鈩?/div>
Zero propagation delay
Direct bus connect
Live insertion capability
Low power CMOS proprietary technology
Bus exchange allows nibble swap
TTL-compatible control inputs
Available in 80-pin Millipaq package
The QS34X383 provides four sets of eight high-speed CMOS TTL-
compatible bus switches. The low ON resistance (5鈩? of the QS34X383
allows inputs to be connected to outputs without adding propagation delay
and without generating additional ground bounce noise. The Bus Enable
(BEx) signals turn the switches on. The Bus Exchange (BXx) signals
provide nibble swap of the AB and CD pairs of signals. This exchange
configuration allows byte swapping of buses in systems. It can also be used
as a 16-bit 2-to-1 multiplexer and to create low delay barrel shifters, etc.
The QS34X383 is characterized for operation at -40擄C to +85擄C.
DESCRIPTION:
FUNCTIONAL BLOCK DIAGRAM
A0
C0
A4
C4
B0
D0
B4
D4
A3
C3
A7
C7
B3
D3
B7
D7
BX1
BE1
BX2
BE2
A8
C8
A12
C12
B8
D8
B12
D12
A11
C11
A15
C15
B11
D11
B15
D15
BX3
BE3
BX4
BE4
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
1
c
1999
Integrated Device Technology, Inc.
NOVEMBER 1999
DSC-5573/1