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參數(shù)資料
| 型號(hào)： | 74LS147 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 中文描述： | 10線的4線和8線三線優(yōu)先編碼器 |
| 文件頁(yè)數(shù)： | 8/22頁(yè) |
| 文件大?。?/td> | 623K |
| 代理商： | 74LS147 |
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SDLS053B OCTOBER 1976 REVISED MAY 2004
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
’147
TYP
’148
TYP
UNIT
MIN
MAX
MIN
MAX
VIH
VIL
VIK
High-level input voltage
2
2
V
Low-level input voltage
0.8
0.8
V
Input clamp voltage
VCC = MIN,
VCC = MIN,
VIL = 0.8 V,
VCC = MIN,
VIL = 0.8 V,
II = 12 mA
VIH = 2 V,
IOH = 800
μ
A
VIH = 2 V,
IOL = 16 mA
1.5
1.5
V
VOH
High-level output voltage
2.4
3.3
2.4
3.3
V
VOL
Low-level output voltage
0.2
0.4
0.2
0.4
V
II
Input current at maximum input
voltage
VCC = MIN,
VI = 5.5 V
1
1
mA
IIH
High-level input
current
0 input
VCC = MAX,
VI = 2.4 V
40
Any input except 0
40
80
μ
A
IIL
Low-level input
current
Short-circuit output current§
0 input
VCC = MAX,
VI = 0.4 V
1.6
mA
Any input except 0
1.6
3.2
IOS
VCC = MAX
VCC = MAX
(See Note 5)
35
85
35
85
mA
ICC
Supply current
Condition 1
Condition 2
50
42
70
62
40
35
60
55
mA
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
All typical values are at VCC = 5 V, TA = 25
°
C.
§Not more than one output should be shorted at a time.
NOTE 5: For ’147, ICC (Condition 1) is measured with input 7 grounded, other inputs and outputs open; ICC (Condition 2) is measured with all
inputs and outputs open. For ’148, ICC (Condition 1) is measured with inputs 7 and EI grounded, other inputs and outputs open; ICC
(Condition 2) is measured with all inputs and outputs open.
SN54147, SN74147 switching characteristics, V
CC
= 5 V, T
A
= 25 C (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
WAVEFORM
TEST
CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
tPHL
tPLH
tPHL
Any
Any
In-phase output
9
14
ns
CL = 15 pF,
RL = 400
7
11
Any
Any
Out-of-phase output
13
12
19
19
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74148 | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 74LS147 | 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS |
| 74LS148 | 8-line-to-3-line Octal Priority Encoders |
| 74LS148 | 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS |
| 74LS148 | 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LS148 | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:LOW POWER SCHOTTKY |
| 74LS148N | 制造商:Texas Instruments 功能描述: |
| 74LS14DC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74LS14FP-E | 制造商:Renesas Electronics 功能描述:Cut Tape 制造商:Renesas 功能描述:Inverter Schmitt Trigger 6-Element Bipolar 14-Pin SOP |
| 74LS14N | 制造商:SIG 功能描述:74LS14N 制造商: 功能描述: 制造商:undefined 功能描述: 制造商:Misc 功能描述: |
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