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SN54LVT646W Datasheet(PDF) 6 Page - Texas Instruments |
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SN54LVT646W Datasheet(HTML) 6 Page - Texas Instruments |
6 / 10 page SN54LVT646, SN74LVT646 3.3-V ABT OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS SCBS140D – MAY 1992 – REVISED JULY 1995 6 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) – 0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high state or power-off state, VO (see Note 1) – 0.5 V to 7 V . . . . Current into any output in the low state, IO: SN54LVT646 96 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74LVT646 128 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the high state, IO (see Note 2): SN54LVT646 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . SN74LVT646 64 mA . . . . . . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI < 0) – 50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output clamp current, IOK (VO < 0) – 50 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum power dissipation at TA = 55°C (in still air) (see Note 3): DB package 0.65 W . . . . . . . . . . . . . . . . . . . DW package 1.7 W . . . . . . . . . . . . . . . . . . . PW package 0.7 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 maximum package power dissipation is calculated using a junction temperature of 150 °C and a board trace length of 750 mils. For more information, refer to the Package Thermal Considerations application note in the 1994 ABT Advanced BiCMOS Technology Data Book, literature number SCBD002B. recommended operating conditions (see Note 4) SN54LVT646 SN74LVT646 UNIT MIN MAX MIN MAX UNIT VCC Supply voltage 2.7 3.6 2.7 3.6 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V VI Input voltage 5.5 5.5 V IOH High-level output current –24 –32 mA IOL Low-level output current 48 64 mA ∆t/∆v Input transition rise or fall rate Outputs enabled 10 10 ns / V TA Operating free-air temperature –55 125 –40 85 °C NOTE 4: Unused control inputs must be held high or low to prevent them from floating. |
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