PI5C3244P Pericom Semiconductor, PI5C3244P Datasheet
PI5C3244P
Manufacturer Part Number
PI5C3244P
Description
8-bit,2-port bus switch
Manufacturer
Pericom Semiconductor
Datasheet
1.PI5C3244P.pdf
(3 pages)
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
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
Logic Block Diagram
Product Features:
• Near zero propagation delay
• 5 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
• Packages available:
Truth Table
Note: 1. H = High Voltage Level
– Ideally suited for notebook applications
– 20-pin 173 mil wide plastic TSSOP (L)
– 20-pin 300 mil wide plastic DIP (P)
– 20-pin 150 mil wide plastic QSOP (Q)
– 20-pin 300 +mil wide plastic SOIC (S)
H
H
L
L
L = Low Voltage Level
(1)
H
H
L
L
BE
BE
1A
1A
1A
1A
2A
2A
2A
2A
1
0
1
2
3
2
0
1
2
3
Disconnect
Disconnect
1A = 1B
1A = 1B
Disconnect
Disconnect
1B
1B
1B
1B
2B
2B
2B
2B
2A = 2B
2A = 2B
0
1
2
3
0
1
2
3
140
Product Pin Description
Product Pin Configuration
Product Description:
Pericom Semiconductor’s PI5C series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading performance.
The 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
A
B
A
Description
2
2
1
3
0
Bus Output Enable (Active LOW)
Bus A
Bus B
Ground
Power
1
0
3
1
1
2
3
4
5
6
7
8
9
10
8-Bit, 2-Port BusSwitch
20-PIN
Q20
L20
P20
S20
8-B
20
19
18
17
16
15
14
13
12
11
IT
, 2-P
V
BE
1
2
1
2
1
2
1
2
B
A
B
A
B
A
B
A
CC
ORT
0
3
1
2
2
1
3
0
2
PI5C3244
B
PS7014A 03/13/96
PI5C3244
US
S
WITCH
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PI5C3244P Summary of contents
Page 1
... Note High Voltage Level L = Low Voltage Level Product Description: Pericom Semiconductor’s PI5C series of logic circuits are pro- duced in the Company’s advanced 0.8 micron CMOS technology, achieving industry leading performance. The 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 ...
Page 2
...
Page 3
... Max 3. Max and B Pins Open GND 1 2 Control Input Toggling 50% Duty Cycle Conditions (1) Min (2, 500 L 1.5 1.5 Pericom Semiconductor Corporation 142 8 ORT (2) Min. Typ Max. 0.1 3.0 CC (3) 2.5 0.25 PI5C3244 Max Unit 0.25 ns 5.6 ns 5.2 ns PS7014A 03/13/96 PI5C3244 S US WITCH Units µ ...