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The S2-LP is a high performance ultra-low power RF transceiver, intended for RF wireless applications in the sub-1 GHz band. It is designed to operate in both the license-free ISM and SRD frequency bands at 433, 512, 868 and 920 MHz, but can also be programmed to operate at other additional frequencies in the 413-479 MHz, 452-527 MHz, 826-958 MH, 904-1055 MHz bands.
The S2-LP supports different modulation schemes: 2(G)FSK, 4(G)FSK, OOK and ASK. The air data rate is programmable from 0.1 to 500 kbps.
The S2-LP can be used in systems with channel spacing down to 1 kHz enabling the narrow band operations.
The S2-LP shows an RF link budget higher than 140 dB for long communication ranges and meets the regulatory requirements applicable in territories worldwide, including Europe, Japan, China and the USA.Key Features
- Frequency bands:
- 413-479 MHz (S2-LPQTR)
- 452-527 MHz (S2-LPCBQTR)
- 826-958 MHz (S2-LPQTR)
- 904-1055 MHz (S2-LPCBQTR)
- Modulation schemes:
- 2(G)FSK, 4(G)FSK
- OOK, ASK
- Air data rate from 0.1 to 500 kbps
- Ultra-low power consumption:
- 7 mA RX
- 10 mA TX @ +10 dBm
- Excellent performance of receiver sensitivity: down to -130 dBm
- Excellent receiver selectivity and blocking
- Programmable RF output power up to +16 dBm
- Programmable RX digital filter
- Programmable channel spacing
- Fast start-up and frequency synthesizer settling time
- Automatic frequency offset compensation, AGC and symbol timing recovery
- More than 145 dB RF link budget
- Battery indicator and low battery detector
- RX and TX 128 bytes FIFO buffers
- 4-wire SPI interface
- Automatic packet acknowledgment and retransmission
- Embedded timeout protocol engine
- Excellent receiver selectivity (> 80 dB @ 2 MHz)
- ST companion integrated balun/filter chips are available
- Antenna diversity algorithm
- Fully integrated ultra-low power RC oscillator
- Wake-up driven by internal timer or external event
- Digital real time RSSI
- Flexible packet length with dynamic payload length
- Programmable preamble and SYNC word quality filtering and detection
- Embedded CSMA/CA engine based on listen-before-talk systems
- IEEE 802.15.4g hardware packet support with whitening, FEC, CRC and dual SYNC word detection
- Wireless M-BUS supported
- KNX-RF supported
- Enables operations in the SIGFOX™ and MONARCH networks
- Suitable to build systems targeting:
- Europe: ETSI EN 300 220, category 1.5 natively compliant, ETSI EN 303 131
- US: FCC part 15 and part 90
- Japan: ARIB STD T67, T108
- China: SRRC
- Operating temperature range: -40 °C to +105 °C
- Frequency bands:
Featured Videos
With today’s technologies, users can also receive an alert on their phone or a wearable device. ST’s S2-LP, sub-1GHz RF transceiver and the TSU111 operational amplifiers together with STM32 enable such enhanced alarms.
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Product Specifications (1)
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User Manuals (1)
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| 15 Sep 2020 |
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Errata Sheets (1)
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Design Notes & Tips (3)
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Flyers (2)
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Brochures (1)
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EDA Symbols, Footprints and 3D Models
STMicroelectronics - S2-LP
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| S2-LPCBQTR |
Active
|
QFN-24L | Industrial | Ecopack3 |
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| S2-LPQTR |
Active
|
QFN-24L | Industrial | Ecopack3 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| S2-LPCBQTR | 3 distributors | Buy Direct |
Active
|
EAR99 | NEC | Tape And Reel | QFN-24L | -40 | 105 | PHILIPPINES | 1.4375 / 1k | |
| S2-LPQTR | 7 distributors |
Active
|
EAR99 | NEC | Tape And Reel | QFN-24L | -40 | 105 | PHILIPPINES | 1.4375 / 1k | ||
Marketing Status
ActiveECCN (US)
EAR99Budgetary Price (US$)*/Qty
1.4375 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
