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FST162245MTD 参数 Datasheet PDF下载

FST162245MTD图片预览
型号: FST162245MTD
PDF下载: 下载PDF文件 查看货源
内容描述: 16位总线开关与25з系列电阻的输出 [16-Bit Bus Switch with 25з Series Resistors in Outputs]
分类和应用: 总线驱动器总线收发器开关逻辑集成电路光电二极管
文件页数/大小: 4 页 / 192 K
品牌: FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
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FST162245 16-Bit Bus Switch with 25Ω Series Resistors in Outputs
April 2001
Revised April 2001
FST162245
16-Bit Bus Switch with 25
Series Resistors in Outputs
General Description
The Fairchild Switch FST162245 provides 16-bits of high-
speed CMOS TTL-compatible bus switching. The low On
Resistance of the switch allows inputs to be connected to
outputs without adding propagation delay or generating
additional ground bounce noise.
The device is organized as a 16-bit switch. There are two
8-bit switches with separate output enable inputs. When
OE is LOW, the switch is ON and Port a is connected to
Port B. When OE is HIGH, the switch is OFF and a high
impedance state exists between the A and B Ports. The
FST162245 has an equivalent 25
series resistors to
reduce signal-reflection noise, eliminating the need for
external terminating resistors.
Features
I
25
switch connection between two ports
I
Minimal propagation delay through the switch
I
Low l
CC
I
Zero bounce in flow-through mode
I
Control inputs compatible with TTL level
Ordering Code:
Order Number
FST162245MTD
Package Number
MTD48
Package Description
48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Logic Diagram
Pin Descriptions
Pin Name
OE
n
1A
n
, 2A
n
, 3A
n
, 4A
n
1B
n
, 2B
n
, 3B
n
, 4B
n
NC
Description
Output Enable Input (Active LOW)
Bus A
Bus B
No Internal Connection
Truth Table
Inputs
OE
x
L
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
Outputs
A, B
A Port
=
B Port
Z
Z
=
High Impedance
© 2001 Fairchild Semiconductor Corporation
DS500431
www.fairchildsemi.com