EM357-RTR Ember, EM357-RTR Datasheet - Page 20

• Manufacturer Part Number: EM357-RTR
• Description: IC RF TXRX ZIGBEE 192KB 48QFN
• Manufacturer: Ember

Specifications of EM357-RTR

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 26mA
• Current - Transmitting: 31mA
• Data Interface: PCB, Surface Mount
• Memory Size: 192kB Flash, 12kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 636-1011-2

2.5 Digital I/O Specifications
Parameter
Voltage supply (Regulator Input voltage)
Low Schmitt switching threshold
High Schmitt switching threshold
Input current for logic 0
Input current for logic 1
Figure 2-2 shows typical output power against power setting on the Ember reference design.
Table 2-5 lists the digital I/O specifications for the EM35x. The digital I/O power (named VDD_PADS) comes
from three dedicated pins (Pins 23, 28 and 37). The voltage applied to these pins sets the I/O voltage.
Test Conditions
V
Schmitt input threshold going from high to
low
V
Schmitt input threshold going from low to
high
I
I
IL
IH
Table 2-5. Digital I/O specifications
SWIL
SWIH
Figure 2-2. Transmit Output Power
Final
2-6
VDD_PADS
VDD_PADS
0.42 x
0.62 x
Min.
2.1
EM351 / EM357
Typ.
VDD_PADS
VDD_PADS
0.50 x
0.80 x
Max.
+0.5
-0.5
3.6
120-035X-000G
Unit
μA
μA
V
V
V