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參數(shù)資料
| 型號： | MAX3232ECPE |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS232 1MBPS LP 16-DIP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 25 |
| 類型： | 收發(fā)器 |
| 驅動器/接收器數(shù)： | 2/2 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 16-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 16-PDIP |
| 包裝： | 管件 |
±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
For the MAX3237E, all logic and RS-232 I/O pins are
characterized for protection to ±15kV per the Human
Body Model.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
Human Body Model
Figure 4a shows the Human Body Model, and Figure
4b shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the test device through a
1.5k
resistor.
IEC 1000-4-2
The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to integrated circuits. The MAX3222E/
MAX3232E/MAX3237E/MAX3241E/MAX3246E help you
design equipment that meets level 4 (the highest level)
of IEC 1000-4-2, without the need for additional ESD-
protection components.
The major difference between tests done using the
Human Body Model and IEC 1000-4-2 is higher peak
current in IEC 1000-4-2, because series resistance is
lower in the IEC 1000-4-2 model. Hence, the ESD with-
stand voltage measured to IEC 1000-4-2 is generally
lower than that measured using the Human Body
Model. Figure 5a shows the IEC 1000-4-2 model, and
Figure 5b shows the current waveform for the ±8kV IEC
1000-4-2 level 4 ESD Contact Discharge test. The Air-
Gap Discharge test involves approaching the device
with a charged probe. The Contact Discharge method
connects the probe to the device before the probe is
energized.
Machine Model
The Machine Model for ESD tests all pins using a
200pF storage capacitor and zero discharge resis-
tance. Its objective is to emulate the stress caused by
contact that occurs with handling and assembly during
manufacturing. All pins require this protection during
manufacturing, not just RS-232 inputs and outputs.
Therefore, after PC board assembly, the Machine
Model is less relevant to I/O ports.
Table 2. Required Minimum Capacitor
Values
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
0
123456789
10
MAX3222E-fig06a
LOAD CURRENT PER TRANSMITTER (mA)
TRANSMITTER
OUTPUT
VOLTAGE
(V)
VOUT+
VOUT-
VOUT+
VOUT-
VCC
VCC = 3.0V
Figure 6a. MAX3241E Transmitter Output Voltage vs. Load
Current Per Transmitter
Table 3. Logic-Family Compatibility with
Various Supply Voltages
VCC
(V)
C1
(F)
C2, C3, C4
(F)
MAX3222E/MAX3232E/MAX3241E
3.0 to 3.6
0.1
4.5 to 5.5
0.047
0.33
3.0 to 5.5
0.1
0.47
MAX3237E/MAX3246E
3.0 to 3.6
0.22
3.15 to 3.6
0.1
4.5 to 5.5
0.047
0.33
3.0 to 5.5
0.22
1.0
SYSTEM
POWER-SUPPLY
VOLTAGE
(V)
VCC SUPPLY
VOLTAGE
(V)
COMPATIBILITY
3.3
Compatible with all
CMOS families
55
Compatible with all
TTL and CMOS
families
5
3.3
Compatible with ACT
and HCT CMOS, and
with AC, HC, or
CD4000 CMOS
12
Maxim Integrated
MAX3222E/MAX3232E/MAX3237E/
MAX3241E/MAX3246E
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| MAX3232ECPWE4 | 功能描述:RS-232接口集成電路 3-5.5V MultiCh Line Driver/Receiver RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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