SPI within a tight 20-pin PCB footprint. Its 2.3 V minimum operating voltage and deep-sleep modes make it suitable for coin-cell or energy-harvesting designs that require months of autonomous operation.
What are the specifications of PIC16F18446-I/GZ?
| Manufacturer Package Code | UQFN-20 |
| Factory Lead Time | 8Weeks |
| Date Of Intro | 2017-12-21 |
| YTEOL | 19 |
| Has ADC | YES |
| Additional Feature | IT ALSO OPERATES AT 2.3V MIN AT 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | PIC16 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | S-PQCC-N20 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 1 |
| Number of I/O Lines | 18 |
| Number of Serial I/Os | 1 |
| Number of Timers | 9 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.16SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| RAM (bytes) | 2048 |
| ROM (words) | 16384 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 4.8mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.a.2 |
| HTS Code | 8542.31.00.15 |
| Country of Origin | Thailand |
Where can I find the PIC16F18446-I/GZ datasheet?
PIC16F18446-I/GZ Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC16F18446-I/GZ?
Compatible alternatives and drop-in replacements for PIC16F18446-I/GZ:
Comparator, DAC, PWM, CCP, CLC, NCO, CWG,
Frequently Asked Questions
What memory resources does PIC16F18446-I/GZ provide and how does that affect embedded firmware size?
The PIC16F18446-I/GZ includes 28 KB of program flash and 2 KB of data RAM. This is sufficient for moderately complex firmware including a lightweight RTOS, sensor driver libraries, and communication stack for I2C or SPI peripherals, making it a practical choice for projects that outgrow 8 KB or 16 KB devices without stepping up to a 32-bit MCU.
At what minimum supply voltage can PIC16F18446-I/GZ operate and why does that matter for battery designs?
The PIC16F18446-I/GZ operates down to 2.3 V at clock frequencies up to 16 MHz, enabling direct operation from a single-cell lithium-ion battery discharged below 3 V or from two AA alkaline cells nearing end-of-life. This extends usable battery life in remote sensor applications without requiring a boost converter to maintain a fixed 3.3 V or 5 V supply.
Which communication interfaces are built into PIC16F18446-I/GZ and what external components can they replace?
The PIC16F18446-I/GZ integrates EUSART for RS-232 or RS-485 communication, SPI for fast peripheral connections up to several MHz, and I2C operating in both master and slave modes at 100 kHz or 400 kHz. These on-chip peripherals eliminate the need for external UART bridge chips or discrete level shifters in most sensor and display driver applications.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5900 | $1.59 |
| 10+ | $1.4900 | $14.90 |
| 25+ | $1.4200 | $35.50 |
| 100+ | $1.3500 | $135.00 |
| 1000+ | $1.2400 | $1240.00 |
| 5000+ | $1.1800 | $5900.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit