CC2540F128 Datasheet, PDF (12/34 Pages) Texas Instruments – 2.4-GHz Bluetooth® low energy System-on-Chip

CC2540F128, CC2540F256
SWRS084C – OCTOBER 2010 – REVISED NOVEMBER 2011
SPI AC CHARACTERISTICS
T_A = –40°C to 85°C, VDD = 2 V to 3.6 V
PARAMETER
TEST CONDITIONS
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
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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
SSN
MOSI
MISO
X
t₂
t₃
D0
t₆
t₇
D0
t₄
t₅
X
D1
X
Figure 2. SPI Master AC Characteristics
T0478-01
12
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