PIC12LF1840T39AT-I/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
PIC12LF1840T39AT-I/ST is an 8-bit PIC microcontroller with integrated 315–915 MHz RF transmitter from Microchip, featuring 7 kB Flash and 256 bytes RAM, in a 14-pin TSSOP package.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- PIC12LF1840T39AT-I/ST Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.6600(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 PIC12LF1840T39AT-I/ST?
- Integrated 315 MHz to 915 MHz RF transmitter enabling wireless remote control without external RF ICs
- 8-bit PIC core with 7 kB on-chip Flash for compact firmware in remote sensor and keyless entry designs
- Ultra-low power consumption suitable for coin-cell and battery-operated wireless transmitter nodes
- 14-pin TSSOP package reduces BOM and PCB area in handheld remote and IoT end-node products
What is PIC12LF1840T39AT-I/ST used for?
The PIC12LF1840T39AT-I/ST is purpose-built for low-power wireless transmitter applications such as keyless entry fobs, garage door openers, and home automation remote controls operating in the 315 MHz to 915 MHz ISM bands. Its on-chip RF engine eliminates the need for a separate RF transmitter IC, simplifying the BOM and reducing cost for high-volume consumer products. The device also suits simple sensor-to-gateway telemetry nodes where an 8-bit core with 7 kB Flash is sufficient for encoding and transmitting short data packets.
What are the specifications of PIC12LF1840T39AT-I/ST?
| Manufacturer Package Code | TSSOP-14 |
| Factory Lead Time | 12Weeks |
| YTEOL | 13 |
| Bit Size | 8 |
| CPU Family | PIC |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| On Chip Program ROM Width | 8 |
| 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 |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| 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 PIC12LF1840T39AT-I/ST datasheet?
PIC12LF1840T39AT-I/ST Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for PIC12LF1840T39AT-I/ST?
Compatible alternatives and drop-in replacements for PIC12LF1840T39AT-I/ST:
RISC Microcontroller, 8-Bit, FLASH, PIC CPU, 32MHz, CMOS, PDSO14
Frequently Asked Questions
Which RF frequency bands does the PIC12LF1840T39AT-I/ST transmitter support for wireless remote control?
The PIC12LF1840T39AT-I/ST supports RF transmission across 315 MHz, 433 MHz, 868 MHz, and 915 MHz ISM bands, covering the most common frequencies used worldwide for keyless entry, garage door openers, and home automation remotes. This multi-band capability lets designers select the region-appropriate frequency in a single product variant.
How much on-chip program memory does the PIC12LF1840T39AT-I/ST have for storing wireless control firmware?
The device integrates 7 kB of program Flash and 256 bytes of data RAM, which is sufficient for rolling-code security algorithms, Manchester or FSK encoding routines, and basic power management firmware for a battery-operated 315 to 915 MHz remote transmitter.
In what product categories is the PIC12LF1840T39AT-I/ST most cost-effective compared to discrete microcontroller plus RF IC solutions?
It is most cost-effective in high-volume consumer remotes, tire pressure monitors, and simple wireless sensor nodes where integrating the RF transmitter on the 8-bit PIC core eliminates a separate RF IC, saving PCB space and reducing component count by at least 2 to 3 parts per board.
What does the 14-pin TSSOP package of PIC12LF1840T39AT-I/ST mean for PCB layout of handheld remote designs?
The 14-pin TSSOP package has a 0.65 mm pin pitch and a body width of approximately 4.4 mm, providing a compact and solderable footprint for slim handheld remote PCBs. Its small outline allows designers to fit the transmitter MCU alongside a coin-cell holder in a standard credit-card-size product enclosure.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.3400 | $2.34 |
| 19+ | $2.2000 | $41.80 |
| 100+ | $1.9300 | $193.00 |
| 1000+ | $1.7400 | $1740.00 |
| 5000+ | $1.6600 | $8300.00 |
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