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L9959 数据表(PDF) 21 Page - STMicroelectronics |
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L9959 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 49 page ![]() DocID027540 Rev 2 21/49 L9959 Electrical specifications 48 3.8 SPI / logic electrical characteristics The voltages are referred to ground and currents are assumed positive, when the current flows into the pin. 4.5 V ≤ VS ≤ 18 V, 4.5 V ≤ VCC ≤ 5.5 V; all outputs open; Tj = -40 °C to 150 °C, unless otherwise specified. Table 21. Inputs: SI, SS, SCK, DIR, DIS and PWM; Output: SO Symbol Parameter Test condition Min Typ Max Unit Inputs: SI, SS, SCK DIR, PWM VIL Input voltage low-level VDD = 5 V -0.3 - 0.75 V VIH Input voltage high-level VDD = 5 V 1.75 - VDD+0.3 V VIHYS Input hysteresis VDD = 5 V 0.2 - 1.0 V RPUin Input pull-up resistor VDD = 5 V 50 - 250 kΩ IINx PWM, DIR input current VINx > 3.0V -5 - 5 μA CSIin(1) SI input capacitance - - - 10 pF CSCKin(1) SCK input capacitance - - - 10 pF CSSin(1) SS Input Capacitance - - - 15 pF CDIR,PWMin (1) DIR, PWM input capacitance - - - 20 pF Input: DIS RDISPU Pull-up resistor 0 V < VDIS < 2.1 V 10 - 45 kΩ IDISx DIS input current VDIS > 3 V -5 - 5 μA CDIS in(1) DIS input capacitance - - - 20 pF tDIS DIS pulse width - 0.5 1 1.5 μs Input pin disturbance (SI, SS, SCK DIR, PWM,DIS) ΔVx_HL Change of VIH and VIL during inverse current on VS Not subjected to test in production. -0.1 - 0.1 V ΔISx Change of input current of SPI input pins during inverse current on VS -100 - 100 μA Output: SO VSOL Output voltage low level IOL = 2 mA, 0 - 0.4 V VSOH Output voltage high level IOH = -2 mA VDD-0.5 - VDD V SRSO(1) Slew rate CLOAD = 200 pF 0.3 - 0.6 V/ns ISOLK Tristate leakage current VSS = VDD -10 - 10 μA CSO out(1) SO output capacitance - - - 10 pF Output pin disturbance (SO) ISOLK Change of ISOLK during inverse Current on VS - -100 - 100 μA 1. Not measured in production test. Parameter guaranteed by design. |
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