Technical Specifications
RF Parameters
| RF Parameter | Value | Remark |
| Working Frequency | 431–446MHz | Default 433MHz (24MHz oscillator) |
| Transmit Power | 4–14dBm | Default 14dBm (~25mW) |
| Receive Sensitivity | -108dBm | @ 2.5kbps air speed |
| Air Data Rate | 2.5k–168kbps | Default 2.5kbps |
| Test Distance | 1500m | Open field, 5dBi antenna, 2.5m height, 2.5kbps |
Hardware Parameters
| Hardware Parameter | Value | Remark |
| IC | CC1310F64RSM | TI dual-core SoC |
| Flash | 64KB | — |
| RAM | 16KB | — |
| Core | Cortex-M3 (MCU) + Cortex-M0 (RF) | — |
| Size | 14 × 20mm | Without SMA connector |
| Antenna Interface | IPEX / Stamp Hole | 50Ω impedance |
| Communication Interface | UART | Baud rate 1200–115200, default 9600 |
| Package | SMD | — |
| Buffer | 2048 Bytes | User-configurable |
Electrical Parameters
| Parameter | Min. | Typ. | Max. | Unit | Condition |
| Power Supply | 2.2 | 3.3 | 3.8 | V | — |
| IO Level | — | 3.3 | — | V | Do NOT connect 5V TTL directly |
| TX Current | — | 36 | — | mA | 14dBm (25mW) |
| RX Current | — | 8 | — | mA | — |
| Sleep Current | — | 1.2 | — | μA | Software shutdown |
| Operating Temp | -40 | 20 | +85 | ℃ | Industrial grade |
| Operating Humidity | 10 | 60 | 90 | %RH | Non-condensing |
| Storage Temp | -40 | 20 | +125 | ℃ | — |
Product Details
Hardware FEC — Forward Error Correction for Reliable Data Transmission
The E70-433T14S2 implements hardware-level FEC (Forward Error Correction) using the CC1310’s built-in encoding engine. FEC adds redundancy bits to transmitted data, enabling the receiver to detect and correct bit errors without retransmission. This significantly improves link reliability in noisy RF environments such as industrial facilities, urban deployments, and areas with co-channel interference — a key advantage over modules without FEC.
Modbus & High-Speed Continuous Transmission Support
Natively supports Modbus RTU transparent transmission over UART, enabling direct integration with PLCs, sensors, and industrial controllers without protocol conversion. Air data rate is user-programmable from 2.5kbps to 168kbps — select low speed for maximum range (1.5km @ 2.5kbps) or high speed for throughput-intensive applications. 2048-byte buffer prevents data loss during burst transmissions.
8 Working Modes incl. Air Wake-Up (WoR) & RSSI Reporting
Configurable via M0/M1 pins and AT commands across 8 modes: transparent transmission, fixed-point addressing, broadcast, relay, and air wake-up (WoR). WoR mode enables ultra-low-power operation (sleep current 1.2μA) with automatic wake-up on valid RF packet detection. RSSI byte appended to received packets enables link quality monitoring at the application layer.
All IO Exposed — Full Developer Control
All CC1310 IO pins are routed to module pads, giving developers direct access to GPIO, ADC, timers, and peripheral interfaces beyond the standard UART. This enables custom firmware development using TI’s SimpleLink SDK for applications requiring sensor fusion, local processing, or proprietary protocol implementation alongside wireless communication.
Ideal Applications
FAQ
Q: What is the difference between E70-433T14S2 and E70-433MT14S?
A: The E70-433T14S2 (14×20mm) is larger, uses CC1310F64RSM with 64KB Flash and 16KB RAM, and offers IPEX or stamp-hole antenna options with all IO exposed. The E70-433MT14S (10×10mm) uses CC1310 with 128KB Flash and 8KB RAM in a more compact stamp-hole-only footprint. Choose T14S2 for prototyping and full IO access; MT14S for ultra-compact PCB integration.
Q: Does the E70-433T14S2 support 5V power supply?
A: The module supports 2.2–3.8V power supply. The IO communication level is 3.3V TTL. While some listings mention 5V compatibility for power input via an onboard regulator, the UART IO pins must NOT be connected to 5V TTL directly — use a level shifter when interfacing with 5V microcontrollers.
Q: Is the E70-433T14S2 compatible with LoRaWAN?
A: No. The E70-433T14S2 uses TI CC1310 with GFSK modulation — it is not a LoRa (Semtech SX12xx) module and does not support LoRaWAN. It operates as a transparent UART serial link or with Ebyte’s proprietary addressing/networking protocol. For LoRaWAN, consider Ebyte E22 or E77 series.
Q: How does FEC improve performance compared to non-FEC modules?
A: FEC adds error-correction redundancy to each transmitted packet. In environments with moderate interference or marginal signal strength, FEC can recover corrupted packets without retransmission, reducing latency and improving effective throughput. The trade-off is a slight reduction in raw data throughput due to the added redundancy bits.
Q: What antenna options are available for the E70-433T14S2?
A: The module supports IPEX (U.FL) connector for external antennas and stamp-hole pads for PCB trace antennas. Available bundle options include: module only (E70-433T14S2), module + FPC flexible antenna (TX433-FPC-3208), and module + IPEX rubber duck antenna (TX433-JKS-IPX20).
