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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCP48FVB08 датащи(PDF) 18 Page - Microchip Technology |
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MCP48FVB08 датащи(HTML) 18 Page - Microchip Technology |
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18 / 112 page  MCP48FXBX4/8 DS20006362A-page 18 2020 Microchip Technology Inc. 1.1.3 RESET AND POWER-DOWN TIMING FIGURE 1-3: Power-on and Brown-out Reset Waveforms. FIGURE 1-4: SPI Power-Down Command Waveforms. VDD tPORD tBORD VOUT VBOR VOUT at High-Z SPI Interface is Operational VPOR 24th Bit SCK VOUT tPDE tPDD (WRITE command) 1st Bit (next command) 24th Bit (WRITE command) TABLE 1-3: RESET AND POWER-DOWN TIMING Timing Characteristics Standard Operating Conditions (unless otherwise specified): Operating Temperature: -40°C TA +125°C (Extended. Unless otherwise noted, all parameters apply across these specified operating ranges: VDD = +2.7V to 5.5V, VSS = 0V, RL = 5 k from VOUT to VSS, CL = 100 pF. Typical specifications represent values for VDD = 5.5V, TA = +25°C. Parameters Sym. Min. Typ. Max. Units Conditions Power-on Reset Delay tPORD —60 — µs VDD rising, VDD > VPOR Brown-out Reset Delay tBORD —45 — µs VDD transitions from VDD(MIN) > VPOR, VOUT driven to VOUT disabled Power-Down DAC Output Disable Time Delay TPDE —10.5 — µs PDnB:PDnA = 00 11, 10 or 01 started from the falling edge of the SCK at the end of the 24th clock cycle, VOUT = VOUT – 10 mV, VOUT not connected Power-Down DAC Output Enable Time Delay TPDD —1 — µs PDnB:PDnA = 11, 10 or 01 00 started from the falling edge of the SCK at the end of the 24th clock cycle, Volatile DAC Register = FFh, VOUT =10 mV, VOUT not connected |
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