PI3L110LEX Datasheet, PDF (1/6 Pages) Pericom Semiconductor Corporation – 3.3V Quad, 2:1 Mux/DeMux Fast Ethernet LAN Switch w/ Single Enable

Features
• R_ON is 4Ω typical
• Low crosstalk: –27dB @ 250 MHz
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On capacitance: 9pF (typical)
• V_CC Operating Range: +3.0V to +3.6V
• >2kV ESD protection (human body model)
• >350 MHz bandwidth (or data frequency)
• Switching on Data I/O Ports (0 to 5V)
• I_OFF supports Partial-Power-Down mode operation
• Data and Control Inputs have Undershoot Clamp Diodes
• Packaging (Pb-free & Green available)
– 16-pin 150-mil wide plastic QSOP (Q)
– 16-pin 173-mil wide plastic TSSOP (L)
Applications
• Dual Physical Layer Device sharing to one interface
connector
• Routes signals for 10/100 Mbit Ethernet
PI3L110
3.3V Quad, 2:1 Mux/DeMux
Fast Ethernet LAN Switch w/ Single Enable
Description
The PI3L110 is a 8- to 4-bit multiplexer/demultiplexer LAN
Switch with Hi-Z outputs. Industry leading advantages include a
propagation delay of less than 250ps, resulting from its low channel
resistance and I/O capacitance. The device multiplexes differential
outputs from a Fast Ethernet transceiver (PHY) device to one of
two corresponding outputs. The switch is bidirectional and offers
little or no attenuation of the high-speed signals at the outputs. It
is designed for low bit-to-bit skew, high channel-to-channel noise
isolation and is compatible with various standards, such as 10/100
Base-T (Ethernet).
Generally, this part can be used to replace mechanical relays in
low-voltage LAN applications that interface a physical layer over
CAT 5 or CAT 6 unshielded twisted pair cable through an isolation
transformer.
The PI3L110 is fully specified for partial-power-down applications
using I_OFF. The I_OFF feature ensures that damaging current will
not backflow thoughout the device when it is powered down. The
device has isolation during Power Off.
Block Diagram
IA0 I^A1 I^B0 I^B1 I^C0 I^C1 I^D0 I^D1
E
S
YA
YB
YC
YD
Pin Configuration
S1
I^A0 ²
I^A1 ³
Y_A ⁴
I^B0 ⁵
I^B1 ⁶
Y_B ⁷
GND ⁸
16
V_CC
15 _E
14
I^D0
13
I^D1
12 _YD
11
I^C0
10
I^C1
9
Y_C
07-0076
1
PS8690E
03/23/07