PO3B3305A
Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
High Bandwidth Potato Chip
10/28/07
FEATURES:
• Patented technology • High signal -3db passing bandwidth at 1.6GHz • Near-Zero propagation delay • VCC = 1.65V to 3.6V • Ultra-Low Quiescent Power: 0.1µA typical • Ideally suited for low power applications • Industrial operating temperature: -40°C to +85°C • Available in 8pin TSSOP package
DESCRIPTION:
Potato Semiconductor’s PO3B3305A is designed for world top performance using submicron CMOS technology to achieve GHz high bandwidth. The PO3B3305A is a Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables Bus Switch. The switch introduces no additional ground bounce noise or propagation delay.
Pin Configuration
BE1 A1 B1 GND VCC BE2 B2 A2
Block Diagram
A1 BE1 A2 BE2 B2 B1
Pin Description
Pin Name BE n A 2 -A 1 B2 - B 1 V CC GN D Description Sw itch Enable Bu s A Bu s B Power Gr oun d
Truth Table
BEn X L H An Bn VCC GND V CC V CC Function Disconnect Disconnect Connect Hi-Z Hi-Z Hi-Z Hi-Z Bn An
1
Copyright © Potato Semiconductor Corporation
High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
PO3B3305A
03/08/08
High Bandwidth Potato Chip
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Note:
S t r e ss e s g r eate r t han t h os e l i s te d u n d e r M AXIMU M RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Storage Temperature ................................................ –65°C to +150°C Ambient Temperature with Power Applied ............... –40°C to +85°C Supply Voltage to Ground Potential ........................... –0.5V to +4.6V DC Input Voltage ........................................................ –0.5V to +Vcc DC Output Current................................................................... 120mA Power Dissipation ....................................................................... 0.5W
(Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%) Parameters VIH VIL IIH IIL IOZH RON Description Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current
DC Electrical Characteristics, 3.3V Supply
Test Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND VCC = Min., VIN = 0.0V, Switch On-Resistance ION = -48 mA or -64mA VCC = Min., VIN = VCC , ION = -15 mA Min. 2.0 0.8 ±1 ±1 ±1 9 12 13 16 Ω µA Typ. Max. Units V
High Impedance Output Current 0 ≤ Y, In ≤ VCC
(Over Operating Range, TA = –40°C to +85°C, VCC = 2.5V ± 10%) Parameters VIH VIL IIH IIL IOZH RON Description Input HIGH Voltage Inout LOW Voltage Input HIGH Current Input LOW Current High Impedance Current Switch On Resistance
DC Electrical Characteristics, 2.5V Supply
Test Conditions Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max., VIN = VCC VCC = Max., VIN = GND 0 ≤ Y, In ≤ VCC VCC = Min., VIN = 0.0V, ION = –48mA VCC = Min., VIN = 2.25V, ION = -15mA 18 18 Min. 1.8 –0.3 Typ. Max. VCC + 0.3 0.8 ±1 ±1 ±1 22 Ω 22 µA Units V
2
C opyright © Potato Semiconductor Corporation
High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
PO3B3305A
10/22/07
High Bandwidth Potato Chip
Power Supply Characteristics
Symbol Description
Quiescent Power Supply Current
Test Conditions (1)
Vcc=Max, Vin=Vcc or GND
Min
Typ
Max
Unit
Icc
Notes:
1. 2. 3. 4. 5.
-
0.1
3
uA
For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type. Typical values are at Vcc = 3.3V, 25° C ambient. This parameter is guaranteed but not tested. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. VoH = Vcc – 0.6V at rated current
Capacitance
Parameters CIN COFF CON
(TA = 25°C f = 1 MHz) Test Conditions VIN = 0V VIN = 0V VIN = 0V Typ. 3.5 4.0 8.0 Units pF pF pF
Description Input Capacitance A/B Capacitance, Switch Off A/B Capacitance, Switch On
Dynamic Electrical Characteristics Over the Operating Range
(TA = -40º to +85º, VCC = 3.3V ± 10%) Parameter XTALK OIRR BW Description Crosstalk Off-Isolation -3dB Bandwidth Test Condition RL = 100Ω RL = 100Ω RL = 100Ω Typ. -60 -60 1.6 Units dB GHz
Switching Characteristics over 3.3V Operating Range
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propogation Delay Bus Enable Time See Test Diagram Bus Disable Time 3.0 Conditions See Test Diagram Max. 0.3 2.0 ns Units
3
Copyright © Potato Semiconductor Corporation
High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
PO3B3305A
10/22/07
High Bandwidth Potato Chip
Switching Characteristics over 2.5V Operating Range
Parameters tPLH tPHL tPZH tPZL tPHZ tPLZ Description Propogation Delay Bus Enable Time See Test Diagram Bus Disable Time 3.0 Conditions See Test Diagram Max. 0.3 2.0 ns Units
Test Circuit for Electrical Characteristics
6.0V
VCC
Switch Positions
Test tPLZ, tPZL tPHZ, tPZH Prop Delay Switch 6.0V GND Open
200-ohm
Pulse Generator
VIN
VOUT
D.U.T
RT 10pF CL 200-ohm
Switching Waveforms
SEL 2.5V 1.25V tPZL VDD/2 1.25V 0V Output tPLZ VOL +0.3V tPHZ VDD/2 Output VOH –0.3V VOH VOL VOH VOL
3.5V Input tPLH Output 2.5V 2.5V 2.5V 1.5V tPHL VOH 2.5V VOL
tPZH
Voltage Waveforms Propagation Delay Times
Voltage Waveforms Enable and Disable Times
4
C opyright © Potato Semiconductor Corporation
High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
PO3B3305A
10/22/07
High Bandwidth Potato Chip
Packaging Mechanical Drawing: 8 pin TSSOP
8
SEATING PLANE
X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS
5
C opyright © Potato Semiconductor Corporation
High-Bandwidth, Hot-Insertion, 2-Bit, 2-Port Bus Switch w/ Individual Enables
PO3B3305A
10/22/07
High Bandwidth Potato Chip
Ordering Information
Ordering Code PO3B3305ATU PO3B3305ATR 8-pin TSSOP 8-pin TSSOP Package
Tube Tape and reel Pb-free & Green Pb-free & Green
Top-Marking PO3B3305AT PO3B3305AT
TA -40°C to 85°C -40°C to 85°C
IC Package Information
PACKAGE CODE PACKAGE TYPE TAPE WIDTH (mm) TAPE PITCH (mm) PIN 1 LOCATION TAPE TRAILER LENGTH QTY PER REEL TAPE LEADER LENGTH QTY PER TUBE
T
TSSOP 8
12
8
Top Left Corner
39 (12”)
3000
64 (20”)
158
6
C opyright © Potato Semiconductor Corporation