ETRX357 Telegesis Ltd, ETRX357 Datasheet - Page 9

• Manufacturer Part Number: ETRX357
• Description: MODULE ZIGBEE EM357 W/CHIP ANT
• Manufacturer: Telegesis Ltd

Specifications of ETRX357

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: ISM
• Power - Output: 3dBm
• Sensitivity: -100dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 27mA
• Current - Transmitting: 31mA
• Data Interface: PCB, Surface Mount
• Memory Size: 192kB Flash, 12kB RAM
• Antenna Connector: On-Board, Chip
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 920-1006-2

3 Module Pinout
The table below gives details about the pin assignment for direct SMD soldering of the ETRX3
series modules to the application board. For more information on the alternate functions please
refer to [2]. Also refer to the Telegesis AT Commandset documentation to understand how the pre-
programmed firmware makes use of the individual I/Os.
All GND pads are connected within the module, but for best RF performance all of them should be
grounded externally.
©2009 Telegesis (UK) Ltd
ETRX35x
Pad
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Function
GND
PC5 {1}
PC6
PC7
PA7 {4}
PB3 {2}
nReset
PB4 {2}
PA0
PA1
PA2
PA3
GND
PA4
PA5 {3}
PA6 {4}
PB1
PB2
GND
GND
Figure 1: ETRX3 series Module Pinout (top view)
EM35x Pin
GND
11
13
14
18
19
12
20
21
22
24
25
GND
26
27
29
30
31
GND
GND
- 9 -
Alternate Functions
TX_ACTIVE
OSC32B, nTX_ACTIVE
OSC32A, OSC32_EXT
TIM1C4
SC1nCTS, SC1SCLK, TIM2C3
TIM2C4, SC1nRTS, SC1nSSEL
TIM2C1, SC2MOSI
TIM2C3, SC2SDA, SC2MISO
TIM2C4, SC2SCL, SC2SCLK
SC2nSSEL, TRACECLK, TIM2C2
ADC4, PTI_EN, TRACEDATA
ADC5, PTI_DATA, nBOOTMODE, TRACEDATA3
TIM1C3
SC1MISO, SC1MOSI, SC1SDA, SC1TXD, TIM2C1
SC1MISO, SC1MOSI, SC1SCL, SC1RXD, TIM2C2
ETRX35x Preliminary Product Manual
ETRX351 AND ETRX357