janelee

NOWADAYS IC FIELD HAS BEEN DEVELOPING FASTER AND FASTER. AS YOU KNOW, ELECTRON BECOME THE MOST IMPORTANT PART IN DAILY LIFE. SO, IF YOU WANT IC, WILL YOU CONSIDER A BETTER PRODUCT IN LOWER PRICE. I RECOMMEND A WEB CALLED http://www.chinaicmart.com WHICH MAY BE USEFUL FOR YOU.

HERE IS A EXAMPLE FOR YOU TO REFER.
PRODUCT:IC74ABTH16821ADGG
DESCRIPTION
The 74ABT16821A high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16821A has two 10-bit, edge triggered registers, with
each register coupled to a 3-State output buffer. The two sections of
each register are controlled independently by the clock (nCP) and
Output Enable (nOE
) control gates.
Each register is fully edge triggered. The state of each D input, one
set-up time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop!fls Q output
The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors.
The active Low Output Enable (nOE
) controls all ten 3-State buffers
is Low, the data in
independent of the register operation. When nOE
the register appears at the outputs. When nOE
is High, the outputs
are in high impedance !off!– state, which means they will neither dri
nor load the bus.
Two options are available, 74ABT16821A which does not have the
bus-hold feature and 74ABTH16821A which incorporates the
bus-hold feature.