MAX232XD

Part: MAX232, MAX232I from Texas Instruments

Type: Dual EIA-232 Drivers/Receivers

Description: The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/EIA-232-F voltage levels from a single 5-V supply, operating up to 120 kbit/s with ±30-V input levels.

Operating Conditions:

• Supply voltage: 4.5–5.5 V
• Operating temperature: 0 to 70 °C (MAX232), -40 to 85 °C (MAX232I)
• Receiver input voltage: ±30 V
• Max data rate: 120 kbit/s

Absolute Maximum Ratings:

• Max supply voltage: 6 V
• Max junction/storage temperature: 150 °C (junction), -65 to 150 °C (storage)

Key Specs:

• Supply current (I CC): 8 mA (typ), 10 mA (max) at V CC = 5.5V, T A = 25°C
• Driver high-level output voltage (V OH): 5 V (min), 7 V (typ) at R L = 3 kΩ to GND
• Driver low-level output voltage (V OL): -7 V (typ), -5 V (max) at R L = 3 kΩ to GND
• Receiver positive-going input threshold voltage (V IT+): 1.7 V (typ), 2.4 V (max) at V CC = 5 V, T A = 25°C
• Receiver negative-going input threshold voltage (V IT-): 0.8 V (min), 1.2 V (typ) at V CC = 5 V, T A = 25°C
• Input hysteresis voltage (V hys): 0.2 V (min), 0.5 V (typ), 1 V (max) at V CC = 5 V
• Receiver input resistance (r I): 3 kΩ (min), 5 kΩ (typ), 7 kΩ (max) at V CC = 5 V, T A = 25°C
• Driver slew rate (SR): 30 V/μs (max)

Features:

• Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
• Operates From a Single 5-V Power Supply With 1.0-μF Charge-Pump Capacitors
• Operates up to 120 kbit/s
• Two Drivers and Two Receivers
• ±30-V Input Levels
• Low Supply Current: 8 mA Typical
• ESD Protection Exceeds JESD 22
• -2000-V Human-Body Model (A114-A)

Applications:

• TIA/EIA-232-F
• Battery-Powered Systems
• Terminals
• Modems
• Computers

Package:

• SOIC (16)
• PDIP (16)
• SOP (16)

• 1 · Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28
• Operates From a Single 5-V Power Supply With 1.0-μF Charge-Pump Capacitors
• Operates up to 120 kbit/s
• Two Drivers and Two Receivers
• ±30-V Input Levels
• Low Supply Current: 8 mA Typical
• ESD Protection Exceeds JESD 22
• -2000-V Human-Body Model (A114-A)
• Upgrade With Improved ESD (15-kV HBM) and 0.1-μF Charge-Pump Capacitors is Available With the MAX202 Device

• TIA/EIA-232-F
• Battery-Powered Systems
• Terminals
• Modems
• Computers

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)

over operating free-air temperature range (unless otherwise noted)

• THERMAL METRIC (1) MAX232xD SOIC MAX232xDW SOIC wide MAX232xN PDIP MAX232xNS SOP UNIT
• 16 PINS 16 PINS 16 PINS 16 PINS
• R θ JA Junction-to-ambient thermal resistance 73 57 67 64 °C/W

For proper operation add capacitors as shown in Figure 6. Pins 9 through 12 connect to UART or general purpose logic lines. EIA-232 lines will connect to a connector or cable.