STM32L443CC Datasheet, PDF (177/207 Pages) STMicroelectronics – Batch acquisition mode

STM32L443CC STM32L443RC STM32L443VC
Electrical characteristics
USB characteristics
The STM32L443xx USB interface is fully compliant with the USB specification version 2.0
and is USB-IF certified (for Full-speed device operation).
Table 88. USB electrical characteristics⁽¹⁾
Symbol
Parameter
Conditions Min
Typ
Max Unit
V_DDUSB USB transceiver operating voltage
3.0⁽²⁾
-
3.6
V
T_{crystal_less} USB crystal less operation temperature
-15
-
85
°C
R_PUI
Embedded USB_DP pull-up value during idle 900
1250 1600
R_PUR
Embedded USB_DP pull-up value during
reception
Ω
1400 2300 3200
Z_DRV(3) Output driver impedance⁽⁴⁾
Driving high
and low
28
36
44
Ω
1. T_A = -40 to 125 °C unless otherwise specified.
2. The STM32L443xx USB functionality is ensured down to 2.7 V but not the full USB electrical characteristics
which are degraded in the 2.7-to-3.0 V voltage range.
3. Guaranteed by design.
4. No external termination series resistors are required on USB_DP (D+) and USB_DM (D-); the matching
impedance is already included in the embedded driver.
CAN (controller area network) interface
Refer to Section 6.3.14: I/O port characteristics for more details on the input/output alternate
function characteristics (CAN_TX and CAN_RX).
SWPMI characteristics
The Single Wire Protocol Master Interface (SWPMI) and the associated SWPMI_IO
transceiver are compliant with the ETSI TS 102 613 technical specification.
Table 89. SWPMI electrical characteristics
Symbol
Parameter
Conditions
Min Typ Max Unit
t_SWPSTART SWPMI regulator startup time
t_SWPBIT
SWP bit duration
SWP Class B
2.7 V ≤ V_DD ≤ 3,3V
V_CORE voltage range 1
V_CORE voltage range 2
-
- 300 μs
500 -
620 -
-
ns
-
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