PIC12LF1840T48AT-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC12LF1840T48AT-I/ST is an 8-bit PIC microcontroller with integrated FSK RF transmitter operating at 418 MHz and 433 MHz, housed in a compact 14-pin TSSOP package. It runs up to 32 MHz and includes ADC, DAC, and a 1.8 V minimum supply option. Designed for low-power wireless sensor and remote-control applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- PIC12LF1840T48AT-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5000(MOQ 2500)
- 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 PIC12LF1840T48AT-I/ST?
- Integrated FSK RF transmitter operating at 418 MHz and 433 MHz bands
- 8-bit PIC core running up to 32 MHz with 1.8 V minimum supply operation
- On-chip ADC and DAC channels for analog signal conditioning
- 14-pin TSSOP package enabling compact wireless PCB designs
- JTAG boundary scan for in-system test and programming
- Low-power nanoWatt XLP technology optimized for coin-cell battery operation
What is PIC12LF1840T48AT-I/ST used for?
PIC12LF1840T48AT-I/ST is purpose-built for short-range wireless applications such as garage door openers, keyless entry fobs, and home automation remote controls transmitting on the 433 MHz ISM band. Its integrated FSK transmitter and 8-bit PIC core reduce external component count to as few as 3 passives, enabling single-chip wireless sensor nodes that operate from a 1.8 V to 3.6 V coin cell. The TSSOP-14 form factor and low standby current make it a practical choice for ultra-compact wearable sensor transmitters and asset tracking tags.
What are the specifications of PIC12LF1840T48AT-I/ST?
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 4Weeks |
| YTEOL | 3 |
| Has ADC | YES |
| Additional Feature | ALSO OPERATES AT 1.8V MINIMUM SUPPLY AT 16 MHZ |
| Bit Size | 8 |
| Boundary Scan | YES |
| CPU Family | PIC |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 6 |
| On Chip Program ROM Width | 14 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| RAM (bytes) | 256 |
| ROM (words) | 4096 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 3.3mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Where can I find the PIC12LF1840T48AT-I/ST datasheet?
PIC12LF1840T48AT-I/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC12LF1840T48AT-I/ST?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which RF frequency bands does PIC12LF1840T48AT-I/ST transmit on and what modulation does it use?
PIC12LF1840T48AT-I/ST supports FSK (frequency-shift keying) transmission on the 418 MHz and 433 MHz ISM bands, which are license-free in most regions. FSK modulation provides better noise immunity than OOK at the same transmit power level, allowing reliable data rates up to several kbps over distances of 30 m to 100 m in open environments.
What is the minimum supply voltage for PIC12LF1840T48AT-I/ST and how does it extend battery life in wireless nodes?
The device operates from a minimum supply of 1.8 V at up to 16 MHz, enabling direct operation from a depleted CR2032 coin cell that typically drops to 2.0 V near end of life. Combined with nanoWatt XLP sleep currents below 50 nA, a wireless sensor node can sustain years of periodic 433 MHz transmissions on a single 230 mAh coin cell.
Does PIC12LF1840T48AT-I/ST include analog peripherals and how are they used in sensor transmitter designs?
Yes, PIC12LF1840T48AT-I/ST integrates a 10-bit ADC with multiple input channels and at least one DAC output channel. The ADC reads analog sensor signals such as temperature or humidity voltages, while the DAC can trim the transmit carrier frequency or generate a reference voltage, reducing external component count and BOM cost by eliminating a dedicated sensor ADC IC.
How compact is the PIC12LF1840T48AT-I/ST footprint and what PCB constraints should designers account for?
The 14-pin TSSOP package measures approximately 5 mm × 4.4 mm with a 0.65 mm pin pitch, making it one of the smallest PIC MCU packages integrating an RF transmitter. Designers should keep the RF output trace under 10 mm and connect a 50-ohm matched antenna stub or PCB trace antenna to maximize transmitted power and regulatory compliance at 433 MHz.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500+ | $1.5000 | $3750.00 |
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