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SN250 Datasheet(PDF) 16 Page - STMicroelectronics

Part # SN250
Description  Single-chip ZigBee/802.15.4 solution
PDF  130 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SN250 Datasheet(HTML) 16 Page - STMicroelectronics

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Electrical characteristics
SN250
16/130
Table 6 contains the digital I/O specifications for the SN250. The digital I/O power (named
VDD_PADS) comes from three dedicated pins (Pins 17, 23, and 28). The voltage applied to
these pins sets the I/O voltage.
Radio transmitter, MAC, and
baseband
At max. TX power
(
+ 3dBm typical)
27.0
mA
At 0 dBm typical
24.3
mA
At min. TX power
(
− 32dBm typical)
19.5
mA
CPU, RAM, and Flash memory
At 25° C,
VDD_PADS = 3.0V
8.5
mA
Total TX current
( = IRadio transmitter, MAC and baseband,
CPU
+ IRAM, and Flash memory )
At 25° C and 1.8V
core; max. power out
35.5
mA
Table 6.
Digital I/O specifications
Parameter
Name
Min.
Typ.
Max.
Unit
Voltage supply
VDD_PAD
S
2.1
3.6
V
Input voltage for logic 0
VIL
0
0.2 x VDD_PADS
V
Input voltage for logic 1
VIH
0.8 x VDD_PADS
VDD_PADS
V
Input current for logic 0
IIL
− 0.5
μA
Input current for logic 1
IIH
0.5
μA
Input pull-up resistor value
RIPU
30
k
Ω
Input pull-down resistor
value
RIPD
30
k
Ω
Output voltage for logic 0
VOL
0
0.18 x VDD_PADS
V
Output voltage for logic 1
VOH
0.82 x VDD_PADS
VDD_PADS
V
Output source current
(standard current pad)
IOHS
4mA
Output sink current
(standard current pad)
IOLS
4mA
Output source current (high
current pad: GPIO[16:13])
IOHH
8mA
Output sink current (high
current pad: GPIO[16:13])
IOLH
8mA
Total output current (for I/O
Pads)
IOH + IOL
40
mA
Input voltage threshold for
OSC32A
0.2
0.8
∗ VDD_PADS
V
Table 5.
DC characteristics (continued)
Parameter
Test Conditions
Min.
Typ.
Max.
Unit



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