參數(shù)資料
型號(hào)： MAX201EWE+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 21/23頁(yè)
文件大?。?/td> 0K
描述： IC TXRX RS-232 W/CAP 16-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1,000
類型： 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 2/2
規(guī)程： RS232
電源電壓： 4.5 V ~ 5.5 V
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC W
包裝： 帶卷 (TR)
+5V, RS-232 Transceivers
with 0.1F External Capacitors
Shutdown and Enable Control
In shutdown mode, the MAX200/MAX205/MAX206/
MAX211/MAX213 charge pumps are turned off, V+ is
pulled down to VCC, V- is pulled to ground, and the
transmitter outputs are disabled. This reduces supply
current typically to 1A (15A for the MAX213). The time
required to exit shutdown is 1ms, as shown in Figure 5.
All receivers except R4 and R5 on the MAX213 are put
into a high-impedance state in shutdown mode. The
MAX213’s R4 and R5 receivers still function in shutdown
mode. These two receivers are useful for monitoring
external activity while maintaining minimal power con-
sumption.
The enable control is used to put the receiver outputs
into a high-impedance state, so that the receivers can be
connected directly to a three-state bus. It has no effect
on the RS-232 drivers or on the charge pumps.
MAX213 Receiver Operation in Shutdown
During normal operation, the MAX213’s receiver propa-
gation delay is typically 1Fs. When entering shutdown
with receivers active, R4 and R5 are not valid until 80Fs
after SHDN is driven low. In shutdown mode, propaga-
tion delays increase to 4Fs for a high-to-low or a low-to-
high transition.
When exiting shutdown, all receiver outputs are invalid
until the charge pumps reach nominal values (
< 2ms
when using 0.1FF capacitors).
Figure 5. Transmitter Outputs When Exiting Shutdown
Table 1a. MAX200 Control Pin Configurations
Table 1b. MAX205/MAX206/MAX211 Control Pin Configurations
Table 1c. MAX213 Control Pin Configurations
*Active = active with reduced performance.
TWO TRANSMITTER
OUTPUTS:
ONE HIGH, ONE LOW
SHDN*
THREE TRANSMITTERS LOADED WITH 3kI||2500pF.
*SHUTDOWN POLARITY REVERSED FOR MAX213.
SHUTDOWN
TRANSMITTERS ON
SHDN
OPERATION STATUS
TRANSMITTERS T1–T5
0
Normal Operation
All Active
1
Shutdown
All High-Z
SHDN
EN
OPERATION STATUS
TRANSMITTERS T1–T5
RECEIVERS R1–R5
0
Normal Operation
All Active
0
1
Normal Operation
All Active
All High-Z
1
0
Shutdown
All High-Z
SHDN
EN
OPERATION STATUS
TRANSMITTERS T1–T4
RECEIVERS
R1, R2, R3
R4, R5
0
Shutdown
All High-Z
High-Z
0
1
Shutdown
All High-Z
High-Z
Active*
1
0
Normal Operation
All Active
High-Z
1
Normal Operation
All Active
Active
MAX200–MAX209/MAX211/MAX213
Maxim Integrated
7
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