HD74LS21

HD74LS21 Dual 4-input Positive AND Gates Features Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74LS21P DILP-14 pin PRDP0014AB-B (DP-14AV) P HD74LS21FPEL SOP-14 pin (JEITA) PRSP0014DF-B (FP-14DAV) FP Note: Please consult the sales office for the above package availability. Pin Arrangement REJ03D0401–0200 Rev.2.00 Feb.18.2005 Taping Abbreviation (Quantity) — EL (2,000 pcs/reel) 1A 1 1B 2 NC 3 1C 4 1D 5 1Y 6 GND 7 14 VCC 13 2D 12 2C 11 NC 10 2B 9 2A 8 2Y (Top view) Circuit Schematic (1/2) Inputs A B C D VCC 20k 10k 8k 75 4.5k 1.5k 3k Output Y GND Rev.2.00, Feb.18.2005, page 1 of 4 HD74LS21 Absolute Maximum Ratings Item Symbol Ratings Supply voltage VCC 7 Input voltage VIN 7 Power dissipation PT 400 Storage temperature Tstg –65 to +150 Note: Voltage value, unless otherwise noted, are with respect to network ground terminal. Recommended Operating Conditions Item Supply voltage Output cur...