- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369312 > 74LS147 (Texas Instruments, Inc.) 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS PDF資料下載
參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 2/22頁 |
| 文件大?。?/td> | 623K |
| 代理商： | 74LS147 |
SDLS053B OCTOBER 1976 REVISED MAY 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information
These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is
encoded. The ’147 and ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal
zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level.
The ’148 and ’LS148 devices encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry
(enable input EI and enable output EO) has been provided to allow octal expansion without the need for external
circuitry. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent
one normalized Series 54/74 or 54/74LS load, respectively.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP N
Tube
SN74LS148N
SN74LS148N
0
°
C to 70
°
C
SOIC D
Tube
SN74LS148D
LS148
Tape and reel
SN74LS148DR
SOP NS
Tape and reel
SN74LS148NSR
74LS148
CDIP J
Tube
SNJ54LS148J
SNJ54LS148J
55 C to 125 C
CFP W
LCCC FK
Tube
Tube
SNJ54LS148W
SNJ54LS148FK
SNJ54LS148W
SNJ54LS148FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE ’147, ’LS147
INPUTS
OUTPUTS
1
2
3
4
5
6
7
8
9
D
C
B
A
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
L
H
H
L
X
X
X
X
X
X
X
L
H
L
H
H
H
X
X
X
X
X
X
L
H
H
H
L
L
L
X
X
X
X
X
L
H
H
H
H
L
L
H
X
X
X
X
L
H
H
H
H
H
L
H
L
X
X
X
L
H
H
H
H
H
H
L
H
H
X
X
L
H
H
H
H
H
H
H
H
L
L
X
L
H
H
H
H
H
H
H
H
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
L
H = high logic level, L = low logic level, X = irrelevant
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: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: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。