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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5900 | $1.59 |
| 10+ | $1.4900 | $14.90 |
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| 100+ | $1.3500 | $135.00 |
| 1000+ | $1.2400 | $1240.00 |
| 5000+ | $1.1800 | $5900.00 |
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