Overview
Packaging
- MLP-16 (3X3 mm)
Order Codes
- SH3100IMLTR: 3000 pcs Tape & Reel Only
- SH3100IMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
PB Free/ROHS
Learn More →Features
- Master HFDCO oscillator which can be programmed to between 8 MHz and 33.5 MHz with 2 kHz resolution. Free-runs with ± 0.5% accuracy over temperature, or can be locked to the 32.768 kHz crystal oscillator.
- A32.768 kHz crystal oscillator with 5-bit programmable padding capacitance giving a frequency adjustment resolution of 4 ppm to allow compensation for crystal variations over temperature. Used for accurate real time clocking and as an accurate frequency source towhich the master HFDCO oscillator can be locked.
- 2 clock outputs, each of which can be powered independently from VDD or VBAK and can operate either in-phase or in complementary mode. Both are derived from the HFDCO clock with independent postscaling to give frequencies down to 32.768 kHz on CLK0 and 244 Hz on CLK1. When running in battery backup mode, the 32.768 kHz internal system clock can be output on CLK1.
- An internal oscillator which is fuse-calibrated to provide a 32.768 kHz clock source as an integrated alternative to the crystal oscillator. Accuracy is better than± 3% over temperature and supply voltage. This oscillator starts immediately on power-up. If an external crystal is present, the crystal oscillator takes over once it has stabilized.
- 96-bit electrically programmable nonvolatile fuse memory array used for internal calibration and to program various on-chip configuration functions.
- 7-bit programmable threshold reset comparator which generates a system reset at a selected VDD supply voltage (VBO)between 1.7 V and 4 V with 24 mV resolution. Reset is implemented as active low output.
- Programmable reset duration between 6 ms and 5.3 seconds
- Less than 10 µA standby current and less than 12 mA maximum operating current (excluding LDO load)
- I2C interface with 3-bit fuse-settable address to allow multi-drop capability. Can operate up to 1 MHz. Complies with I2C fast mode specification.
- General-purpose 8-bit DAC and comparator used to monitor VDD, VBAK, internal temperature, or an analog input from the SNSE pin. Can be programmed to implement a simple low speed (1 ms) ADC.
- General-purpose PWM &PDM output which can be either directly controlled via the I2Cinterface or programmed for use as automatic fan speed control in conjunction with the on-chip temperature measurement
- Programmable watchdog counter with a 7.8 ms resolution up to 8 seconds delay
- Periodic interrupt timer (PIT) with a 30 µs resolution up to 36 hours
- Realtime clock with 1/256 second resolution up to Year 2099 with day,month, year calendar and leap year adjustment; includes RTC alarm
- Spread spectrum option on the output clock to offer up to 3% of frequency energy spreading around the programmed center frequency
- Battery backup facility, which maintains register contents and RTC operation when VDD collapses. Backup current consumption is less than 2 µA.
- 1.7 V to 5.5 V operating range on the main VDD supply
- 0.9 V to 5.5 V operating range on the battery backup supply (VBAK)
- Edge-triggered, level-sensitive, and toggling interrupt output (INT)
- General-purpose I/O option on the interrupt pin (INT)
- Low power, low dropout voltage regulator (LDO) output on PWM pin
- Switched mode boost, bootstrap boost, and buck regulation control
- 56 bytes of control registers including a 9-byte scratchpad
- Small 3 mm x 3 mm 16-lead MLP package
Inventory
| Product | Country | Distributor | Qty | Buy |
|---|
Resources
A Growing Crisis Demands Smart Solutions
Spain loses 25% of its water to leaks1. Portugal loses 33%2. Meanwhile, Catalonia's reservoirs have reached historic lows and Portugal's Algarve region has imposed severe restrictions with dams at just 20% capacity.The Iberian Peninsula faces a growing water crisis.
Spain has emerged as a significant adopter of Advanced Metering Infrastructure with LoRaWAN® as the leading choice of IoT connectivity, with over 647,000 LoRaWAN-enabled water meters already deployed—and the European Union (EU) is backing expansion through its Strategic Projects for Economic Recovery and Transformation (PERTE) funding program.
BLOG
The Smart Water Revolution: How LoRaWAN® is…The evolution of smart metering has transformed how utilities collect and manage metering and consumption data. At the heart of this digital transformation of utilities lies the wireless M-Bus (wM-Bus) protocol, a wireless communication protocol for automated meter reading that has been adopted for over 20 years through the standard defined by the European Normalization Committee (CEN) under the standard series EN13757, encompassing Europe and beyond. In this blog post, we'll explore our recent demo featuring the Semtech LR1121 and LR2021, and discuss how enabling the dual connectivity for wM-Bus and LoRaWAN® is today’s demand of utilities for Smart Metering.
BLOG
wM-Bus and LoRaWAN® Demo with LR1121 and LR2021The 2010s marked a defining decade for Semtech as the company accelerated its transformation into a connectivity and sensing powerhouse. Building on the foundation established in previous decades, Semtech made strategic moves that positioned it at the forefront of several high-growth technology markets, including the Internet of Things (IoT), advanced surge protection and high-speed optical networking.
BLOG
Semtech in the 2010s: Low-Power Networking, Surge…The Things Conference 2025, held in Amsterdam, attracted over 2,000 participants, featured 180 speakers and 250 presentations, making it a significant event in the IoT calendar. Semtech was notably prominent, reflecting its leadership in the LoRa® ecosystem. The conference highlighted the growing global adoption of LoRa technology, with Semtech's advancements in LoRa Plus™ and 4th-generation devices underscoring its commitment to innovation and scalability in Internet of Things (IoT) solutions. The event served as a platform for industry leaders to discuss the future of IoT connectivity, emphasizing the role of LoRa in enabling the multiple verticalsrelyingon IoTto enhance operational efficiencies and sustainability.
BLOG
The Things Conference 2025: LoRa® Ecosystem…For many years, wireless communication technology has faced a trade-off between achieving long transmission ranges and supporting high data rates. Semtech’s LR2021, the first radio in the LoRa Plus™ line, incorporates 4th Generation LoRa® IP with an innovative Fast Long-Range Communication (FLRC) modulation, enabling data rates of up to 2.6 Mbps on both sub-GHz and 2.4 GHz frequency bands. This advanced modulation supports diverse applications, including reliable image transfer over extensive distances with strong penetration through materials, all while maintaining the low power requirements necessary for battery-powered devices.
BLOG
Fast Long-Range Communication: Semtech® LR2021…Talk With Us Today
Semtech is here to help. When you have questions, our experts have answers.