Overview
The MAX202CDR, produced by Texas Instruments, is a 5-V dual RS-232 line driver and receiver. This device is designed to provide the electrical interface between an asynchronous communication controller and the serial-port connector, adhering to the TIA/EIA-232-F and ITU v.28 standards. It features a dual charge-pump circuit that enables operation from a single 5V supply, along with ±15-kV ESD protection for the RS-232 bus pins. The MAX202CDR includes two line drivers and two line receivers, making it suitable for various applications requiring reliable serial communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 4.5 to 5.5 | V |
| Data Signaling Rate | Up to 120 | kbit/s |
| Driver Output Slew Rate | Up to 30 | V/µs |
| ESD Protection | ±15 kV | HBM |
| Number of Drivers and Receivers | 2 each | - |
| Latch-Up Performance | Exceeds 100 mA | Per JESD 78, Class II |
| Package Types | SOIC (D), SOIC Wide (DW), TSSOP (PW) | - |
| Package Size (nominal) | SOIC: 9.9mm × 6mm, SOIC Wide: 10.4mm × 10.3mm, TSSOP: 5mm × 6.4mm | mm |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- ESD protection for RS-232 bus pins: ±15-kV human-body model.
- Operates at a 5V VCC supply.
- Operates up to 120 kbit/s data signaling rate.
- Includes two line drivers and two line receivers.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Charge pump and four small external capacitors allow operation from a single 5V supply.
- RS-232 driver outputs are protected against shorts to ground.
- RS-232 receivers have shorted and open fail-safe and can accept up to ±30V inputs.
Applications
- Battery-powered systems.
- Notebooks and laptops.
- Palmtop PCs.
- Hand-held equipment.
Q & A
- What are the key standards that the MAX202CDR complies with?
The MAX202CDR meets or exceeds the requirements of TIA/EIA-232-F and ITU v.28 standards.
- What is the ESD protection level of the MAX202CDR?
The MAX202CDR has ±15-kV ESD protection for the RS-232 bus pins.
- What is the operating voltage range of the MAX202CDR?
The operating voltage range is 4.5V to 5.5V.
- What is the maximum data signaling rate supported by the MAX202CDR?
The MAX202CDR supports up to 120 kbit/s data signaling rate.
- How many line drivers and receivers does the MAX202CDR have?
The MAX202CDR includes two line drivers and two line receivers.
- What type of protection does the MAX202CDR offer for its driver outputs?
The driver outputs are protected against shorts to ground.
- What is the latch-up performance of the MAX202CDR?
The latch-up performance exceeds 100 mA per JESD 78, Class II.
- What are the typical applications of the MAX202CDR?
Typical applications include battery-powered systems, notebooks, laptops, palmtop PCs, and hand-held equipment.
- What are the package options available for the MAX202CDR?
The MAX202CDR is available in SOIC (D), SOIC Wide (DW), and TSSOP (PW) packages.
- How does the MAX202CDR handle ESD during assembly and handling?
The MAX202CDR has standard ESD protection structures on all pins and additional ESD protection on the RS-232 bus pins to protect against electrostatic discharges.
