Information

Electrical characteristics STM32F105xx, STM32F107xx
74/104 DocID15274 Rev 7
CAN (controller area network) interface
Refer to Section 5.3.12: I/O current injection characteristics for more details on the
input/output alternate function characteristics (CANTX and CANRX).
5.3.17 12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 52 are derived from tests
performed under the ambient temperature, f
PCLK2
frequency and V
DDA
supply voltage
conditions summarized in Table 9.
Note: It is recommended to perform a calibration after each power-up.
Table 51. Dynamic characteristics: Ethernet MAC signals for MII
Symbol Rating Min Typ Max Unit
t
su(RXD)
Receive data setup time 10 - - ns
t
ih(RXD)
Receive data hold time 10 - - ns
t
su(DV)
Data valid setup time 10 - - ns
t
ih(DV)
Data valid hold time 10 - - ns
t
su(ER)
Error setup time 10 - - ns
t
ih(ER)
Error hold time 10 - - ns
t
d(TXEN)
Transmit enable valid delay time 14 16 18 ns
t
d(TXD)
Transmit data valid delay time 13 16 20 ns
Table 52. ADC characteristics
Symbol Parameter Conditions Min Typ Max Unit
V
DDA
Power supply - 2.4 - 3.6 V
V
REF+
Positive reference voltage - 2.4 - V
DDA
V
I
VREF
Current on the V
REF
input pin - - 160
(1)
220
(1)
µA
f
ADC
ADC clock frequency - 0.6 - 14 MHz
f
S
(2)
Sampling rate - 0.05 - 1 MHz
f
TRIG
(2)
External trigger frequency
f
ADC
= 14 MHz - - 823 kHz
- - - 17 1/f
ADC
V
AIN
Conversion voltage range
(3)
-
0 (V
SSA
or V
REF-
tied to ground)
- V
REF+
V
R
AIN
(2)
External input impedance
See Equation 1 and
Table 53 for details
- - 50 kΩ
R
ADC
(2)
Sampling switch resistance - - - 1 kΩ
C
ADC
(2)
Internal sample and hold capacitor - - - 8 pF
t
CAL
(2)
Calibration time
f
ADC
= 14 MHz 5.9 µs
- 83 1/f
ADC