EM351-RTR Ember, EM351-RTR Datasheet - Page 44

• Manufacturer Part Number: EM351-RTR
• Description: IC RF TXRX ZIGBEE 128KB 48QFN
• Manufacturer: Ember

Specifications of EM351-RTR

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Power - Output: 3dBm
• Sensitivity: -100dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 26mA
• Current - Transmitting: 31mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB 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
• Applications: -
• Other names: 636-1010-2

6.3
Clocks
Table 6-5 shows which reset sources generate certain resets.
The EM35x integrates four oscillators:
Figure 6-2 shows a block diagram of the clocks in the EM35x. This simplified view shows all the clock sources
and the general areas of the chip to which they are routed.
POR HV
POR LV (due to waking from
normal deep sleep)
POR LV (not due to waking from
normal deep sleep)
nRESET
Watchdog
SYSRESETREQ
Option byte error
Normal deep sleep
Emulated deep sleep
Debug reset
12 MHz RC oscillator
24 MHz crystal oscillator
10 kHz RC oscillator
32.768 kHz crystal oscillator
Reset Source
PORESET
Table 6-5. Generated Resets
X
X
X
X
X
X
Final
6-6
SYSRESET
Reset Generation Module Output
X
X
X
X
X
X
X
X
X
X
DAPRESET
X
X
X
X
EM351 / EM357
PRESET
X
X
X
X
X
HV
120-035X-000G
PRESET
X
X
X
X
X
X
X
X
X
LV