Texas Instruments

Description

Datasheet Nov 30, 2015 1. General description. The 74HC21 is a dual 4-input AND gate. Inputs include clamp diodes. This enables the use of current limiting resistors Jul 14, 2012 SN54HC21, SN74HC21. DUAL 4 INPUT POSITIVE AND GATES. SCLS087E DECEMBER 1982 REVISED AUGUST 2003. 1. 74HC20N/S15. N. Selection Type only. 935073760112. 12/31/99. 06/30/00 Standard product. 7. No Volume. 74HC21 . N-B. BURN-IN VERSION. 933833330652. DIR. STEP. HSM. Reset. Phase 1. Phase. 2. Dis1. Dis2. ___. Dis2. Dis. 1. ___. IC1=7 4HC86. IC2=IC3=74HC00. IC4= 74HC21 . IC5=IC6=74HC175. IC1. IC1. IC1. 74HC21 . N. Burn - In Version. 933833330652. 31-12-99. 30-06-00. DIL / SO With No Burn-In Option 2, 6. Low Volume, Standard EOL, Limited. Availability. 96.