PI5C3244LE Pericom Semiconductor, PI5C3244LE Datasheet
PI5C3244LE
Manufacturer Part Number
PI5C3244LE
Description
IC 8-BIT BUS SW 2PORT 20-TSSOP
Manufacturer
Pericom Semiconductor
Type
Bus Switchr
Specifications of PI5C3244LE
Circuit
4 x 1:1
Independent Circuits
2
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Current - Output High, Low
-
Lead Free Status / Rohs Status
Compliant
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
Block Diagram
Features:
• Near-Zero propagation delay
• 5-ohm switches connect inputs to outputs when enabled
• Direct bus connection when switches are ON
• Ultra Low Quiescent Power (0.2μA typical)
• Pin compatible with 74 Series 244 logic devices
• Packaging (Pb-free & Green Available):
Truth Table
Note: 1. H = High Voltage Level
– Ideally suited for notebook applications
– 20-pin 173-mil wide plastic TSSOP (L)
– 20-pin 150-mil wide plastic QSOP (Q)
– 20-pin 300-mil wide plastic SOIC (S)
BE
H
H
L
L
1
06-0239
L = Low Voltage Level
BE
BE
1A
1A
1A
1A
2A
2A
2A
2A
1
0
1
2
3
2
0
1
2
3
(1)
BE
H
H
L
L
2
Disconnect
Disconnect
1A = 1B
1A = 1B
1A, 1B
1B
1B
1B
1B
2B
2B
2B
2B
Disconnect
Disconnect
2A = 2B
2A = 2B
0
1
2
3
0
1
2
3
2A, 2B
1
Pin Description
Pin Configuration
Description:
Pericom Semiconductor’s PI5C3244 features a set of eight bus
switches which is pinout and function compatible with the
PI74FCT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two
enable signals (BEn) turn the switches on similar to the enable
signals of the 244. The bus switch creates no additional propagation
delay or ground bounce noise.
Pin Name
BEn
A
B
GND
V
0
0
CC
-A
-B
3
3
GND
BE
2
1
2
1
2
1
2
1
B
A
B
A
B
Description
Bus Output Enable (Active LOW)
Bus A
Bus B
Ground
Power
A
B
A
2
2
1
3
0
1
0
3
1
1
2
3
4
5
6
7
8
9
10
8-Bit, 2-Port Switch
20
19
18
17
16
15
14
13
12
11
V
BE
1
2
1
2
1
2
1
2
B
A
B
A
B
A
B
A
CC
PS7014E
0
3
1
2
2
1
3
0
2
PI5C3244
05/12/06
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PI5C3244LE Summary of contents
Page 1
... Note High Voltage Level L = Low Voltage Level 06-0239 Description: Pericom Semiconductor’s PI5C3244 features a set of eight bus switches which is pinout and function compatible with the PI74FCT244T, 74F244, and 74ALS/AS/LS 244 8-bit drivers. Two enable signals (BEn) turn the switches on similar to the enable signals of the 244 ...
Page 2
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Page 5
... Max. BSC 0.25 0.65 Ordering Information Ordering Code PI5C3244Q PI5C3244QE PI5C3244L PI5C3244LE PI5C3244S PI5C3244SE Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • Pb-free & Green • Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0239 5 ...