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74ALVCH16903DGGRG4 Arkusz danych(PDF) 2 Page - Texas Instruments |
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74ALVCH16903DGGRG4 Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 16 page www.ti.com DESCRIPTION (CONTINUED) SN74ALVCH16903 3.3-V 12-BIT UNIVERSAL BUS DRIVER WITH PARITY CHECKER AND DUAL 3-STATE OUTPUTS SCES095D – MARCH 1997 – REVISED SEPTEMBER 2004 To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. The SN74ALVCH16903 is characterized for operation from 0 °C to 70°C. FUNCTION TABLES <br/> FUNCTION INPUTS OUTPUTS OE MODE CLKEN CLK A 1Yn(1)–8Yn(1) 9Yn(1)–12Yn(1) L L L ↑ H H H L L L ↑ L L L L L H ↑ H Y0 H L L H ↑ L Y0 L L H X X H H H L H X X L L L H X X X X Z Z (1) n = 1 or 2 PARITY FUNCTION INPUTS OUTPUT Σ OF INPUTS YERR OE PAROE (1) 11A/YERREN(2) PARI/O APAR 1A–10A = H L H L L 0, 2, 4, 6, 8, 10 L H L H L L 1, 3, 5, 7, 9 L L L H L L 0, 2, 4, 6, 8, 10 H L L H L L 1, 3, 5, 7, 9 H H L H L H 0, 2, 4, 6, 8, 10 L L L H L H 1, 3, 5, 7, 9 L H L H L H 0, 2, 4, 6, 8, 10 H H L H L H 1, 3, 5, 7, 9 H L H X X X X X H L X H X X X H (1) When used as a single device, PAROE must be tied high. (2) Valid after appropriate number of clock pulses have set internal register PARI/O FUNCTION(1) INPUTS OUTPUT Σ OF INPUTS PARI/O PAROE APAR 1A–10A = H L 0, 2, 4, 6, 8, 10 L L L 1, 3, 5, 7, 9 L H L 0, 2, 4, 6, 8, 10 H H L 1, 3, 5, 7, 9 H L H X X Z (1) This table applies to the first device of a cascaded pair of SN74ALVCH16903 devices. 2 |
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Podobny opis - 74ALVCH16903DGGRG4 |
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