Electrical characteristics
STM32F302xx/STM32F303xx
2
(1)
Figure 30. I S master timing diagram (Philips protocol)
t
t
r(CK)
f(CK)
t
c(CK)
CPOL = 0
CPOL = 1
WS output
t
w(CKH)
t
t
h(WS)
t
v(WS)
w(CKL)
t
t
v(SD_MT)
h(SD_MT)
(2)
SD
transmit
LSB transmit
MSB transmit
MSB receive
Bitn transmit
LSB transmit
t
t
h(SD_MR)
su(SD_MR)
(2)
SD
LSB receive
Bitn receive
LSB receive
receive
ai14884b
1. Measurement points are done at 0.5VDD and with external CL=30 pF
2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
USB characteristics
Table 63. USB startup time
Symbol
Parameter
Max
Unit
(1)
tSTARTUP
USB transceiver startup time
1
µs
1. Guaranteed by design, not tested in production.
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Doc ID 023353 Rev 5
STMICROELECTRONICS [ ST ]
