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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP3903 датащи(PDF) 6 Page - Microchip Technology |
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MCP3903 датащи(HTML) 6 Page - Microchip Technology |
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6 / 54 page  MCP3903 DS25048B-page 6 © 2011 Microchip Technology Inc. 1.2 SERIAL INTERFACE CHARACTERISTICS SERIAL INTERFACE SPECIFICATIONS Electrical Specifications: Unless otherwise indicated, all parameters apply at AVDD = 4.5 to 5.5V, DVDD = 2.7 to 3.6V, -40°C < TA <+125°C, CLOAD = 30 pF. Parameters Sym Min Typ Max Units Conditions Serial Clock frequency fSCK —— 10 MHz 2.7 ≤ DVDD < 3.6 CS setup time tCSS 50 — — ns 2.7 ≤ DVDD < 3.6 CS hold time tCSH 100 — — ns 2.7 ≤ DVDD < 3.6 CS disable time tCSD 50 — — ns — Data setup time tSU 10 — — ns 2.7 ≤ DVDD < 3.6 Data hold time t HD 20 — — ns 2.7 ≤ DVDD < 3.6 Serial Clock high time t HI 40 — — ns 2.7 ≤ DVDD < 3.6 Serial Clock low time t LO 40 — — ns 2.7 ≤ DVDD < 3.6 Serial Clock delay time t CLD 50 — — ns — Serial Clock enable time t CLE 50 — — ns — Output valid from SCK low t DO — — 50 ns 2.7 ≤ DVDD < 3.6 Output hold time t HO 0— — ns Output disable time t DIS — — 50 ns 2.7 ≤ DVDD < 3.6 Reset Pulse Width (RESET)tMCLR 100 — — ns 2.7 ≤ DVDD < 3.6 Data Transfer Time to DR (Data Ready) tDODR —50 ns 2.7 ≤ DVDD < 3.6 Data Ready Pulse Low Time tDRP 1/ DMCLK —µs 2.7 ≤ DVDD < 3.6 Schmitt Trigger High-level Input voltage (All digital inputs) VIH1 .7 DVDD —DVDD +1 V Schmitt Trigger Low-level input voltage (All digital inputs) VIL1 -0.3 — 0.25 DVDD V Hysteresis of Schmitt Trigger Inputs (All digital inputs) VHYS 50 — mV Low-level output voltage, SDO pin VOL — — 0.4 V SDO pin only, IOL = 2 mA, DVDD = 3.3V Low-level output voltage, DRn pins VOL 0.4 V DRn pins only, IOL = +1.5 mA, DVDD =3.3V High-level output voltage, SDO pin VOH DVDD - 0.5 — — V SDO pin only, IOH = -2 mA, DVDD = 3.3V High-level output voltage, DRn pins only VOH DVDD - 0.5 —— V DRn pins only, IOH = -1.5 mA, DVDD=3.3V Input leakage current ILI — — ±1 µA CS = DVDD, Inputs tied to DVDD OR DGND Output leakage current ILO — — ±1 µA CS = DVDD, Inputs tied to DVDD OR DGND Internal capacitance (all inputs and outputs) CINT —— 7 pF TA = 25°C, SCK = 1.0 MHz DVDD = 3.3V (Note 1) Note 1: This parameter is periodically sampled and not 100% tested. |
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