Wide Operating Voltage Range of 2 V to 6 V
High-Current 3-State Outputs Can Drive Up
To 15 LSTTL Loads
Low Power Consumption, 80-μA Max ICC
Typical tpd = 11 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 μA Max
Independent Registers and Enables for
A and B Buses
Multiplexed Real-Time and Stored Data
True Data Paths

description/ordering information
The ’HC652 devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for
multiplexed transmission of data directly from the data bus or from the internal storage registers. Output-enable
(OEAB and OEBA) inputs are provided to control the transceiver functions. Select-control (SAB and SBA) inputs
are provided to select real-time or stored-data transfer. A low input level selects real-time data, and a high input
level selects stored data. Figure 1 illustrates the four fundamental bus-management functions that can be
performed with these devices.