HIN237

Features:

• Meets All RS-232E and V.28 Specifications
• Requires Only Single +5V Power Supply
- (+5V and +12V - HIN231 and HIN239)
• High Data Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . 120kbps
• HIN233 and HIN235 Require No External Capacitors
• Onboard Voltage Doubler/Inverter
• Low Power Consumption
• Low Power Shutdown Function
• Three-State TTL/CMOS Receiver Outputs
• Multiple Drivers
- ±10V Output Swing for 5V lnput
- 300Ω Power-Off Source Impedance
- Output Current Limiting
- TTL/CMOS Compatible
- 30V/µs Maximum Slew Rate
• Multiple Receivers
- ±30V Input Voltage Range
- 3kΩ to 7kΩ Input Impedance
- 0.5V Hysteresis to Improve Noise Rejection




Application

• Any System Requiring RS-232 Communication Ports
- Computer - Portable, Mainframe, Laptop
- Peripheral - Printers and Terminals
- Instrumentation
- Modems




Pinout

Specifications

V_CC to Ground. . . . . . . . . . . . . . . . . . . . . . (GND -0.3V) < VCC < 6V
V+ to Ground . . . . . . . . . . . . . . . . . . . . . .. .(V_CC -0.3V) < V+ < 12V
V- to Ground. . . . . . . . . . . . . . . . . . . . . . .. -12V < V- < (GND +0.3V)
Input Voltages
T_IN . . . . . . . . . . . . . . . . . . . . . . . . ...(V- -0.3V) < V_IN < (V+ +0.3V)
R_IN . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . ±30V
Output Voltages
T_OUT . . . . . . . . . . . . . . . . ... . . .(V- -0.3V) < V_TXOUT < (V+ +0.3V)
R_OUT . . . . . . . . . . . . . . . . ... (GND -0.3V) < V_RXOUT < (V+ +0.3V)
Short Circuit Duration
T_OUT . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . .Continuous
R_OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous




Description

The HIN230-HIN241 family of RS-232 transmitters/receivers interface circuits meet all ElA RS-232E and V.28 specifications, and are particularly suited for those applications where ±12V is not available. They require a single +5V power supply (except HIN231 and HIN239) and feature onboard charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. The HIN233 and HIN235 require no external capacitors and are ideally suited for applications where circuit board space is critical. The  HIN230-HIN241  family of devices offer a wide variety of RS-232 transmitter/receiver combinations to accommodate various applications (see Selection Table). The drivers feature true TTL/CMOS input compatibility, slewrate- limited output, and 300Ω power-off source impedance.

The  HIN230-HIN241 receivers can handle up to ±30V, and have a 3kΩ to 7kΩ input impedance. The receivers also feature hysteresis to greatly improve noise rejection.