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參數(shù)資料
| 型號(hào)： | CD74HCT138MT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | HCT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封裝： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件頁數(shù)： | 15/19頁 |
| 文件大?。?/td> | 604K |
| 代理商： | CD74HCT138MT |
5
Enable to Output
HC/HCT138
tPLH, tPHL CL = 50pF
2
-
150
-
190
-
265
ns
4.5
-
30
-
38
-
53
ns
6
-
26
-
33
-
45
ns
Output Transition Time
(Figure 1)
tTLH, tTHL CL = 50pF
2
-
75
-
95
-
110
ns
4.5
-
15
-
19
-
22
ns
6
-
13
-
16
-
19
ns
Power Dissipation
Capacitance (Notes 3, 4)
CPD
CL = 15pF
5
-
67
-
pF
Input Capacitance
CIN
-
10
-
10
-
10
pF
HCT TYPES
Propagation Delay
Address to Output
tPLH, tPHL CL = 50pF
4.5
-
35
-
44
-
53
ns
CL = 15pF
5
-
14
-
ns
Enable to Output
HC/HCT138
tPLH, tPHL CL = 50pF
4.5
-
35
-
44
-
53
ns
Enable to Output
HC/HCT238
tPLH, tPHL CL = 15pF
4.5
-
40
-
50
-
60
ns
Output Transition Time
(Figure 2)
tTLH, tTHL CL = 50pF
4.5
-
15
-
19
-
22
ns
Power Dissipation
Capacitance (Notes 3, 4)
CPD
CL = 15pF
5
-
67
-
pF
Input Capacitance
CIN
-
10
-
10
-
10
pF
NOTES:
3. CPD is used to determine the dynamic power consumption, per gate.
4. PD = VCC
2 f
i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
Switching Specications Input tr, tf = 6ns (Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC (V)
25oC
-40oC TO
85oC
-55oC TO 125oC
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
Test Circuits and Waveforms
FIGURE 7. HC AND HCU TRANSITION TIMES AND PROPAGA-
TION DELAY TIMES, COMBINATION LOGIC
FIGURE 8. HCT TRANSITION TIMES AND PROPAGATION
DELAY TIMES, COMBINATION LOGIC
tPHL
tPLH
tTHL
tTLH
90%
50%
10%
50%
10%
INVERTING
OUTPUT
INPUT
GND
VCC
tr = 6ns
tf = 6ns
90%
tPHL
tPLH
tTHL
tTLH
2.7V
1.3V
0.3V
1.3V
10%
INVERTING
OUTPUT
INPUT
GND
3V
tr = 6ns
tf = 6ns
90%
CD54/74HC138, CD54/74HCT138, CD54/74HC238, CD54/74HCT238
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CD74HCT138MTE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Hi-Spd CMOS 3-8 Line Decoder/Demltplxr RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HCT138MTG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Hi Speed CMOS Logic 3-to-8 Line RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HCT139 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CD74HCT139E | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 2-of-4 Line RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| CD74HCT139E | 制造商:Texas Instruments 功能描述:74HCT CMOS 74HCT139 DIP16 5.5V |
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