RF-BM-S02A is a Bluetooth Low Energy (BLE) module based on TI CC2541F256, an 8051 core BLE System-on-Chip (SoC). This PCB module integrates a 32 MHz crystal, a 32.768 kHz crystal, an LC balun, an RF matching filter, and a meander line PCB antenna.
RF-BM-S02A is a Bluetooth Low Energy (BLE) module based on TI CC2541F256, an 8051 core BLE System-on-Chip (SoC). This PCB module integrates a 32 MHz crystal, a 32.768 kHz crystal, an LC balun, an RF matching filter, and a meander line PCB antenna. It is pre-programmed with the BLE 4.0 stack and an application communication protocol over its full-speed USB interface. The module is highly suited for systems where ultralow power consumption is required. This is specified by various operating modes. Short transition times between operating modes further enable low power consumption. RF-BM-S02A is pin-compatible with the RF-BM-S02 and RF-BM-S02I in the SMT package, if the USB is not used on the RF-BM-S02 & RF-BM-S02I and the I2C/extra I/O is not used on the RF-BM-S02A. Compared to the RF-BM-S02I and RF-BM-S02, the RF-BM-S02A provides lower RF current consumption. The RF-BM-S02A does not have the USB interface of the RF-BM-S02 and RF-BM-S02I, and provides lower maximum output power in TX mode. The RF-BM-S02A also adds a HW I2C interface.
Parameters of RF-BM-S02A
Chipset | CC2541F256 |
Supply Power Voltage | 2.0 V ~ 3.6 V, recommended to 3.3 V |
Frequency | 2402 MHz ~ 2480 MHz |
Transmit Power | Programmable: -23.0 dBm ~ 0 dBm |
Receiving Sensitivity (low gain mode) | -87 dBm |
Receiving Sensitivity (high gain mode) | -93 dBm |
GPIO | 13 |
Crystal | 32 MHz, 32.768 kHz |
RAM | 8 KB |
Flash | 256 KB |
Package | SMT Packaging |
Frequency Error | ±20 kHz |
Dimension | 15.2 mm x 11.2 mm x (1.7 ± 0.1) mm |
Type of Antenna | PCB Antenna |
Operating Temperature | -40 ℃ ～ +85 ℃ |
Storage Temperature | -40 ℃ ～ +125 ℃ |
RX Current | 17.5 mA |
TX Current (-6 dBm) | 18.2 mA |
Power mode 1 (3-μs wake-up) | 270 μA |
Power mode 2 (sleep timer on) | 1.0 μA |
Power mode 3 (external interrupts) | 0.5 μA |
Recommended Footprint
Pin Attributes
Pin Functions of RF-BM-S02A
Pin | Name | Chip Pin | Pin Type | Description |
1 | GND | - | GND | Ground |
2 | VCC | - | Power | Power supply 2.0 V ~ 3.6 V |
3 | P22 | P2.2 | I/O | |
4 | P21 | P2.1 | I/O | |
5 | RESET | RST | RESET | |
6 | P20 | P2.0 | I/O | |
7 | P17 | P1.7 | I/O | |
8 | I2C_SCL | I2C_SCL | I/O | I2C_SCL |
9 | I2C_SDA | I2C_SDA | I/O | I2C_SDA |
10 | P12 | P1.2 | I/O | |
11 | P11 | P1.1 | I/O | |
12 | P07 | P0.7 | I/O | |
13 | P06 | P0.6 | I/O | |
14 | P05 | P0.5 | I/O | |
15 | P04 | P0.4 | I/O | |
16 | P03 | P0.3 | I/O | |
17 | P02 | P0.2 | I/O | |
18 | P01 | P0.1 | I/O |
