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STM32WB55CCU6ATR Datasheet(PDF) 168 Page - STMicroelectronics |
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STM32WB55CCU6ATR Datasheet(HTML) 168 Page - STMicroelectronics |
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168 / 193 page  Electrical characteristics STM32WB55xx STM32WB35xx 168/193 DS11929 Rev 10 USB characteristics The STM32WB55xx and STM32WB35xx USB interface is fully compliant with the USB specification version 2.0, and is USB-IF certified (for Full-speed device operation). JTAG/SWD interface characteristics Unless otherwise specified, the parameters given in Table 98 and Table 99 are derived from tests performed under the ambient temperature, fPCLKx frequency and supply voltage conditions summarized in Table 24: General operating conditions, with the following configuration: Capacitive load C = 30 pF Measurement points are done at CMOS levels: 0.5 ₓ VDD Table 97. USB electrical characteristics(1) 1. TA = -40 to 125 °C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit VDDUSB USB transceiver operating voltage - 3.0(2) 2. The STM32WB55xx and STM32WB35xx USB functionality is ensured down to 2.7 V, but the full USB electrical characteristics are degraded in the 2.7 to 3.0 V voltage range. -3.6 V Tcrystal_less USB crystal-less operation temperature --15 - 85 ° C RPUI Embedded USB_DP pull-up value during idle - 900 1250 1600 Ω RPUR Embedded USB_DP pull-up value during reception - 1400 2300 3200 ZDRV(3) 3. Guaranteed by design. Output driver impedance(4) 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. Driving high and low 28 36 44 Table 98. JTAG characteristics Symbol Parameter Conditions Min Typ Max Unit 1/tc(TCK) TCK clock frequency 2.7 < VDD < 3.6 V - - 29 MHz 1.65 < VDD < 3.6 V - - 21 tisu(TMS) TMS input setup time - 2.5 - - ns tih(TMS) TMS input hold time - 2 - - tisu(TDI) TDI input setup time - 1.5 - - tih(TDI) TDI input hold time - 2 - - tov(TDO) TDO output valid time 2.7 < VDD < 3.6 V - 13.5 16.5 1.65 < VDD < 3.6 V - 13.5 23 toh(TDO) TDO output hold time - 11 - - |
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