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SN74GTL16622A Datasheet(PDF) 5 Page - Texas Instruments |
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SN74GTL16622A Datasheet(HTML) 5 Page - Texas Instruments |
5 / 10 page SN54GTL16622A, SN74GTL16622A 18-BIT LVTTL-TO-GTL/GTL+ BUS TRANSCEIVERS SCBS673D – AUGUST 1996 – REVISED DECEMBER 1999 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC –0.5 V to 4.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI (see Note 1): A-port and control inputs –0.5 V to 6.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . B port and VREF –0.5 V to 4.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high or power-off state, VO (see Note 1): A port –0.5 V to 6.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B port –0.5 V to 4.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state, IO: A port 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B port 100 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any A-port output in the high state, IO (see Note 2) 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous current through each VCC or GND ±100 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI < 0) –50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output clamp current, IOK (VO < 0) –50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 3) 55 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg –65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. This current flows only when the output is in the high state and VO > VCC. 3. The package thermal impedance is calculated in accordance with JESD 51. recommended operating conditions (see Notes 4 through 6) SN54GTL16622A SN74GTL16622A UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 3.15 3.3 3.45 3.15 3.3 3.45 V VTT Termination GTL 1.14 1.2 1.26 1.14 1.2 1.26 V VTT voltage GTL+ 1.35 1.5 1.65 1.35 1.5 1.65 V VREF Supply voltage GTL 0.74 0.8 0.87 0.74 0.8 0.87 V VREF Supply voltage GTL+ 0.87 1 1.1 0.87 1 1.1 V VI Input voltage B port VTT VTT V VI Input voltage Except B port 5.5 5.5 V VIH High-level B port VREF+50 mV VREF+50 mV V VIH g input voltage Except B port 2 2 V VIL Low-level B port VREF–50 mV VREF –50 mV V VIL input voltage Except B port 0.8 0.8 V IIK Input clamp current –18 –18 mA IOH High-level output current A port –24 –24 mA IOL Low-level A port 24 24 mA IOL output current B port 50 50 mA TA Operating free-air temperature –55 125 –40 85 °C NOTES: 4. All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004. 5. Normal connection sequence is GND first and VCC = 3.3 V, I/O, control inputs, VTT and VREF (any order) last. 6. VTT and RTT can be adjusted to accommodate backplane impedances as long as they do not exceed the DC absolute IOL ratings. Similarly, VREF can be adjusted to optimize noise margins, but normally is 2/3 VTT. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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