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| CC2540T Datasheet, PDF (15/37 Pages) Texas Instruments – Extended Industrial Temperature Bluetooth Smart Wireless MCU | |||
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www.ti.com
CC2540T
SWRS172A â JULY 2014 â REVISED NOVEMBER 2015
4.20 SPI AC Characteristics
TA = â40°C to 125°C, VDD = 2 V to 3.6 V
PARAMETER
t1
SCK period
Master, RX and TX
Slave, RX and TX
SCK duty cycle
Master
t2
SSN low to SCK
Master
Slave
t3
SCK to SSN high
Master
Slave
t4
MOSI early out
t5
MOSI late out
t6
MISO setup
t7
MISO hold
SCK duty cycle
Master, load = 10 pF
Master, load = 10 pF
Master
Master
Slave
t10
MOSI setup
t11
MOSI hold
t9
MISO late out
Slave
Slave
Slave, load = 10 pF
Master, TX only
Operating frequency
Master, RX and TX
Slave, RX only
Slave, RX and TX
TEST CONDITIONS
MIN TYP MAX UNIT
250
ns
250
50%
63
ns
63
63
ns
63
7 ns
10 ns
90
ns
10
ns
50%
ns
35
ns
10
ns
95 ns
8
4
MHz
8
4
SCK
t2
SSN
MOSI
MISO
X
D0
t6
t7
D0
t4
t5
X
t3
D1
X
Figure 4-2. SPI Master AC Characteristics
T0478-01
SCK
t2
SSN
MISO
MOSI
X
D0
t10
t11
D0
t8
t9
X
t3
D1
X
Figure 4-3. SPI Slave AC Characteristics
T0479-01
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