<strong>MAX3232EUE 概述
MAX3222/MAX3232/MAX3237/MAX3241收发器采用专有的低压差发送器输出级，利用双电荷泵在3.0V至5.5V电源供电时能够实现真正的RS-232性能。器件仅需四个0.1µF的外部小尺寸电荷泵电容。MAX3222、MAX3232和MAX3241确保在120kbps数据速率下维持RS-232输出电平。MAX3237在正常工作模式下可确保250kbps的数据速率，MegaBaudTM工作模式下保证1Mbps的速率，同时保持RS-232输出电平。MAX3222/MAX3232具有2路接收器和2路驱动器。MAX3222提供1µA关断模式，有效降低功耗并延长便携式产品的电池使用寿命。关断模式下，接收器保持有效状态，对外部设备(例如调制解调器)进行监测，仅消耗1µA电源电流。MAX3222和MAX3232的引脚、封装和功能分别与工业标准的MAX242和MAX232兼容。
MAX3241提供一个完整串口(3路驱动器/5路接收器)，设计用于笔记本电脑和亚笔记本电脑。MAX3237 (5路驱动器/3路接收器)可理想用于高速调制解调器。这两款器件都具有关断模式，关断时所有接收器保持有效状态，仅消耗1µA电源电流。接收器R1 (MAX3237/MAX3241)和R2 (MAX3241)除标准输出外还提供附加输出。这些附加输出始终保持有效，可以对调制解调器等外部设备进行监测，电路(可能已完全撤除VCC电源)中无需正向偏置保护二极管。
MAX3222、MAX3232以及MAX3241采用节省空间的TSSOP和SSOP封装。
MAX3232EUE ABSOLUTE MAXIMUM RATINGS
VCC .......................................-0.3V to +6V
V+ (Note 1) .................................-0.3V to +7V
V- (Note 1) ........................................+0.3V to -7V
V+ + V- (Note 1)........................................+13V
Input Voltages
T_IN, SHDN, EN .....................................-0.3V to +6V
MBAUD.....................................-0.3V to (VCC + 0.3V)
R_IN ...................................±25V
Output Voltages
T_OUT.........................................±13.2V
R_OUT ...............................-0.3V to (VCC + 0.3V)
Short-Circuit Duration
T_OUT ............................Continuous
Continuous Power Dissipation (TA = +70°C)
16-Pin TSSOP (derate 6.7mW/°C above +70°C).............533mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ....696mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C)........762mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)...842mW
18-Pin SO (derate 9.52mW/°C above +70°C)..............762mW
18-Pin Plastic DIP (derate 11.11mW/°C above +70°C) ..889mW
20-Pin SSOP (derate 7.00mW/°C above +70°C) .........559mW
20-Pin TSSOP (derate 8.0mW/°C above +70°C).............640mW
28-Pin TSSOP (derate 8.7mW/°C above +70°C).............696mW
28-Pin SSOP (derate 9.52mW/°C above +70°C) .........762mW
28-Pin SO (derate 12.50mW/°C above +70°C) .....................1W Operating Temperature Ranges
MAX32_ _C_ _.....................................................0°C to +70°C
MAX32_ _E_ _ .................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
版权所有