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SN74LS374DBR Datasheet(PDF) 6 Page - Texas Instruments |
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SN74LS374DBR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 10 page SN54LS373, SN54LS374, SN54S373, SN54S374, SN74LS373, SN74LS374, SN74S373, SN74S374 OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS SDLS165B – OCTOBER 1975 – REVISED AUGUST 2002 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† (’LS devices) Supply voltage, VCC (see Note 1) 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage, VI 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Off-state output voltage 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2): DB package 70 °C/W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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. Voltage values are with respect to network ground terminal. 2. The package thermal impedance is calculated in accordance with JESD 51-7. recommended operating conditions SN54LS’ SN74LS’ UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5 4.75 5 5.25 V VOH High-level output voltage 5.5 5.5 V IOH High-level output current –1 –2.6 mA IOL Low-level output current 12 24 mA t Pulse duration CLK high 15 15 ns tw Pulse duration CLK low 15 15 ns t Data setup time ’LS373 5 ↓ 5 ↓ ns tsu Data setup time ’LS374 20 ↑ 20 ↑ ns th Data hold time ’LS373 20 ↓ 20 ↓ ns th Data hold time ’LS374‡ 5 ↑ 0 ↑ ns TA Operating free-air temperature –55 125 0 70 °C ‡ The th specification applies only for data frequency below 10 MHz. Designs above 10 MHz should use a minimum of 5 ns (commercial only). |
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