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HD74BC240A の電気的特性と機能

HD74BC240AのメーカーはHitachi Semiconductorです、この部品の機能は「Octal Buffers/Line Drivers With 3 State Outputs」です。


製品の詳細 ( Datasheet PDF )

部品番号 HD74BC240A
部品説明 Octal Buffers/Line Drivers With 3 State Outputs
メーカ Hitachi Semiconductor
ロゴ Hitachi Semiconductor ロゴ 




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HD74BC240A Datasheet, HD74BC240A PDF,ピン配置, 機能
HD74BC240A
Octal Buffers/Line Drivers With 3 State Outputs
ADE-205-006A(Z)
2nd Edition
March 1993
Description
The HD74BC240A provides high drivability and operation equal to or better than high speed bipolar
standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5
of high speed bipolar logic IC, when the frequency is 10 MHz. The device has eight inverter drivers with
three state outputs in a 20 pin package. This device is a non inverting buffer and has two active low
enables (1G and 2G). Each enable independently controls 4 buffers.
Features
Input/Output are at high impedance state when power supply is off.
Built in input pull up circuit can make input pins be open, when not used.
TTL level input
Wide operating temperature range
Ta = –40 to + 85°C
Function Table
Inputs
G
H
L
L
H : High level
L : Low level
X : Immaterial
Z : High impedance
A
X
H
L
Output Y
Z
L
H

1 Page





HD74BC240A pdf, ピン配列
Recommended Operating Conditions
Item
Symbol
Min
Typ
Supply voltage
Input voltage
Output voltage
Operating temperature
VCC
VIN
VOUT
Topr
4.5
0
0
–40
5.0
Input rise/fall time*1
tr, tf
0
Note: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Max
5.5
VCC
VCC
85
8
HD74BC240A
Unit
V
V
V
°C
ns/V
Logic Diagram
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
3


3Pages


HD74BC240A 電子部品, 半導体
HD74BC240A
Waveforms-1
Input A
tf
90%
1.5 V
10%
tPLH
10%
tr
90%
1.5 V
t PHL
Output Y
1.5 V
Notes:
1. tr = 2.5 ns, tf = 2.5 ns
2. Input waveform: PRR =1 MHz, duty cycle 50%
Waveforms-2
1.5 V
3V
0V
VOH
VOL
Input G
Waveform–A
tf
90%
1.5 V
10%
t ZL
1.5 V
t ZH
tr
90%
1.5 V
10%
t LZ
VOL + 0.3 V
t HZ
3V
0V
3.5 V
VOL
Waveform–B
1.5 V
VOH – 0.3 V
VOH
Notes:
0V
1. tr = 2.5 ns, tf = 2.5 ns
2. Input waveform: PRR = 1 MHz, duty cycle 50%
3. Waveform-A shows input conditions such that the output is “L” level when enable by the
output control.
4. Waveform-B shows input conditions such that the output is “H” level when enable by the
output control.
6

6 Page



ページ 合計 : 8 ページ
 
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ダウンロード
[ HD74BC240A データシート.PDF ]


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共有リンク

Link :


部品番号部品説明メーカ
HD74BC240A

Octal Buffers/Line Drivers With 3 State Outputs

Hitachi Semiconductor
Hitachi Semiconductor


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