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參數(shù)資料
| 型號： | MAX562 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Complete 230kbps, 2.7V to 5.25V Serial Interface for Notebook Computers(2.7~5.25V,230kbps,高速RS-232串行口) |
| 中文描述： | 完備的、230kbps、2.7V至5.25V串行接口，用于筆記本電腦 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 96K |
| 代理商： | MAX562 |
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8
___________________Maxim Integrated Produc ts, 120 S an Gabriel Drive, S unnyvale, CA 94086 (408) 737-7600
1993 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
M
Complete 230kbps, 2.7V to 5.25V
S erial Interfac e for Notebook Computers
and X7R ceramic capacitors are recommended for
operation over the full temperature range.
Larger capacitors may be used for C2 and C4 (see
Typical Operating Circuit to reduce ripple on the trans-
mitter output voltages.
Power-S upply Dec oupling
In applications that are sensitive to power-supply noise,
decouple V
to ground with a capacitor similar in
value to that of the C1A and C1B charge-pump capaci-
tors. Connect the bypass capacitor as close as possi-
ble to the V
CC
and GND pins.
V + and V - as Power S upplies
A small amount of power can be drawn from V+ and V-.
Excessive loads will cause V+ and V- to fall out of
regulation. When V+ or V- are loaded, check for good
regulation over the intended operating temperature
range.
___________________Chip Topography
3
2
1
28 27 26
25
4
6
7
8
9
10
5
11 12 13 14 15
T2
IN
T3
IN
16
T3
OUT
17
18
T1
OUT
24
23
22
21
20
19
C1B-
C1A-
R1
OUT
R2
OUT
R3
OUT
R4
OUT
R5
OUT
C1B+
C1A+
V
CC
V+
GND
V-
C2+
C2-
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
T1
IN
EN
SHDN
T2
OUT
0.164"
(4.166mm)
0.135"
(3.429mm)
Table 2. Summary of EIA/TIA-232E/V.28 and EIA/TIA-562 Specifications
PARAMETER
CONDITION
EIA/TIA-232E/V.28
SPECIFICATION
EIA/TIA-562
SPECIFICATION
Driver Output Voltage
0 Level
3k
to 7k
load
5.0V to 15.0V
3.7V to 13.2V
1 Level
-5.0V to -15.0V
-3.7V to -13.2V
Maximum Output Level
No load
±25V
±13.2V
Signal Rate (3k
≤
R
L
≤
7k
)
C
L
= 2500pF
Up to 20kbps
Up to 20kbps
C
L
= 1000pF
Not defined
Up to 64kbps
Substrate connected to V+
Transistor count: 1892
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