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Pericom Semiconductor Corporation

PI3B3244 Datasheet Preview

PI3B3244 Datasheet

3.3V/ Hot Insertion/ 8-Bit/ 2-Port NanoSwitch

No Preview Available !

PI3B32441122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
3.3V, Hot Insertion,
8-Bit, 2-Port NanoSwitch
Features
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs when enabled
• Fast Switching Speed - 4.5ns max.
• Ultra-Low Quiescent Power (0.2µA Typical)
– Ideally suited for notebook applications
• Pin compatible with 74 series 244 logic devices
• Packaging:
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 173-mil wide plastic TSSOP (L)
Description
Pericom Semiconductor’s PI3B series of logic circuits are produced
using the Company’s advanced sub-micron CMOS technology,
achieving industry leading performance.
The PI3B3244 features a set of 3.3V 8-bit bus switches, which is
pinout and function compatible with the P74FCT244T, 74F244, and
74ALS/AS/LS2448-bit drivers. Two enable signals (BEn) turn the
switches on similar to the enable signals of the 244. The bus switch
create no additional propagation delay or ground bounce noise.
Block Diagram
BE1
1A0
1A1
1A2
1A3
SW
SW
SW
SW
BE2
2A0
2A1
2A2
2A3
SW
SW
SW
SW
Pin Configuration
1B0
1B1
1B0
1B1 SW
AB
2B0 BE
2B1
2B2
2B3
BE1
1A0
2B3
1A1
2B2
1A2
2B1
1A3
2B0
GND
1
2
3
4
5 20-Pin
6 Q,L
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Vcc
BE2
1B0
2A3
1B1
2A2
1B2
2A1
1B3
2A0
Pin Description
Pin Name
Description
BEn Bus Enable Input (Active LOW)
A07
Bus A
B07
Bus B
GND Ground
VCC Power
Truth Table(1)
BE1 BE2
1A, 1B
2A, 2B
H H Disconnect Disconnect
L H 1A = 1B Disconnect
H
L
Disconnect
2A = 2B
L
L
1A = 1B
2A = 2B
Note:
1. H = High Voltage Level, L = Low Voltage Level
1 PS8149F 08/25/04




Pericom Semiconductor Corporation

PI3B3244 Datasheet Preview

PI3B3244 Datasheet

3.3V/ Hot Insertion/ 8-Bit/ 2-Port NanoSwitch

No Preview Available !

PI3B3244
3.3V, Hot Insertion
1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567889-0B12i3t4,5627-8P90o12r3t45N67a89n0o12S12w34i5t6c7h89012
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................... –65°C to +150°C
Ambient Temperature with Power Applied ..................................... –40°C to +85°C
Supply Voltage to Ground Potential ................................................. –0.5Vto+4.6V
DC Input Voltage .............................................................................. –0.5Vto+4.6V
DC Output Current ....................................................................................... 120mA
Power Dissipation ............................................................................................ 0.5W
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 = –40°C to +85°C, VCC =3.3V ±10%)
Parameters Description
Test Conditions(1)
Min.
VIH Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
VIL Input LOW Voltage
Guaranteed Logic LOW Level
–0.5
IIH Input HIGH Current
VCC = Max., VIN = VCC
IIL Input LOW Current
VCC = Max., VIN = GND
IOZH
High Impedance Output Current 0 IN, YN VCC
VIK Clamp Diode Voltage
RON
Switch On Resistance(3)
VCC = Min., IIN = –18mA
VCC = Min.,VIN = 0.0V, ION = 48mA or 64mA
VCC = Min.,VIN = 2.4V, ION = 15mA
Typ(2)
5
10
Max.
0.8
±1
±1
±1
–1.2
8
17
Units
V
V
µA
µA
µA
V
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4) Description
CIN
COFF
Input Capacitance
A/B Capacitance, Switch Off
CON A/B Capacitance, Switch On
Test Conditions
VIN = 0V
VIN = 0V
VIN = 0V
Typ.
3.0
8.0
16.0
Units
pF
pF
pF
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 = 3.3V, 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.
2 PS8149F 08/25/04


Part Number PI3B3244
Description 3.3V/ Hot Insertion/ 8-Bit/ 2-Port NanoSwitch
Maker Pericom Semiconductor Corporation
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PI3B3244 Datasheet PDF






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