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MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER
description
The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator to supply EIA-232 voltage levels from a single 5-V supply. Each receiver converts EIA-232 inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V and a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each driver converts TTL/CMOS input levels into EIA-232 levels. The driver, receiver, and voltage-generator functions are available as cells in the Texas Instruments LinASIC library. The MAX232 is characterized for operation from 0°C to 70°C. The MAX232I is characterized for operation from –40°C to 85°C. A
recommended operating conditions
| MIN | NOM | MAX | UNIT | |
| Supply voltage, VCC | 4.5 | 5 | 5.5 | V |
| High-level input voltage, VIH (T1IN,T2IN) | 2 | V | ||
| Low-level input voltage, VIL (T1IN, T2IN) | 0.8 | V | ||
| Receiver input voltage, R1IN, R2IN | ±30 | V | ||
| Operating free air temperature TA MAX232 MAX232I | 0 | 70 | ||
| –40 | 85 |
