PI3B3244QE Pericom Semiconductor, PI3B3244QE Datasheet

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PI3B3244QE

Manufacturer Part Number
PI3B3244QE
Description
IC 8-BIT BUS SW 2-PORT 20-QSOP
Manufacturer
Pericom Semiconductor
Type
Bus Switchr
Datasheet
1.PI3B3244LE.pdf (5 pages)

Specifications of PI3B3244QE

Circuit
4 x 1:1
Independent Circuits
2
Voltage Supply Source
Single Supply
Voltage - Supply
3.3V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-QSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output High, Low
-
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2
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)
• Pin compatible with 74 series 244 logic devices
• Packaging:
Block Diagram
– Ideally suited for notebook applications
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 173-mil wide plastic TSSOP (L)
BE
BE
1A
1A
1A
1A
2A
2A
2A
2A
0
1
2
3
2
0
1
2
3
1
SW
SW
SW
SW
SW
SW
SW
SW
1B
1B
1B
1B
2B
2B
2B
2B
0
1
0
1
0
1
2
3
A
SW
BE
B
1
Pin Configuration
Truth Table
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.
Pin Description
Note:
1. H = High Voltage Level, L = Low Voltage Level
Pin Name
BEn
A
B
GND
V
B
0
CC
0
H
H
L
L
E
–
–
1
7
7
GND
B
BE 1
(1)
1
2
1
2
1
2
1
2
H
H
L
L
E
A
B
A
B
A
B
A
B
2
0
3
1
2
2
1
3
0
Description
Bus Enable Input (Active LOW)
Bus A
Bus B
Ground
Power
8-Bit, 2-Port NanoSwitch™
D
D
1
2
3
4
5
6
7
8
9
10
1
1
1
c s i
c s i
A
A
, A
n o
n o
20-Pin
=
=
Q,L
1
e n
e n
1
1
B
B
B
t c
t c
3.3V, Hot Insertion,
20
19
18
17
16
15
14
13
12
11
D
D
2
2
2
c s i
c s i
A
A
, A
n o
n o
=
=
Vcc
BE
1
2
1
2
1
2
1
2
2
B
A
B
A
B
A
B
A
e n
e n
2
2
B
PI3B3244
0
3
1
2
2
1
3
0
B
B
2
t c
t c
PS8149F
08/25/04

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PI3B3244QE Summary of contents

Page 1

... SW 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 ...

Page 2

...

Page 3

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Page 4

... X.XX IN MILLIMETERS Packaging Mechanical: 20-Pin TSSOP ( .252 .260 6.4 6.6 .0256 .007 BSC .012 0.19 0.65 0.30 Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com .150 3.81 .157 3.99 Guage Plane .010 0.254 Detail A .053 1.35 .069 1.75 SEATING PLANE .004 0.101 ...

Page 5

... Ordering Information Ordering Code PI3B3244Q PI3B3244QE PI3B3244L PI3B3244LE Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com Package Code Q 20-pin QSOP Q Pb-free & Green, 20-pin QSOP L 20-pin TSSOP L Pb-free & Green, 20-pin TSSOP ...

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