EM357-RTR Ember, EM357-RTR Datasheet - Page 222

• 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

EM351 / EM357
An external 1.8 V regulator may replace both internal regulators. The EM35x can control external regulators
during deep sleep using open-drain GPIO PA7, as described in Chapter 7, GPIO. The EM35x drives PA7 low
during deep sleep to disable the external regulator and an external pull-up is required to release this signal to
indicate that supply voltage should be provided. Current consumption increases approximately 2 mA when
using an external regulator. When using an external regulator the internal regulators should be disabled
through Ember software.
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120-035X-000G
Final