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MAX231

Maxim Integrated Products
Part Number MAX231
Manufacturer Maxim Integrated Products
Description (MAX220 - MAX249) +5V-Powered / Multichannel RS-232 Drivers/Receivers
Published Oct 19, 2005
Detailed Description MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description The MAX220–MAX249 family of line ...
Datasheet PDF File MAX231 PDF File

MAX231
MAX231

Overview
MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description The MAX220–MAX249 family of line drivers/receivers is intended for all EIA/TIA-232E and V.
28/V.
24 communications interfaces, particularly applications where ±12V is not available.
The MAX225, MAX233, MAX235, and MAX245/MAX246/ MAX247 use no external components and are recommended for applications where printed circuit board space is critical.
The MAX220-MAX249 are offered in 26 different packages with temperatures from 0 to +70°C up to -55°C to +125°C.
See ordering information table at the end of the data sheet for all package and temperature options.
Applications • Interface Translation • Multidrop RS-232 Networks • Portable Diagnostics Equipment AutoShutdown and UCSP are trademarks of Maxim Integrated Products, Inc.
Benefits and Features Saves Board Space • Integrated Charge Pump Circuitry • Eliminates the Need for a Bipolar ±12V Supply • Enables Single Supply Operation from +5V Supply • Integrated Capacitors (MAX223, MAX233, MAX235, MAX245-MAX247) Saves Power for Reduced Power Requirements • 5µW Shutdown Mode Ordering Information and Selection Table appears at end of data sheet.
MAX220/MAX232/MAX232A Pin Configuration and Typical Operating Circuit TOP VIEW + C1+ 1 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 MAX220 MAX232 MAX232A T2OUT 7 R2IN 8 16 VCC 15 GND 14 T1OUT 13 R1IN 12 R1OUT 11 T1IN 10 T2IN 9 R2OUT DIP/SO CAPACITANCE (μF) DEVICE C1 C2 C3 C4 C5 MAX220 0.
047 0.
33 0.
33 0.
33 0.
33 MAX232 1.
0 1.
0 1.
0 1.
0 1.
0 MAX232A 0.
1 0.
1 0.
1 0.
1 0.
1 +5V INPUT C3 C1 C2 TTL/CMOS INPUTS C5 16 1 C1+ 3 C14 C2+ 5 C2- VCC +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER V+ 2 +10V V- 6 -10V C4 +5V 400kΩ 11 T1IN T1OUT 14 +5V 400kΩ 10 T2IN T2OUT 7 RS-232 OUTPUTS TTL/CMOS OUTPUTS 12 R1OUT 9 R2OUT R1IN 13 5kΩ R2IN 8 5kΩ GND 15 RS-232 INPUTS 19-4323; Rev 17; 1/15 MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers Absolute Maximum Ratings—MAX220/222/232A/233A/242/2...


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