Fairchild Semiconductor 74F521
The 74F521 is an expandable 8-bit comparator. It compares two words of up to eight bits each and provides a LOW output when the two words match bit for bit. The expansion input IA=B also serves as an active LOW enable input.- Min Voltage : 4.5V
- Max Voltage : 5.5V
- Channels : 8
- Max Operating Temp : 70°C
- Min Operating Temp : 0°C
Source:
Octopart
GENERAL DESCRIPTION
The 74F521 is an expandable 8-bit comparator.FEATURES
s Compares two 8-bit words in 6.5 ns typ s Expandable to any word length s 20-pin package Ordering Code: Order Number 74F521SC 74F521SJ 74F521MSA 74F521PC Package Number M20B M20D MSA20 N20A PackageDESCRIPTION
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC © 1999 Fairchild Semiconductor Corporation DS009545 74F521 Unit Loading/Fan Out U.L. Pin Names A0–A7 B0–B7 IA=B OA=B Word A Inputs Word B Inputs Expansion or Enable Input (Active LOW) Identity Output (Active LOW)DESCRIPTION
1.0/1.0 1.0/1.0 1.0/1.0 50/33.3 Input IIH/IIL HIGH/LOW Output IOH...