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74AC520

AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
交流系列, 8位 同一性比较, 反向输出, PDSO20

器件类别：半导体    逻辑   

厂商名称：Fairchild

厂商官网：http://www.fairchildsemi.com/

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参数 预览 参数对比
器件参数
参数名称
属性值
功能数量
1
端子数量
20
最大工作温度
85 Cel
最小工作温度
-40 Cel
最大供电/工作电压
6 V
最小供电/工作电压
2 V
加工封装描述
0.300 INCH, MS-013, SOIC-20
无铅
Yes
欧盟RoHS规范
Yes
状态
ACTIVE
工艺
CMOS
包装形状
RECTANGULAR
包装尺寸
SMALL OUTLINE
表面贴装
Yes
端子形式
GULL WING
端子间距
1.27 mm
端子涂层
MATTE TIN
端子位置
DUAL
包装材料
PLASTIC/EPOXY
温度等级
INDUSTRIAL
系列
AC
逻辑IC类型
IDENTITY COMPARATOR
位数
8
输出极性
INVERTED
传播延迟TPD
13.5 ns
文档预览
74AC520, 74ACT520 8-Bit Identity Comparator
March 2007
74AC520, 74ACT520
8-Bit Identity Comparator
Features
■
Compares two 8-bit words in 6.5ns typ.
■
Expandable to any word length
■
20-pin package
■
Outputs source/sink 24mA
■
ACT520 has TTL-compatible inputs
tm
General Description
The AC/ACT520 are expandable 8-bit comparators.
They compare two words of up to eight bits each and
provide a LOW output when the two words match bit for
bit. The expansion input I
A
=
B
also serves as an active
LOW enable input.
Ordering Information
Order
Number
74AC520SC
74ACT520SC
74ACT520SJ
74ACT520PC
Package
Number
M20B
M20B
M20D
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300” Wide Body
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
Connection Diagram
Pin Descriptions
Pin Names
A
0
–A
7
B
0
–B
7
T
A
=
B
O
A
=
B
Description
Word A Inputs
Word B Inputs
Expansion or Enable Input
Identity Output
Truth Table
Inputs
I
A
=
B
L
L
H
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
Note:
1. A
0
=
B
0
, A
1
=
B
1
, A
2
=
B
2
, etc.
Outputs
A, B
A
=
B
(1)
A
≠
B
A
=
B
(1)
A
≠
B
O
A
=
B
L
H
H
H
FACT™ is a trademark of Fairchild Semiconductor Corporation
.
©1989 Fairchild Semiconductor Corporation
74AC520, 74ACT520 Rev. 1.4
www.fairchildsemi.com
74AC520, 74ACT520 8-Bit Identity Comparator
Logic Symbols
IEEE/IEC
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
©1989 Fairchild Semiconductor Corporation
74AC520, 74ACT520 Rev. 1.4
www.fairchildsemi.com
2
74AC520, 74ACT520 8-Bit Identity Comparator
Applications
Ripple Expansion
Parallel Expansion
©1989 Fairchild Semiconductor Corporation
74AC520, 74ACT520 Rev. 1.4
www.fairchildsemi.com
3
74AC520, 74ACT520 8-Bit Identity Comparator
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
V
CC
I
IK
Supply Voltage
DC Input Diode Current
V
I
=
–0.5V
V
I
=
V
CC
+ 0.5V
V
I
I
OK
DC Input Voltage
DC Output Diode Current
V
O
=
–0.5V
V
O
=
V
CC
+ 0.5V
V
O
I
O
DC Output Voltage
Parameter
Rating
–0.5V to +7.0V
–20mA
+20mA
–0.5V to V
CC
+ 0.5V
–20mA
+20mA
–0.5V to V
CC
+ 0.5V
±50mA
±50mA
–65°C to +150°C
140°C
DC Output Source or Sink Current
I
CC
or I
GND
DC V
CC
or Ground Current per Output Pin
T
STG
Storage Temperature
T
J
Junction Temperature
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
V
CC
Supply Voltage
AC
ACT
V
I
V
O
T
A
∆
V /
∆
t
∆
V /
∆
t
Input Voltage
Output Voltage
Operating Temperature
Parameter
Rating
2.0V to 6.0V
4.5V to 5.5V
0V to V
CC
0V to V
CC
–40°C to +85°C
125mV/ns
125mV/ns
Minimum Input Edge Rate, AC Devices:
V
IN
from 30% to 70% of V
CC
, V
CC
@ 3.3V, 4.5V, 5.5V
Minimum Input Edge Rate, ACT Devices:
V
IN
from 0.8V to 2.0V, V
CC
@ 4.5V, 5.5V
©1989 Fairchild Semiconductor Corporation
74AC520, 74ACT520 Rev. 1.4
www.fairchildsemi.com
4
74AC520, 74ACT520 8-Bit Identity Comparator
DC Electrical Characteristics for AC
T
A
=
+25°C T
A
=
–40°C to +85°C
Symbol
V
IH
Parameter
Minimum HIGH Level
Input Voltage
V
CC
(V)
3.0
4.5
5.5
3.0
4.5
5.5
3.0
4.5
5.5
Conditions
V
OUT
=
0.1V or
V
CC
– 0.1V
V
OUT
=
0.1V or
V
CC
– 0.1V
I
OUT
=
–50µA
Typ.
1.5
2.25
2.75
1.5
2.25
2.75
2.99
4.49
5.49
Guaranteed Limits
