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參數(shù)資料
| 型號： | 74F524SCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Magnitude Comparator |
| 中文描述： | F/FAST SERIES, 8-BIT MAGNITUDE COMPARATOR, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 131K |
| 代理商： | 74F524SCX |
Philips Semiconductors
Product specification
74F524
8-bit register comparator (open collector + 3-State)
2
1990 Aug 07
853–0373 00135
FEATURES
8-Bit bidirectional register with bus-oriented input-output
Independent serial input-output to register
Register bus comparator with ‘equal to’, ‘greater than’ and
‘less than’ outputs
Cascadable in groups of 8-bits
Open collector comparator outputs for AND-wired expansion
Two’s complement or magnitude compare
DESCRIPTION
The 74F524 is an 8-bit bidirectional register with parallel input and
output, plus serial input and output progressing from MSB to LSB.
All data inputs, serial and parallel, are loaded by the rising edge of
the clock. The device functions are controlled by two control lines
(S0, S1) to execute shift, load, hold and read out. An 8-bit
comparator examines the data stored in the registers and on the
data bus. Three true-High, open collector outputs representing
‘register equal to bus’, ‘register greater than bus’ and ‘register less
than bus’ are provided. These outputs can be disabled to the OFF
state by the use of Status Enable (SE). A mode control has also
been provided to allow Two’s Complement as well as magnitude
compare. Linking inputs are provided for expansion to longer words.
PIN CONFIGURATION
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
S0
I/O0
I/O1
I/O2
I/O3
I/O4
I/O6
I/O7
GND
CP
M
LT
C/SO
C/SI
SE
S1
V
CC
EQ
GT
I/O5
SF00970
TYPE
TYPICAL f
MAX
TYPICAL SUPPLY CURRENT
(TOTAL)
74F524
65MHz
110mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL
RANGE
V
CC
= 5V
±
10%,
T
amb
= 0
°
C to +70
°
C
PKG DWG #
20-pin plastic DIP
N74F524N
SOT146-1
20-pin plastic SOL
N74F524D
SOT163-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
70
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
3.0mA/24mA
1.0mA/20mA
OC/20mA
OC/20mA
OC/20mA
I/On
S0, S1
C/SI
CP
SE
M
I/On
C/SO
LT
EQ
GT
NOTE:
One (1.0) FAST Unit Load (U.L.) is defined as 20
μ
A in the High state and 0.6mA in the Low state.
OC=Open Collector
Parallel data inputs
Mode select inputs
Status priority or serial data input
Clock pulse input (active rising edge)
Status enable input (active Low)
Compare mode select input
3-state parallel data outputs
Status priority or serial data output
Register less than bus output
Register equal to bus output
Register greater than bus output
3.5/1.0
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
1.0/1.0
150/40
50/33
OC/33
OC/33
OC/33
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| 74F525 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Programmable Counter |
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