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參數資料
| 型號： | MC74AC521N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8-BIT IDENTITY COMPARATOR |
| 中文描述： | AC SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20 |
| 封裝： | PLASTIC, DIP-20 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 180K |
| 代理商： | MC74AC521N |
5-1
FACT DATA
The MC74AC521/74ACT521 is an expandable 8-bit comparator. It
compares two words of up to eight bits each and provides a LOW output when
the two words match bit for bit. The expansion input IA=B also serves as an
active LOW enable input.
Compares Two 8-Bit Words in 6.5 ns Typ
Expandable to Any Word Length
20-Pin Package
Outputs Source/Sink 24 mA
′
ACT521 has TTL-Compatible Inputs
19
20
18
17
16
15
14
2
1
3
4
5
6
7
VCC
13
8
12
9
11
10
OA=B
B7
A7
B6
A6
B5
A5
B4
A4
IA=B
A0
B0
A1
B1
A2
B2
A3
B3
GND
PIN NAMES
A0–A7
B0–B7
IA=B
OA=B
Word A Inputs
Word B Inputs
Expansion or Enable Input
Identity Output
TRUTH TABLE
Inputs
Outputs
IA=B
L
L
H
H
A, B
OA=B
L
H
H
H
A = B*
A
≠
B
A = B*
A
≠
B
H = HIGH Voltage Level
L = LOW Voltage Level
*A0=B0, A1=B1, A2=B2, etc.
8-BIT IDENTITY
COMPARATOR
N SUFFIX
CASE 738-03
PLASTIC
DW SUFFIX
CASE 751D-04
PLASTIC
LOGIC SYMBOL
B7A7B6A6B5A5B4A4B3A3B2A2B1A1B0A0
IA=B
OA=B
相關PDF資料 |
PDF描述 |
|---|---|
| MC74ACT521N | 8-BIT IDENTITY COMPARATOR |
| MC74ACT533DW | OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
| MC74AC533DW | OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
| MC74AC533N | OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
| MC74ACT533N | OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC74AC533 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
| MC74AC533DW | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL TRANSPARENT LATCH WITH 3-STATE OUTPUTS |
| MC74AC533M | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC74AC533N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| MC74AC534 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS |
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