PERIC PI2BV3867L, PI2BV3867Q Datasheet
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PI2BV3867
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1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012
2.5V, 10-Bit, 2-Port 266 MHz DDR BusSwitch
ProductFeatures |
ProductDescription |
•Used in x8 DDR Memory Module
•Near zero propagation delay
•20 Ohm switches connect inputs to outputs
•Fast Switching Speed –3ns (max.)
•Low Off Capacitance (3pF)
•Pull-down on B output
•Pull-up on Switch Enable
•Packages available:
–24-pin 150 mil wide plastic QSOP (Q)
–24-pin 173 mil wide plastic TSSOP (L)
Pericom Semiconductor’s PI2B series of logic circuits are produced using the Company’s advanced submicron CMOS technology, achieving industry leading performance.
The PI2BV3867 is a 10-bit, 2.5 volt two-port bus switch designed with a low ON resistance allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal.
The PI2BV3867 switch is intended for 266 MHz DDR(x8) Memory Module Applications.
Logic Block Diagram |
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ProductPinConfiguration |
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NC |
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Vcc |
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A0 |
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B0 |
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1 |
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24 |
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A0 |
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2 |
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23 |
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B0 |
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A1 |
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3 |
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22 |
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B1 |
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A2 |
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4 |
24-Pin |
21 |
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B2 |
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A9 |
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B9 |
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A3 |
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5 |
20 |
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B3 |
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Q, L |
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A4 |
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6 |
19 |
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B4 |
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VCC |
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A5 |
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7 |
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18 |
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B5 |
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A6 |
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8 |
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17 |
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B6 |
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A7 |
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9 |
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16 |
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B7 |
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A8 |
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10 |
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15 |
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B8 |
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BE |
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A9 |
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11 |
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14 |
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B9 |
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GND |
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12 |
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13 |
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BE |
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ProductPinDescription
PinName |
Description |
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Bus Enable Input (Active LOW) |
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BE |
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A0–9 |
Bus A |
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B0–9 |
Bus B |
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GND |
Ground |
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VCC |
Power |
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TruthTable(1)
Function |
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BE |
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A0–A9 |
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Disconnect |
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H |
Hi-Z |
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Connect |
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L |
B0–9 |
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Notes:
H = High Voltage Level
L = Low Voltage Level
Hi-Z = High Impedance
1 |
PS8471A |
05/02/00 |
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PI2BV3867 |
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2.5V, 10-Bit, 2-Port |
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266 MHz DDR BusSwitch |
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 |
2123456789012 |
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 |
2123456789012 |
MaximumRatings
(Above which the useful life may be impaired. For user guidelines, not tested.)
...........................................................Storage Temperature |
–65°Cto+150°C |
Ambient Temperature with Power Applied .......................... |
–40°Cto+85°C |
Supply Voltage to Ground Potential (Inputs & VCC Only) ..... |
–0.5Vto+4.6V |
Supply Voltage to Ground Potential (Outputs & D/O Only) |
.. –0.5Vto+4.6V |
DC Input Voltage .................................................................... |
–0.5Vto+4.6V |
DC Output Current ............................................................................. |
120mA |
Power Dissipation ................................................................................ |
0.5W |
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Note:
Stresses greater than those listed under MAXIMUM 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.
DC Electrical Characteristics (Over the Operating Range, TA = 0°C to +85°C, V CC = 2.3V to 2.7V)
Parameters |
Description |
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TestConditions(1) |
Min. |
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Typ.(2) |
Max. |
Units |
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VIH |
InputHIGHVoltage |
(BE) |
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GuaranteedLogicHIGHLevel |
1.6 |
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VCC+0.3 |
V |
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VIL |
Input LOW Voltage (BE) |
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Guaranteed Logic LOW Level |
–0.3 |
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0.9 |
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IOZH |
High Impedance Output Current |
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B@2.5V |
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250 |
µA |
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VIK |
Clamp Diode Voltage |
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VCC = Min., IIN = –18mA |
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–1.2 |
V |
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RON |
Switch On Resistance(4) |
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VCC = Min., VIN = 0.9V, ION = 20mA |
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17 |
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33 |
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Ω |
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VCC = Min., VIN = 1.6V, ION = 15mA |
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22 |
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30 |
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RPU |
Pull-up Resistance |
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115 |
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150 |
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200 |
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Capacitance(TA = 25°C, f = 1 MHz) |
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Parameters(4) |
Description |
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Test Conditions |
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Typ. |
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Units |
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CIN |
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Input Capacitance |
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VIN = 0V |
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3 |
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COFF |
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A Capacitance, Switch Off |
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VIN = 0V |
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3 |
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pF |
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CON (A/B) |
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A/B Capacitance, Switch On |
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VIN = 0V |
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7 |
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Notes:
1.For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2.Typical values are at VCC = 2.5V, TA = 25°C ambient and maximum loading.
3.Measured by the voltage drop between A and B pin at indicated current through the switch. ON resistance is determined by the lower of the voltages on the two (A,B) pins.
4.This parameter is determined by device characterization but is not production tested.
Power Supply Characteristics
Parameters |
Description |
Test Conditions(1) |
Min. |
Typ.(2) |
Max. |
Units |
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ICC |
Quiescent Power |
VCC = Max. |
VIN = VCC |
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10 |
µA |
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Supply Current |
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VIN = GND |
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28 |
mA |
Notes:
1.For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2.Typical values are at VCC = 2.5V, +25°C ambient.
3.Per TTL driven input (control input only); A and B pins do not contribute to ICC.
2 |
PS8471A |
05/02/00 |
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