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PDF PI3B3257 Data sheet ( Hoja de datos )
| Número de pieza | PI3B3257 | |
| Descripción | Quad 2:1 Mux/Demux Bus Switch | |
| Fabricantes | Pericom Semiconductor Corporation | |
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PI3B32571122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
3.3V, Quad 2:1
Mux/Demux Bus Switch
Product Features
Near zero propagation delay
5-ohm switches connect inputs to outputs
Fast Switching Speed: 4.8ns max.
Ultra-Low Quiescent Power: 0.1µA typical
Ideally suited for notebook applications
Pin compatible with 74 series 257 logic devices
Packages available:
16-pin 150 mil wide plastic QSOP (Q)
16-pin 150 mil wide plastic SOIC (W)
16-pin 173 mil wide plastic TSSOP (L)
Product Description
Pericom Semiconductors PI3B series of logic circuits are produced
using the Companys advanced submicron CMOS technology,
achieving industry leading performance.
The PI3B3257 is a 3.3 Volt, Quad 2:1 multiplexer/demultiplexer with
three-state outputs that is pinout and function compatible with the
PI74FCT257T, 74F257, and 74ALS/AS/LS257. Inputs can be
connected to outputs with low ON resistance (5 ohms) with no
additional ground bounce noise or propagation delay.
Logic Block Diagram
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
E
S
16-Pin Product Configuration
S
IA0
IA1
YA
IB0
IB1
YB
GND
1 16
2 15
3 14
4
16-Pin
Q, W, L
13
5 12
6 11
7 10
89
VCC
E
ID0
ID1
YD
IC0
IC1
YC
YA YB YC YD
Truth Table(1)
E S YA YB YC YD Function
H X Hi-Z Hi-Z Hi-Z Hi-Z Disable
L
L IA0 IB0 IC0 ID0
S=0
L
H IA1 IB1 IC1 ID1
S=1
Note: 1. H = High Voltage Level
L = Low Voltage Level
Product Pin Description
Pin Name
IAn-IDn
S
E
YA-YD
GND
Vcc
NC
1
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
No Connect
PS8151F 05/07/01
1 page  
PI3B3257
3.3V, Quad 2:1
Mux/Demux Bus Switch1122334455667788990011223344556677889900112233445566778899001122112233445566778899001122334455667788990011223344556677889900112211223344556677889900112233445566778899001122334455667788990011221122334455667788990011223344556677889900112233445566778899001122112233445566778899001122
16-Pin TSSOP (L) Package
16
.169 4.3
.177 4.5
1
.193
.201
4.9
5.1
.0256
BSC
0.65
.007
.012
0.19
0.30
.047
max.
1.20
SEATING
PLANE
.002 0.05
.006 0.15
0.45 .018
0.75 .030
.252
BSC
6.4
X.XX DENOTES CONTROLLING
X.XX DIMENSIONS IN MILLIMETERS
.004 0.09
.008 0.20
Ordering Information
Part
PI3B3257Q
PI3B3257W
PI3B3257L
Pin-Package
16 - QSOP(Q)
16 - SOIC (W)
16 - TSSOP (L)
Width
150-mil
150-mil
173-mil
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5 PS8151F 05/07/01
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet PI3B3257.PDF ] | |
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