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SPC58NH84C3 数据表(PDF) 40 Page - STMicroelectronics |
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SPC58NH84C3 数据表(HTML) 40 Page - STMicroelectronics |
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40 / 147 page  Electrical characteristics SPC58EHx, SPC58NHx 40/147 DS12304 Rev 5 4.8.3 I/O pad current specifications The I/O pads are distributed across the I/O supply segment. Each I/O supply segment is associated to a VDD/VSS supply pair as described in the device pinout Microsoft Excel file attached to the IO_Definition document. Table 17 provides I/O consumption figures. In order to ensure device reliability, the average current of the I/O on a single segment should remain below the IRMSSEG maximum value. tTR_U CC T 10–90% threshold transition time output pin ULTRA STRONG configuration CL = 25 pF VDD =5.0 V ± 10% 1— 6 ns CL = 50 pF VDD =5.0 V ± 10% 2— 12 CL = 25 pF VDD =3.3 V ± 10% 1— 6 CL = 50 pF VDD =3.3 V ± 10% 2— 11 tTR20-80_U CC T 20–80% threshold transition time output pin ULTRA STRONG configuration CL = 25 pF VDD =5.0 V ± 10% 0.8 — 4.5 ns CL = 8 pF Td = 0.25 ns Zo = 50 Ω VDD =3.3 V ± 10% —— 1 tTRTTL_U CC T TTL threshold transition time for output pin in ULTRA STRONG configuration (Ethernet standard) CL = 25 pF VDD =3.3 V ± 10% 0.88 — 5 ns ΣtTR20-80_U CC T Sum of transition time 20–80% output pin ULTRA STRONG configuration CL = 25 pF VDD =5.0 V ± 10% —— 9 ns CL = 15 pF VDD =3.3 V ± 10% —— 9 |tSKEW_U| CC T Difference between rise and fall delay CL = 25 pF VDD = 5.0 V ± 10% 0— 1.2 ns IDCMAX_U CC D Maximum DC current VDD = 5.0 V±10% VDD =3.3 V ± 10% —— 9 mA Table 16. ULTRA STRONG/ULTRA FAST I/O output characteristics (continued) Symbol C Parameter Conditions Value Unit Min Typ Max |
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