SN54LV21A

SN54LV21A, SN74LV21A DUAL 4ĆINPUT POSITIVEĆAND GATES D 2-V to 5.5-V VCC Operation D Max tpd of 6 ns at 5 V D Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C D Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 3.3 V, TA = 25°C D Ioff Supports Partial-Power-Down Mode Operation D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) SCES340E − SEPTEMBER 2000 − REVISED APRIL 2005 SN54LV21A . . . J OR W PACKAGE SN74LV21A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW) 1A 1B NC 1C 1D 1Y GND 1 2 3 4 5 6 7 14 VCC 13 2D 12 2C 11 NC 10 2B 9 2A 8 2Y SN54LV21A . . . FK PACKAGE (TOP VIEW) 1Y 1B GND 1A NC NC 2Y VCC 2A 2D description/ordering information These dual 4-input positive-AND gates are designed for 2-V to 5.5-V VCC operation. The ’LV21A devices perform the Boolean function Y + A B C D or Y + A ) B ) C ) D in positive logic. These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. NC 3 2 1 20 19 4 18 2C NC 5 17 NC 1C 6 16 NC NC 7 15 NC 1D 8 14 2B 9 10 11 12 13 NC − No internal connection ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING SOIC − D Tube of 50 Reel of 2500 SN74LV21AD SN74LV21ADR LV21A SOP − NS Reel of ...