Overview
The MAX3243IPWRDL, produced by Texas Instruments, is a 3-V to 5.5-V multichannel RS-232 line driver/receiver. This device is designed to provide a single-chip and single-supply interface for IBM PC/AT serial ports, making it ideal for DE-9 DTE interfaces. It features three line drivers and five line receivers, along with robust ESD protection and flexible power management options.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 3V to 5.5V |
| Number of Drivers | 3 |
| Number of Receivers | 5 |
| Data Rate | Up to 250 kbit/s |
| ESD Protection | ±15 kV (HBM) |
| Active Current | 300 µA typical |
| Standby Current | 1 µA typical |
| Operating Temperature Range | –40°C to 85°C (MAX3243I) |
| Package Type | 28-TSSOP |
| External Capacitors | 4 × 0.1 µF |
Key Features
- Meets or exceeds TIA/EIA-232-F and ITU V.28 standards
- ±15 kV ESD (HBM) protection pin to pin, including GND
- Low active current: 300 µA typical, and low standby current: 1 µA typical
- Always-active noninverting receiver output (ROUT2B)
- Accepts 5V logic input with 3.3V supply
- Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed
- Serial-mouse driveability
Applications
The MAX3243IPWRDL is suitable for various applications requiring RS-232 serial communication, including:
- IBM PC/AT and compatible serial ports
- DE-9 DTE interfaces
- Serial mice and other serial peripherals
- Industrial control systems
- Point-of-sale terminals
Q & A
- What is the operating voltage range of the MAX3243IPWRDL?
The MAX3243IPWRDL operates with a supply voltage range of 3V to 5.5V. - How many drivers and receivers does the MAX3243IPWRDL have?
The device has three line drivers and five line receivers. - What is the maximum data rate supported by the MAX3243IPWRDL?
The device supports data rates up to 250 kbit/s. - What level of ESD protection does the MAX3243IPWRDL offer?
The device offers ±15 kV ESD protection (HBM) pin to pin, including GND. - What is the typical active current consumption of the MAX3243IPWRDL?
The typical active current is 300 µA. - Does the MAX3243IPWRDL support auto-powerdown?
Yes, the device features an auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed. - What type of package is the MAX3243IPWRDL available in?
The device is available in a 28-TSSOP package. - What are the external capacitor requirements for the MAX3243IPWRDL?
The device requires four external capacitors, each 0.1 µF. - Is the MAX3243IPWRDL compatible with 5V logic inputs when powered by a 3.3V supply?
Yes, it accepts 5V logic inputs with a 3.3V supply. - What is the operating temperature range for the MAX3243I version?
The operating temperature range for the MAX3243I version is –40°C to 85°C.
