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| 型号： | SN74ALS520DWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | ALS SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 |
| 封装： | GREEN, PLASTIC, SOIC-20 |
| 文件页数： | 1/19页 |
| 文件大小： | 660K |
| 代理商： | SN74ALS520DWR |
SN54ALS520, SN74ALS518, SN74ALS520, SN74ALS521
8-BIT IDENTITY COMPARATORS
SDAS224B – JUNE 1982 – REVISED NOVEMBER 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Compare Two 8-Bit Words
Choice of Totem-Pole or Open-Collector
Outputs
SN74ALS518 and ′ALS520 Have 20-k
Pullup Resistors on Q Inputs
Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) 300-mil DIPs
TYPE
INPUT
PULLUP
OUTPUT FUNCTION
AND
TYPE
PULLUP
RESISTOR
AND
CONFIGURATION
SN74ALS518
Yes
P = Q open collector
′ALS520
Yes
P = Q totem pole
SN74ALS521
No
P = Q totem pole
SN74ALS521 is identical to
′ALS688.
description
These identity comparators perform comparisons
on
two
8-bit
binary
or
BCD
words.
The
SN74ALS518 provides P = Q outputs, while the
′ALS520 and SN74ALS521 provide P = Q
outputs. The SN74ALS518 has an open-collector
output. The SN74ALS518 and
′ALS520 feature
20-k
pullup resistors on the Q inputs for analog
or switch data.
The SN54ALS520 is characterized for operation
over the full military temperature range of – 55
°C
to 125
°C. The SN74ALS518, SN74ALS520, and
SN74ALS521 are characterized for operation
from 0
°C to 70°C.
FUNCTION TABLE
INPUTS
OUTPUTS
DATA
P, Q
ENABLE
G
P = Q
P = Q
L
H
L
P > Q
LL
H
P < Q
LL
H
X
H
L
H
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
G
P0
Q0
P1
Q1
P2
Q2
P3
Q3
GND
VCC
P = Q / P = Q
Q7
P7
Q6
P6
Q5
P5
Q4
P4
SN54ALS520 ...J PACKAGE
SN74ALS518, SN74ALS520,
SN74ALS521 ... DW OR N PACKAGE
(TOP VIEW)
32 1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
Q7
P7
Q6
P6
Q5
P1
Q1
P2
Q2
P3
SN54ALS520 . . . FK PACKAGE
(TOP VIEW)
Q0
P0
G
Q4
P5
P
=
Q
Q3
GND
P4
V
CC
P = Q for SN74ALS518
P = Q for
′ALS520 and SN74ALS521
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74ALS520DWRE4 | 功能描述:校验器 IC Octal Binary/BCD Idy Comparators w/Enable RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| SN74ALS520DWRG4 | 功能描述:校验器 IC 8B Identity Comparators RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| SN74ALS520N | 功能描述:校验器 IC 8-Bit Identity RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| SN74ALS520N | 制造商:Texas Instruments 功能描述:Comparator Logic IC |
| SN74ALS520NE4 | 功能描述:校验器 IC Octal Binary/BCD Idy Comparators w/Enable RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
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