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參數(shù)資料
| 型號(hào)： | MAX3322EEUP |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | DUAL LINE TRANSCEIVER, PDSO20 |
| 封裝： | 4.40 MM, MO-153AC, TSSOP-20 |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 329K |
| 代理商： | MAX3322EEUP |
High-input impedance is guaranteed from -13.0V to
+13.0V, when the receiver is in high-input-impedance
mode. The receiver is able to withstand the RS-232
maximum input voltage of ±25V.
Shutdown Mode
Supply current falls to less than 10μA when the
MAX3322E/MAX3323E are placed in shutdown mode
(logic low). When in shutdown mode, the devices
’
charge pumps are turned off, V+ decays to V
CC
, V- is
pulled to ground, the transmitter outputs and the
receiver outputs are disabled (high impedance), and
the receiver inputs are in high impedance (Table 1).
The device enters shutdown when V
L
or V
CC
is absent.
The time required to exit shutdown is typically 50μs, as
shown in Figure 4. Connect
SHDN
to V
CC
if shutdown
mode is not used.
V
L
Logic Supply Input
Unlike other RS-232 interface devices, in which the
receiver outputs swing between 0 and V
CC
, the
MAX3322E/MAX3323E feature a separate logic supply
input (V
L
) that sets V
OUT
for the receiver outputs and
sets thresholds for the transmit and shutdown inputs.
This feature allows a great deal of flexibility in interfac-
ing to many types of systems with different logic levels.
Connect this input to the host logic supply (1.65V
≤
V
L
≤
5.5V).
±15kV ESD Protection
To protect the MAX3322E/MAX3323E against ESD,
transmitters and receivers have extra protection against
static electricity to protect the device up to ±15kV. The
ESD structures withstand high ESD in all states: normal
operation, shutdown, and powered down. ESD protec-
tion can be tested in various ways; the transmitter and
receiver pins are characterized for protection to the fol-
lowing limits:
±15kV using the Human Body Model
±8kV using the IEC 1000-4-2 Contact Discharge
method
±15kV using the IEC 1000-4-2 Air-Gap method
Note:
ESD performance depends on many conditions.
Contact Maxim for a reliability report that documents
test setup, test methodology, and test results.
Human Body Model
Figure 5 shows the Human Body Model, and Figure 6
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 inter-
est, which is then discharged into the test device
through a 1.5k
resistor.
M
±15kV ESD-Protected, RS-232 Transceivers for
Multidrop Applications
_______________________________________________________________________________________
7
TXENABLE
1
1
1
1
0
0
0
0
RENABLE
1
1
0
0
1
1
0
0
SHDN
0
1
0
1
0
1
0
1
TRANSMITTER OUTPUT
High-Z
Active
High-Z
Active
High-Z
High-Z
High-Z
High-Z
RECEIVER OUTPUT
High-Z
Enabled
High-Z
Enabled
High-Z
Enabled
High-Z
Enabled
RECEIVER INPUT
High-Z
5k
High-Z
High-Z
High-Z
5k
High-Z
High-Z
Table 1. Tx/Rx Logic
50
μ
s/div
T2
T1
5V/div
2V/div
V
CC
= 3.3V
C1–C4 = 0.1
μ
F
Figure 4. Transmitter Outputs when Exiting Shutdown
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| MAX3323EEPE | Octal LVDS Receiver 38-TSSOP -40 to 85 |
| MAX3323EEUE | Octal LVDS Receiver 38-TSSOP -40 to 85 |
| MAX332 | 16-Channel LVDS Receiver 64-TSSOP -40 to 85 |
| MAX332MJE | Octal LVDS Transmitter 38-TSSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3322EEUP+ | 功能描述:RS-232接口集成電路 Transceiver For Multidrop Aps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3322EEUP+T | 功能描述:RS-232接口集成電路 Transceiver For Multidrop Aps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3322EEUP-T | 功能描述:RS-232接口集成電路 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3323EEPE | 功能描述:RS-232接口集成電路 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3323EEPE+ | 功能描述:RS-232接口集成電路 Transceiver For Multidrop Aps 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(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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