1 Features
• Buffered inputs
• Three-state outputs
• Bus line driving capability
• Typical propagation delay (A to B, B to A) 9ns at
VCC = 5V, CL = 15pF, TA = 25°C
• Fanout (over temperature range)
– Bus driver outputs :15 LSTTL loads
• Wide operating temperature range : -55°C to
125°C
• 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 compatibility, VIL= 0.8
V (Max), VIH = 2 V (Min)
– CMOS input compatibility, Il ≤ 1μA at VOL, VOH

2 Description
The CDx4HC(T)245 is an octal bus transceiver with
3-state outputs. All eight channels are controlled by
the direction (DIR) pin and output enable (OE) pin.