Overview
The MAX3243IPWR from Texas Instruments is a highly versatile and reliable RS-232 transceiver IC designed for efficient communication between devices. This device operates with a wide supply voltage range of 3V to 5.5V, making it suitable for various applications and power sources. It is particularly well-suited for portable and battery-operated devices due to its low-power design, ensuring energy efficiency without compromising performance. The MAX3243IPWR features ±15kV ESD protection on RS-232 I/O pins, enhancing reliability in challenging industrial environments. It operates smoothly in temperatures ranging from -40°C to +85°C, making it adaptable to diverse conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW) - 28 pins |
| Operating Temperature Range (°C) | -40 to 85 |
| Main Supply Voltage (V) | 3.3, 5 |
| Logic Voltage (min) (V) | 3.3 |
| Data Rate (max) (kbps) | 250 |
| ESD Protection (HBM) (kV) | ±15 |
| Number of Drivers | 3 |
| Number of Receivers | 5 |
| Active Current (typical) (µA) | 300 |
| Standby Current (typical) (µA) | 1 |
| External Capacitors | 4 × 0.1µF |
Key Features
- Operates with 3V to 5.5V VCC supply
- Single-chip and single-supply interface for IBM™ PC/AT™ serial port
- RS-232 Bus-pin ESD protection of ±15kV Using Human-Body Model (HBM)
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards
- Three drivers and five receivers
- Operates up to 250kbit/s
- Low active current: 300µA typical
- Low standby current: 1µA typical
- Accepts 5V logic input with 3.3V supply
- Always-active noninverting receiver output (ROUT2B)
- Auto-powerdown feature to disable driver outputs when no valid RS-232 signal is sensed
- Serial-mouse driveability
Applications
The MAX3243IPWR is highly versatile and can be used in a wide range of applications, including:
- Portable and battery-operated devices due to its low-power design
- Industrial environments where electrical hazards may be present, thanks to its ESD protection
- DE-9 DTE interfaces
- Serial communication in various embedded systems
- Devices requiring reliable and efficient RS-232 communication
Q & A
- What is the operating voltage range of the MAX3243IPWR?
The MAX3243IPWR operates with a supply voltage range of 3V to 5.5V.
- How many drivers and receivers does the MAX3243IPWR have?
The MAX3243IPWR has three drivers and five receivers.
- What is the maximum data rate supported by the MAX3243IPWR?
The MAX3243IPWR supports data rates up to 250 kbps.
- What kind of ESD protection does the MAX3243IPWR offer?
The MAX3243IPWR offers ±15kV ESD protection using the Human-Body Model (HBM).
- What is the typical active current consumption of the MAX3243IPWR?
The typical active current consumption is 300µA.
- Does the MAX3243IPWR support auto-powerdown?
- What is the operating temperature range of the MAX3243IPWR?
The operating temperature range is -40°C to +85°C.
- What package type is the MAX3243IPWR available in?
The MAX3243IPWR is available in a 28-pin TSSOP (PW) package.
- Does the MAX3243IPWR meet industry standards for RS-232 communication?
- Can the MAX3243IPWR accept 5V logic input with a 3.3V supply?
