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Pericom Semiconductor Corporation

PI3C3244 Datasheet Preview

PI3C3244 Datasheet

2.5V/3.3V/ High Bandwidth/ Hot Insertion/ 8-Bit/ 2-Port Bus Switch

No Preview Available !

PI3C32441122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
Product Features
• Near zero propagation delay
• High Bandwidth (>400 MHz)
• Rail-to-Rail3.3Vor2.5VSwitching
• 5V I/O Tolerant
• 2.5V Supply Voltage Operation
• Permits Hot Insertion
• Pin compatible with 74 series 244 logic devices
• Packages available:
– 20-pin 150 mil wide plastic QSOP (Q)
2.5V/3.3V, High Bandwidth, Hot Insertion,
8-Bit, 2-Port Bus Switch
Product Description
Pericom Semiconductor’s PI3C series of logic circuits are produced
using the Company’s advanced submicron CMOS technology,
achieving industry leading performance.
The PI3C3244 features a set of 2.5V or 3.3V 8-bit bus switches,
which is a 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. It is very useful in switching signals that have high
bandwidth (>400 MHz).
– 20-pin 173 mil wide plastic TSSOP (L)
Logic Block Diagram
Product Pin Configuration
*-
) *
) *
) *
)! *
*-
) *
BE1
1A0
2B3
1A1
2B2
1A2
2B1
1A3
2B0
GND
1 20
2 19
3 18
4 20-Pin 17
5 L,Q 16
6 15
7 14
8 13
9 12
10 11
VCC
BE2
1B0
2A3
1B1
2A2
1B2
2A1
1B3
2A0
) *
)*
)! *!
Product Pin Description
Pin Name
Description
BEn Bus Enable Input (Active LOW)
A0–7
Bus A
B0–7
Bus B
GND
Ground
VCC Power
Truth Table(1)
BE1 BE2
HH
LH
HL
LL
Note:
1. H = High Voltage Level
L = Low Voltage Level
1A, 1B
Disconnect
1A = 1B
Disconnect
1A = 1B
2A, 2B
Disconnect
Disconnect
2A = 2B
2A = 2B
1 PS8149B 12/10/99




Pericom Semiconductor Corporation

PI3C3244 Datasheet Preview

PI3C3244 Datasheet

2.5V/3.3V/ High Bandwidth/ Hot Insertion/ 8-Bit/ 2-Port Bus Switch

No Preview Available !

PI3C3244
2.5V/3.3V, High Bandwidth,
112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566H7788o9900t11I22n1122s33e4455r66t77i88o9900n11,2233844-55B6677i88t99,0021122-33P4455o66r7788t99B0011u2211s2233S44w556677i88t99c00h1122
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature..................................................... –65°C to +150°C
Note:
Stresses greater than those listed under MAXIMUM
Ambient Temperature with Power Applied ....................... –40°C to +85°C RATINGS may cause permanent damage to the device.
Supply Voltage to Ground Potential .................................. –0.5Vto+4.6V
DC Input Voltage ............................................................... –0.5Vto+5.5V
DC Output Current ......................................................................... 120mA
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
Power Dissipation ............................................................................. 0.5W conditions for extended periods may affect reliability.
1
2
3
DC Electrical Characteristics (Over 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 A, B VCC
VIK Clamp Diode Voltage
RON
Switch On Resistance(4)
VCC = Min., IIN = –18mA
VCC = Min., VIN = 0.0V, ION = 48mA or 64mA
VCC =Min.,VIN =2.4V, ION = 15mA
Typ.(2) Max.
–0.73
5
8
0.8
±1
±1
±1
–1.2
7
15
Units
V
µA
V
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(5) 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. Units
3.5
5.0 pF
10.0
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. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. 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.
5. This parameter is determined by device characterization but is not production tested.
4
5
6
7
8
9
10
11
12
13
14
15
2 PS8149B 12/10/99


Part Number PI3C3244
Description 2.5V/3.3V/ High Bandwidth/ Hot Insertion/ 8-Bit/ 2-Port Bus Switch
Maker Pericom Semiconductor Corporation
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PI3C3244 Datasheet PDF






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