Description
Advantage
- High sensitivity up to -85 dBm.
- Extremely compact design and excellent performance bring superior cost-effectiveness.
- Low power consumption, no need to add external heat sinks.
- Very easy to be embedded (Refer to circuit design Figure 5-1).
Technical Specifications
| Parameter | Value |
| Input Voltage | DC 5V |
| Standby Mode Current | < 35mA (EN high level) |
| Sleep Mode Current | < 100µA (EN low level) |
| Operating Current | @5V (25dBm Output, 25°C): Min 300mA, Typical 320mA, Max 380mA |
| Operating Temperature | -20°C ~ +70°C |
| Storage Temperature | -20°C ~ +85°C |
| Work Humidity | 5%RH ~ 95%RH (non-condensing) |
| Protocol | EPC global UHF Class 1 Gen 2 / ISO 18000-6C |
| Spectrum Range | 902 ~ 928MHz, 865 ~ 868MHz (Optional) |
| Supported Regions | US, Canada (FCC); Europe (ETSI EN 302 208); China, Korea, Malaysia |
| RF Output Power | 0 ~ 25dBm |
| Output Power Precision | +/- 1dB |
| Output Power Flatness | +/- 0.2dB |
| Receive Sensitivity | < -85 dBm |
| Peak Inventory Speed | > 50 tags/sec |
| Tag RSSI | Supported |
| Communication Interface | UART 3.3V |
| GPIO | 2 inputs 2 outputs (3.3V TTL Level) |
| Serial Baud Rate | 115200 bps (Default and Recommended) / 38400 bps |
| Dimensions | 28 mm x 25 mm x 2.7 mm |
| Heat Dissipation | Air cooling |
Pin Assignments
| PIN | Interface | Description |
| 1 | Antenna | Antenna connection (Impedance 50Ω) |
| 2 | GND | ATSUHF-412 |
| 3 | GND | Grounding |
| 4 | GND | Grounding |
| 5 | GND | Grounding |
| 6 | GND | Grounding |
| 7 | GPIO 2 | Input GPIO |
| 8 | GPIO 1 | Input GPIO |
| 9 | VCC | Power supply DC 5V |
| 10 | GND | Grounding |
| 11 | EN | High level enable |
| 12 | RXD | UART RXD |
| 13 | TXD | UART TXD |
| 14 | Beeper | Connect the buzzer (Driven externally is recommended) |
| 15 | GPIO 3 | Output GPIO |
| 16 | GPIO 4 | Output GPIO |
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