Overview
The MAX202CPWR, 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 allows operation from a single 5V supply, making it suitable for a variety of applications, including battery-powered systems, notebooks, laptops, palmtop PCs, and hand-held equipment.
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 | Human-Body Model |
| Number of Drivers and Receivers | 2 each | |
| Package Types | SOIC (D), SOIC Wide (DW), TSSOP (PW) | |
| Package Size (TSSOP PW) | 5 mm x 4.4 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 5V VCC supply.
- Operates up to 120 kbit/s data signaling rate.
- Two drivers and two receivers.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
- Dual charge-pump circuit using four external capacitors.
- Receivers have shorted and open fail-safe, accepting up to ±30V inputs and decoding inputs as low as ±3V.
- Drivers convert TTL/CMOS input levels to RS-232 levels, with outputs protected against shorts to ground.
Applications
- Battery-powered systems.
- Notebooks and laptops.
- Palmtop PCs.
- Hand-held equipment.
Q & A
- What are the key standards that the MAX202CPWR complies with?
The MAX202CPWR complies with TIA/EIA-232-F and ITU v.28 standards.
- What is the operating voltage range for the MAX202CPWR?
The operating voltage range is 4.5V to 5.5V.
- What is the maximum data signaling rate supported by the MAX202CPWR?
The maximum data signaling rate is up to 120 kbit/s.
- What level of ESD protection does the MAX202CPWR offer?
The MAX202CPWR offers ±15 kV ESD protection according to the human-body model.
- How many drivers and receivers does the MAX202CPWR have?
The MAX202CPWR has two drivers and two receivers.
- What types of packages are available for the MAX202CPWR?
The available packages include SOIC (D), SOIC Wide (DW), and TSSOP (PW).
- What is the purpose of the dual charge-pump circuit in the MAX202CPWR?
The dual charge-pump circuit allows the device to operate from a single 5V supply using four external capacitors.
- How do the receivers in the MAX202CPWR handle input voltages?
The receivers can accept up to ±30V inputs and decode inputs as low as ±3V, with shorted and open fail-safe features.
- What protection do the driver outputs have in the MAX202CPWR?
The driver outputs are protected against shorts to ground.
- What are some common applications for the MAX202CPWR?
Common applications include battery-powered systems, notebooks, laptops, palmtop PCs, and hand-held equipment.
