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| 型号： | MAX3322EEUP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 250KBPS 20TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 2/2 |
| 规程： | RS232 |
| 电源电压： | 3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
MAX3322E/MAX3323E
Power-Supply Decoupling
In most circumstances, a 0.1F bypass capacitor is ade-
quate. In applications sensitive to power-supply noise,
decouple VCC to ground with a capacitor of the same
value as charge-pump capacitor C1. Connect bypass
capacitors as close to the IC as possible.
High Data Rates
The MAX3322E/MAX3323E maintain the RS-232 ±5.0V
minimum transmitter output voltage even at high data
rates. Figure 10 shows a transmitter loopback test cir-
cuit. Figure 11 shows a loopback test result at
125kbps, and Figure 12 shows the same test at
250kbps. For Figure 11, all transmitters were driven
simultaneously at 125kbps into RS-232 loads in parallel
with 1000pF. For Figure 12, a single transmitter was dri-
ven at 250kbps, and all transmitters were loaded with
an RS-232 receiver in parallel with 1000pF.
Interconnection with 3V and 5V Logic
The MAX3322E/MAX3323E can directly interface with
various 5V logic families, including ACT and HCT
CMOS. The logic voltage power-supply pin VL sets the
output voltage level of the receivers and the input
thresholds of the transmitters.
±15kV ESD-Protected, RS-232 Transceivers for
Multidrop Applications
10
______________________________________________________________________________________
MAX3323E
R_OUT
GND
T_IN
C2-
5
C2+
4
C1-
3
C1+
1
R_IN
5k
T_OUT
V-
6
V+
2
VCC
SHDN
C4
0.1
F
1000pF
C3
0.1
F
C1
0.1
F
0.1
F
C2
0.1
F
+3.3V
Figure 10. Loopback Test Circuit
MAX3322E fig11
2
s/div
T1IN
5V/div
T1OUT
5V/div
R1OUT
5V/div
VCC = 3.3V
Figure 11. Loopback Test Results at 125kbps
MAX3322E fig12
1
s/div
T1IN
5V/div
T1OUT
5V/div
R1OUT
5V/div
VCC = 3.3V
Figure 12. Loopback Test Results at 250kbps
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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 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: |
| 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: |
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