EM357-RTR Ember, EM357-RTR Datasheet - Page 7

• 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

Pin # Signal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
VDD_24MHZ
VDD_VCO
RF_P
RF_N
VDD_RF
RF_TX_ALT_P
RF_TX_ALT_N
VDD_IF
NC
VDD_PADSA
PC5
TX_ACTIVE
nRESET
PC6
OSC32B
nTX_ACTIVE
PC7
OSC32A
OSC32_EXT
VREG_OUT
VDD_PADS
VDD_CORE
PA7
TIM1C4
TIM1C4
REG_EN
PB3
Direction
Power
Power
I/O
I/O
Power
O
O
Power
Power
I/O
O
I
I/O
I/O
I/O
I/O
I
Power
Power
Power
I/O
High
current
O
I
O
I/O
O
Table 1-1. EM35x Pin Descriptions
Description
1.8 V high-frequency oscillator supply
1.8 V VCO supply
Differential (with RF_N) receiver input/transmitter output
Differential (with RF_P) receiver input/transmitter output
1.8 V RF supply (LNA and PA)
Differential (with RF_TX_ALT_N) transmitter output (optional)
Differential (with RF_TX_ALT_P) transmitter output (optional)
1.8 V IF supply (mixers and filters)
Do not connect
Analog pad supply (1.8 V)
Digital I/O
Logic-level control for external Rx/Tx switch. The EM35x baseband
controls TX_ACTIVE and drives it high (VDD_PADS) when in Tx mode.
Select alternate output function with GPIO_PCCFGH[7:4]
Active low chip reset (internal pull-up)
Digital I/O
32.768 kHz crystal oscillator
Select analog function with GPIO_PCCFGH[11:8]
Inverted TX_ACTIVE signal (see PC5)
Select alternate output function with GPIO_PCCFGH[11:8]
Digital I/O
32.768 kHz crystal oscillator
Select analog function with GPIO_PCCFGH[15:12]
Digital 32.768 kHz clock input source
Regulator output (1.8 V while awake, 0 V during deep sleep)
Pads supply (2.1-3.6 V)
1.25 V digital core supply decoupling
Digital I/O
Disable REG_EN with GPIO_DBGCFG[4]
Timer 1 Channel 4 output
Enable timer output with TIM1_CCER
Select alternate output function with GPIO_PACFGH[15:12]
Disable REG_EN with GPIO_DBGCFG[4]
Timer 1 Channel 4 input
Cannot be remapped
External regulator open drain output
Enabled after reset
Digital I/O
Final
1-2
EM351 / EM357
120-035X-000G