NXP Semiconductors 74ABTH16646
The 74ABT16646 high–performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive. The 74ABT16646 16-bit transceiver/register consists of two sets of bus transceiver circuits with 3-State outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers.| Part No. | 74ABTH16646 |
|---|---|
| Datasheet | 74ABTH16646 Download |
| Manufacturer |  NXP Semiconductors |
| Description | 16-bit bus transceiver/register |
| Buy | Stock & Price |
FEATURES
● Independent registers for A and B buses● Multiple VCC and GND pins minimize switching noise
● Live insertion/extraction permitted
● Power–up 3-State
● Power–up reset
● Multiplexed real-time and stored data
● Outputs sink 64mA and source 32mA
● Latch–up protection exceeds 500mA per JEDEC Std 17
● 74ABTH16646 incorporates bus-hold data inputs which eliminate the need for external pull-up resistors to hold unused inputs
DESCRIPTION
Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes High. Output Enable (nOE) and Direction (nDIR) pins are provided to control the transceiver function. In the transceiver mode, data present at the high impedance port may be stored in either the A or B register or both. The select (nSAB, nSBA) pins determine whether data is stored or transferred through the device in real-time. The nDIR determines which bus will receive data when the nOE is active Low. In the isolation mode (nOE = High), data from Bus A may be stored in the B register and/or data from Bus B may be stored in the A register.
