Datasheet
DocID029041 Rev 6 179/255
STM32F765xx STM32F767xx STM32F768Ax STM32F769xx Electrical characteristics
220
I
2
S interface characteristics
Unless otherwise specified, the parameters given in Table 87 for the I
2
S interface are
derived from tests performed under the ambient temperature, f
PCLKx
frequency and V
DD
supply voltage conditions summarized in
Table 18, with the following configuration:
• Output speed is set to OSPEEDRy[1:0] = 10
• Capacitive load C = 30 pF
• Measurement points are done at CMOS levels: 0.5V
DD
Refer to Section 5.3.20: I/O port characteristics for more details on the input/output alternate
function characteristics (CK, SD, WS).
Note: Refer to RM0410 reference manual I2S section for more details about the sampling
frequency (F
S
). f
MCK
, f
CK
, and D
CK
values reflect only the digital peripheral behavior. The
values of these parameters might be slightly impacted by the source clock precision. D
CK
depends mainly on the value of ODD bit. The digital contribution leads to a minimum value
of (I2SDIV/(2*I2SDIV+ODD) and a maximum value of (I2SDIV+ODD)/(2*I2SDIV+ODD). F
S
maximum value is supported for each mode/condition.
Table 87. I
2
S dynamic characteristics
(1)
Symbol Parameter Conditions Min Max Unit
f
MCK
I2S Main clock output - 256x8K 256xFs
(2)
MHz
f
CK
I2S clock frequency
Master data - 64xFs
MHz
Slave data - 64xFs
D
CK
I2S clock frequency duty cycle Slave receiver 30 70 %
t
v(WS)
WS valid time Master mode - 3
ns
t
h(WS)
WS hold time Master mode 0 -
t
su(WS)
WS setup time Slave mode 5 -
t
h(WS)
WS hold time Slave mode 2 -
t
su(SD_MR)
Data input setup time
Master receiver 2.5 -
t
su(SD_SR)
Slave receiver 2.5 -
t
h(SD_MR)
Data input hold time
Master receiver 3.5 -
t
h(SD_SR)
Slave receiver 2 -
t
v(SD_ST)
Data output valid time
Slave transmitter (after enable edge) - 12
t
v(SD_MT)
Master transmitter (after enable edge) - 3
t
h(SD_ST)
Data output hold time
Slave transmitter (after enable edge) 5 -
t
h(SD_MT)
Master transmitter (after enable edge) 0 -
1. Guaranteed by characterization results.
2. The maximum value of 256xFs is 49.152 MHz (APB1 maximum frequency).
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from