Overview
The MAX3232CDRG4, produced by Texas Instruments, is a 3-V to 5.5-V multichannel 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 two line drivers, two line receivers, and a dual charge-pump circuit, enabling operation from a single 3-V to 5.5-V supply. The MAX3232CDRG4 is particularly notable for its ±15-kV ESD protection terminal to terminal, including ground, making it robust against electrical discharges.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC) | - | 3 | - | 5.5 | V |
| Supply Current (ICC) | No load, VCC = 3.3 V to 5 V | 0.3 | 1 | - | mA |
| Operating Temperature | - | -40 | - | 85 | °C |
| Data Signaling Rate | - | - | - | 250 | kbit/s |
| Driver Output Slew Rate | - | - | - | 30 | V/μs |
| ESD Protection | - | - | - | ±15 kV | - |
| Package Type | - | - | - | SOIC (D) | - |
| Number of Pins | - | - | - | 16 | - |
Key Features
- Meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- Operates with a single 3-V to 5.5-V supply.
- Includes two line drivers and two line receivers.
- Dual charge-pump circuit for voltage regulation.
- ±15-kV ESD protection terminal to terminal, including ground.
- Accepts 5-V logic input with a 3.3-V supply.
- Low supply current: 300 μA typical.
- External capacitors: 4 × 0.1 μF.
- Data signaling rates up to 250 kbit/s.
- Maximum driver output slew rate of 30-V/μs.
Applications
- Battery-powered systems.
- PDAs (Personal Digital Assistants).
- Notebooks and laptops.
- Palmtop PCs.
- Hand-held equipment.
Q & A
- What is the operating voltage range of the MAX3232CDRG4?
The MAX3232CDRG4 operates with a single 3-V to 5.5-V supply.
- What are the key standards that the MAX3232CDRG4 complies with?
The device meets or exceeds the requirements of TIA/EIA-232-F and ITU V.28 standards.
- How many line drivers and receivers does the MAX3232CDRG4 have?
The MAX3232CDRG4 includes two line drivers and two line receivers.
- What is the ESD protection level of the MAX3232CDRG4?
The device has ±15-kV ESD protection terminal to terminal, including ground.
- What is the maximum data signaling rate of the MAX3232CDRG4?
The device operates at data signaling rates up to 250 kbit/s.
- What is the typical supply current of the MAX3232CDRG4?
The typical supply current is 300 μA.
- What type of package does the MAX3232CDRG4 come in?
The MAX3232CDRG4 comes in a SOIC (D) package with 16 pins.
- What is the operating temperature range of the MAX3232CDRG4?
The operating temperature range is from -40°C to 85°C.
- Can the MAX3232CDRG4 accept 5-V logic input with a 3.3-V supply?
Yes, the device can accept 5-V logic input with a 3.3-V supply.
- What are the recommended external capacitors for the MAX3232CDRG4?
The recommended external capacitors are 4 × 0.1 μF.
