HD74ALVCH16500
HD74ALVCH16500 is 18-bit Universal Bus Transceivers with 3-state Outputs manufactured by Hitachi Semiconductor.
18-bit Universal Bus Transceivers with 3-state Outputs
ADE-205-167A (Z) 2nd. Edition December 1999 Description
Data flow in each direction is controlled by output enable (OEAB and OEBA), latch enable (LEAB and LEBA), and clock ( CLKAB and CLKBA) inputs. For A to B data flow, the device operates in the transparent mode when LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is low, the A bus data is stored in the latch flip flop on the high to low transition of CLKAB. Output enable OEAB is active high. When OEAB is high, the B port outputs are active. When OEAB is low, the B port outputs are in the high impedance...
