CD74AC623 - Octal Non-Inverting Bus Transceivers with 3-State Outputs

The RCA CD54/74AC623 and CD54/74ACT623 octal-bus transceivers use the RCA ADVANCED CMOS technology. They are non-inverting, 3-state, bidirectional transceiver-buffers that allow for two-way transmission from "A" bus to "B" bus or "B" bus to "A" bus, depending on the logic levels of the Output Enable (OE_AB,(OE)\_BA) inputs.

The dual Output Enable provision gives these devices the capability to store data by simultaneously enabling OE_AB and (OE)\_BA. Each output reinforces its input under these conditions, and when all other data sources to the bus lines are at high-impedance, both sets of bus lines will remian in their last states.

The CD74AC623 is supplied in 20-lead dual-in-line plastic packages E suffix) and in 20-lead small-outline packages (M, M96, and NSR suffixes). The CD74ACT623 is supplied in 20-lead small-outline packages (M96 suffix). Both package types are operable over the following temperature ranges: Commercial (0 to 70°C); Industrial (–40 to +85°C); and Extended Industrial/Military (–55 to +125°C).

The CD54AC623 and CD54ACT623, available in chip form (H suffix), are operable over the -55 to +125°C temperature range.

Products containing the "CD74AC623" keyword are: CD74AC623E , CD74AC623E , CD74AC623EE4 , CD74AC623M , CD74AC623M , CD74AC623M96 , CD74AC623M96E4 , CD74AC623M96G4 , CD74AC623NSR , CD74AC623NSRE4 , CD74AC623NSRG4

• Buffered inputs
• Typical propagation delay:
      4.5 ns @ V_CC = 5 V, T_A = 25°C, C_L = 50 pF
• Exceeds 2-kV ESD Protection - MIL-STD-883, Method 3015
• SCR-Latchup-resistant CMOS process and circuit design
• Speed of bipolar FAST*/AS/S with significantly reduced power consumption
• Balanced propagation delay
• AC types feature 1.5-V to 5.5-V operation and balanced noise immunity at 30% of the supply
• ±24-mA output drive current
  • Fanout to 15 FAST* ICs
  • Drives 50-ohm transmission lines
• Characterized for operation from –40° to 85°C

*FAST is a Registered Trademark of Fairchild Semiconductor Corp.