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Part Name(s) : MC74AC521 MC74AC521DW MC74AC521N MC74ACT521 MC74ACT521DW MC74ACT521N Motorola
Motorola => Freescale
Description : 8-BIT IDENTITY COMPARATOR View

8-BIT IDENTITY COMPARATOR

The MC74AC521/74ACT521 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=Balso serves as an
active LOW enable input.

• Compares Two 8-BIT Words in 6.5 ns Typ
• Expandable to Any Word Length
• 20-Pin Package
• Outputs Source/Sink 24 mA
• ′ACT521 has TTL-Compatible Inputs

Part Name(s) : SN54ALS526 SN54ALS526FK SN54ALS526J SN54ALS527 SN54ALS527FK SN54ALS527J SN54ALS528 SN54ALS528FK SN54ALS528J SN74ALS526 SN74ALS527 SN74ALS528 SN74ALS526DW SN74ALS526N SN74ALS527DW SN74ALS527N SN74ALS528DW SN74ALS528N TI
Texas Instruments
Description : FUSE-PROGRAMMABLE IDENTITY COMPARATORS View

description
The ’ALS526 and ’ALS528 are fuse-programmable IDENTITY COMPARATORs designed for easy programming in fixed-COMPARATOR applications. The ’ALS526 compares a 16-bit data word against a preprogrammed 16-bit data word while the ’ALS528 compares a 12-bit data word against a preprogrammed 12-bit data word.

• Can Be Programmed and Verified on Most Incoming Test Equipment
• Reduces Board and Package Size for Similar Fixed COMPARATOR Functions
• High-Speed Address Recognition
• Package Options Include Plastic Small Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
• Dependable Texas Instruments Quality and Reliability
• Programming Capabilities
    ’ALS526 − Fuse Programmable 16-Bit IDENTITY COMPARATOR
    ’ALS527 − Fuse Programmable 8-BIT IDENTITY COMPARATOR and 4-Bit COMPARATOR
    ’ALS528 − Fuse Programmable 12-Bit IDENTITY COMPARATOR

Part Name(s) : 74F521CW Fairchild
Fairchild Semiconductor
Description : 8-BIT IDENTITY COMPARATOR View

General Description
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.
   
Features
■ Compares two 8-BIT words in 6.5 ns typ
■ Expandable to any word length
■ 20-pin package
   

Part Name(s) : MC54F521J MC54F521 MC74F521DW MC74F521 MC74F521N Motorola
Motorola => Freescale
Description : 8-BIT IDENTITY COMPARATOR View

The MC54/74F521 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.

• Compares Two 8-BIT Words in 6.5 ns Typical
• Expandable to Any Word Length
• 20-Pin Package


Part Name(s) : PI74FCT521 PI74FCT521T PI74FCT521TL PI74FCT521TP PI74FCT521TQ PI74FCT521TR PI74FCT521TS Pericom-Semiconductor
Pericom Semiconductor
Description : Fast CMOS 8-BIT IDENTITY COMPARATOR View

Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are produced in the Company’s advanced 0.8 micron CMOS technology, achieving industry leading speed grades.
The PI74FCT521T is an 8-BIT IDENTITY COMPARATOR. When two words of up to eight bits are compared, a bit-for-bit match of the two words provides a LOW output. The comparison can be extended over multiple words by the expansion input. The expansion input IA=B also serves as an active LOW enable input.

Product Features:
• PI74FCT521T is pin compatible with bipolar FAST™ Series at a higher speed and lower power consumption
• TTL input and output levels
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
   – 20-pin 173 mil wide plastic TSSOP (L)
   – 20-pin 300 mil wide plastic DIP (P)
   – 20-pin 150 mil wide plastic QSOP (Q)
   – 20-pin 150 mil wide plastic TQSOP (R)
   – 20-pin 300 mil wide plastic SOIC (S)

 

Part Name(s) : 74F521 74F521SC 74F521SJ 74F521MSA 74F521SCX 74F521SJX 74F521MSAX 74F521PC Fairchild
Fairchild Semiconductor
Description : 8-BIT IDENTITY COMPARATOR View

General Description
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.

Features
■ Compares two 8-BIT words in 6.5 ns typ
■ Expandable to any word length
■ 20-pin package

Part Name(s) : 54F521 54F521DM 54F521DMQB 74F521 74F521MSA 74F521PC 74F521SC 74F521SJ 74F521MSAX 74F521SCX 74F521SJX National-Semiconductor
National ->Texas Instruments
Description : 8-BIT IDENTITY COMPARATOR View

General Description
The ’F521 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 IAeB also serves as an active LOW enable input.

Features
■ Compares two 8-BIT words in 6.5 ns typ
■ Expandable to any word length
■ 20-pin package

Part Name(s) : 54AC520 54AC520D 54AC520F 54AC520L 54ACT520 54ACT520D 54ACT520F 54ACT520L National-Semiconductor
National ->Texas Instruments
Description : 8-BIT IDENTITY COMPARATOR View

General Description
The ’AC/’ACT520 are expandable 8-BIT COMPARATORs. They compare two words of up to eight bits each and provide a LOW output when the two words match bit for bit. The expansion input IA = B also serves as an active LOW enable in put.

Features
Compares two 8-BIT words in 6.5 ns typ
Expandable to any word length
20-pin package
Outputs source/sink 24 mA
’ACT520 has TTL-compatible inputs
Standard Microcircuit Drawing (SMD)
   54AC520: 5962-90916
   54ACT520: 5962-89793

Part Name(s) : 54AC520 54AC520D 54AC520F 54AC520L 54ACT520 54ACT520D 54ACT520F 54ACT520L NSC
National ->Texas Instruments
Description : 8-BIT IDENTITY COMPARATOR View

General Description
The ’AC/’ACT520 are expandable 8-BIT COMPARATORs. They compare two words of up to eight bits each and provide a LOW output when the two words match bit for bit. The expansion input IA = B also serves as an active LOW enable in put.

Features
Compares two 8-BIT words in 6.5 ns typ
Expandable to any word length
20-pin package
Outputs source/sink 24 mA
’ACT520 has TTL-compatible inputs
Standard Microcircuit Drawing (SMD)
   54AC520: 5962-90916
   54ACT520: 5962-89793

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