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參數(shù)資料
| 型號(hào)： | 74F148SC |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-Line to 3-Line Priority Encoder |
| 中文描述： | F/FAST SERIES, 8-BIT ENCODER, PDSO16 |
| 封裝： | 0.150 INCH, MS-012, SOIC-16 |
| 文件頁(yè)數(shù)： | 2/8頁(yè) |
| 文件大?。?/td> | 70K |
| 代理商： | 74F148SC |
Philips Semiconductors
Product specification
74F14
Hex inverter Schmitt trigger
2
November 26, 1990
853 0331 01123
FEATURE
Industrial temperature range available (–40
°
C to +85
°
C)
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL SUPPLY
CURRENT
(TOTAL)
74F14
5.0ns
18mA
DESCRIPTION
The 74F14 contains six logic inverters which accept standard TTL
input signals and provide standard TTL output levels. They are
capable of transforming slowly changing input signals into sharply
defined, jitter free output signals. In addition, they have greater noise
margin than conventional inverters. Each circuit contains a Schmitt
trigger followed by a Darlington level shifter and a phase splitter
driving a TTL totem-pole output. The Schmitt trigger uses positive
feedback to effectively speed-up slow input transitions, and provide
different input threshold voltages for positive-going and negative-going
input threshold (typically 800mV) is determined internally by resistor
ratios and is insensitive to temperature and supply voltage variations.
PIN CONFIGURATION
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GND
V
CC
Q4
D3
Q3
D4
D5
Q5
D0
Q0
Q2
D1
Q1
D2
SF00028
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
±
10%, T
amb
= 0
°
C to +70
°
C
N74F14N
INDUSTRIAL RANGE
V
CC
= 5V
±
10%, T
amb
= –40
°
C to +85
°
C
I74F14N
PKG DWG #
14-pin plastic DIP
SOT27-1
14-pin plastic SO
N74F14D
I74F14D
SOT108-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
LOAD VALUE HIGH/LOW
Dn
Data inputs
1.0/1.0
20
μ
A/0.6mA
Qn
Data output
50/33
1.0mA/20mA
NOTE:
1
One (1.0) FAST unit load is defined as: 20
μ
A in the High state and 0.6mA in the Low state.
LOGIC DIAGRAM
V
= Pin 14
GND = Pin 7
SF00029
2
4
6
8
10
12
Q0
Q1
Q2
Q3
Q4
Q5
1
3
5
9
11
13
D0
D1
D2
D3
D4
D5
FUNCTION TABLE
INPUTS
OUTPUT
Dn
Qn
L
H
H
L
NOTES:
H = High voltage level
L
= Low voltage level
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74F148SJ | 8-Line to 3-Line Priority Encoder |
| 74F14PC | Hex Inverter Schmitt Trigger |
| 74F14SC | Hex Inverter Schmitt Trigger |
| 74F14SJ | Hex Inverter Schmitt Trigger |
| 74F151ASCX | 8-Input Digital Multiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F148SC_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ln to 3-Ln Pri Enc 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 |
| 74F148SCX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ln to 3-Ln Pri Enc 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 |
| 74F148SJ | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ln to 3-Ln Pri Enc 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 |
| 74F148SJ_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ln to 3-Ln Pri Enc 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 |
| 74F148SJX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 8-Ln to 3-Ln Pri Enc 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 |
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