- 您现在的位置：买卖IC网 > PDF目录10622 > MAX3323EEPE+ (Maxim Integrated Products)IC TXRX RS232 250KBPS 16-DIP PDF资料下载
参数资料
| 型号： | MAX3323EEPE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 250KBPS 16-DIP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 25 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 1407 (CN2011-ZH PDF) |
MAX3322E/MAX3323E
Dual Charge-Pump Voltage Converter
The MAX3322E/MAX3323Es’ internal power supply con-
sists of a regulated dual charge pump that provides out-
put voltages of +5.5V (doubling charge pump) and
-5.5V (inverting charge pump), regardless of the input
voltage (VCC), over a +3.0V to +5.5V range. The charge
pumps operate in a discontinuous mode: if the output
voltages are less than 5.5V, the charge pumps are
enabled; if the output voltages exceed 5.5V, the charge
pumps are disabled. Each charge pump requires a fly-
ing capacitor (C1, C2) and reservoir capacitor (C3, C4)
to generate the V+ and V- supplies. Because supply
voltages can vary from +3V up to +5.5V, the selection
of the capacitor values depends on the VCC value.
Table 2 shows minimum capacitor values.
RS-232 Transmitters
The transmitters are inverting level translators that con-
vert CMOS-logic levels to 5.0V EIA/TIA-232 levels. The
transmitters are enabled or disabled (three-stated) by
the logic control TXENABLE, which manages transmis-
sion-line sharing in multidrop applications. When
TXENABLE is high, the transmitter is enabled. When
TXENABLE is low, the transmitter is put in a high-
impedance state (see Table 1).
The MAX3322E/MAX3323Es’ transmitters guarantee a
250kbps data rate with worst-case loads of 3k
in par-
allel with 1000pF, providing compatibility with PC-to-PC
communication software (such as LapLink).
Transmitters can be paralleled to drive multiple
receivers or mice. Figure 3 shows a complete system
connection.
RS-232 Receivers
MAX3322E/MAX3323E receivers convert RS-232 sig-
nals to CMOS-logic output levels. The unique feature of
the receivers is the switchable input resistance. The
receiver input resistance can be 5k
or high imped-
ance. These two conditions are selectable by the logic
control RENABLE. When RENABLE is high, the 5k
resistor is connected across the receiver input and
ground. When RENABLE is low, the receiver input is
high impedance, maintaining receiving capability. This
feature permits the design of multidrop applications,
which observe RS-232 interface standards.
±15kV ESD-Protected, RS-232 Transceivers for
Multidrop Applications
6
_______________________________________________________________________________________
LapLink is a trademark of Traveling Software.
INPUT
OUTPUT
+3V
V+
0V
V-
0V
tPLH
tPHL
Figure 1. Transmitter Propagation-Delay Timing
tPHL
tPLH
50%
VCC
50%
+3V
50%
INPUT
OUTPUT
0V
50%
GND
Figure 2. Receiver Propagation-Delay Timing
MAX3322E
I/O
CHIP
WITH
UART
I/O
CHIP
POWER SUPPLY
VL
CPU
RS-232
POWER-
MANAGEMENT
UNIT OR
KEYBOARD
CONTROLLER
SHDN
Figure 3. Interface Under Control of PMU
相关PDF资料 |
PDF描述 |
|---|---|
| RM12BPE-3S | CONN PLUG 3POS W/SOCKET INSERT |
| RM12BPE-3PH | CONN PLUG 3POS W/PIN INSERT |
| RM12BPE-2S | CONN PLUG 2POS W/SOCKET INSERT |
| MAX3323EEUE+ | IC TXRX RS232 250KBPS 16-TSSOP |
| RM12BPE-2PH | CONN PLUG 2POS W/PIN INSERT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3323EEPE+ | 功能描述:RS-232接口集成电路 Transceiver For Multidrop Aps RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3323EEUE | 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3323EEUE/GH9 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX3323EEUE+ | 功能描述:RS-232接口集成电路 Transceiver For Multidrop Aps RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| MAX3323EEUE+ | 制造商:Maxim Integrated Products 功能描述:SEMICONDUCTOR ((NW)) |
发布紧急采购，3分钟左右您将得到回复。