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26LS32 の電気的特性と機能

26LS32のメーカーはMotorola Incです、この部品の機能は「QUADEIA-422/3LINERECEIVERWITHTHREE.STATEOUTPUTS」です。


製品の詳細 ( Datasheet PDF )

部品番号 26LS32
部品説明 QUADEIA-422/3LINERECEIVERWITHTHREE.STATEOUTPUTS
メーカ Motorola Inc
ロゴ Motorola Inc ロゴ 




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26LS32 Datasheet, 26LS32 PDF,ピン配置, 機能
Order this document by AM26LS32/D
QUAD EIA-422/423 Line
Receiver with Three-State
Outputs
Motorolas Quad EIA–422/3 Receiver features four independent receiver
chains which comply with EIA Standards for the Electrical Characteristics of
Balanced/Unbalanced Voltage Digital Interface Circuits. Receiver outputs
are 74LS compatible, three–state structures which are forced to a high
impedance state when Pin 4 is a Logic “0” and Pin 12 is a Logic “1.” A PNP
device buffers each output control pin to assure minimum loading for either
Logic “1” or Logic “0” inputs. In addition, each receiver chain has internal
hysteresis circuitry to improve noise margin and discourage output instability
for slowly changing input waveforms. A summary of AM26LS32 features
include:
Four Independent Receiver Chains
Three–State Outputs
High Impedance Output Control Inputs
(PIA Compatible)
Internal Hysteresis – 30 mV (Typical) @ Zero Volts Common Mode
Fast Propagation Times – 25 ns (Typical)
TTL Compatible
Single 5.0 V Supply Voltage
Fail–Safe Input–Output Relationship. Output Always High When Inputs
Are Open, Terminated or Shorted
6.0 k Minimum Input Impedance
AM26LS32
QUAD EIA–422/3 LINE
RECEIVER WITH
THREE–STATE OUTPUTS
SEMICONDUCTOR
TECHNICAL DATA
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
PC SUFFIX
PLASTIC PACKAGE
CASE 648
PIN CONNECTIONS
Representative Block Diagram
Differential
Inputs
Three–State
Control
Inputs
Output
Input
Network
Amplifier
Hysteresis
Level
Translator
Level
Translator
Amplifier
* Note that the surface mount MC26LS32D device uses the same die as in the plastic DIP
* AM26LS32DC device, but with an MC prefix to prevent confusion with the package suffix.
MOTOROLA ANALOG IC DEVICE DATA
Inputs A
1
2+
Outputs A 3
3–State
Control 4
Output C 5
Inputs C
6+
7
GND 8
16 VCC
15
Inputs B
+ 14
13 Output B
3–State
12 Control
11 Output D
+ 10
Inputs D
9
ORDERING INFORMATION
Device
Operating
Temperature Range Package
AM26LS32PC
MC26LS32D*
TA = 0 to 70°C
Plastic DIP
SO–16
© Motorola, Inc. 1995
1

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26LS32 pdf, ピン配列
AM26LS32
SWITCHING CHARACTERISTICS (VCC = 5.0 V and TA = 25°C, unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
Propagation Delay Time – DIfferential Inputs to Output
(Output High to Low)
(Output Low to High)
Propagation Delay Time – Three–State Control to Output
(Output Low to Third State)
(Output High to Third State)
(Output Third State to High)
(Output Third State to Low)
tPHL(D)
tPLH(D)
tPLZ
tPHZ
tPZH
tPZL
ns
– 30
– 30
ns
– 35
– 35
– 30
– 30
Figure 1. Switching Test Circuit and Wave for Propagation Delay Differential Input to Output
To Scope
(Input)
Pulse
Generator
51
Differential
Inputs
+
To Scope
(Output)
CL = 15 pF
(Includes Probe
and Stray
Capacitance)
0 V + 2.0 V 3–State Control
+ 2.5 V
Input 0 V
– 2.5 V
tPLH(D)
VOH
VOL Output
0V
1.3 V
0V
tPHL(D)
1.3 V
Input Pulse Characteristics
tTLH – tTHL – 6.0 ns (10% to 90%)
PRR – 1.0 MHz, 50% Duty Cycle
Figure 2. Propagation Delay Three–State Control Input to Output
Input Pulse Characteristics
tTLH – tTHL – 6.0 ns (10% to 90%)
PRR – 1.0 MHz, 50% Duty Cycle
To Scope
(Input)
3–State
Control
To Scope
(Output)
Pulse
Generator
+ 1.5 V for tPHZ and tPZH
– 1.5 V for tPLZ and tPZL
51 2.0 V
+
Differential
Inputs
CL 15 pF
(Includes
Probe and Stray
Capacitance)
SW1
2.0 k
5.0 k
All Diodes 1N916 or
Equivalent
SW2
+ 5.0 V
3.0 V
Input
0V
[ 1.3 V
Output
VOL
3.0 V
Input
0V
VOH
Output
0V
tPLZ
1.5 V
tPLZ
SW1 Closed
SW2 Closed
0.5 V
0V
tPZH
1.5 V SW1 Open
SW2 Closed
tPZH
1.5 V
3.0 V
Input
0V
VOH
[Output
1.3 V
3.0 V
Input
0V
[ 5.0 V – VBE
Output
VOL
tPHZ
1.5 V
tPHZ
0.5 V
SW1 Closed
SW2 Closed
tPZL
1.5 V
0V
SW1 Closed
SW2 Open
tPZL
1.5 V
0V
MOTOROLA ANALOG IC DEVICE DATA
3


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Link :


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