- 您现在的位置：买卖IC网 > PDF目录97079 > SN74LS283M (ON SEMICONDUCTOR) LS SERIES, 4-BIT ADDER/SUBTRACTOR, PDSO16 PDF资料下载
参数资料
| 型号： | SN74LS283M |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | LS SERIES, 4-BIT ADDER/SUBTRACTOR, PDSO16 |
| 封装： | EIAJ, SOP-16 |
| 文件页数： | 3/7页 |
| 文件大小： | 219K |
| 代理商： | SN74LS283M |
SN74LS283
http://onsemi.com
3
LOGIC DIAGRAM
C0
A1
B1
A2
B2
A3
B3
A4
B4
∑1
∑2
∑3
∑4
C4
VCC = PIN 16
GND = PIN 8
= PIN NUMBERS
C1
C2
C3
14
1
2
6
7
3
4
5
9
11
12
10
13
15
FUNCTIONAL DESCRIPTION
The LS283 adds two 4-bit binary words (A plus B) plus
the incoming carry. The binary sum appears on the sum
outputs (∑1∑4) and outgoing carry (C4) outputs.
C0 + (A1 + B1) + 2(A2 + B2) + 4(A3 + B3) + 8(A4 + B4) = ∑1 + 2
∑2 + 4 ∑3 + 8 ∑4 + 16C4
Where: (+) = plus
Due to the symmetry of the binary add function the LS283
can be used with either all inputs and outputs active HIGH
(positive logic) or with all inputs and outputs active LOW
(negative logic). Note that with active HIGH inputs, Carry
Input can not be left open, but must be held LOW when no
carry in is intended.
Example:
C0 A1 A2 A3 A4 B1 B2 B3 B4 ∑1 ∑2 ∑3 ∑4 C4
logic levels
L
H
L
H
L
H
L
H
Active HIGH
0
1
0
1
0
1
0
1
(10+9=19)
Active LOW
1
0
1
0
1
0
1
0
(carry+5+6=12)
Interchanging inputs of equal weight does not affect the operation, thus C0, A1, B1, can be arbitrarily assigned to pins 7, 5 or 3.
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LS283MEL | LS SERIES, 4-BIT ADDER/SUBTRACTOR, PDSO16 |
| SN74LS283NS | LS SERIES, 4-BIT ADDER/SUBTRACTOR, PDIP16 |
| SN74LS28JS | LS SERIES, QUAD 2-INPUT NOR GATE, CDIP14 |
| SN74LS293DR2 | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, PDSO14 |
| SN54LS293JD | LS SERIES, ASYN NEGATIVE EDGE TRIGGERED 3-BIT UP BINARY COUNTER, CDIP14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS283ML1 | 制造商:ON Semiconductor 功能描述: |
| SN74LS283N | 功能描述:逻辑加法器与减法器 4-Bit Bnry Full Addr w/Fast Carry RoHS:否 制造商:Texas Instruments 逻辑系列:LS 封装 / 箱体:PDIP-16 高电平输出电流:- 0.4 mA 低电平输出电流:8 mA 传播延迟时间:24 ns 工作电源电压:5 V 最大功率耗散:95 mW 最大工作温度:+ 70 C 最小工作温度:0 C 封装:Tube |
| SN74LS283NDS | 制造商:Motorola Inc 功能描述:BINARY ADDER, 16 Pin, Plastic, DIP |
| SN74LS283NE4 | 功能描述:逻辑加法器与减法器 4-Bit Bnry Full Addr w/Fast Carry RoHS:否 制造商:Texas Instruments 逻辑系列:LS 封装 / 箱体:PDIP-16 高电平输出电流:- 0.4 mA 低电平输出电流:8 mA 传播延迟时间:24 ns 工作电源电压:5 V 最大功率耗散:95 mW 最大工作温度:+ 70 C 最小工作温度:0 C 封装:Tube |
| SN74LS283NS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
发布紧急采购，3分钟左右您将得到回复。