参数资料
| 型号： | DS3897MX |
| 厂商： | National Semiconductor |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC TXRX BTL TRAPEZIODAL 20-SOIC |
| 标准包装： | 1,000 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 4/4 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC |
| 包装： | 带卷 (TR) |
| 其它名称： | *DS3897MX |
OBSOLETE
SNOSBX0D – JANUARY 1996 – REVISED FEBRUARY 2013
DS3896/DS3897 BTL Trapezoidal Transceivers
1
FEATURES
DESCRIPTION
These
advanced
transceivers
are
specifically
23
8 bit DS3896 Transceiver Provides High
designed to overcome problems associated with
Package Density
driving a densely populated backplane, and thus
4 bit DS3897 Tansceiver Provides Separate
provide significant improvement in both speed and
Driver Input and Receiver Output Pins
data integrity. Their low output capacitance, low
output signal swing and noise immunity features
BTL Compatible
make them ideal for driving low impedance buses
Less than 5 pF Output Capacitance for Minimal
with minimum power consumption.
Bus Loading
The DS3896 is an octal high speed schottky bus
1 Volt Bus Signal Swing Reduces Power
transceiver with common control signals, whereas the
Consumption
DS3897 is a quad device with independent driver
Trapezoidal Driver Waveforms (tr, tf
6 ns
input and receiver output pins. The DS3897 has a
typical) Reduce Noise Coupling to Adjacent
separate driver disable for each driver and is,
Lines
therefore, suitable for arbitration lines. The separate
driver disable pins (En) feature internal pull ups and
Temperature Insensitive Receiver Thresholds
may be left open if not required. On the other hand,
Track the Bus Logic High Level to Maximize
the DS3896 provides high package density for
Noise Immunity in both High and Low States
data/address lines.
Guaranteed A.C. Specifications on Noise
The
open
collector
drivers
generate
precise
Immunity and Propagation Delay Over the
trapezoidal
waveforms,
which
are
relatively
Specified Temperature and Supply Voltage
independent of capacitive loading conditions on the
Range
outputs. This significantly reduces noise coupling to
Open Collector Driver Output Allows Wire-or
adjacent lines. In addition, the receivers use a low
Connection
pass
filter
in
conjunction
with
a
high
speed
comparator, to further enhance the noise immunity
Advanced Low Power Schottky Technology
and provide equal rejection to both negative and
Glitch Free power Up/Down Protection on
positive going noise pulses on the bus.
Driver and Receiver Outputs
To minimize bus loading, these devices also feature a
TTL Compatible Driver and Control Inputs and
schottky diode in series with the open collector output
Receiver Outputs
that isolates the driver output capacitance in the
disabled state. The output low voltage is typically “1V”
and the output high level is intended to be 2V. This is
achieved by terminating the bus with a pull up resistor
to 2V at both ends. The device can drive an
equivalent DC load of 18.5
Ω (or greater) in the above
configuration.
These signaling requirements, including a 1 volt
signal swing, low output capacitance and precise
receiver
thresholds
are
referred
to
as
Bus
Transceiver Logic (BTL).
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Trapezoidal is a trademark of dcl_owner.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 1996–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3897N | 功能描述:IC TXRX BTL TRAPEZIODAL 20-DIP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,000 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) |
| DS3897N/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-Bit Bus Transceiver |
| DS3897N/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-Bit Bus Transceiver |
| DS3897V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-Bit Bus Transceiver |
| DS3898 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Octal Trapezoidal Repeater |
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