IC 7485 - 4-Bit Magnitude Comparator

74HC85 4-bit Magnitude Comparator 

The ’HC85 and ’HCT85 are high speed magnitude comparators that use silicon-gate CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of standard CMOS integrated circuits. These 4-bit devices compare two binary, BCD, or other monotonic codes and present the three possible magnitude results at the outputs (A > B, A < B, and A = B). The 4-bit input words are weighted (A0 to A3 and B0 to B3), where A3 and B3 are the most significant bits. This product is known as 4 bit Magnitude Comparator IC, 7485, 74HC85, 74HC85 4 bit Magnitude Comparator IC, 74XXX series IC, CD74HC85E, CD74HC85NSR, 74HC85D, CD74HC85EE4, CD74HC85PW, CD74HC85M.

Features:

• Buffered inputs and outputs
• Typical propagation delay: 13 ns (data to output at VCC = 5 V, CL = 15 pF, TA = 25℃)
• Serial or parallel expansion without external gating
• Fanout (over temperature range)
  – Standard outputs: 10 LSTTL loads
  – Bus driver outputs: 15 LSTTL loads
• Wide operating temperature range: –55℃ to 125℃
• Balanced propagation delay and transition times

Features/Specs:

• Series: 74HC85
• Logic Function: A < B, A = B, A > B
• Product Type: Logic Comparators
• Comparator Type: Magnitude
• Number of Bits: 4 bit
• Output Type: CMOS/TTL
• Supply Voltage – Max: 6 V
• Supply Voltage – Min: 2 V
• Supply Current – Max: 8 uA
• Minimum Operating Temperature: -55°C
• Maximum Operating Temperature: +125°C
• Propagation Delay Time: 195 ns, 39 ns, 33 ns
• Ib – Input Bias Current: 0.008 mA
• Number of Channels: 1 Channel
• Operating Supply Voltage: 2 V to 6 V
• Polarity: Non-Inverting
• Mounting Style: Through Hole
• Package/Case: PDIP-16

Applications:

• 7485 has multiple uses in servers, networking devices, digital systems, and smart electronic devices.
• IC simply used to compare the binary data which allows the other devices to perform other functions.
• The IC comes internally in some embedded systems to perform logical operations