1/10October 2004
a73 HIGH SPEED: t
PD
= 0.25ns (MAX.)
at V
CC
= 4.5V T
A
=85°C
a73 ON RESISTANCE BETWEEN TWO PORT:
5Ω (TYP) at V
CC
= 5.0V T
A
=25°C
a73 LOW POWER DISSIPATION:


I
CC
= 1uA(MAX.) at T
A
=25°C
a73 COMPATIBLE WITH TTL OUTPUTS:
V
IH
=2V(MIN), V
IL
=0.8V(MAX)
a73 POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
a73 OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 4V to 5.5V
a73 PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16861
a73 IMPROVED LATCH-UP IMMUNITY
a73 ESD PERFORMANCE:
HBM > 2000V (MIL STD 883 method 3015);
MM > 200V
DESCRIPTION
The B5S16861 is an advanced high-speed CMOS
20-BIT TWO PORT BUS SWITCH fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
It is ideal for 4V to 5.5V V
CC
operations and
ultra-low power and low noise applications,
typically notebook and docking station.
Any nG output control governs two 10-bit BUS
SWITCHES. Output Enable inputs (nG) tied
together gives full 20-bit operations. When nG is
LOW, the switches are on. When nG is HIGH, the
switches are in high impedance state.
It has ultra high-speed performance at 5V near
zero delay with low ON resistance.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
B5S16861
20-BIT TWO PORT BUS SWITCH
This is preliminary information on a new product now in development are or undergoing evaluation. Details subject to change without notice.

Table 1: Order Codes
PACKAGE T & R
TSSOP48 B5S16861TTR
TSSOP
PRELIMINARY DATA
Figure 1: Pin Connection
Rev. 1