component
MICRF211AYQS-TR
Public Made by Adomby adom
Microchip Tech RF Transceiver ICs, QSOP-16-150mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MICRF211AYQS-TR
Microchip Tech · RF Transceiver ICs · QSOP-16-150mil
MICRF211AYQS-TR from Microchip Tech, in a QSOP-16-150mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RO1 | passive | Reference resonator input connection to the Colpitts oscillator stage, which may also be driven by an external reference signal of 1.5V p-p amplitude maximum. |
| 2 | GNDRF | power_in | Negative supply connection associated with the ANT RF input. |
| 3 | ANT | input | RF signal input from the antenna, internally AC coupled, with a matching network to RF ground recommended to improve ESD protection. |
| 4 | GNDRF | power_in | Negative supply connection associated with the ANT RF input. |
| 5 | VDD | power_in | Positive supply connection for all chip functions, operating from 3.0V to 3.6V. |
| 6 | SQ | input | Squelch control logic input with an active internal pull-up when not shut down. |
| 7 | SEL0 | input | Logic control input with active internal pull-up, used with SEL1 to control the demodulator low pass filter bandwidth. |
| 8 | SHDN | input | Shutdown logic control input with active internal pull-up. |
| 9 | GND | power_in | Negative supply connection for all chip functions except the RF input. |
| 10 | DO | output | Demodulated data output. |
| 11 | SEL1 | input | Logic control input with active internal pull-up, used with SEL0 to control the demodulator low pass filter bandwidth. |
| 12 | CTH | passive | Demodulation threshold voltage integration capacitor connection, with values above 1nF recommended across CTH and GND to set the data slicing settling time. |
| 13 | CAGC | passive | AGC filter capacitor connection, normally greater than 0.47µF, connected from this pin to GND. |
| 14 | RSSI | output | Received signal strength indication output from a buffer with 200Ω typical output impedance. |
| 15 | NC | unconnected | Not connected; connect to ground. |
| 16 | RO2 | passive | Reference resonator input connection to the Colpitts oscillator stage, with 7pF in parallel with a low resistance MOS switch to GND during normal operation, driven by the startup excitation circuit during internal startup. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QSOP-16-150mil |
| Category | RF & Radio |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (VDD) | VDD | 5 | V | 3 | |||
| Input Voltage | 5 | V | 3 | ||||
| Junction Temperature | 150 | ºC | 3 | ||||
| Lead Temperature (soldering) | 260 | °C | 10 sec | 3 | |||
| Storage Temperature | TS | -65 | 150 | ºC | 3 | ||
| Maximum Receiver Input Power | 10 | dBm | 3 | ||||
| ESD Rating CDM | 2 | kV | CDM | 3 | |||
| ESD Rating HBM | 200 | V | HBM | 3 | |||
| ESD Rating Machine Model | 100 | V | Machine Model | 3 | |||
| Supply Voltage (VDD) operating | VDD | 3 | 3.6 | V | 3 | ||
| Ambient Temperature (TA) | TA | -40 | 105 | °C | 3 | ||
| Input Voltage (VIN) operating | VIN | 3.6 | V | 3 | |||
| Maximum Input RF Power | -20 | dBm | 3 | ||||
| Receive Modulation Duty Cycle | 20 | 80 | % | Note 5 | 3 | ||
| AGC pin leakage current | -2 | 2 | nA | TA = 25ºC | 3 | ||
| AGC pin leakage current | -800 | 800 | nA | TA = +105ºC | 3 | ||
| Reference Oscillator Input Range | 0.2 | 1.5 | Vp-p | 3 | |||
| CTH Leakage Current | -2 | 2 | nA | TA = 25ºC | 4 | ||
| CTH Leakage Current | -800 | 800 | nA | TA = +105ºC | 4 | ||
| Demodulator Filter Bandwidth @434MHz | 1625 | 13000 | Hz | Programmable, see application section | 4 | ||
| RSSI DC Output Voltage Range | 0.4 | 2 | V | 4 | |||
