參數(shù)資料
型號(hào): MC74HCT244A
廠商: ON SEMICONDUCTOR
英文描述: Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs(八總線緩沖器(三態(tài)同相輸出))
中文描述: 八路三態(tài)同相緩沖器/線路驅(qū)動(dòng)器/線接收與輸入通道兼容輸入(八總線緩沖器(三態(tài)同相輸出))
文件頁(yè)數(shù): 3/8頁(yè)
文件大?。?/td> 175K
代理商: MC74HCT244A
MC74HCT244A
http://onsemi.com
3
NOTES:
1. Information on typical parametric values along with frequency or heavy load considerations can be found in Chapter 2 of the ON
Semiconductor High–Speed CMOS Data Book (DL129/D).
2. Total Supply Current = ICC +
Σ
ICC.
Current
Current
lout = 0
μ
A
5.5
2.9
2.4
mA
AC ELECTRICAL CHARACTERISTICS
(VCC = 5.0 V
±
10%, CL = 50 pF, Input tr = tf = 6 ns)
Semiconductor High–Speed CMOS Data Book (DL129/D).
Symbol
Parameter
25 C
85 C
125 C
Unit
(Figures 2 and 4)
tPLH,
Maximum Propagation Delay, A to YA or B to YB
20
25
30
tPHZ
Maximum Propagation Delay, Output Enable to YA or YB
Maximum Three–State Output Capacitance (Output in
High–Impedance State)
tPZH
(Figures 2 and 4)
ns
Maximum Output Transition Time, Any Output
12
15
18
Typical @ 25
°
C, VCC = 5.0 V
55
CPD
Power Dissipation Capacitance (Per Enabled Output)*
* Used to determine the no–load dynamic power consumption: PD = CPD VCC2f + ICC VCC. For load considerations, see Chapter 2 of the
ON Semiconductor High–Speed CMOS Data Book (DL129/D).
pF
SWITCHING WAVEFORMS
Figure 1.
Figure 2.
3 V
GND
tf
tr
INPUT
A OR B
OUTPUT
YA OR YB
0.3 V
2.7 V
10%
1.3 V
90%
tTLH
tPLH
tPHL
tTHL
ENABLE
A OR B
OUTPUT Y
OUTPUT Y
1.3 V
1.3 V
1.3 V
90%
10%
tPZL
tPLZ
tPZH
tPHZ
3 V
GND
HIGH
IMPEDANCE
VOL
VOH
HIGH
IMPEDANCE
相關(guān)PDF資料
PDF描述
MC74HCT244ADT Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
MC74HCT244ADTR2 Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
MC74HCT244ADW Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
MC74HCT244ADWR2 Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
MC74HCT244AN Octal 3-State Noninverting Buffer/Line Driver/Line Receiver with LSTTL-Compatible Inputs
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