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.56
3.86
4.86
2.1
3.15
3.85
0.9
1.35
1.65
2.9
4.4
5.4
2.46
3.76
4.76
0.1
0.1
0.1
0.44
0.44
0.44
±1.0
10.0
–1.0
75
–75
4.0
40.0
8.0
Units
V
V
IL
Maximum LOW Level
Input Voltage
V
V
OH
Minimum HIGH Level
Output Voltage
V
V
IN
=
V
IL
or V
IH
:
3.0
4.5
5.5
V
OL
Maximum LOW Level
Output Voltage
3.0
4.5
5.5
V
IN
=
V
IL
or V
IH
:
3.0
4.5
5.5
I
IN(4)
I
IH
I
IL
I
OLD
I
OHD
I
CC
I
CC(4)
Maximum Input Leakage
Current
Maximum Input HIGH
Leakage Current
Maximum Input LOW
Leakage Current
Minimum Dynamic
Output Current
(3)
Maximum Quiescent
Supply Current
Maximum Quiescent
Supply Current
5.5
5.5
5.5
5.5
5.5
5.5
5.5
I
OL
= 12mA
I
OL
= 24mA
I
OL
= 24mA
(2)
V
I
=
V
CC
, GND,
A Inputs Only
V
I
=
V
CC
,
B Inputs Only
V
I
=
V
CC
,
B Inputs Only
V
OLD
=
1.65V Max.
V
OHD
=
3.85V Min.
V
IN
=
V
CC
V
IN
=
GND
2.3
–0.3
0.36
0.36
0.36
±0.1
10.0
–0.6
I
OH
= –12mA
I
OH
= –24mA
I
OH
= –24mA
(2)
I
OUT
=
50µA
0.002
0.001
0.001
0.1
0.1
0.1
V
µA
µA
mA
mA
mA
µA
mA
4.8
Notes:
2. All outputs loaded; thresholds on input associated with output under test.
3. Maximum test duration 2.0ms, one output loaded at a time.
4. I
IN
and I
CC
@ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V V
CC
.
©1989 Fairchild Semiconductor Corporation
74AC520, 74ACT520 Rev. 1.4
www.fairchildsemi.com
5
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参数对比
与74AC520相近的元器件有：74AC520_07、74AC520SC、74ACT520、74ACT520SJ、74ACT520PC、74ACT520SC。描述及对比如下：
型号 74AC520 74AC520_07 74AC520SC 74ACT520 74ACT520SJ 74ACT520PC 74ACT520SC
描述 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20 ACT SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
功能数量 1 1 1 1 1 1 1
端子数量 20 20 20 20 20 20 20
表面贴装 Yes Yes YES Yes YES NO YES
端子形式 GULL WING GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE GULL WING
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL
温度等级 INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
系列 AC AC AC AC ACT ACT ACT
位数 8 8 8 8 8 8 8
输出极性 INVERTED INVERTED INVERTED INVERTED INVERTED INVERTED INVERTED
是否Rohs认证 - - 符合 - 符合 符合 符合
厂商名称 - - Fairchild - Fairchild Fairchild Fairchild
零件包装代码 - - SOIC - SOIC DIP SOIC
包装说明 - - SOP, SOP20,.4 - 5.30 MM, EIAJ TYPE2, SOP-20 0.300 INCH, PLASTIC, MS-001, DIP-20 0.300 INCH, MS-013, SOIC-20
针数 - - 20 - 20 20 20
Reach Compliance Code - - unknow - compliant compli unknow
其他特性 - - WITH PULLUP RESISTORS ON B INPUTS; CASCADABLE - WITH PULLUP RESISTORS ON B INPUTS; CASCADABLE WITH PULLUP RESISTORS ON B INPUTS; CASCADABLE WITH PULLUP RESISTORS ON B INPUTS; CASCADABLE
JESD-30 代码 - - R-PDSO-G20 - R-PDSO-G20 R-PDIP-T20 R-PDSO-G20
JESD-609代码 - - e3 - e3 e3 e3
长度 - - 12.8 mm - 12.6 mm 26.075 mm 12.8 mm
逻辑集成电路类型 - - IDENTITY COMPARATOR - IDENTITY COMPARATOR IDENTITY COMPARATOR IDENTITY COMPARATOR
最高工作温度 - - 85 °C - 85 °C 85 °C 85 °C
最低工作温度 - - -40 °C - -40 °C -40 °C -40 °C
封装主体材料 - - PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 - - SOP - SOP DIP SOP
封装等效代码 - - SOP20,.4 - SOP20,.3 DIP20,.3 SOP20,.4
封装形状 - - RECTANGULAR - RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 - - SMALL OUTLINE - SMALL OUTLINE IN-LINE SMALL OUTLINE
峰值回流温度（摄氏度） - - 260 - 260 NOT APPLICABLE 260
电源 - - 3.3/5 V - 5 V 5 V 5 V
传播延迟（tpd） - - 13.5 ns - 11.5 ns 11.5 ns 11.5 ns
认证状态 - - Not Qualified - Not Qualified Not Qualified Not Qualified
座面最大高度 - - 2.65 mm - 2.1 mm 5.08 mm 2.65 mm
最大供电电压 (Vsup) - - 6 V - 5.5 V 5.5 V 5.5 V
最小供电电压 (Vsup) - - 2 V - 4.5 V 4.5 V 4.5 V
技术 - - CMOS - CMOS CMOS CMOS
端子面层 - - Matte Tin (Sn) - Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
端子节距 - - 1.27 mm - 1.27 mm 2.54 mm 1.27 mm
处于峰值回流温度下的最长时间 - - NOT SPECIFIED - NOT SPECIFIED NOT APPLICABLE NOT SPECIFIED
宽度 - - 7.5 mm - 5.3 mm 7.62 mm 7.5 mm
Base Number Matches - - 1 - 1 1 1
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