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Updated at 17/06/2025 10:30:15(UTC+8)

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Description

The 74HC85N is a 4-bit CMOS Magnitude Comparator pin compatible with low power Schottky TTL (LSTTL). It can be expanded to almost any length. It performs the comparison of two 4-bit binary, BCD or other monotonic codes and present the three possible magnitude results at the outputs. The 4-bit inputs are weighted, where A3 and B3 are the most significant bits. The upper part of the table describes the normal operation under all conditions that will occur in a single device or in a series expansion scheme. In the upper part of the table the three outputs are mutually exclusive. In the lower part of the table, the outputs reflect the feed forward conditions that exist in the parallel expansion scheme. For words greater than 4-bits, units can be cascaded by connecting outputs QA<Β, QA>B and QA=B to the corresponding inputs of the significant comparator.
Serial or parallel expansion without extra gating
Magnitude comparison of any binary words
Output capability - Standard
Complies with JEDEC standard No. 7A

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74HC85N Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
Mounting Style	Through Hole
Number of Pins	16 Pin
Case/Package	DIP
Supply Voltage (DC)	5.00 V, 6.00 V (max)
Number of Channels	4 Channel
Number of Positions	16 Position
Number of Bits	4 Bit
Operating Temperature (Max)	125 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	2V ~ 6V
Supply Voltage (Max)	6 V
Supply Voltage (Min)	2 V
	Show
Size-Length	1 in
Size-Width	0.5 in
Size-Height	0.5 in
Weight	0.004535924 kg
Product Lifecycle Status	Unknown
Packaging	Bulk
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17

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