PI5C3125
PI5C3126
4-Bit Bus Switch
with Individual Enables
Features
• Near-Zero propagation delay
• 5Ω switches connect inputs to outputs
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.1µA Typical)
– Ideally suited for notebook applications
• Packaging (Pb-free & Green available):
– 14-pin 150-mil wide plastic SOIC (W)
– 14-pin 173-mil wide plastic TSSOP (L)
– 16-pin 150-mil wide plastic QSOP (Q)
Description
Pericom Semiconductor’s PI5C3125 and PI5C3126 are 4-bit Bus
Switches designed with four individual 5Ω bus switches with fast
indiviual enables in an industry standard 74XX125/126 pinout.
When enabled via the associated Bus Enable (BE) pin, the “A” pin
is directly connected to the “B” pin for that particular gate. The
bus switch introduces no additional propagation delay or additional
ground bounce noise.
The PI5C3125 device has active LOW enables, and the PI5C3126
has active HIGH enables.
PI5C3125 Block Diagram
A0
BE0
A1
BE1
A2
BE2
A3
BE3
B3
B2
B1
B0
PI5C3126 Block Diagram
A0
BE0
A1
BE1
A2
BE2
A3
BE3
B3
B2
B1
B0
1
PS7013F
09/13/04
PERICOM [ PERICOM SEMICONDUCTOR CORPORATION ]
