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,.
• 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
• Significant power reduction compared to LSTTL Logic ICs
• HC types
– 2 V to 6 V operation
– High noise immunity: NIL = 30%, NIH = 30% of
VCC at VCC = 5 V
• HCT types
– 4.5 V to 5.5 V operation
– Direct LSTTL input logic c.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | CD74HC85 |
Texas Instruments |
High-Speed CMOS Logic 4-Bit Magnitude Comparator | |
2 | CD74HC85M |
Texas Instruments |
High-Speed CMOS Logic 4-Bit Magnitude Comparator | |
3 | CD74HC86 |
Texas Instruments |
High-Speed CMOS Logic Quad 2-Input EXCLUSIVE-OR Gate | |
4 | CD74HC00 |
Texas Instruments |
High-Speed CMOS Logic Quad 2-Input NAND Gate | |
5 | CD74HC02 |
Texas Instruments |
High-Speed CMOS Logic Quad Two-Input NOR Gate | |
6 | CD74HC03 |
Texas Instruments |
High-Speed CMOS Logic Quad 2-Input NAND Gate | |
7 | CD74HC04 |
Texas Instruments |
High-Speed CMOS Logic Hex Inverter | |
8 | CD74HC08 |
Texas Instruments |
High-Speed CMOS Logic Quad 2-Input AND Gate | |
9 | CD74HC08-EP |
Texas Instruments |
QUADRUPLE 2-INPUT POSITIVE-AND GATES | |
10 | CD74HC08-Q1 |
Texas Instruments |
Automotive Quadruple 2-Input AND Gates | |
11 | CD74HC10 |
Texas Instruments |
Triple 3-Input NAND Gates | |
12 | CD74HC107 |
Texas Instruments |
Dual J-K Flip-Flop |