CDx4HC85, CDx4HCT85 High-Speed CMOS Logic 4-Bit Magnitude Comparator

1 Features

Buffered inputs and outputs
Typical propagation delay: 13 ns (data to output at V_CC = 5 V, C_L = 15 pF, T_A = 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: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5 V
HCT types
- 4.5 V to 5.5 V operation
- Direct LSTTL input logic compatibility,
  V_IL = 0.8 V (max), V_IH = 2 V (min)
- CMOS input compatibility, I_I ≤ 1 μA at V_OL, V_OH