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SN74F299DWRE4 数据表(PDF) 3 Page - Texas Instruments |
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SN74F299DWRE4 数据表(HTML) 3 Page - Texas Instruments |
3 / 13 page The SN54F299 is obsolete and no longer supplied. SN54F299, SN74F299 8BIT UNIVERSAL SHIFT/STORAGE REGISTERS WITH 3STATE OUTPUTS SDFS071B − MARCH 1987 − REVISED APRIL 2004 3 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 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI (see Note 1) −1.2 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input current range −30 mA to 5 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the disabled or power-off state −0.5 V to 5.5 V . . . . . . . . . . . . . . . . . . . . Voltage range applied to any output in the high state −0.5 V to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current into any output in the low state: QA′ or QH′ 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN54F299 (QA thru QH) 40 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SN74F299 (QA thru QH) 48 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2): DW package 58 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N package 69 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NS package 60 °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 voltage ratings may be exceeded provided the input current ratings are observed. 2. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions (see Note 3) SN54F299 SN74F299 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V IIK Input clamp current −18 −18 mA IOH High-level output current QA′ or QH′ −1 −1 mA IOH High-level output current QA thru QH −3 −3 mA IOL Low-level output current QA′ or QH′ 20 20 mA IOL Low-level output current QA thru QH 20 24 mA TA Operating free-air temperature −55 125 0 70 °C NOTE 3: 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. |
类似零件编号 - SN74F299DWRE4 |
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类似说明 - SN74F299DWRE4 |
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