High-Speed Isolation Switch
Description
FSA1208 — Low-Power, Eight-Port, High-Speed Isolation Switch
FSA1208 Low-Power, Eight-Port, High-Speed Isolation Switch
Features
Low On Capacitance: 6 pF Typical Low On Resistance: 15 Ω Typical Low Pow er Consumption: 1 A Maximum 10 μA Maximum ICCT over an Expanded Voltage
Range (VIN=2.
3 V, VCC=4.
3 V)
Wide -3 dB Bandw idth: > 400 MHz Packaged in Space-Saving 20-Lead MLP
(2.
5 x 4.
5 mm)
7.
5 kV ESD Rating; >16 kV Pow er/GND ESD
Rating
Low COFF Capacitance: 2.
5 pF Typical
Applications
DIMM DDR Memory
Description
The FSA1208 is a low -pow er, eight-port, high-speed sw itch.
This part is configured as a single-pole, singlethrow sw itch and is optimized for isolating a highspeed source, such as a DDR memory bus.
The FSA1208 features an extremely low on capacitance (CON) of 6 pF Superior channel-to-channel crosstalk minimizes interference.
The FSA1208 contains special circuitry on the A & B pins that allow s the device to w ithstand an over-voltage condition.
This device is also designed to minimize current consumption even w hen the control voltage applied to the /OE pin is low er than the supply voltage (VCC).
Applications include port isolation and sw itching in DDR memory modules, portable cell phones, PDAs, digital cameras, printers, and notebook computers.
Ordering Information
Part Number Top Mark
FSA1208BQX
F1208
Operating Temperature Range
-40 to +85°C
Package
20-Lead, Quad, Molded Leadless Package (MLP), 2.
5 x 4.
5 mm
DIMM
1A
2A
3A
4A
5A
6A
7A
8A
FSA1208
OE
VCC
1B
2B
3B
4B
5B
6B
7B
8B
DIMM DIMM Slot
Figure 1.
Analog Sym bol
© 2008 Semiconductor Components Industries, LLC October-2017, Rev.
2
Publication Order Number: FSA1208/D
FSA1208 — Low-Power, Eight-Port, High-Speed Isolation Switch
Pin Configurations
19 18 17 16 15 14 13 12
20
11
1
10
23456789
B1 B2 B3 B4 B5 B6 B7 B8
/OE VCC
NC GND
A1 A2 A3 A4 A5 A6 A7 A8
Figure 2.
Pin Assignm ents for MLP (Top Through View )
Pin Definitions
Pin #
20 2-9 12-19 11 1...
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