Overview
The MAX3238IPWR, produced by Texas Instruments, is a 3- to 5.5-V multichannel RS-232 line driver/receiver designed for a wide range of applications. This device features five line drivers and three line receivers, along with a dual charge-pump circuit that provides ±15-kV ESD protection using the Human-Body Model (HBM). It is packaged in a 28-pin TSSOP (PW) package and operates within an extended temperature range of -40°C to 85°C. The MAX3238IPWR meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards, making it suitable for various serial communication needs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | TSSOP (PW) - 28 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage | 3-V to 5.5-V |
| Data Signaling Rate | Up to 250 kbit/s |
| Driver Output Slew Rate | Maximum of 30-V/µs |
| ESD Protection | ±15 kV (HBM) |
| Number of Drivers | Five |
| Number of Receivers | Three |
| Standby Current | Typical 1 µA |
| External Capacitors | 4 × 0.1 µF |
Key Features
- RS-232 Bus-Pin ESD Protection Exceeds ±15 kV Using Human-Body Model (HBM)
- Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards
- Operates With 3-V to 5.5-V VCC Supply
- Operates up to 250 kbit/s Data Signaling Rate
- Five Drivers and Three Receivers
- Low Standby Current: Typical 1 µA
- External Capacitors: 4 × 0.1 µF
- Accepts 5-V Logic Input With 3.3-V Supply
- Always-Active Noninverting Receiver Output (ROUT1B)
- Auto-Powerdown Plus Feature for Power Management
Applications
The MAX3238IPWR is designed for use in a variety of applications, including:
- Battery-Powered Systems
- PDAs, Notebooks, Subnotebooks, Laptops, and Palmtop PCs
- Hand-Held Equipment
- Modems and Printers
Q & A
- What is the operating temperature range of the MAX3238IPWR?
The operating temperature range is -40°C to 85°C. - What is the supply voltage range for the MAX3238IPWR?
The supply voltage range is 3-V to 5.5-V. - How many drivers and receivers does the MAX3238IPWR have?
The device has five drivers and three receivers. - What is the maximum data signaling rate of the MAX3238IPWR?
The maximum data signaling rate is up to 250 kbit/s. - What type of ESD protection does the MAX3238IPWR offer?
The device offers ±15 kV ESD protection using the Human-Body Model (HBM). - What is the standby current of the MAX3238IPWR?
The typical standby current is 1 µA. - Does the MAX3238IPWR support auto-powerdown?
Yes, it features an auto-powerdown plus feature for power management. - What type of package does the MAX3238IPWR come in?
The device is packaged in a 28-pin TSSOP (PW) package. - Can the MAX3238IPWR accept 5-V logic input with a 3.3-V supply?
Yes, it can accept 5-V logic input with a 3.3-V supply. - What is the purpose of the always-active noninverting receiver output (ROUT1B)?
The always-active noninverting receiver output (ROUT1B) allows applications using the ring indicator to transmit data while the device is powered down.
