The 74HC21 is a dual 4-input AND gate. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
Name/Description | Modified Date |
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Dual 4-input AND gate (REV 7.0) PDF (161.0 kB) 74HC21 [English] | 30 Nov 2015 |
Name/Description | Modified Date |
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Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English] | 16 Mar 2011 |
Name/Description | Modified Date |
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HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English] | 01 Nov 1997 |
Name/Description | Modified Date |
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plastic small outline package; 14 leads; body width 3.9 mm (REV 1.0) PDF (166.0 kB) SOT108-1 [English] | 08 Feb 2016 |
plastic shrink small outline package; 14 leads; body width 5.3 mm (REV 1.0) PDF (295.0 kB) SOT337-1 [English] | 08 Feb 2016 |
plastic thin shrink small outline package; 14 leads; body width 4.4 mm (REV 1.0) PDF (285.0 kB) SOT402-1 [English] | 08 Feb 2016 |
Name/Description | Modified Date |
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TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (217.0 kB) SOT402-1_118 [English] | 08 Apr 2013 |
Standard product orientation 12NC ending 118 (REV 1.0) PDF (86.0 kB) SOT337-1_118 [English] | 04 Apr 2013 |
Name/Description | Modified Date |
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Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English] | 08 Oct 2009 |
Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English] | 08 Oct 2009 |
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
Product | Status |
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74HC21PW | Active |
74HC21DB | Active |
74HC21D | Active |
Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
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74HC21PW | SOT402-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | 74HC21PW,118 (9352 903 99118) | HC21 | 74HC21PW | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 | ||
Bulk Pack | Active | 74HC21PW,112 (9352 903 99112) | HC21 | 74HC21PW | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 | |||||
74HC21D | SOT108-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 CECC | Active | 74HC21D,653 (9337 568 70653) | 74HC21D | 74HC21D | week 5, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 | ||
Bulk Pack, CECC | Active | 74HC21D,652 (9337 568 70652) | 74HC21D | 74HC21D | week 5, 2004 | 84.9 | 6.62 | 1.51E8 | 1 | 1 | |||||
74HC21DB | SOT337-1 | SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | 74HC21DB,118 (9351 897 90118) | HC21 | 74HC21DB | week 12, 2005 | 84.9 | 6.62 | 1.51E8 | 1 | 1 | ||
Bulk Pack | Active | 74HC21DB,112 (9351 897 90112) | HC21 | 74HC21DB | week 12, 2005 | 84.9 | 6.62 | 1.51E8 | 1 | 1 |