PI3B3257 查看數據表（PDF） - Pericom Semiconductor
零件编号
产品描述 (功能)
比赛名单
PI3B3257 Datasheet PDF : 5 Pages
| |||
PI3B3257
3.3V, Quad 2:1 Mux/DeMux NanoSwitch™
Features
• Near-Zero propagation delay
• 5Ω 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
• Packaging (Pb-free & Green avaliable):
– 16-pin 150 mil wide plastic QSOP (Q)
– 16-pin 150 mil wide plastic SOIC (W)
– 16-pin 173 mil wide plastic TSSOP (L)
Block Diagram
Description
Pericom Semiconductor’s 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 (5Ω) with no additional ground bounce noise or
propagation delay.
Pin Configuration
IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1
SW
SW
E
SW
SW
SW
S
SW
SW
SW
�
�
���
�
���
�
��
�
����
�
���
�
���
�
���
�
��
���
��
��
��
���
��
���
��
��
��
���
��
���
�
���
YA
YB
SW
YC
YD
I
Y
E
Truth Table(1)
E
S
YA YB
H X Hi-Z Hi-Z
L
L
IA0 IB0
L
H
IA1 IB1
Note:
1. H = High Voltage Level
L = Low Voltage Level
YC
Hi-Z
IC0
IC1
YD
Hi-Z
ID0
ID1
Function
Disable
S=0
S=1
Pin Description
Pin Name
IAN-IDN
S
E
YA-YD
GND
VCC
NC
Description
Data Inputs
Select Inputs
Enable
Data Outputs
Ground
Power
No Connect
06-0220
1
PS8151K
05/16/06
Share Link: 