PI3L500 Datasheet, PDF (1/7 Pages) Pericom Semiconductor Corporation – 3.3V, 8-Channel, 2:1 Mux/DeMux Gigabit Ethernet LAN Switch with Single Enable

PI3L500
3.3V, 8-Channel, 2:1 Mux/DeMux
Gigabit Ethernet LAN Switch with Single Enable
Features
• R_ON is 4Ω typical
• Low bit-to-bit skew: 200ps
• Low Crosstalk: –22dB @ 250MHz
• Near-Zero propagation delay: 250ps
• Switching speed: 9ns
• Channel On capacitance: 10pF (typical)
• Live Insertion Capable
• Status Indicator LEDs Switched with Ethernet pairs
• V_CC Operating Range: +3.0V to +3.6V
• ESD>3000V . . . Human Body Model
• >350 MHz bandwidth (or data frequency)
• Packaging:
· Pb-free and Green 56-contact TQFN (ZF)
· 56-contact TQFN (ZF)
Applications
• Dual Physical Layer Device sharing to one interface
connector
• Routes signals for 10/100/1000 Mbit Ethernet
Block Diagram
A0
A1
A₆
A7
LED_X
0B1
1B1
0B2
1^B2
6B1
7B1
6B2
7B2
XLED1
XLED2
SEL
Description
Pericom Semiconductor’s PI3Lseries of switch circuits are produced
using the Company’s advanced sub-micron CMOS technology,
achieving industry leading performance.
The PI3L500 is a 16- to 8- Channel 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 Gigabit Ethernet transceiver (PHY) device to one
of two corresponding B1 or B2 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 10/100/1000 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.
Pin Description
GND 1
A0 2
A1 3
VDD ⁴
N.C. ⁵
GND ⁶
A2 ⁷
A3 ⁸
GND ⁹
VDD ¹⁰
A4 ¹¹
A5 ¹²
GND ¹³
A6 ¹⁴
A7 ¹⁵
GND ¹⁶
SEL ¹⁷
VDD ¹⁸
LED0 ¹⁹
LED1 ²⁰
48 ₀B₁
47 ₁B₁
46 _0B2
45 _1B2
44 _GND
43 _2B1
42 _3B1
41 _2B2
40 _3B2
39 _GND
38 _VDD
37 _4B1
36 _5B1
35 _4B2
34 _5B2
33 _GND
32 _6B1
31 _7B1
30 _6B2
29 _7B2
1
PS8719A
03/01/05