| Operating Supply Current | ISS | 6 | mA | Continuous Operation, fRX = 433.92MHz | 3 | ||
| Shut down Current | ISHUT | 0.5 | µA | 3 | |||
| Image Rejection | 20 | dB | 3 | ||||
| 1st IF Center Frequency | 1.2 | MHz | fRX = 433.92MHz | 3 | |||
| Receiver Sensitivity @ 1kbps | -110 | dBm | fRX = 433.92MHz (matched to 50Ω) BER=10-2 | 3 | |||
| IF Bandwidth | 330 | kHz | fRX = 433.92MHz | 3 | |||
| AGC Attack / Decay Ratio | tATTACK / tDECAY | 0.1 | 3 | ||||
| AGC Dynamic Range | 1.15 | V | RFIN @ -40dBm | 3 | |||
| AGC Dynamic Range | 1.7 | V | RFIN @ -100dBm | 3 | |||
| Reference Oscillator Frequency | 13.5213 | MHz | fRX = 433.92MHz, Crystal Load Cap = 10pF | 3 | |||
| Reference Oscillator Input Impedance | 300 | kΩ | 3 | ||||
| Reference Oscillator Source Current | 3.5 | µA | V(REFOSC) = 0V | 3 | |||
| CTH Source Impedance | 120 | kΩ | FREFOSC = 13.52127MHz | 4 | |||
| DO pin output current (source) | 260 | µA | As output source @ 0.8 Vdd | 4 | |||
| DO pin output current (sink) | 600 | µA | sink @ 0.2 Vdd | 4 | |||
| Output rise and fall times | 2 | µsec | CI = 15pF, pin DO, 10-90% | 4 | |||
| RSSI response slope | 25 | mV/dB | -110dBm to -40dBm | 4 | |||
| RSSI Output Current | 400 | µA | 4 | ||||
| RSSI Output Impedance | 200 | Ω | 4 | ||||
| RSSI Response Time | 0.3 | sec | 50% data duty cycle, input power to Antenna = -20dBm | 4 |
CAD (KiCad official)
- Symbol:
MICRF211AYQS-TR - Footprint:
Package_SO:QSOP-16_3.9x4.9mm_P0.635mm - 3D model: QSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files:
micrf211ayqs-tr-etched.step/micrf211ayqs-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);micrf211ayqs-tr.step/micrf211ayqs-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (18 pp, sha256
b52467feb702de8d, retrieved 2026-10-27, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# MICRF211AYQS-TR
**Microchip Tech** · RF Transceiver ICs · QSOP-16-150mil
MICRF211AYQS-TR from Microchip Tech, in a QSOP-16-150mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RO1 | passive | Reference resonator input connection to the Colpitts oscillator stage, which may also be driven by an external reference signal of 1.5V p-p amplitude maximum. |
| 2 | GNDRF | power_in | Negative supply connection associated with the ANT RF input. |
| 3 | ANT | input | RF signal input from the antenna, internally AC coupled, with a matching network to RF ground recommended to improve ESD protection. |
| 4 | GNDRF | power_in | Negative supply connection associated with the ANT RF input. |
| 5 | VDD | power_in | Positive supply connection for all chip functions, operating from 3.0V to 3.6V. |
| 6 | SQ | input | Squelch control logic input with an active internal pull-up when not shut down. |
| 7 | SEL0 | input | Logic control input with active internal pull-up, used with SEL1 to control the demodulator low pass filter bandwidth. |
| 8 | SHDN | input | Shutdown logic control input with active internal pull-up. |
| 9 | GND | power_in | Negative supply connection for all chip functions except the RF input. |
| 10 | DO | output | Demodulated data output. |
| 11 | SEL1 | input | Logic control input with active internal pull-up, used with SEL0 to control the demodulator low pass filter bandwidth. |
| 12 | CTH | passive | Demodulation threshold voltage integration capacitor connection, with values above 1nF recommended across CTH and GND to set the data slicing settling time. |
| 13 | CAGC | passive | AGC filter capacitor connection, normally greater than 0.47µF, connected from this pin to GND. |
| 14 | RSSI | output | Received signal strength indication output from a buffer with 200Ω typical output impedance. |
