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SN54GTL16612AWD Datasheet(PDF) 5 Page - Texas Instruments |
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SN54GTL16612AWD Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 15 page  www.ti.com Absolute Maximum Ratings (1) Recommended Operating Conditions (1) (2) (3) SN54GTL16612A, SN74GTL16612A 18-BIT LVTTL-TO-GTL+ UNIVERSAL BUS TRANSCEIVERS SCES187D – JANUARY 1999 – REVISED JULY 2005 over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT 3.3 V –0.5 4.6 VCC Supply voltage range V 5 V –0.5 7 A-port and control inputs –0.5 7 VI Input voltage range(2) V B port and VREF –0.5 4.6 A port –0.5 7 Voltage range applied to any output VO V in the high or power-off state(2) B port –0.5 4.6 A port 128 IO Current into any output in the low state mA B port 80 IO Current into any A-port output in the high state(3) 64 mA Continuous current through each VCC or GND ±100 mA IIK Input clamp current VI < 0 –50 mA IOK Output clamp current VO < 0 –50 mA DGG package 64 θ JA Package thermal impedance(4) °C/W DL package 56 Tstg Storage temperature range –65 150 °C (1) 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. (2) The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. (3) This current flows only when the output is in the high state and VO > VCC. (4) The package thermal impedance is calculated in accordance with JESD 51. SN54GTL16612A SN74GTL16612A UNIT MIN NOM MAX MIN NOM MAX 3.3 V 3.15 3.3 3.45 3.15 3.3 3.45 VCC Supply voltage V 5 V 4.75 5 5.25 4.75 5 5.25 GTL 1.14 1.2 1.26 1.14 1.2 1.26 Termination VTT V voltage GTL+ 1.35 1.5 1.65 1.35 1.5 1.65 GTL 0.74 0.8 0.87 0.74 0.8 0.87 VREF Supply voltage V GTL+ 0.87 1 1.1 0.87 1 1.1 B port VTT VTT VI Input voltage V Except B port 5.5 5.5 B port VREF + 50 mV VREF + 50 mV High-level VIH V input voltage Except B port 2 2 B port VREF – 50 mV VREF – 50 mV Low-level VIL V input voltage Except B port 0.8 0.8 IIK Input clamp current –18 –18 mA High-level IOH A port –32 –32 mA output current A port 64 64 Low-level IOL mA output current B port 34 34 TA Operating free-air temperature –55 125 –40 85 °C (1) All unused control 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. (2) Normal connection sequence is GND first, VCC = 5 V second, and VCC = 3.3 V, I/O, control inputs, VTT, and VREF (any order) last. (3) 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. 5 |
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