| 15 | NC | unconnected | Not connected; connect to ground. |
| 16 | RO2 | passive | Reference resonator input connection to the Colpitts oscillator stage, with 7pF in parallel with a low resistance MOS switch to GND during normal operation, driven by the startup excitation circuit during internal startup. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | QSOP-16-150mil |
| Category | RF & Radio |
| Pins | 16 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (VDD) | VDD | | | 5 | V | | 3 |
| Input Voltage | | | | 5 | V | | 3 |
| Junction Temperature | | | | 150 | ºC | | 3 |
| Lead Temperature (soldering) | | | | 260 | °C | 10 sec | 3 |
| Storage Temperature | TS | -65 | | 150 | ºC | | 3 |
| Maximum Receiver Input Power | | | | 10 | dBm | | 3 |
| ESD Rating CDM | | | | 2 | kV | CDM | 3 |
| ESD Rating HBM | | | | 200 | V | HBM | 3 |
| ESD Rating Machine Model | | | | 100 | V | Machine Model | 3 |
| Supply Voltage (VDD) operating | VDD | 3 | | 3.6 | V | | 3 |
| Ambient Temperature (TA) | TA | -40 | | 105 | °C | | 3 |
| Input Voltage (VIN) operating | VIN | | | 3.6 | V | | 3 |
| Maximum Input RF Power | | | | -20 | dBm | | 3 |
| Receive Modulation Duty Cycle | | 20 | | 80 | % | Note 5 | 3 |
| AGC pin leakage current | | -2 | | 2 | nA | TA = 25ºC | 3 |
| AGC pin leakage current | | -800 | | 800 | nA | TA = +105ºC | 3 |
| Reference Oscillator Input Range | | 0.2 | | 1.5 | Vp-p | | 3 |
| CTH Leakage Current | | -2 | | 2 | nA | TA = 25ºC | 4 |
| CTH Leakage Current | | -800 | | 800 | nA | TA = +105ºC | 4 |
| Demodulator Filter Bandwidth @434MHz | | 1625 | | 13000 | Hz | Programmable, see application section | 4 |
| RSSI DC Output Voltage Range | | 0.4 | | 2 | V | | 4 |
| Operating Supply Current | ISS | | 6 | | mA | Continuous Operation, fRX = 433.92MHz | 3 |
| Shut down Current | ISHUT | | 0.5 | | µA | | 3 |
| Image Rejection | | | 20 | | dB | | 3 |
| 1st IF Center Frequency | | | 1.2 | | MHz | fRX = 433.92MHz | 3 |
| Receiver Sensitivity @ 1kbps | | | -110 | | dBm | fRX = 433.92MHz (matched to 50Ω) BER=10-2 | 3 |
| IF Bandwidth | | | 330 | | kHz | fRX = 433.92MHz | 3 |
| AGC Attack / Decay Ratio | tATTACK / tDECAY | | 0.1 | | | | 3 |
| AGC Dynamic Range | | | 1.15 | | V | RFIN @ -40dBm | 3 |
| AGC Dynamic Range | | | 1.7 | | V | RFIN @ -100dBm | 3 |
| Reference Oscillator Frequency | | | 13.5213 | | MHz | fRX = 433.92MHz, Crystal Load Cap = 10pF | 3 |
| Reference Oscillator Input Impedance | | | 300 | | kΩ | | 3 |
| Reference Oscillator Source Current | | | 3.5 | | µA | V(REFOSC) = 0V | 3 |
| CTH Source Impedance | | | 120 | | kΩ | FREFOSC = 13.52127MHz | 4 |
| DO pin output current (source) | | | 260 | | µA | As output source @ 0.8 Vdd | 4 |
| DO pin output current (sink) | | | 600 | | µA | sink @ 0.2 Vdd | 4 |
| Output rise and fall times | | | 2 | | µsec | CI = 15pF, pin DO, 10-90% | 4 |
| RSSI response slope | | | 25 | | mV/dB | -110dBm to -40dBm | 4 |
| RSSI Output Current | | | 400 | | µA | | 4 |
| RSSI Output Impedance | | | 200 | | Ω | | 4 |
| RSSI Response Time | | | 0.3 | | sec | 50% data duty cycle, input power to Antenna = -20dBm | 4 |
## CAD (KiCad official)
- Symbol: `MICRF211AYQS-TR`
- Footprint: `Package_SO:QSOP-16_3.9x4.9mm_P0.635mm`
- 3D model: QSOP-16-150mil (KiCad packages3D, STEP)
- 3D model files: `micrf211ayqs-tr-etched.step` / `micrf211ayqs-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `micrf211ayqs-tr.step` / `micrf211ayqs-tr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](docs/micrf211ayqs-tr-datasheet.pdf) (18 pp, sha256 `b52467feb702de8d`, retrieved 2026-10-27, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/micrf211ayqs-tr-datasheet.pdf)